[PATCH 20/89] sched/headers, signals: Separate out task_struct::signal and task_struct::sighand types and accessors into <linux/sched/signal.h>

From: Ingo Molnar
Date: Mon Feb 06 2017 - 08:54:14 EST

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task_struct::signal and task_struct::sighand are pointers, which would normally make it
straightforward to not define those types in sched.h.

That is not so, because the types are accompanied by a myriad of APIs (macros and inline
functions) that dereference them.

Split the types and the APIs out of sched.h and put them into a new header, <linux/sched/signal.h>.

With this change sched.h does not know about 'struct signal' and 'struct sighand' anymore,
trying to put accessors into sched.h as a test fails the following way:

./include/linux/sched.h: In function âtest_signal_typesâ:
./include/linux/sched.h:2461:18: error: dereferencing pointer to incomplete type âstruct signal_structâ
^

This reduces the size and complexity of sched.h significantly.

Update all headers and .c code that relied on getting the signal handling
functionality from <linux/sched.h> to include <linux/sched/signal.h>.

The list of affected files was partly generated by grepping for the APIs,
and partly by doing coverage build testing, both all[yes|mod|def|no]config
builds on 64-bit and 32-bit x86, and an array of cross-architecture builds.

Nevertheless some (trivial) build breakage is still expected related to rare
Kconfig combinations and in-flight patches to various kernel code, but most
of it should be handled by this patch.

Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Mike Galbraith <efault@xxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: linux-kernel@xxxxxxxxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
arch/alpha/kernel/osf_sys.c | 2 +-
arch/alpha/kernel/signal.c | 2 +-
arch/alpha/kernel/traps.c | 2 +-
arch/alpha/mm/fault.c | 2 +-
arch/arc/kernel/traps.c | 2 +-
arch/arc/mm/fault.c | 2 +-
arch/arm/kernel/ptrace.c | 2 +-
arch/arm/kernel/traps.c | 2 +-
arch/arm/mm/alignment.c | 2 +-
arch/arm/mm/fault.c | 2 +-
arch/arm/mm/init.c | 1 +
arch/arm/mm/mmap.c | 2 +-
arch/arm/vfp/vfpmodule.c | 2 +-
arch/arm64/kernel/fpsimd.c | 2 +-
arch/arm64/kernel/ptrace.c | 2 +-
arch/arm64/kernel/traps.c | 2 +-
arch/arm64/mm/fault.c | 2 +-
arch/arm64/mm/mmap.c | 2 +-
arch/avr32/kernel/traps.c | 2 +-
arch/blackfin/kernel/trace.c | 2 +-
arch/blackfin/kernel/traps.c | 1 +
arch/cris/mm/fault.c | 1 +
arch/frv/kernel/traps.c | 2 +-
arch/h8300/kernel/ptrace_s.c | 2 +-
arch/hexagon/kernel/traps.c | 2 +-
arch/hexagon/mm/vm_fault.c | 1 +
arch/ia64/kernel/asm-offsets.c | 2 +-
arch/ia64/kernel/brl_emu.c | 2 +-
arch/ia64/kernel/mca.c | 2 +-
arch/ia64/kernel/traps.c | 2 +-
arch/ia64/kernel/unaligned.c | 2 +-
arch/ia64/mm/fault.c | 2 +-
arch/ia64/mm/init.c | 1 +
arch/mips/kernel/branch.c | 2 +-
arch/mips/kernel/signal_o32.c | 1 +
arch/mips/mm/mmap.c | 2 +-
arch/mips/sgi-ip22/ip22-berr.c | 2 +-
arch/mips/sgi-ip22/ip22-reset.c | 2 +-
arch/mn10300/kernel/fpu.c | 2 +
arch/openrisc/mm/fault.c | 2 +-
arch/parisc/kernel/sys_parisc.c | 1 +
arch/parisc/kernel/unaligned.c | 2 +-
arch/parisc/math-emu/driver.c | 3 +-
arch/powerpc/kvm/book3s_64_vio.c | 1 +
arch/powerpc/mm/mmap.c | 2 +-
arch/powerpc/mm/mmu_context_iommu.c | 2 +-
arch/powerpc/platforms/cell/spufs/fault.c | 2 +-
arch/powerpc/xmon/xmon.c | 2 +-
arch/s390/kernel/nmi.c | 3 +
arch/s390/mm/mmap.c | 1 +
arch/score/kernel/traps.c | 2 +-
arch/sh/kernel/cpu/sh2a/fpu.c | 2 +-
arch/sh/kernel/hw_breakpoint.c | 1 +
arch/sh/kernel/traps.c | 2 +
arch/sh/math-emu/math.c | 2 +-
arch/sh/mm/asids-debugfs.c | 2 +
arch/sh/mm/fault.c | 1 +
arch/sparc/kernel/sys_sparc_32.c | 2 +-
arch/sparc/kernel/sys_sparc_64.c | 2 +-
arch/sparc/kernel/unaligned_32.c | 2 +-
arch/tile/mm/mmap.c | 2 +-
arch/um/drivers/line.c | 3 +-
arch/um/kernel/reboot.c | 2 +-
arch/um/kernel/skas/mmu.c | 3 +-
arch/um/kernel/tlb.c | 3 +-
arch/um/kernel/trap.c | 2 +-
arch/unicore32/kernel/fpu-ucf64.c | 2 +-
arch/unicore32/kernel/traps.c | 1 +
arch/unicore32/mm/fault.c | 2 +-
arch/x86/entry/vsyscall/vsyscall_64.c | 1 +
arch/x86/kernel/cpu/intel_rdt_rdtgroup.c | 2 +-
arch/x86/kvm/mmu.c | 1 +
arch/x86/mm/mmap.c | 2 +-
arch/xtensa/kernel/traps.c | 2 +-
drivers/android/binder.c | 2 +-
drivers/block/drbd/drbd_int.h | 2 +-
drivers/char/snsc_event.c | 2 +-
drivers/gpu/drm/amd/amdkfd/kfd_events.c | 2 +-
drivers/gpu/drm/drm_lock.c | 2 +
drivers/gpu/drm/ttm/ttm_lock.c | 2 +-
drivers/infiniband/core/umem.c | 2 +-
drivers/infiniband/hw/hfi1/user_pages.c | 2 +-
drivers/infiniband/hw/qib/qib_user_pages.c | 1 +
drivers/infiniband/hw/usnic/usnic_uiom.c | 2 +-
drivers/isdn/i4l/isdn_tty.c | 1 +
drivers/isdn/mISDN/l1oip_core.c | 2 +
drivers/md/md.c | 1 +
drivers/md/raid1.c | 3 +
drivers/md/raid5.c | 2 +
drivers/misc/genwqe/card_dev.c | 2 +-
drivers/misc/mic/cosm/cosm_scif_server.c | 2 +
drivers/misc/mic/cosm_client/cosm_scif_client.c | 2 +
drivers/misc/mic/scif/scif_rma.c | 1 +
drivers/net/slip/slip.c | 2 +-
drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c | 2 +-
drivers/parisc/power.c | 2 +-
drivers/ps3/ps3-sys-manager.c | 1 +
drivers/s390/char/fs3270.c | 1 +
drivers/s390/char/keyboard.c | 2 +-
drivers/scsi/bnx2fc/bnx2fc.h | 2 +-
drivers/scsi/bnx2i/bnx2i.h | 2 +-
drivers/scsi/libiscsi.c | 1 +
drivers/staging/android/lowmemorykiller.c | 2 +-
drivers/staging/lustre/lnet/libcfs/linux/linux-prim.c | 2 +-
drivers/staging/rtl8188eu/include/osdep_service.h | 2 +-
drivers/staging/rtl8712/osdep_service.h | 2 +-
drivers/staging/rtl8712/rtl8712_cmd.c | 1 +
drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c | 1 +
drivers/staging/vc04_services/interface/vchiq_arm/vchiq_util.h | 2 +-
drivers/target/iscsi/iscsi_target.c | 1 +
drivers/target/iscsi/iscsi_target_erl0.c | 2 +
drivers/target/iscsi/iscsi_target_login.c | 1 +
drivers/target/iscsi/iscsi_target_nego.c | 1 +
drivers/tty/pty.c | 2 +-
drivers/tty/sysrq.c | 2 +-
drivers/tty/tty_io.c | 2 +-
drivers/tty/vt/keyboard.c | 2 +-
drivers/tty/vt/vt.c | 2 +-
drivers/tty/vt/vt_ioctl.c | 2 +-
drivers/usb/atm/usbatm.c | 2 +-
drivers/usb/core/devio.c | 1 +
drivers/usb/gadget/function/f_mass_storage.c | 1 +
drivers/vfio/vfio_iommu_spapr_tce.c | 1 +
drivers/vfio/vfio_iommu_type1.c | 2 +-
drivers/w1/w1_family.c | 2 +-
drivers/w1/w1_int.c | 1 +
fs/attr.c | 1 +
fs/autofs4/waitq.c | 1 +
fs/cifs/connect.c | 1 +
fs/coda/upcall.c | 2 +-
fs/coredump.c | 2 +-
fs/exec.c | 1 +
fs/file.c | 2 +-
fs/fs_struct.c | 2 +-
fs/jffs2/background.c | 2 +-
fs/lockd/svc.c | 2 +-
fs/ncpfs/inode.c | 1 +
fs/ncpfs/sock.c | 1 +
fs/nfs/callback.c | 1 +
fs/nfsd/nfssvc.c | 2 +-
fs/proc/fd.c | 2 +-
fs/select.c | 4 +-
include/linux/oom.h | 2 +-
include/linux/ptrace.h | 1 +
include/linux/sched.h | 496 +---------------------------
include/linux/sched/signal.h | 505 +++++++++++++++++++++++++++++
include/linux/signalfd.h | 2 +-
include/linux/taskstats_kern.h | 2 +-
ipc/mqueue.c | 1 +
kernel/bpf/syscall.c | 1 +
kernel/cpu.c | 2 +-
kernel/debug/gdbstub.c | 1 +
kernel/debug/kdb/kdb_bt.c | 2 +-
kernel/hung_task.c | 2 +
kernel/rcu/update.c | 2 +-
kernel/sched/sched.h | 1 +
kernel/time/itimer.c | 1 +
kernel/time/posix-cpu-timers.c | 2 +-
kernel/time/tick-sched.c | 2 +-
kernel/tracepoint.c | 2 +-
kernel/tsacct.c | 2 +-
kernel/user_namespace.c | 1 +
lib/is_single_threaded.c | 3 +-
mm/filemap.c | 1 +
mm/kmemleak.c | 2 +-
mm/memory-failure.c | 2 +-
mm/vmacache.c | 2 +-
net/9p/client.c | 2 +-
net/atm/common.c | 2 +-
net/ax25/af_ax25.c | 2 +-
net/caif/caif_socket.c | 2 +-
net/core/stream.c | 1 +
net/decnet/af_decnet.c | 2 +-
net/irda/af_irda.c | 1 +
net/netrom/af_netrom.c | 2 +-
net/rose/af_rose.c | 2 +-
net/sctp/socket.c | 1 +
net/sunrpc/svc.c | 2 +-
net/unix/af_unix.c | 2 +-
net/x25/af_x25.c | 2 +-
security/selinux/hooks.c | 2 +-
181 files changed, 706 insertions(+), 614 deletions(-)

diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
index 9d27a7d333dc..568ca29f2ad9 100644
--- a/arch/alpha/kernel/osf_sys.c
+++ b/arch/alpha/kernel/osf_sys.c
@@ -11,7 +11,7 @@
*/

#include <linux/errno.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/smp.h>
diff --git a/arch/alpha/kernel/signal.c b/arch/alpha/kernel/signal.c
index 17308f925306..b8221f112eee 100644
--- a/arch/alpha/kernel/signal.c
+++ b/arch/alpha/kernel/signal.c
@@ -6,7 +6,7 @@
* 1997-11-02 Modified for POSIX.1b signals by Richard Henderson
*/

-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/kernel.h>
#include <linux/signal.h>
#include <linux/errno.h>
diff --git a/arch/alpha/kernel/traps.c b/arch/alpha/kernel/traps.c
index 3328af7c2776..9596cfcbd26f 100644
--- a/arch/alpha/kernel/traps.c
+++ b/arch/alpha/kernel/traps.c
@@ -10,7 +10,7 @@

#include <linux/jiffies.h>
#include <linux/mm.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/tty.h>
#include <linux/delay.h>
#include <linux/module.h>
diff --git a/arch/alpha/mm/fault.c b/arch/alpha/mm/fault.c
index 83e9eee57a55..26ce3dafd8de 100644
--- a/arch/alpha/mm/fault.c
+++ b/arch/alpha/mm/fault.c
@@ -4,7 +4,7 @@
* Copyright (C) 1995 Linus Torvalds
*/

-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <asm/io.h>
diff --git a/arch/arc/kernel/traps.c b/arch/arc/kernel/traps.c
index c927aa84e652..ff83e78d0cfb 100644
--- a/arch/arc/kernel/traps.c
+++ b/arch/arc/kernel/traps.c
@@ -13,7 +13,7 @@
* Rahul Trivedi: Codito Technologies 2004
*/

-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/kdebug.h>
#include <linux/uaccess.h>
#include <linux/ptrace.h>
diff --git a/arch/arc/mm/fault.c b/arch/arc/mm/fault.c
index e94e5aa33985..162c97528872 100644
--- a/arch/arc/mm/fault.c
+++ b/arch/arc/mm/fault.c
@@ -9,7 +9,7 @@

#include <linux/signal.h>
#include <linux/interrupt.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/errno.h>
#include <linux/ptrace.h>
#include <linux/uaccess.h>
diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c
index ce131ed5939d..fa1b63aed27c 100644
--- a/arch/arm/kernel/ptrace.c
+++ b/arch/arm/kernel/ptrace.c
@@ -10,7 +10,7 @@
* published by the Free Software Foundation.
*/
#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/mm.h>
#include <linux/elf.h>
#include <linux/smp.h>
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index 9688ec0c6ef4..dc5f1a22b3c9 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -24,7 +24,7 @@
#include <linux/bug.h>
#include <linux/delay.h>
#include <linux/init.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/irq.h>

#include <linux/atomic.h>
diff --git a/arch/arm/mm/alignment.c b/arch/arm/mm/alignment.c
index 7d5f4c736a16..d7fe2de9cc9e 100644
--- a/arch/arm/mm/alignment.c
+++ b/arch/arm/mm/alignment.c
@@ -19,7 +19,7 @@
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/init.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/uaccess.h>

#include <asm/cp15.h>
diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c
index 3a2e678b8d30..ce07bf408308 100644
--- a/arch/arm/mm/fault.c
+++ b/arch/arm/mm/fault.c
@@ -16,7 +16,7 @@
#include <linux/kprobes.h>
#include <linux/uaccess.h>
#include <linux/page-flags.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/highmem.h>
#include <linux/perf_event.h>

diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 370581aeb871..f234aab42f70 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -13,6 +13,7 @@
#include <linux/init.h>
#include <linux/bootmem.h>
#include <linux/mman.h>
+#include <linux/sched/signal.h>
#include <linux/export.h>
#include <linux/nodemask.h>
#include <linux/initrd.h>
diff --git a/arch/arm/mm/mmap.c b/arch/arm/mm/mmap.c
index 66353caa35b9..d448f9cd7715 100644
--- a/arch/arm/mm/mmap.c
+++ b/arch/arm/mm/mmap.c
@@ -5,7 +5,7 @@
#include <linux/mm.h>
#include <linux/mman.h>
#include <linux/shm.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/io.h>
#include <linux/personality.h>
#include <linux/random.h>
diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c
index 569d5a650a4a..a71a48e71fff 100644
--- a/arch/arm/vfp/vfpmodule.c
+++ b/arch/arm/vfp/vfpmodule.c
@@ -15,7 +15,7 @@
#include <linux/kernel.h>
#include <linux/notifier.h>
#include <linux/signal.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/smp.h>
#include <linux/init.h>
#include <linux/uaccess.h>
diff --git a/arch/arm64/kernel/fpsimd.c b/arch/arm64/kernel/fpsimd.c
index b883f1f75216..06da8ea16bbe 100644
--- a/arch/arm64/kernel/fpsimd.c
+++ b/arch/arm64/kernel/fpsimd.c
@@ -21,7 +21,7 @@
#include <linux/cpu_pm.h>
#include <linux/kernel.h>
#include <linux/init.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/signal.h>
#include <linux/hardirq.h>

diff --git a/arch/arm64/kernel/ptrace.c b/arch/arm64/kernel/ptrace.c
index a22161ccf447..64fc32ea3422 100644
--- a/arch/arm64/kernel/ptrace.c
+++ b/arch/arm64/kernel/ptrace.c
@@ -22,7 +22,7 @@
#include <linux/audit.h>
#include <linux/compat.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/mm.h>
#include <linux/smp.h>
#include <linux/ptrace.h>
diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c
index 659b2e6b6cf7..643adaed694c 100644
--- a/arch/arm64/kernel/traps.c
+++ b/arch/arm64/kernel/traps.c
@@ -29,7 +29,7 @@
#include <linux/kexec.h>
#include <linux/delay.h>
#include <linux/init.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/syscalls.h>

#include <asm/atomic.h>
diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c
index 156169c6981b..f2d54ee2fa96 100644
--- a/arch/arm64/mm/fault.c
+++ b/arch/arm64/mm/fault.c
@@ -26,7 +26,7 @@
#include <linux/kprobes.h>
#include <linux/uaccess.h>
#include <linux/page-flags.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/highmem.h>
#include <linux/perf_event.h>
#include <linux/preempt.h>
diff --git a/arch/arm64/mm/mmap.c b/arch/arm64/mm/mmap.c
index 01c171723bb3..1e0a2650c88b 100644
--- a/arch/arm64/mm/mmap.c
+++ b/arch/arm64/mm/mmap.c
@@ -22,7 +22,7 @@
#include <linux/mman.h>
#include <linux/export.h>
#include <linux/shm.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/io.h>
#include <linux/personality.h>
#include <linux/random.h>
diff --git a/arch/avr32/kernel/traps.c b/arch/avr32/kernel/traps.c
index eb4a3fcfbaff..50b541325025 100644
--- a/arch/avr32/kernel/traps.c
+++ b/arch/avr32/kernel/traps.c
@@ -14,7 +14,7 @@
#include <linux/extable.h>
#include <linux/module.h> /* print_modules */
#include <linux/notifier.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/uaccess.h>

#include <asm/addrspace.h>
diff --git a/arch/blackfin/kernel/trace.c b/arch/blackfin/kernel/trace.c
index 719dd796c12c..01e546ad2f7a 100644
--- a/arch/blackfin/kernel/trace.c
+++ b/arch/blackfin/kernel/trace.c
@@ -11,7 +11,7 @@
#include <linux/thread_info.h>
#include <linux/mm.h>
#include <linux/oom.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/uaccess.h>
#include <linux/module.h>
#include <linux/kallsyms.h>
diff --git a/arch/blackfin/kernel/traps.c b/arch/blackfin/kernel/traps.c
index 1ed85ddadc0d..32676d7721b1 100644
--- a/arch/blackfin/kernel/traps.c
+++ b/arch/blackfin/kernel/traps.c
@@ -9,6 +9,7 @@
#include <linux/bug.h>
#include <linux/uaccess.h>
#include <linux/module.h>
+#include <linux/sched/signal.h>
#include <asm/traps.h>
#include <asm/cplb.h>
#include <asm/blackfin.h>
diff --git a/arch/cris/mm/fault.c b/arch/cris/mm/fault.c
index 94183d3639ef..1fca464f1b9e 100644
--- a/arch/cris/mm/fault.c
+++ b/arch/cris/mm/fault.c
@@ -8,6 +8,7 @@
#include <linux/interrupt.h>
#include <linux/extable.h>
#include <linux/wait.h>
+#include <linux/sched/signal.h>
#include <linux/uaccess.h>
#include <arch/system.h>

diff --git a/arch/frv/kernel/traps.c b/arch/frv/kernel/traps.c
index 31221fb4348e..43c134d6081c 100644
--- a/arch/frv/kernel/traps.c
+++ b/arch/frv/kernel/traps.c
@@ -9,7 +9,7 @@
* 2 of the License, or (at your option) any later version.
*/

-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/signal.h>
#include <linux/kernel.h>
#include <linux/mm.h>
diff --git a/arch/h8300/kernel/ptrace_s.c b/arch/h8300/kernel/ptrace_s.c
index ef5a9c13e76d..c0af930052c0 100644
--- a/arch/h8300/kernel/ptrace_s.c
+++ b/arch/h8300/kernel/ptrace_s.c
@@ -10,7 +10,7 @@
*/

#include <linux/linkage.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/errno.h>
#include <asm/ptrace.h>

diff --git a/arch/hexagon/kernel/traps.c b/arch/hexagon/kernel/traps.c
index 110dab152f82..4496bcf605ef 100644
--- a/arch/hexagon/kernel/traps.c
+++ b/arch/hexagon/kernel/traps.c
@@ -19,7 +19,7 @@
*/

#include <linux/init.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/module.h>
#include <linux/kallsyms.h>
#include <linux/kdebug.h>
diff --git a/arch/hexagon/mm/vm_fault.c b/arch/hexagon/mm/vm_fault.c
index de863d6d802b..6e4a4dab8b8c 100644
--- a/arch/hexagon/mm/vm_fault.c
+++ b/arch/hexagon/mm/vm_fault.c
@@ -28,6 +28,7 @@
#include <asm/traps.h>
#include <linux/uaccess.h>
#include <linux/mm.h>
+#include <linux/sched/signal.h>
#include <linux/signal.h>
#include <linux/module.h>
#include <linux/hardirq.h>
diff --git a/arch/ia64/kernel/asm-offsets.c b/arch/ia64/kernel/asm-offsets.c
index 60ef83e6db71..8786c8b4f187 100644
--- a/arch/ia64/kernel/asm-offsets.c
+++ b/arch/ia64/kernel/asm-offsets.c
@@ -6,7 +6,7 @@

#define ASM_OFFSETS_C 1

-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/pid.h>
#include <linux/clocksource.h>
#include <linux/kbuild.h>
diff --git a/arch/ia64/kernel/brl_emu.c b/arch/ia64/kernel/brl_emu.c
index 8682df6263d6..987b11be0021 100644
--- a/arch/ia64/kernel/brl_emu.c
+++ b/arch/ia64/kernel/brl_emu.c
@@ -8,7 +8,7 @@
*/

#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/uaccess.h>
#include <asm/processor.h>

diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c
index 9509cc73b9c6..5ac51069e453 100644
--- a/arch/ia64/kernel/mca.c
+++ b/arch/ia64/kernel/mca.c
@@ -72,7 +72,7 @@
#include <linux/jiffies.h>
#include <linux/types.h>
#include <linux/init.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/bootmem.h>
diff --git a/arch/ia64/kernel/traps.c b/arch/ia64/kernel/traps.c
index 095bfaff82d0..39fad147d6fe 100644
--- a/arch/ia64/kernel/traps.c
+++ b/arch/ia64/kernel/traps.c
@@ -9,7 +9,7 @@

#include <linux/kernel.h>
#include <linux/init.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/tty.h>
#include <linux/vt_kern.h> /* For unblank_screen() */
#include <linux/module.h> /* for EXPORT_SYMBOL */
diff --git a/arch/ia64/kernel/unaligned.c b/arch/ia64/kernel/unaligned.c
index 9cd01c2200ee..a2a72bc2ac15 100644
--- a/arch/ia64/kernel/unaligned.c
+++ b/arch/ia64/kernel/unaligned.c
@@ -15,7 +15,7 @@
*/
#include <linux/jiffies.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/tty.h>
#include <linux/ratelimit.h>

diff --git a/arch/ia64/mm/fault.c b/arch/ia64/mm/fault.c
index fa6ad95e992e..e9735cc3b81f 100644
--- a/arch/ia64/mm/fault.c
+++ b/arch/ia64/mm/fault.c
@@ -4,7 +4,7 @@
* Copyright (C) 1998-2002 Hewlett-Packard Co
* David Mosberger-Tang <davidm@xxxxxxxxxx>
*/
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/interrupt.h>
diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
index bb4610faca84..cba5291ac211 100644
--- a/arch/ia64/mm/init.c
+++ b/arch/ia64/mm/init.c
@@ -12,6 +12,7 @@
#include <linux/elf.h>
#include <linux/memblock.h>
#include <linux/mm.h>
+#include <linux/sched/signal.h>
#include <linux/mmzone.h>
#include <linux/module.h>
#include <linux/personality.h>
diff --git a/arch/mips/kernel/branch.c b/arch/mips/kernel/branch.c
index ae037a304ee4..b11facd11c9d 100644
--- a/arch/mips/kernel/branch.c
+++ b/arch/mips/kernel/branch.c
@@ -7,7 +7,7 @@
* Copyright (C) 2001 MIPS Technologies, Inc.
*/
#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/signal.h>
#include <linux/export.h>
#include <asm/branch.h>
diff --git a/arch/mips/kernel/signal_o32.c b/arch/mips/kernel/signal_o32.c
index 5e169fc5ca5c..2b3572fb5f1b 100644
--- a/arch/mips/kernel/signal_o32.c
+++ b/arch/mips/kernel/signal_o32.c
@@ -11,6 +11,7 @@
#include <linux/compiler.h>
#include <linux/errno.h>
#include <linux/signal.h>
+#include <linux/sched/signal.h>
#include <linux/uaccess.h>

#include <asm/abi.h>
diff --git a/arch/mips/mm/mmap.c b/arch/mips/mm/mmap.c
index d08ea3ff0f53..1462b0b1807a 100644
--- a/arch/mips/mm/mmap.c
+++ b/arch/mips/mm/mmap.c
@@ -13,7 +13,7 @@
#include <linux/export.h>
#include <linux/personality.h>
#include <linux/random.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>

unsigned long shm_align_mask = PAGE_SIZE - 1; /* Sane caches */
EXPORT_SYMBOL(shm_align_mask);
diff --git a/arch/mips/sgi-ip22/ip22-berr.c b/arch/mips/sgi-ip22/ip22-berr.c
index 3f6ccd53c15d..ff8e1935c873 100644
--- a/arch/mips/sgi-ip22/ip22-berr.c
+++ b/arch/mips/sgi-ip22/ip22-berr.c
@@ -6,7 +6,7 @@

#include <linux/init.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>

#include <asm/addrspace.h>
#include <asm/traps.h>
diff --git a/arch/mips/sgi-ip22/ip22-reset.c b/arch/mips/sgi-ip22/ip22-reset.c
index 2f45b0357021..5f6508daa176 100644
--- a/arch/mips/sgi-ip22/ip22-reset.c
+++ b/arch/mips/sgi-ip22/ip22-reset.c
@@ -11,7 +11,7 @@
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/notifier.h>
#include <linux/pm.h>
#include <linux/timer.h>
diff --git a/arch/mn10300/kernel/fpu.c b/arch/mn10300/kernel/fpu.c
index 2578b7ae7dd5..50ce7b447fed 100644
--- a/arch/mn10300/kernel/fpu.c
+++ b/arch/mn10300/kernel/fpu.c
@@ -9,6 +9,8 @@
* 2 of the Licence, or (at your option) any later version.
*/
#include <linux/uaccess.h>
+#include <linux/sched/signal.h>
+
#include <asm/fpu.h>
#include <asm/elf.h>
#include <asm/exceptions.h>
diff --git a/arch/openrisc/mm/fault.c b/arch/openrisc/mm/fault.c
index b1a7435e786a..617a52e5ceef 100644
--- a/arch/openrisc/mm/fault.c
+++ b/arch/openrisc/mm/fault.c
@@ -18,7 +18,7 @@
#include <linux/mm.h>
#include <linux/interrupt.h>
#include <linux/module.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>

#include <linux/uaccess.h>
#include <asm/siginfo.h>
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index bf3294171230..ce07cd3f2507 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -30,6 +30,7 @@
#include <linux/linkage.h>
#include <linux/mm.h>
#include <linux/mman.h>
+#include <linux/sched/signal.h>
#include <linux/shm.h>
#include <linux/syscalls.h>
#include <linux/utsname.h>
diff --git a/arch/parisc/kernel/unaligned.c b/arch/parisc/kernel/unaligned.c
index 0a21067ac0a3..a08ab481e556 100644
--- a/arch/parisc/kernel/unaligned.c
+++ b/arch/parisc/kernel/unaligned.c
@@ -23,7 +23,7 @@
#include <linux/jiffies.h>
#include <linux/kernel.h>
#include <linux/module.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/signal.h>
#include <linux/ratelimit.h>
#include <linux/uaccess.h>
diff --git a/arch/parisc/math-emu/driver.c b/arch/parisc/math-emu/driver.c
index 09ef4136c693..2fb59d2e2b29 100644
--- a/arch/parisc/math-emu/driver.c
+++ b/arch/parisc/math-emu/driver.c
@@ -27,7 +27,8 @@
* Copyright (C) 2001 Hewlett-Packard <bame@xxxxxxxxxx>
*/

-#include <linux/sched.h>
+#include <linux/sched/signal.h>
+
#include "float.h"
#include "math-emu.h"

diff --git a/arch/powerpc/kvm/book3s_64_vio.c b/arch/powerpc/kvm/book3s_64_vio.c
index c379ff5a4438..559aaebcf259 100644
--- a/arch/powerpc/kvm/book3s_64_vio.c
+++ b/arch/powerpc/kvm/book3s_64_vio.c
@@ -24,6 +24,7 @@
#include <linux/highmem.h>
#include <linux/gfp.h>
#include <linux/slab.h>
+#include <linux/sched/signal.h>
#include <linux/hugetlb.h>
#include <linux/list.h>
#include <linux/anon_inodes.h>
diff --git a/arch/powerpc/mm/mmap.c b/arch/powerpc/mm/mmap.c
index 2f1e44362198..8013861aeaa7 100644
--- a/arch/powerpc/mm/mmap.c
+++ b/arch/powerpc/mm/mmap.c
@@ -25,7 +25,7 @@
#include <linux/personality.h>
#include <linux/mm.h>
#include <linux/random.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/elf-randomize.h>
#include <linux/security.h>
#include <linux/mman.h>
diff --git a/arch/powerpc/mm/mmu_context_iommu.c b/arch/powerpc/mm/mmu_context_iommu.c
index 104bad029ce9..45ca74bf9d41 100644
--- a/arch/powerpc/mm/mmu_context_iommu.c
+++ b/arch/powerpc/mm/mmu_context_iommu.c
@@ -10,7 +10,7 @@
*
*/

-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/slab.h>
#include <linux/rculist.h>
#include <linux/vmalloc.h>
diff --git a/arch/powerpc/platforms/cell/spufs/fault.c b/arch/powerpc/platforms/cell/spufs/fault.c
index e29e4d5afa2d..870c0a82d560 100644
--- a/arch/powerpc/platforms/cell/spufs/fault.c
+++ b/arch/powerpc/platforms/cell/spufs/fault.c
@@ -19,7 +19,7 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/mm.h>

#include <asm/spu.h>
diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index 3f864c36d847..7c06ec50484a 100644
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -13,7 +13,7 @@

#include <linux/kernel.h>
#include <linux/errno.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/smp.h>
#include <linux/mm.h>
#include <linux/reboot.h>
diff --git a/arch/s390/kernel/nmi.c b/arch/s390/kernel/nmi.c
index 9862196b4b89..578c4ab95aa9 100644
--- a/arch/s390/kernel/nmi.c
+++ b/arch/s390/kernel/nmi.c
@@ -14,6 +14,9 @@
#include <linux/hardirq.h>
#include <linux/time.h>
#include <linux/module.h>
+#include <linux/module.h>
+#include <linux/sched/signal.h>
+
#include <asm/lowcore.h>
#include <asm/smp.h>
#include <asm/stp.h>
diff --git a/arch/s390/mm/mmap.c b/arch/s390/mm/mmap.c
index eb9df2822da1..40c1587169ec 100644
--- a/arch/s390/mm/mmap.c
+++ b/arch/s390/mm/mmap.c
@@ -26,6 +26,7 @@
#include <linux/personality.h>
#include <linux/mm.h>
#include <linux/mman.h>
+#include <linux/sched/signal.h>
#include <linux/module.h>
#include <linux/random.h>
#include <linux/compat.h>
diff --git a/arch/score/kernel/traps.c b/arch/score/kernel/traps.c
index d948a6818961..42956543a3fc 100644
--- a/arch/score/kernel/traps.c
+++ b/arch/score/kernel/traps.c
@@ -24,7 +24,7 @@
*/

#include <linux/module.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>

#include <asm/cacheflush.h>
#include <asm/irq.h>
diff --git a/arch/sh/kernel/cpu/sh2a/fpu.c b/arch/sh/kernel/cpu/sh2a/fpu.c
index 98bbaa447c93..352f894bece1 100644
--- a/arch/sh/kernel/cpu/sh2a/fpu.c
+++ b/arch/sh/kernel/cpu/sh2a/fpu.c
@@ -9,7 +9,7 @@
*
* FIXME! These routines can be optimized in big endian case.
*/
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/signal.h>
#include <asm/processor.h>
#include <asm/io.h>
diff --git a/arch/sh/kernel/hw_breakpoint.c b/arch/sh/kernel/hw_breakpoint.c
index 2197fc584186..afe965712a69 100644
--- a/arch/sh/kernel/hw_breakpoint.c
+++ b/arch/sh/kernel/hw_breakpoint.c
@@ -11,6 +11,7 @@
*/
#include <linux/init.h>
#include <linux/perf_event.h>
+#include <linux/sched/signal.h>
#include <linux/hw_breakpoint.h>
#include <linux/percpu.h>
#include <linux/kallsyms.h>
diff --git a/arch/sh/kernel/traps.c b/arch/sh/kernel/traps.c
index dfdad72c61ca..d82845c8e18a 100644
--- a/arch/sh/kernel/traps.c
+++ b/arch/sh/kernel/traps.c
@@ -9,6 +9,8 @@
#include <linux/kernel.h>
#include <linux/kexec.h>
#include <linux/module.h>
+#include <linux/sched/signal.h>
+
#include <asm/unwinder.h>
#include <asm/traps.h>

diff --git a/arch/sh/math-emu/math.c b/arch/sh/math-emu/math.c
index 5078cb809750..c86f4360c6ce 100644
--- a/arch/sh/math-emu/math.c
+++ b/arch/sh/math-emu/math.c
@@ -10,7 +10,7 @@
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/types.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/signal.h>
#include <linux/perf_event.h>

diff --git a/arch/sh/mm/asids-debugfs.c b/arch/sh/mm/asids-debugfs.c
index bf95fdaedd0c..110bd35165bf 100644
--- a/arch/sh/mm/asids-debugfs.c
+++ b/arch/sh/mm/asids-debugfs.c
@@ -20,6 +20,8 @@
#include <linux/debugfs.h>
#include <linux/seq_file.h>
#include <linux/spinlock.h>
+#include <linux/sched/signal.h>
+
#include <asm/processor.h>
#include <asm/mmu_context.h>

diff --git a/arch/sh/mm/fault.c b/arch/sh/mm/fault.c
index 9bf876780cef..6fd1bf7481c7 100644
--- a/arch/sh/mm/fault.c
+++ b/arch/sh/mm/fault.c
@@ -13,6 +13,7 @@
*/
#include <linux/kernel.h>
#include <linux/mm.h>
+#include <linux/sched/signal.h>
#include <linux/hardirq.h>
#include <linux/kprobes.h>
#include <linux/perf_event.h>
diff --git a/arch/sparc/kernel/sys_sparc_32.c b/arch/sparc/kernel/sys_sparc_32.c
index fb7b185ee941..ae49639a484e 100644
--- a/arch/sparc/kernel/sys_sparc_32.c
+++ b/arch/sparc/kernel/sys_sparc_32.c
@@ -7,7 +7,7 @@

#include <linux/errno.h>
#include <linux/types.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/mm.h>
#include <linux/fs.h>
#include <linux/file.h>
diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
index 884c70331345..54d3999d8119 100644
--- a/arch/sparc/kernel/sys_sparc_64.c
+++ b/arch/sparc/kernel/sys_sparc_64.c
@@ -7,7 +7,7 @@

#include <linux/errno.h>
#include <linux/types.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/fs.h>
#include <linux/file.h>
#include <linux/mm.h>
diff --git a/arch/sparc/kernel/unaligned_32.c b/arch/sparc/kernel/unaligned_32.c
index d20d4e3fd129..8367dce5f41b 100644
--- a/arch/sparc/kernel/unaligned_32.c
+++ b/arch/sparc/kernel/unaligned_32.c
@@ -8,7 +8,7 @@

#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/mm.h>
#include <asm/ptrace.h>
#include <asm/processor.h>
diff --git a/arch/tile/mm/mmap.c b/arch/tile/mm/mmap.c
index ef61c597898b..377e312dc27e 100644
--- a/arch/tile/mm/mmap.c
+++ b/arch/tile/mm/mmap.c
@@ -17,7 +17,7 @@
#include <linux/mm.h>
#include <linux/random.h>
#include <linux/limits.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/mman.h>
#include <linux/compat.h>

diff --git a/arch/um/drivers/line.c b/arch/um/drivers/line.c
index 62087028a9ce..366e57f5e8d6 100644
--- a/arch/um/drivers/line.c
+++ b/arch/um/drivers/line.c
@@ -5,8 +5,9 @@

#include <linux/irqreturn.h>
#include <linux/kd.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/slab.h>
+
#include "chan.h"
#include <irq_kern.h>
#include <irq_user.h>
diff --git a/arch/um/kernel/reboot.c b/arch/um/kernel/reboot.c
index b60a9f8cda75..79218106a033 100644
--- a/arch/um/kernel/reboot.c
+++ b/arch/um/kernel/reboot.c
@@ -3,7 +3,7 @@
* Licensed under the GPL
*/

-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/spinlock.h>
#include <linux/slab.h>
#include <linux/oom.h>
diff --git a/arch/um/kernel/skas/mmu.c b/arch/um/kernel/skas/mmu.c
index 3943e9d7d13d..7a1f2a936fd1 100644
--- a/arch/um/kernel/skas/mmu.c
+++ b/arch/um/kernel/skas/mmu.c
@@ -5,8 +5,9 @@
*/

#include <linux/mm.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/slab.h>
+
#include <asm/pgalloc.h>
#include <asm/pgtable.h>
#include <asm/sections.h>
diff --git a/arch/um/kernel/tlb.c b/arch/um/kernel/tlb.c
index 3777b82759bd..37508b190106 100644
--- a/arch/um/kernel/tlb.c
+++ b/arch/um/kernel/tlb.c
@@ -5,7 +5,8 @@

#include <linux/mm.h>
#include <linux/module.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
+
#include <asm/pgtable.h>
#include <asm/tlbflush.h>
#include <as-layout.h>
diff --git a/arch/um/kernel/trap.c b/arch/um/kernel/trap.c
index ad8f206ab5e8..9711ae4aaa6a 100644
--- a/arch/um/kernel/trap.c
+++ b/arch/um/kernel/trap.c
@@ -4,7 +4,7 @@
*/

#include <linux/mm.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/hardirq.h>
#include <linux/module.h>
#include <linux/uaccess.h>
diff --git a/arch/unicore32/kernel/fpu-ucf64.c b/arch/unicore32/kernel/fpu-ucf64.c
index a53343a90ca2..12c8c9527b8e 100644
--- a/arch/unicore32/kernel/fpu-ucf64.c
+++ b/arch/unicore32/kernel/fpu-ucf64.c
@@ -13,7 +13,7 @@
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/signal.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/init.h>

#include <asm/fpu-ucf64.h>
diff --git a/arch/unicore32/kernel/traps.c b/arch/unicore32/kernel/traps.c
index c54e32410ead..7f5e06f9a202 100644
--- a/arch/unicore32/kernel/traps.c
+++ b/arch/unicore32/kernel/traps.c
@@ -14,6 +14,7 @@
*/
#include <linux/module.h>
#include <linux/signal.h>
+#include <linux/sched/signal.h>
#include <linux/spinlock.h>
#include <linux/personality.h>
#include <linux/kallsyms.h>
diff --git a/arch/unicore32/mm/fault.c b/arch/unicore32/mm/fault.c
index 6c7f70bcaae3..092d6c55949f 100644
--- a/arch/unicore32/mm/fault.c
+++ b/arch/unicore32/mm/fault.c
@@ -17,7 +17,7 @@
#include <linux/kprobes.h>
#include <linux/uaccess.h>
#include <linux/page-flags.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/io.h>

#include <asm/pgtable.h>
diff --git a/arch/x86/entry/vsyscall/vsyscall_64.c b/arch/x86/entry/vsyscall/vsyscall_64.c
index 636c4b341f36..df91fb393a01 100644
--- a/arch/x86/entry/vsyscall/vsyscall_64.c
+++ b/arch/x86/entry/vsyscall/vsyscall_64.c
@@ -27,6 +27,7 @@

#include <linux/kernel.h>
#include <linux/timer.h>
+#include <linux/sched/signal.h>
#include <linux/syscalls.h>
#include <linux/ratelimit.h>

diff --git a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
index 8af04afdfcb9..d48af18e7baf 100644
--- a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
+++ b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
@@ -25,7 +25,7 @@
#include <linux/sysfs.h>
#include <linux/kernfs.h>
#include <linux/seq_file.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/slab.h>
#include <linux/cpu.h>
#include <linux/task_work.h>
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 7012de4a1fed..d8d235be5d5f 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -36,6 +36,7 @@
#include <linux/compiler.h>
#include <linux/srcu.h>
#include <linux/slab.h>
+#include <linux/sched/signal.h>
#include <linux/uaccess.h>

#include <asm/page.h>
diff --git a/arch/x86/mm/mmap.c b/arch/x86/mm/mmap.c
index d2dc0438d654..5eabf34008f1 100644
--- a/arch/x86/mm/mmap.c
+++ b/arch/x86/mm/mmap.c
@@ -28,7 +28,7 @@
#include <linux/mm.h>
#include <linux/random.h>
#include <linux/limits.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <asm/elf.h>

struct va_alignment __read_mostly va_align = {
diff --git a/arch/xtensa/kernel/traps.c b/arch/xtensa/kernel/traps.c
index 282bf721a4d6..84abd66e680d 100644
--- a/arch/xtensa/kernel/traps.c
+++ b/arch/xtensa/kernel/traps.c
@@ -24,7 +24,7 @@
*/

#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/stringify.h>
diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index 6e259ad9131f..7e4e715e1f1a 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -31,7 +31,7 @@
#include <linux/poll.h>
#include <linux/debugfs.h>
#include <linux/rbtree.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/sched/mm.h>
#include <linux/seq_file.h>
#include <linux/uaccess.h>
diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index 4cb8f21ff4ef..724d1c50fc52 100644
--- a/drivers/block/drbd/drbd_int.h
+++ b/drivers/block/drbd/drbd_int.h
@@ -30,7 +30,7 @@
#include <linux/compiler.h>
#include <linux/types.h>
#include <linux/list.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/bitops.h>
#include <linux/slab.h>
#include <linux/ratelimit.h>
diff --git a/drivers/char/snsc_event.c b/drivers/char/snsc_event.c
index 59bcefd6ec7c..e452673dff66 100644
--- a/drivers/char/snsc_event.c
+++ b/drivers/char/snsc_event.c
@@ -16,7 +16,7 @@
*/

#include <linux/interrupt.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/slab.h>
#include <asm/byteorder.h>
#include <asm/sn/sn_sal.h>
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_events.c b/drivers/gpu/drm/amd/amdkfd/kfd_events.c
index a6a4b2b1c0d9..ea7409e686da 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_events.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_events.c
@@ -23,7 +23,7 @@
#include <linux/mm_types.h>
#include <linux/slab.h>
#include <linux/types.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/uaccess.h>
#include <linux/mm.h>
#include <linux/mman.h>
diff --git a/drivers/gpu/drm/drm_lock.c b/drivers/gpu/drm/drm_lock.c
index 32d43f86a8f2..96bb6badb818 100644
--- a/drivers/gpu/drm/drm_lock.c
+++ b/drivers/gpu/drm/drm_lock.c
@@ -34,6 +34,8 @@
*/

#include <linux/export.h>
+#include <linux/sched/signal.h>
+
#include <drm/drmP.h>
#include "drm_legacy.h"
#include "drm_internal.h"
diff --git a/drivers/gpu/drm/ttm/ttm_lock.c b/drivers/gpu/drm/ttm/ttm_lock.c
index f154fb1929bd..913f4318cdc0 100644
--- a/drivers/gpu/drm/ttm/ttm_lock.c
+++ b/drivers/gpu/drm/ttm/ttm_lock.c
@@ -33,7 +33,7 @@
#include <linux/atomic.h>
#include <linux/errno.h>
#include <linux/wait.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/module.h>

#define TTM_WRITE_LOCK_PENDING (1 << 0)
diff --git a/drivers/infiniband/core/umem.c b/drivers/infiniband/core/umem.c
index e30a27b16dc4..d419d25a1b63 100644
--- a/drivers/infiniband/core/umem.c
+++ b/drivers/infiniband/core/umem.c
@@ -34,7 +34,7 @@

#include <linux/mm.h>
#include <linux/dma-mapping.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/sched/mm.h>
#include <linux/export.h>
#include <linux/hugetlb.h>
diff --git a/drivers/infiniband/hw/hfi1/user_pages.c b/drivers/infiniband/hw/hfi1/user_pages.c
index 20f4ddcac3b0..68295a12b771 100644
--- a/drivers/infiniband/hw/hfi1/user_pages.c
+++ b/drivers/infiniband/hw/hfi1/user_pages.c
@@ -46,7 +46,7 @@
*/

#include <linux/mm.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/device.h>
#include <linux/module.h>

diff --git a/drivers/infiniband/hw/qib/qib_user_pages.c b/drivers/infiniband/hw/qib/qib_user_pages.c
index 75f08624ac05..ce83ba9a12ef 100644
--- a/drivers/infiniband/hw/qib/qib_user_pages.c
+++ b/drivers/infiniband/hw/qib/qib_user_pages.c
@@ -32,6 +32,7 @@
*/

#include <linux/mm.h>
+#include <linux/sched/signal.h>
#include <linux/device.h>

#include "qib.h"
diff --git a/drivers/infiniband/hw/usnic/usnic_uiom.c b/drivers/infiniband/hw/usnic/usnic_uiom.c
index ba868be5af2e..c49db7c33979 100644
--- a/drivers/infiniband/hw/usnic/usnic_uiom.c
+++ b/drivers/infiniband/hw/usnic/usnic_uiom.c
@@ -34,7 +34,7 @@

#include <linux/mm.h>
#include <linux/dma-mapping.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/sched/mm.h>
#include <linux/hugetlb.h>
#include <linux/iommu.h>
diff --git a/drivers/isdn/i4l/isdn_tty.c b/drivers/isdn/i4l/isdn_tty.c
index 63eaa0a9f8a1..1b169559a240 100644
--- a/drivers/isdn/i4l/isdn_tty.c
+++ b/drivers/isdn/i4l/isdn_tty.c
@@ -15,6 +15,7 @@
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/mutex.h>
+#include <linux/sched/signal.h>
#include "isdn_common.h"
#include "isdn_tty.h"
#ifdef CONFIG_ISDN_AUDIO
diff --git a/drivers/isdn/mISDN/l1oip_core.c b/drivers/isdn/mISDN/l1oip_core.c
index 67c21876c35f..6ceca7db62ad 100644
--- a/drivers/isdn/mISDN/l1oip_core.c
+++ b/drivers/isdn/mISDN/l1oip_core.c
@@ -234,6 +234,8 @@
#include <linux/workqueue.h>
#include <linux/kthread.h>
#include <linux/slab.h>
+#include <linux/sched/signal.h>
+
#include <net/sock.h>
#include "core.h"
#include "l1oip.h"
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 01175dac0db6..a966fd0b9937 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -44,6 +44,7 @@

*/

+#include <linux/sched/signal.h>
#include <linux/kthread.h>
#include <linux/blkdev.h>
#include <linux/badblocks.h>
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 7b0f647bcccb..48eecc4b3f93 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -37,7 +37,10 @@
#include <linux/module.h>
#include <linux/seq_file.h>
#include <linux/ratelimit.h>
+#include <linux/sched/signal.h>
+
#include <trace/events/block.h>
+
#include "md.h"
#include "raid1.h"
#include "bitmap.h"
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 3c7e106c12a2..7cd959565c0b 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -55,6 +55,8 @@
#include <linux/ratelimit.h>
#include <linux/nodemask.h>
#include <linux/flex_array.h>
+#include <linux/sched/signal.h>
+
#include <trace/events/block.h>

#include "md.h"
diff --git a/drivers/misc/genwqe/card_dev.c b/drivers/misc/genwqe/card_dev.c
index cb290b8ca0c8..dd4617764f14 100644
--- a/drivers/misc/genwqe/card_dev.c
+++ b/drivers/misc/genwqe/card_dev.c
@@ -29,7 +29,7 @@
#include <linux/pci.h>
#include <linux/string.h>
#include <linux/fs.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/wait.h>
#include <linux/delay.h>
#include <linux/atomic.h>
diff --git a/drivers/misc/mic/cosm/cosm_scif_server.c b/drivers/misc/mic/cosm/cosm_scif_server.c
index 5696df4326b5..85f7d09cc65f 100644
--- a/drivers/misc/mic/cosm/cosm_scif_server.c
+++ b/drivers/misc/mic/cosm/cosm_scif_server.c
@@ -19,6 +19,8 @@
*
*/
#include <linux/kthread.h>
+#include <linux/sched/signal.h>
+
#include "cosm_main.h"

/*
diff --git a/drivers/misc/mic/cosm_client/cosm_scif_client.c b/drivers/misc/mic/cosm_client/cosm_scif_client.c
index 03e98bf1ac15..aa530fcceaa9 100644
--- a/drivers/misc/mic/cosm_client/cosm_scif_client.c
+++ b/drivers/misc/mic/cosm_client/cosm_scif_client.c
@@ -22,6 +22,8 @@
#include <linux/delay.h>
#include <linux/reboot.h>
#include <linux/kthread.h>
+#include <linux/sched/signal.h>
+
#include "../cosm/cosm_main.h"

#define COSM_SCIF_MAX_RETRIES 10
diff --git a/drivers/misc/mic/scif/scif_rma.c b/drivers/misc/mic/scif/scif_rma.c
index d0e9c60f944e..329727e00e97 100644
--- a/drivers/misc/mic/scif/scif_rma.c
+++ b/drivers/misc/mic/scif/scif_rma.c
@@ -18,6 +18,7 @@
#include <linux/dma_remapping.h>
#include <linux/pagemap.h>
#include <linux/sched/mm.h>
+#include <linux/sched/signal.h>

#include "scif_main.h"
#include "scif_map.h"
diff --git a/drivers/net/slip/slip.c b/drivers/net/slip/slip.c
index 9841f3dc0682..0bbb74e7a916 100644
--- a/drivers/net/slip/slip.c
+++ b/drivers/net/slip/slip.c
@@ -66,7 +66,7 @@

#include <linux/uaccess.h>
#include <linux/bitops.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/interrupt.h>
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
index dfb0658713d9..85e0cf45d7fb 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
@@ -22,7 +22,7 @@
#include <linux/pci_ids.h>
#include <linux/netdevice.h>
#include <linux/interrupt.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/mmc/sdio.h>
#include <linux/mmc/sdio_ids.h>
#include <linux/mmc/sdio_func.h>
diff --git a/drivers/parisc/power.c b/drivers/parisc/power.c
index ef31b77404ef..e2a3112f1c98 100644
--- a/drivers/parisc/power.c
+++ b/drivers/parisc/power.c
@@ -39,7 +39,7 @@
#include <linux/kernel.h>
#include <linux/notifier.h>
#include <linux/reboot.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/kthread.h>
#include <linux/pm.h>

diff --git a/drivers/ps3/ps3-sys-manager.c b/drivers/ps3/ps3-sys-manager.c
index f2ab435954f6..73e496a72113 100644
--- a/drivers/ps3/ps3-sys-manager.c
+++ b/drivers/ps3/ps3-sys-manager.c
@@ -22,6 +22,7 @@
#include <linux/module.h>
#include <linux/workqueue.h>
#include <linux/reboot.h>
+#include <linux/sched/signal.h>

#include <asm/firmware.h>
#include <asm/lv1call.h>
diff --git a/drivers/s390/char/fs3270.c b/drivers/s390/char/fs3270.c
index 85eca1cef063..c4518168fd02 100644
--- a/drivers/s390/char/fs3270.c
+++ b/drivers/s390/char/fs3270.c
@@ -12,6 +12,7 @@
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/compat.h>
+#include <linux/sched/signal.h>
#include <linux/module.h>
#include <linux/list.h>
#include <linux/slab.h>
diff --git a/drivers/s390/char/keyboard.c b/drivers/s390/char/keyboard.c
index 82c913318b73..ba0e4f93503d 100644
--- a/drivers/s390/char/keyboard.c
+++ b/drivers/s390/char/keyboard.c
@@ -7,7 +7,7 @@
*/

#include <linux/module.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/slab.h>
#include <linux/sysrq.h>

diff --git a/drivers/scsi/bnx2fc/bnx2fc.h b/drivers/scsi/bnx2fc/bnx2fc.h
index fdd4eb4e41b2..4fc8ed5fe067 100644
--- a/drivers/scsi/bnx2fc/bnx2fc.h
+++ b/drivers/scsi/bnx2fc/bnx2fc.h
@@ -39,7 +39,7 @@
#include <linux/bitops.h>
#include <linux/log2.h>
#include <linux/interrupt.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/io.h>

#include <scsi/scsi.h>
diff --git a/drivers/scsi/bnx2i/bnx2i.h b/drivers/scsi/bnx2i/bnx2i.h
index ed7f3228e234..89ef1a1678d1 100644
--- a/drivers/scsi/bnx2i/bnx2i.h
+++ b/drivers/scsi/bnx2i/bnx2i.h
@@ -25,7 +25,7 @@
#include <linux/spinlock.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/in.h>
#include <linux/kfifo.h>
#include <linux/netdevice.h>
diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index f9b6fba689ff..73ba3649d8a0 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -26,6 +26,7 @@
#include <linux/delay.h>
#include <linux/log2.h>
#include <linux/slab.h>
+#include <linux/sched/signal.h>
#include <linux/module.h>
#include <asm/unaligned.h>
#include <net/tcp.h>
diff --git a/drivers/staging/android/lowmemorykiller.c b/drivers/staging/android/lowmemorykiller.c
index ec3b66561412..054660049395 100644
--- a/drivers/staging/android/lowmemorykiller.c
+++ b/drivers/staging/android/lowmemorykiller.c
@@ -37,7 +37,7 @@
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/oom.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/swap.h>
#include <linux/rcupdate.h>
#include <linux/profile.h>
diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-prim.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-prim.c
index cf902154f0aa..bcf9f3dd0310 100644
--- a/drivers/staging/lustre/lnet/libcfs/linux/linux-prim.c
+++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-prim.c
@@ -34,7 +34,7 @@
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/fs_struct.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>

#include "../../../include/linux/libcfs/libcfs.h"

diff --git a/drivers/staging/rtl8188eu/include/osdep_service.h b/drivers/staging/rtl8188eu/include/osdep_service.h
index 9047b6dec9ed..3055dcf0f039 100644
--- a/drivers/staging/rtl8188eu/include/osdep_service.h
+++ b/drivers/staging/rtl8188eu/include/osdep_service.h
@@ -37,7 +37,7 @@
#include <linux/io.h>
#include <linux/mutex.h>
#include <linux/sem.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/etherdevice.h>
#include <linux/wireless.h>
#include <net/iw_handler.h>
diff --git a/drivers/staging/rtl8712/osdep_service.h b/drivers/staging/rtl8712/osdep_service.h
index b8a170978434..5d33020554cd 100644
--- a/drivers/staging/rtl8712/osdep_service.h
+++ b/drivers/staging/rtl8712/osdep_service.h
@@ -33,7 +33,7 @@

#include <linux/interrupt.h>
#include <linux/semaphore.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/sem.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
diff --git a/drivers/staging/rtl8712/rtl8712_cmd.c b/drivers/staging/rtl8712/rtl8712_cmd.c
index 9f61583af150..0781002ffbb8 100644
--- a/drivers/staging/rtl8712/rtl8712_cmd.c
+++ b/drivers/staging/rtl8712/rtl8712_cmd.c
@@ -32,6 +32,7 @@
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/slab.h>
+#include <linux/sched/signal.h>
#include <linux/module.h>
#include <linux/kref.h>
#include <linux/netdevice.h>
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
index 0d987898b4f8..a89600b2a4ab 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
@@ -34,6 +34,7 @@

#include <linux/kernel.h>
#include <linux/module.h>
+#include <linux/sched/signal.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/cdev.h>
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_util.h b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_util.h
index 4055d4bf9f74..e63964f5a18a 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_util.h
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_util.h
@@ -47,7 +47,7 @@
#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/random.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/ctype.h>
#include <linux/uaccess.h>
#include <linux/time.h> /* for time_t */
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index da2c73a255de..fa1d578d56bd 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -24,6 +24,7 @@
#include <linux/vmalloc.h>
#include <linux/idr.h>
#include <linux/delay.h>
+#include <linux/sched/signal.h>
#include <asm/unaligned.h>
#include <net/ipv6.h>
#include <scsi/scsi_proto.h>
diff --git a/drivers/target/iscsi/iscsi_target_erl0.c b/drivers/target/iscsi/iscsi_target_erl0.c
index b54e72c7ab0f..a4d5e6749932 100644
--- a/drivers/target/iscsi/iscsi_target_erl0.c
+++ b/drivers/target/iscsi/iscsi_target_erl0.c
@@ -17,6 +17,8 @@
* GNU General Public License for more details.
******************************************************************************/

+#include <linux/sched/signal.h>
+
#include <scsi/iscsi_proto.h>
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
diff --git a/drivers/target/iscsi/iscsi_target_login.c b/drivers/target/iscsi/iscsi_target_login.c
index 450f51deb2a2..f2ca739d4dcb 100644
--- a/drivers/target/iscsi/iscsi_target_login.c
+++ b/drivers/target/iscsi/iscsi_target_login.c
@@ -19,6 +19,7 @@
#include <crypto/hash.h>
#include <linux/string.h>
#include <linux/kthread.h>
+#include <linux/sched/signal.h>
#include <linux/idr.h>
#include <linux/tcp.h> /* TCP_NODELAY */
#include <net/ipv6.h> /* ipv6_addr_v4mapped() */
diff --git a/drivers/target/iscsi/iscsi_target_nego.c b/drivers/target/iscsi/iscsi_target_nego.c
index 46388c9e08da..29eb09e0cd15 100644
--- a/drivers/target/iscsi/iscsi_target_nego.c
+++ b/drivers/target/iscsi/iscsi_target_nego.c
@@ -19,6 +19,7 @@
#include <linux/ctype.h>
#include <linux/kthread.h>
#include <linux/slab.h>
+#include <linux/sched/signal.h>
#include <net/sock.h>
#include <scsi/iscsi_proto.h>
#include <target/target_core_base.h>
diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c
index a23fa5ed1d67..66b59a15780d 100644
--- a/drivers/tty/pty.c
+++ b/drivers/tty/pty.c
@@ -12,7 +12,7 @@
#include <linux/tty.h>
#include <linux/tty_flip.h>
#include <linux/fcntl.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/string.h>
#include <linux/major.h>
#include <linux/mm.h>
diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c
index 701c085bb19b..41368ffab6ae 100644
--- a/drivers/tty/sysrq.c
+++ b/drivers/tty/sysrq.c
@@ -14,7 +14,7 @@

#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/sched/rt.h>
#include <linux/interrupt.h>
#include <linux/mm.h>
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index 734a635e7363..05c97f8ff2ed 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -69,7 +69,7 @@
#include <linux/errno.h>
#include <linux/signal.h>
#include <linux/fcntl.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/interrupt.h>
#include <linux/tty.h>
#include <linux/tty_driver.h>
diff --git a/drivers/tty/vt/keyboard.c b/drivers/tty/vt/keyboard.c
index 3dd6a491cdba..71391e672588 100644
--- a/drivers/tty/vt/keyboard.c
+++ b/drivers/tty/vt/keyboard.c
@@ -26,7 +26,7 @@

#include <linux/consolemap.h>
#include <linux/module.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/tty.h>
#include <linux/tty_flip.h>
#include <linux/mm.h>
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 4c10a9df3b91..98c09b3c5e29 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -72,7 +72,7 @@

#include <linux/module.h>
#include <linux/types.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/tty.h>
#include <linux/tty_flip.h>
#include <linux/kernel.h>
diff --git a/drivers/tty/vt/vt_ioctl.c b/drivers/tty/vt/vt_ioctl.c
index a56edf2d58eb..0cbfe1ff6f6c 100644
--- a/drivers/tty/vt/vt_ioctl.c
+++ b/drivers/tty/vt/vt_ioctl.c
@@ -10,7 +10,7 @@

#include <linux/types.h>
#include <linux/errno.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/tty.h>
#include <linux/timer.h>
#include <linux/kernel.h>
diff --git a/drivers/usb/atm/usbatm.c b/drivers/usb/atm/usbatm.c
index 5a59da0dc98a..3e80aa3b917a 100644
--- a/drivers/usb/atm/usbatm.c
+++ b/drivers/usb/atm/usbatm.c
@@ -74,7 +74,7 @@
#include <linux/moduleparam.h>
#include <linux/netdevice.h>
#include <linux/proc_fs.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/signal.h>
#include <linux/slab.h>
#include <linux/stat.h>
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index 4016dae7433b..6c4f74aef090 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -36,6 +36,7 @@

#include <linux/fs.h>
#include <linux/mm.h>
+#include <linux/sched/signal.h>
#include <linux/slab.h>
#include <linux/signal.h>
#include <linux/poll.h>
diff --git a/drivers/usb/gadget/function/f_mass_storage.c b/drivers/usb/gadget/function/f_mass_storage.c
index 8f3659b65f53..4c8aacc232c0 100644
--- a/drivers/usb/gadget/function/f_mass_storage.c
+++ b/drivers/usb/gadget/function/f_mass_storage.c
@@ -207,6 +207,7 @@
#include <linux/fs.h>
#include <linux/kref.h>
#include <linux/kthread.h>
+#include <linux/sched/signal.h>
#include <linux/limits.h>
#include <linux/rwsem.h>
#include <linux/slab.h>
diff --git a/drivers/vfio/vfio_iommu_spapr_tce.c b/drivers/vfio/vfio_iommu_spapr_tce.c
index 65f025d79ee3..456a435aa8f7 100644
--- a/drivers/vfio/vfio_iommu_spapr_tce.c
+++ b/drivers/vfio/vfio_iommu_spapr_tce.c
@@ -21,6 +21,7 @@
#include <linux/vfio.h>
#include <linux/vmalloc.h>
#include <linux/sched/mm.h>
+#include <linux/sched/signal.h>

#include <asm/iommu.h>
#include <asm/tce.h>
diff --git a/drivers/vfio/vfio_iommu_type1.c b/drivers/vfio/vfio_iommu_type1.c
index 70ea7e3c40e5..2357aacba944 100644
--- a/drivers/vfio/vfio_iommu_type1.c
+++ b/drivers/vfio/vfio_iommu_type1.c
@@ -31,7 +31,7 @@
#include <linux/module.h>
#include <linux/mm.h>
#include <linux/rbtree.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/sched/mm.h>
#include <linux/slab.h>
#include <linux/uaccess.h>
diff --git a/drivers/w1/w1_family.c b/drivers/w1/w1_family.c
index 1dc3051f7d76..892e60e8cf44 100644
--- a/drivers/w1/w1_family.c
+++ b/drivers/w1/w1_family.c
@@ -21,7 +21,7 @@

#include <linux/spinlock.h>
#include <linux/list.h>
-#include <linux/sched.h> /* schedule_timeout() */
+#include <linux/sched/signal.h>
#include <linux/delay.h>
#include <linux/export.h>

diff --git a/drivers/w1/w1_int.c b/drivers/w1/w1_int.c
index 20f766afa4c7..a23a41eb8683 100644
--- a/drivers/w1/w1_int.c
+++ b/drivers/w1/w1_int.c
@@ -24,6 +24,7 @@
#include <linux/delay.h>
#include <linux/kthread.h>
#include <linux/slab.h>
+#include <linux/sched/signal.h>
#include <linux/export.h>
#include <linux/moduleparam.h>

diff --git a/fs/attr.c b/fs/attr.c
index c902b3d53508..135304146120 100644
--- a/fs/attr.c
+++ b/fs/attr.c
@@ -9,6 +9,7 @@
#include <linux/time.h>
#include <linux/mm.h>
#include <linux/string.h>
+#include <linux/sched/signal.h>
#include <linux/capability.h>
#include <linux/fsnotify.h>
#include <linux/fcntl.h>
diff --git a/fs/autofs4/waitq.c b/fs/autofs4/waitq.c
index 1278335ce366..65febf055759 100644
--- a/fs/autofs4/waitq.c
+++ b/fs/autofs4/waitq.c
@@ -10,6 +10,7 @@
#include <linux/slab.h>
#include <linux/time.h>
#include <linux/signal.h>
+#include <linux/sched/signal.h>
#include <linux/file.h>
#include "autofs_i.h"

diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 35ae49ed1f76..19eb2dac2efe 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -21,6 +21,7 @@
#include <linux/fs.h>
#include <linux/net.h>
#include <linux/string.h>
+#include <linux/sched/signal.h>
#include <linux/list.h>
#include <linux/wait.h>
#include <linux/slab.h>
diff --git a/fs/coda/upcall.c b/fs/coda/upcall.c
index f6c6c8adbc01..e82357c89979 100644
--- a/fs/coda/upcall.c
+++ b/fs/coda/upcall.c
@@ -15,7 +15,7 @@
*/

#include <linux/signal.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/mm.h>
diff --git a/fs/coredump.c b/fs/coredump.c
index 23a539b29225..c74ab43b8383 100644
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -17,6 +17,7 @@
#include <linux/binfmts.h>
#include <linux/coredump.h>
#include <linux/sched/coredump.h>
+#include <linux/sched/signal.h>
#include <linux/utsname.h>
#include <linux/pid_namespace.h>
#include <linux/module.h>
@@ -34,7 +35,6 @@
#include <linux/pipe_fs_i.h>
#include <linux/oom.h>
#include <linux/compat.h>
-#include <linux/sched.h>
#include <linux/fs.h>
#include <linux/path.h>
#include <linux/timekeeping.h>
diff --git a/fs/exec.c b/fs/exec.c
index 1be960ef29f5..b8ed0c542692 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -34,6 +34,7 @@
#include <linux/init.h>
#include <linux/sched/mm.h>
#include <linux/sched/coredump.h>
+#include <linux/sched/signal.h>
#include <linux/pagemap.h>
#include <linux/perf_event.h>
#include <linux/highmem.h>
diff --git a/fs/file.c b/fs/file.c
index 69d6990e3021..ad6f094f2eff 100644
--- a/fs/file.c
+++ b/fs/file.c
@@ -12,7 +12,7 @@
#include <linux/mm.h>
#include <linux/mmzone.h>
#include <linux/time.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/file.h>
diff --git a/fs/fs_struct.c b/fs/fs_struct.c
index 7dca743b2ce1..543ed50f0387 100644
--- a/fs/fs_struct.c
+++ b/fs/fs_struct.c
@@ -1,5 +1,5 @@
#include <linux/export.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/fs.h>
#include <linux/path.h>
#include <linux/slab.h>
diff --git a/fs/jffs2/background.c b/fs/jffs2/background.c
index e5c1783ab64a..453a6a1fff34 100644
--- a/fs/jffs2/background.c
+++ b/fs/jffs2/background.c
@@ -16,7 +16,7 @@
#include <linux/jffs2.h>
#include <linux/mtd/mtd.h>
#include <linux/completion.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/freezer.h>
#include <linux/kthread.h>
#include "nodelist.h"
diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
index 1c13dd80744f..725ba78ea398 100644
--- a/fs/lockd/svc.c
+++ b/fs/lockd/svc.c
@@ -17,7 +17,7 @@
#include <linux/sysctl.h>
#include <linux/moduleparam.h>

-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/errno.h>
#include <linux/in.h>
#include <linux/uio.h>
diff --git a/fs/ncpfs/inode.c b/fs/ncpfs/inode.c
index 7eb89c23c847..d5606099712a 100644
--- a/fs/ncpfs/inode.c
+++ b/fs/ncpfs/inode.c
@@ -30,6 +30,7 @@
#include <linux/vfs.h>
#include <linux/mount.h>
#include <linux/seq_file.h>
+#include <linux/sched/signal.h>
#include <linux/namei.h>

#include <net/sock.h>
diff --git a/fs/ncpfs/sock.c b/fs/ncpfs/sock.c
index f32f272ee501..8651899cc87f 100644
--- a/fs/ncpfs/sock.c
+++ b/fs/ncpfs/sock.c
@@ -16,6 +16,7 @@
#include <linux/fcntl.h>
#include <linux/stat.h>
#include <linux/string.h>
+#include <linux/sched/signal.h>
#include <linux/uaccess.h>
#include <linux/in.h>
#include <linux/net.h>
diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
index 484bebc20bca..bb79972dc638 100644
--- a/fs/nfs/callback.c
+++ b/fs/nfs/callback.c
@@ -9,6 +9,7 @@
#include <linux/completion.h>
#include <linux/ip.h>
#include <linux/module.h>
+#include <linux/sched/signal.h>
#include <linux/sunrpc/svc.h>
#include <linux/sunrpc/svcsock.h>
#include <linux/nfs_fs.h>
diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
index e6bfd96734c0..793f521b7db3 100644
--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -6,7 +6,7 @@
* Copyright (C) 1995, 1996, 1997 Olaf Kirch <okir@xxxxxxxxxxxx>
*/

-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/freezer.h>
#include <linux/module.h>
#include <linux/fs_struct.h>
diff --git a/fs/proc/fd.c b/fs/proc/fd.c
index 4274f83bf100..1f22d13602f6 100644
--- a/fs/proc/fd.c
+++ b/fs/proc/fd.c
@@ -1,4 +1,4 @@
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/errno.h>
#include <linux/dcache.h>
#include <linux/path.h>
diff --git a/fs/select.c b/fs/select.c
index 305c0daf5d67..e2112270d75a 100644
--- a/fs/select.c
+++ b/fs/select.c
@@ -15,7 +15,8 @@
*/

#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
+#include <linux/sched/rt.h>
#include <linux/syscalls.h>
#include <linux/export.h>
#include <linux/slab.h>
@@ -26,7 +27,6 @@
#include <linux/fs.h>
#include <linux/rcupdate.h>
#include <linux/hrtimer.h>
-#include <linux/sched/rt.h>
#include <linux/freezer.h>
#include <net/busy_poll.h>
#include <linux/vmalloc.h>
diff --git a/include/linux/oom.h b/include/linux/oom.h
index b4e36e92bc87..8a266e2be5a6 100644
--- a/include/linux/oom.h
+++ b/include/linux/oom.h
@@ -2,7 +2,7 @@
#define __INCLUDE_LINUX_OOM_H

-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/types.h>
#include <linux/nodemask.h>
#include <uapi/linux/oom.h>
diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h
index e0e539321ab9..422bc2e4cb6a 100644
--- a/include/linux/ptrace.h
+++ b/include/linux/ptrace.h
@@ -3,6 +3,7 @@

#include <linux/compiler.h> /* For unlikely. */
#include <linux/sched.h> /* For struct task_struct. */
+#include <linux/sched/signal.h> /* For send_sig(), same_thread_group(), etc. */
#include <linux/err.h> /* for IS_ERR_VALUE */
#include <linux/bug.h> /* For BUG_ON. */
#include <linux/pid_namespace.h> /* For task_active_pid_ns. */
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 301524b91596..9e05f9ed7c83 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -68,6 +68,9 @@ struct blk_plug;
struct filename;
struct nameidata;

+struct signal_struct;
+struct sighand_struct;
+
#define VMACACHE_BITS 2
#define VMACACHE_SIZE (1U << VMACACHE_BITS)
#define VMACACHE_MASK (VMACACHE_SIZE - 1)
@@ -365,13 +368,6 @@ arch_get_unmapped_area_topdown(struct file *filp, unsigned long addr,
static inline void arch_pick_mmap_layout(struct mm_struct *mm) {}
#endif

-struct sighand_struct {
- atomic_t count;
- struct k_sigaction action[_NSIG];
- spinlock_t siglock;
- wait_queue_head_t signalfd_wqh;
-};
-
struct pacct_struct {
int ac_flag;
long ac_exitcode;
@@ -490,195 +486,6 @@ struct thread_group_cputimer {
struct autogroup;

/*
- * NOTE! "signal_struct" does not have its own
- * locking, because a shared signal_struct always
- * implies a shared sighand_struct, so locking
- * sighand_struct is always a proper superset of
- * the locking of signal_struct.
- */
-struct signal_struct {
- atomic_t sigcnt;
- atomic_t live;
- int nr_threads;
- struct list_head thread_head;
-
- wait_queue_head_t wait_chldexit; /* for wait4() */
-
- /* current thread group signal load-balancing target: */
- struct task_struct *curr_target;
-
- /* shared signal handling: */
- struct sigpending shared_pending;
-
- /* thread group exit support */
- int group_exit_code;
- /* overloaded:
- * - notify group_exit_task when ->count is equal to notify_count
- * - everyone except group_exit_task is stopped during signal delivery
- * of fatal signals, group_exit_task processes the signal.
- */
- int notify_count;
- struct task_struct *group_exit_task;
-
- /* thread group stop support, overloads group_exit_code too */
- int group_stop_count;
- unsigned int flags; /* see SIGNAL_* flags below */
-
- /*
- * PR_SET_CHILD_SUBREAPER marks a process, like a service
- * manager, to re-parent orphan (double-forking) child processes
- * to this process instead of 'init'. The service manager is
- * able to receive SIGCHLD signals and is able to investigate
- * the process until it calls wait(). All children of this
- * process will inherit a flag if they should look for a
- * child_subreaper process at exit.
- */
- unsigned int is_child_subreaper:1;
- unsigned int has_child_subreaper:1;
-
-#ifdef CONFIG_POSIX_TIMERS
-
- /* POSIX.1b Interval Timers */
- int posix_timer_id;
- struct list_head posix_timers;
-
- /* ITIMER_REAL timer for the process */
- struct hrtimer real_timer;
- ktime_t it_real_incr;
-
- /*
- * ITIMER_PROF and ITIMER_VIRTUAL timers for the process, we use
- * CPUCLOCK_PROF and CPUCLOCK_VIRT for indexing array as these
- * values are defined to 0 and 1 respectively
- */
- struct cpu_itimer it[2];
-
- /*
- * Thread group totals for process CPU timers.
- * See thread_group_cputimer(), et al, for details.
- */
- struct thread_group_cputimer cputimer;
-
- /* Earliest-expiration cache. */
- struct task_cputime cputime_expires;
-
- struct list_head cpu_timers[3];
-
-#endif
-
- struct pid *leader_pid;
-
-#ifdef CONFIG_NO_HZ_FULL
- atomic_t tick_dep_mask;
-#endif
-
- struct pid *tty_old_pgrp;
-
- /* boolean value for session group leader */
- int leader;
-
- struct tty_struct *tty; /* NULL if no tty */
-
-#ifdef CONFIG_SCHED_AUTOGROUP
- struct autogroup *autogroup;
-#endif
- /*
- * Cumulative resource counters for dead threads in the group,
- * and for reaped dead child processes forked by this group.
- * Live threads maintain their own counters and add to these
- * in __exit_signal, except for the group leader.
- */
- seqlock_t stats_lock;
- u64 utime, stime, cutime, cstime;
- u64 gtime;
- u64 cgtime;
- struct prev_cputime prev_cputime;
- unsigned long nvcsw, nivcsw, cnvcsw, cnivcsw;
- unsigned long min_flt, maj_flt, cmin_flt, cmaj_flt;
- unsigned long inblock, oublock, cinblock, coublock;
- unsigned long maxrss, cmaxrss;
- struct task_io_accounting ioac;
-
- /*
- * Cumulative ns of schedule CPU time fo dead threads in the
- * group, not including a zombie group leader, (This only differs
- * from jiffies_to_ns(utime + stime) if sched_clock uses something
- * other than jiffies.)
- */
- unsigned long long sum_sched_runtime;
-
- /*
- * We don't bother to synchronize most readers of this at all,
- * because there is no reader checking a limit that actually needs
- * to get both rlim_cur and rlim_max atomically, and either one
- * alone is a single word that can safely be read normally.
- * getrlimit/setrlimit use task_lock(current->group_leader) to
- * protect this instead of the siglock, because they really
- * have no need to disable irqs.
- */
- struct rlimit rlim[RLIM_NLIMITS];
-
-#ifdef CONFIG_BSD_PROCESS_ACCT
- struct pacct_struct pacct; /* per-process accounting information */
-#endif
-#ifdef CONFIG_TASKSTATS
- struct taskstats *stats;
-#endif
-#ifdef CONFIG_AUDIT
- unsigned audit_tty;
- struct tty_audit_buf *tty_audit_buf;
-#endif
-
- /*
- * Thread is the potential origin of an oom condition; kill first on
- * oom
- */
- bool oom_flag_origin;
- short oom_score_adj; /* OOM kill score adjustment */
- short oom_score_adj_min; /* OOM kill score adjustment min value.
- * Only settable by CAP_SYS_RESOURCE. */
- struct mm_struct *oom_mm; /* recorded mm when the thread group got
- * killed by the oom killer */
-
- struct mutex cred_guard_mutex; /* guard against foreign influences on
- * credential calculations
- * (notably. ptrace) */
-};
-
-/*
- * Bits in flags field of signal_struct.
- */
-#define SIGNAL_STOP_STOPPED 0x00000001 /* job control stop in effect */
-#define SIGNAL_STOP_CONTINUED 0x00000002 /* SIGCONT since WCONTINUED reap */
-#define SIGNAL_GROUP_EXIT 0x00000004 /* group exit in progress */
-#define SIGNAL_GROUP_COREDUMP 0x00000008 /* coredump in progress */
-/*
- * Pending notifications to parent.
- */
-#define SIGNAL_CLD_STOPPED 0x00000010
-#define SIGNAL_CLD_CONTINUED 0x00000020
-#define SIGNAL_CLD_MASK (SIGNAL_CLD_STOPPED|SIGNAL_CLD_CONTINUED)
-
-#define SIGNAL_UNKILLABLE 0x00000040 /* for init: ignore fatal signals */
-
-#define SIGNAL_STOP_MASK (SIGNAL_CLD_MASK | SIGNAL_STOP_STOPPED | \
- SIGNAL_STOP_CONTINUED)
-
-static inline void signal_set_stop_flags(struct signal_struct *sig,
- unsigned int flags)
-{
- WARN_ON(sig->flags & (SIGNAL_GROUP_EXIT|SIGNAL_GROUP_COREDUMP));
- sig->flags = (sig->flags & ~SIGNAL_STOP_MASK) | flags;
-}
-
-/* If true, all threads except ->group_exit_task have pending SIGKILL */
-static inline int signal_group_exit(const struct signal_struct *sig)
-{
- return (sig->flags & SIGNAL_GROUP_EXIT) ||
- (sig->group_exit_task != NULL);
-}
-
-/*
* Some day this will be a full-fledged user tracking system..
*/
struct user_struct {
@@ -2135,190 +1942,8 @@ extern int sched_fork(unsigned long clone_flags, struct task_struct *p);
extern void sched_dead(struct task_struct *p);

extern void proc_caches_init(void);
-extern void flush_signals(struct task_struct *);
-extern void ignore_signals(struct task_struct *);
-extern void flush_signal_handlers(struct task_struct *, int force_default);
-extern int dequeue_signal(struct task_struct *tsk, sigset_t *mask, siginfo_t *info);
-
-static inline int kernel_dequeue_signal(siginfo_t *info)
-{
- struct task_struct *tsk = current;
- siginfo_t __info;
- int ret;
-
- spin_lock_irq(&tsk->sighand->siglock);
- ret = dequeue_signal(tsk, &tsk->blocked, info ?: &__info);
- spin_unlock_irq(&tsk->sighand->siglock);
-
- return ret;
-}
-
-static inline void kernel_signal_stop(void)
-{
- spin_lock_irq(&current->sighand->siglock);
- if (current->jobctl & JOBCTL_STOP_DEQUEUED)
- __set_current_state(TASK_STOPPED);
- spin_unlock_irq(&current->sighand->siglock);
-
- schedule();
-}

extern void release_task(struct task_struct * p);
-extern int send_sig_info(int, struct siginfo *, struct task_struct *);
-extern int force_sigsegv(int, struct task_struct *);
-extern int force_sig_info(int, struct siginfo *, struct task_struct *);
-extern int __kill_pgrp_info(int sig, struct siginfo *info, struct pid *pgrp);
-extern int kill_pid_info(int sig, struct siginfo *info, struct pid *pid);
-extern int kill_pid_info_as_cred(int, struct siginfo *, struct pid *,
- const struct cred *, u32);
-extern int kill_pgrp(struct pid *pid, int sig, int priv);
-extern int kill_pid(struct pid *pid, int sig, int priv);
-extern int kill_proc_info(int, struct siginfo *, pid_t);
-extern __must_check bool do_notify_parent(struct task_struct *, int);
-extern void __wake_up_parent(struct task_struct *p, struct task_struct *parent);
-extern void force_sig(int, struct task_struct *);
-extern int send_sig(int, struct task_struct *, int);
-extern int zap_other_threads(struct task_struct *p);
-extern struct sigqueue *sigqueue_alloc(void);
-extern void sigqueue_free(struct sigqueue *);
-extern int send_sigqueue(struct sigqueue *, struct task_struct *, int group);
-extern int do_sigaction(int, struct k_sigaction *, struct k_sigaction *);
-
-#ifdef TIF_RESTORE_SIGMASK
-/*
- * Legacy restore_sigmask accessors. These are inefficient on
- * SMP architectures because they require atomic operations.
- */
-
-/**
- * set_restore_sigmask() - make sure saved_sigmask processing gets done
- *
- * This sets TIF_RESTORE_SIGMASK and ensures that the arch signal code
- * will run before returning to user mode, to process the flag. For
- * all callers, TIF_SIGPENDING is already set or it's no harm to set
- * it. TIF_RESTORE_SIGMASK need not be in the set of bits that the
- * arch code will notice on return to user mode, in case those bits
- * are scarce. We set TIF_SIGPENDING here to ensure that the arch
- * signal code always gets run when TIF_RESTORE_SIGMASK is set.
- */
-static inline void set_restore_sigmask(void)
-{
- set_thread_flag(TIF_RESTORE_SIGMASK);
- WARN_ON(!test_thread_flag(TIF_SIGPENDING));
-}
-static inline void clear_restore_sigmask(void)
-{
- clear_thread_flag(TIF_RESTORE_SIGMASK);
-}
-static inline bool test_restore_sigmask(void)
-{
- return test_thread_flag(TIF_RESTORE_SIGMASK);
-}
-static inline bool test_and_clear_restore_sigmask(void)
-{
- return test_and_clear_thread_flag(TIF_RESTORE_SIGMASK);
-}
-
-#else /* TIF_RESTORE_SIGMASK */
-
-/* Higher-quality implementation, used if TIF_RESTORE_SIGMASK doesn't exist. */
-static inline void set_restore_sigmask(void)
-{
- current->restore_sigmask = true;
- WARN_ON(!test_thread_flag(TIF_SIGPENDING));
-}
-static inline void clear_restore_sigmask(void)
-{
- current->restore_sigmask = false;
-}
-static inline bool test_restore_sigmask(void)
-{
- return current->restore_sigmask;
-}
-static inline bool test_and_clear_restore_sigmask(void)
-{
- if (!current->restore_sigmask)
- return false;
- current->restore_sigmask = false;
- return true;
-}
-#endif
-
-static inline void restore_saved_sigmask(void)
-{
- if (test_and_clear_restore_sigmask())
- __set_current_blocked(&current->saved_sigmask);
-}
-
-static inline sigset_t *sigmask_to_save(void)
-{
- sigset_t *res = &current->blocked;
- if (unlikely(test_restore_sigmask()))
- res = &current->saved_sigmask;
- return res;
-}
-
-static inline int kill_cad_pid(int sig, int priv)
-{
- return kill_pid(cad_pid, sig, priv);
-}
-
-/* These can be the second arg to send_sig_info/send_group_sig_info. */
-#define SEND_SIG_NOINFO ((struct siginfo *) 0)
-#define SEND_SIG_PRIV ((struct siginfo *) 1)
-#define SEND_SIG_FORCED ((struct siginfo *) 2)
-
-/*
- * True if we are on the alternate signal stack.
- */
-static inline int on_sig_stack(unsigned long sp)
-{
- /*
- * If the signal stack is SS_AUTODISARM then, by construction, we
- * can't be on the signal stack unless user code deliberately set
- * SS_AUTODISARM when we were already on it.
- *
- * This improves reliability: if user state gets corrupted such that
- * the stack pointer points very close to the end of the signal stack,
- * then this check will enable the signal to be handled anyway.
- */
- if (current->sas_ss_flags & SS_AUTODISARM)
- return 0;
-
-#ifdef CONFIG_STACK_GROWSUP
- return sp >= current->sas_ss_sp &&
- sp - current->sas_ss_sp < current->sas_ss_size;
-#else
- return sp > current->sas_ss_sp &&
- sp - current->sas_ss_sp <= current->sas_ss_size;
-#endif
-}
-
-static inline int sas_ss_flags(unsigned long sp)
-{
- if (!current->sas_ss_size)
- return SS_DISABLE;
-
- return on_sig_stack(sp) ? SS_ONSTACK : 0;
-}
-
-static inline void sas_ss_reset(struct task_struct *p)
-{
- p->sas_ss_sp = 0;
- p->sas_ss_size = 0;
- p->sas_ss_flags = SS_DISABLE;
-}
-
-static inline unsigned long sigsp(unsigned long sp, struct ksignal *ksig)
-{
- if (unlikely((ksig->ka.sa.sa_flags & SA_ONSTACK)) && ! sas_ss_flags(sp))
-#ifdef CONFIG_STACK_GROWSUP
- return current->sas_ss_sp;
-#else
- return current->sas_ss_sp + current->sas_ss_size;
-#endif
- return sp;
-}

#ifdef CONFIG_HAVE_COPY_THREAD_TLS
extern int copy_thread_tls(unsigned long, unsigned long, unsigned long,
@@ -2347,10 +1972,8 @@ static inline void exit_thread(struct task_struct *tsk)
#endif

extern void exit_files(struct task_struct *);
-extern void __cleanup_sighand(struct sighand_struct *);

extern void exit_itimers(struct signal_struct *);
-extern void flush_itimer_signals(void);

extern void do_group_exit(int);

@@ -2385,78 +2008,6 @@ static inline unsigned long wait_task_inactive(struct task_struct *p,
}
#endif

-#define tasklist_empty() \
- list_empty(&init_task.tasks)
-
-#define next_task(p) \
- list_entry_rcu((p)->tasks.next, struct task_struct, tasks)
-
-#define for_each_process(p) \
- for (p = &init_task ; (p = next_task(p)) != &init_task ; )
-
-extern bool current_is_single_threaded(void);
-
-/*
- * Careful: do_each_thread/while_each_thread is a double loop so
- * 'break' will not work as expected - use goto instead.
- */
-#define do_each_thread(g, t) \
- for (g = t = &init_task ; (g = t = next_task(g)) != &init_task ; ) do
-
-#define while_each_thread(g, t) \
- while ((t = next_thread(t)) != g)
-
-#define __for_each_thread(signal, t) \
- list_for_each_entry_rcu(t, &(signal)->thread_head, thread_node)
-
-#define for_each_thread(p, t) \
- __for_each_thread((p)->signal, t)
-
-/* Careful: this is a double loop, 'break' won't work as expected. */
-#define for_each_process_thread(p, t) \
- for_each_process(p) for_each_thread(p, t)
-
-static inline int get_nr_threads(struct task_struct *tsk)
-{
- return tsk->signal->nr_threads;
-}
-
-static inline bool thread_group_leader(struct task_struct *p)
-{
- return p->exit_signal >= 0;
-}
-
-/* Do to the insanities of de_thread it is possible for a process
- * to have the pid of the thread group leader without actually being
- * the thread group leader. For iteration through the pids in proc
- * all we care about is that we have a task with the appropriate
- * pid, we don't actually care if we have the right task.
- */
-static inline bool has_group_leader_pid(struct task_struct *p)
-{
- return task_pid(p) == p->signal->leader_pid;
-}
-
-static inline
-bool same_thread_group(struct task_struct *p1, struct task_struct *p2)
-{
- return p1->signal == p2->signal;
-}
-
-static inline struct task_struct *next_thread(const struct task_struct *p)
-{
- return list_entry_rcu(p->thread_group.next,
- struct task_struct, thread_group);
-}
-
-static inline int thread_group_empty(struct task_struct *p)
-{
- return list_empty(&p->thread_group);
-}
-
-#define delay_group_leader(p) \
- (thread_group_leader(p) && !thread_group_empty(p))
-
/*
* Protects ->fs, ->files, ->mm, ->group_info, ->comm, keyring
* subscriptions and synchronises with wait4(). Also used in procfs. Also
@@ -2477,25 +2028,6 @@ static inline void task_unlock(struct task_struct *p)
spin_unlock(&p->alloc_lock);
}

-extern struct sighand_struct *__lock_task_sighand(struct task_struct *tsk,
- unsigned long *flags);
-
-static inline struct sighand_struct *lock_task_sighand(struct task_struct *tsk,
- unsigned long *flags)
-{
- struct sighand_struct *ret;
-
- ret = __lock_task_sighand(tsk, flags);
- (void)__cond_lock(&tsk->sighand->siglock, ret);
- return ret;
-}
-
-static inline void unlock_task_sighand(struct task_struct *tsk,
- unsigned long *flags)
-{
- spin_unlock_irqrestore(&tsk->sighand->siglock, *flags);
-}
-
/**
* threadgroup_change_begin - mark the beginning of changes to a threadgroup
* @tsk: task causing the changes
@@ -2905,28 +2437,6 @@ static inline void mm_update_next_owner(struct mm_struct *mm)
}
#endif /* CONFIG_MEMCG */

-static inline unsigned long task_rlimit(const struct task_struct *tsk,
- unsigned int limit)
-{
- return READ_ONCE(tsk->signal->rlim[limit].rlim_cur);
-}
-
-static inline unsigned long task_rlimit_max(const struct task_struct *tsk,
- unsigned int limit)
-{
- return READ_ONCE(tsk->signal->rlim[limit].rlim_max);
-}
-
-static inline unsigned long rlimit(unsigned int limit)
-{
- return task_rlimit(current, limit);
-}
-
-static inline unsigned long rlimit_max(unsigned int limit)
-{
- return task_rlimit_max(current, limit);
-}
-
#define SCHED_CPUFREQ_RT (1U << 0)
#define SCHED_CPUFREQ_DL (1U << 1)
#define SCHED_CPUFREQ_IOWAIT (1U << 2)
diff --git a/include/linux/sched/signal.h b/include/linux/sched/signal.h
new file mode 100644
index 000000000000..613d9f9b3fe5
--- /dev/null
+++ b/include/linux/sched/signal.h
@@ -0,0 +1,505 @@
+#ifndef _LINUX_SCHED_SIGNAL_H
+#define _LINUX_SCHED_SIGNAL_H
+
+#include <linux/sched.h>
+
+/*
+ * Types defining task->signal and task->sighand and APIs using them:
+ */
+
+struct sighand_struct {
+ atomic_t count;
+ struct k_sigaction action[_NSIG];
+ spinlock_t siglock;
+ wait_queue_head_t signalfd_wqh;
+};
+
+/*
+ * NOTE! "signal_struct" does not have its own
+ * locking, because a shared signal_struct always
+ * implies a shared sighand_struct, so locking
+ * sighand_struct is always a proper superset of
+ * the locking of signal_struct.
+ */
+struct signal_struct {
+ atomic_t sigcnt;
+ atomic_t live;
+ int nr_threads;
+ struct list_head thread_head;
+
+ wait_queue_head_t wait_chldexit; /* for wait4() */
+
+ /* current thread group signal load-balancing target: */
+ struct task_struct *curr_target;
+
+ /* shared signal handling: */
+ struct sigpending shared_pending;
+
+ /* thread group exit support */
+ int group_exit_code;
+ /* overloaded:
+ * - notify group_exit_task when ->count is equal to notify_count
+ * - everyone except group_exit_task is stopped during signal delivery
+ * of fatal signals, group_exit_task processes the signal.
+ */
+ int notify_count;
+ struct task_struct *group_exit_task;
+
+ /* thread group stop support, overloads group_exit_code too */
+ int group_stop_count;
+ unsigned int flags; /* see SIGNAL_* flags below */
+
+ /*
+ * PR_SET_CHILD_SUBREAPER marks a process, like a service
+ * manager, to re-parent orphan (double-forking) child processes
+ * to this process instead of 'init'. The service manager is
+ * able to receive SIGCHLD signals and is able to investigate
+ * the process until it calls wait(). All children of this
+ * process will inherit a flag if they should look for a
+ * child_subreaper process at exit.
+ */
+ unsigned int is_child_subreaper:1;
+ unsigned int has_child_subreaper:1;
+
+#ifdef CONFIG_POSIX_TIMERS
+
+ /* POSIX.1b Interval Timers */
+ int posix_timer_id;
+ struct list_head posix_timers;
+
+ /* ITIMER_REAL timer for the process */
+ struct hrtimer real_timer;
+ ktime_t it_real_incr;
+
+ /*
+ * ITIMER_PROF and ITIMER_VIRTUAL timers for the process, we use
+ * CPUCLOCK_PROF and CPUCLOCK_VIRT for indexing array as these
+ * values are defined to 0 and 1 respectively
+ */
+ struct cpu_itimer it[2];
+
+ /*
+ * Thread group totals for process CPU timers.
+ * See thread_group_cputimer(), et al, for details.
+ */
+ struct thread_group_cputimer cputimer;
+
+ /* Earliest-expiration cache. */
+ struct task_cputime cputime_expires;
+
+ struct list_head cpu_timers[3];
+
+#endif
+
+ struct pid *leader_pid;
+
+#ifdef CONFIG_NO_HZ_FULL
+ atomic_t tick_dep_mask;
+#endif
+
+ struct pid *tty_old_pgrp;
+
+ /* boolean value for session group leader */
+ int leader;
+
+ struct tty_struct *tty; /* NULL if no tty */
+
+#ifdef CONFIG_SCHED_AUTOGROUP
+ struct autogroup *autogroup;
+#endif
+ /*
+ * Cumulative resource counters for dead threads in the group,
+ * and for reaped dead child processes forked by this group.
+ * Live threads maintain their own counters and add to these
+ * in __exit_signal, except for the group leader.
+ */
+ seqlock_t stats_lock;
+ u64 utime, stime, cutime, cstime;
+ u64 gtime;
+ u64 cgtime;
+ struct prev_cputime prev_cputime;
+ unsigned long nvcsw, nivcsw, cnvcsw, cnivcsw;
+ unsigned long min_flt, maj_flt, cmin_flt, cmaj_flt;
+ unsigned long inblock, oublock, cinblock, coublock;
+ unsigned long maxrss, cmaxrss;
+ struct task_io_accounting ioac;
+
+ /*
+ * Cumulative ns of schedule CPU time fo dead threads in the
+ * group, not including a zombie group leader, (This only differs
+ * from jiffies_to_ns(utime + stime) if sched_clock uses something
+ * other than jiffies.)
+ */
+ unsigned long long sum_sched_runtime;
+
+ /*
+ * We don't bother to synchronize most readers of this at all,
+ * because there is no reader checking a limit that actually needs
+ * to get both rlim_cur and rlim_max atomically, and either one
+ * alone is a single word that can safely be read normally.
+ * getrlimit/setrlimit use task_lock(current->group_leader) to
+ * protect this instead of the siglock, because they really
+ * have no need to disable irqs.
+ */
+ struct rlimit rlim[RLIM_NLIMITS];
+
+#ifdef CONFIG_BSD_PROCESS_ACCT
+ struct pacct_struct pacct; /* per-process accounting information */
+#endif
+#ifdef CONFIG_TASKSTATS
+ struct taskstats *stats;
+#endif
+#ifdef CONFIG_AUDIT
+ unsigned audit_tty;
+ struct tty_audit_buf *tty_audit_buf;
+#endif
+
+ /*
+ * Thread is the potential origin of an oom condition; kill first on
+ * oom
+ */
+ bool oom_flag_origin;
+ short oom_score_adj; /* OOM kill score adjustment */
+ short oom_score_adj_min; /* OOM kill score adjustment min value.
+ * Only settable by CAP_SYS_RESOURCE. */
+ struct mm_struct *oom_mm; /* recorded mm when the thread group got
+ * killed by the oom killer */
+
+ struct mutex cred_guard_mutex; /* guard against foreign influences on
+ * credential calculations
+ * (notably. ptrace) */
+};
+
+/*
+ * Bits in flags field of signal_struct.
+ */
+#define SIGNAL_STOP_STOPPED 0x00000001 /* job control stop in effect */
+#define SIGNAL_STOP_CONTINUED 0x00000002 /* SIGCONT since WCONTINUED reap */
+#define SIGNAL_GROUP_EXIT 0x00000004 /* group exit in progress */
+#define SIGNAL_GROUP_COREDUMP 0x00000008 /* coredump in progress */
+/*
+ * Pending notifications to parent.
+ */
+#define SIGNAL_CLD_STOPPED 0x00000010
+#define SIGNAL_CLD_CONTINUED 0x00000020
+#define SIGNAL_CLD_MASK (SIGNAL_CLD_STOPPED|SIGNAL_CLD_CONTINUED)
+
+#define SIGNAL_UNKILLABLE 0x00000040 /* for init: ignore fatal signals */
+
+#define SIGNAL_STOP_MASK (SIGNAL_CLD_MASK | SIGNAL_STOP_STOPPED | \
+ SIGNAL_STOP_CONTINUED)
+
+static inline void signal_set_stop_flags(struct signal_struct *sig,
+ unsigned int flags)
+{
+ WARN_ON(sig->flags & (SIGNAL_GROUP_EXIT|SIGNAL_GROUP_COREDUMP));
+ sig->flags = (sig->flags & ~SIGNAL_STOP_MASK) | flags;
+}
+
+/* If true, all threads except ->group_exit_task have pending SIGKILL */
+static inline int signal_group_exit(const struct signal_struct *sig)
+{
+ return (sig->flags & SIGNAL_GROUP_EXIT) ||
+ (sig->group_exit_task != NULL);
+}
+
+extern void flush_signals(struct task_struct *);
+extern void ignore_signals(struct task_struct *);
+extern void flush_signal_handlers(struct task_struct *, int force_default);
+extern int dequeue_signal(struct task_struct *tsk, sigset_t *mask, siginfo_t *info);
+
+static inline int kernel_dequeue_signal(siginfo_t *info)
+{
+ struct task_struct *tsk = current;
+ siginfo_t __info;
+ int ret;
+
+ spin_lock_irq(&tsk->sighand->siglock);
+ ret = dequeue_signal(tsk, &tsk->blocked, info ?: &__info);
+ spin_unlock_irq(&tsk->sighand->siglock);
+
+ return ret;
+}
+
+static inline void kernel_signal_stop(void)
+{
+ spin_lock_irq(&current->sighand->siglock);
+ if (current->jobctl & JOBCTL_STOP_DEQUEUED)
+ __set_current_state(TASK_STOPPED);
+ spin_unlock_irq(&current->sighand->siglock);
+
+ schedule();
+}
+extern int send_sig_info(int, struct siginfo *, struct task_struct *);
+extern int force_sigsegv(int, struct task_struct *);
+extern int force_sig_info(int, struct siginfo *, struct task_struct *);
+extern int __kill_pgrp_info(int sig, struct siginfo *info, struct pid *pgrp);
+extern int kill_pid_info(int sig, struct siginfo *info, struct pid *pid);
+extern int kill_pid_info_as_cred(int, struct siginfo *, struct pid *,
+ const struct cred *, u32);
+extern int kill_pgrp(struct pid *pid, int sig, int priv);
+extern int kill_pid(struct pid *pid, int sig, int priv);
+extern int kill_proc_info(int, struct siginfo *, pid_t);
+extern __must_check bool do_notify_parent(struct task_struct *, int);
+extern void __wake_up_parent(struct task_struct *p, struct task_struct *parent);
+extern void force_sig(int, struct task_struct *);
+extern int send_sig(int, struct task_struct *, int);
+extern int zap_other_threads(struct task_struct *p);
+extern struct sigqueue *sigqueue_alloc(void);
+extern void sigqueue_free(struct sigqueue *);
+extern int send_sigqueue(struct sigqueue *, struct task_struct *, int group);
+extern int do_sigaction(int, struct k_sigaction *, struct k_sigaction *);
+
+#ifdef TIF_RESTORE_SIGMASK
+/*
+ * Legacy restore_sigmask accessors. These are inefficient on
+ * SMP architectures because they require atomic operations.
+ */
+
+/**
+ * set_restore_sigmask() - make sure saved_sigmask processing gets done
+ *
+ * This sets TIF_RESTORE_SIGMASK and ensures that the arch signal code
+ * will run before returning to user mode, to process the flag. For
+ * all callers, TIF_SIGPENDING is already set or it's no harm to set
+ * it. TIF_RESTORE_SIGMASK need not be in the set of bits that the
+ * arch code will notice on return to user mode, in case those bits
+ * are scarce. We set TIF_SIGPENDING here to ensure that the arch
+ * signal code always gets run when TIF_RESTORE_SIGMASK is set.
+ */
+static inline void set_restore_sigmask(void)
+{
+ set_thread_flag(TIF_RESTORE_SIGMASK);
+ WARN_ON(!test_thread_flag(TIF_SIGPENDING));
+}
+static inline void clear_restore_sigmask(void)
+{
+ clear_thread_flag(TIF_RESTORE_SIGMASK);
+}
+static inline bool test_restore_sigmask(void)
+{
+ return test_thread_flag(TIF_RESTORE_SIGMASK);
+}
+static inline bool test_and_clear_restore_sigmask(void)
+{
+ return test_and_clear_thread_flag(TIF_RESTORE_SIGMASK);
+}
+
+#else /* TIF_RESTORE_SIGMASK */
+
+/* Higher-quality implementation, used if TIF_RESTORE_SIGMASK doesn't exist. */
+static inline void set_restore_sigmask(void)
+{
+ current->restore_sigmask = true;
+ WARN_ON(!test_thread_flag(TIF_SIGPENDING));
+}
+static inline void clear_restore_sigmask(void)
+{
+ current->restore_sigmask = false;
+}
+static inline bool test_restore_sigmask(void)
+{
+ return current->restore_sigmask;
+}
+static inline bool test_and_clear_restore_sigmask(void)
+{
+ if (!current->restore_sigmask)
+ return false;
+ current->restore_sigmask = false;
+ return true;
+}
+#endif
+
+static inline void restore_saved_sigmask(void)
+{
+ if (test_and_clear_restore_sigmask())
+ __set_current_blocked(&current->saved_sigmask);
+}
+
+static inline sigset_t *sigmask_to_save(void)
+{
+ sigset_t *res = &current->blocked;
+ if (unlikely(test_restore_sigmask()))
+ res = &current->saved_sigmask;
+ return res;
+}
+
+static inline int kill_cad_pid(int sig, int priv)
+{
+ return kill_pid(cad_pid, sig, priv);
+}
+
+/* These can be the second arg to send_sig_info/send_group_sig_info. */
+#define SEND_SIG_NOINFO ((struct siginfo *) 0)
+#define SEND_SIG_PRIV ((struct siginfo *) 1)
+#define SEND_SIG_FORCED ((struct siginfo *) 2)
+
+/*
+ * True if we are on the alternate signal stack.
+ */
+static inline int on_sig_stack(unsigned long sp)
+{
+ /*
+ * If the signal stack is SS_AUTODISARM then, by construction, we
+ * can't be on the signal stack unless user code deliberately set
+ * SS_AUTODISARM when we were already on it.
+ *
+ * This improves reliability: if user state gets corrupted such that
+ * the stack pointer points very close to the end of the signal stack,
+ * then this check will enable the signal to be handled anyway.
+ */
+ if (current->sas_ss_flags & SS_AUTODISARM)
+ return 0;
+
+#ifdef CONFIG_STACK_GROWSUP
+ return sp >= current->sas_ss_sp &&
+ sp - current->sas_ss_sp < current->sas_ss_size;
+#else
+ return sp > current->sas_ss_sp &&
+ sp - current->sas_ss_sp <= current->sas_ss_size;
+#endif
+}
+
+static inline int sas_ss_flags(unsigned long sp)
+{
+ if (!current->sas_ss_size)
+ return SS_DISABLE;
+
+ return on_sig_stack(sp) ? SS_ONSTACK : 0;
+}
+
+static inline void sas_ss_reset(struct task_struct *p)
+{
+ p->sas_ss_sp = 0;
+ p->sas_ss_size = 0;
+ p->sas_ss_flags = SS_DISABLE;
+}
+
+static inline unsigned long sigsp(unsigned long sp, struct ksignal *ksig)
+{
+ if (unlikely((ksig->ka.sa.sa_flags & SA_ONSTACK)) && ! sas_ss_flags(sp))
+#ifdef CONFIG_STACK_GROWSUP
+ return current->sas_ss_sp;
+#else
+ return current->sas_ss_sp + current->sas_ss_size;
+#endif
+ return sp;
+}
+
+extern void __cleanup_sighand(struct sighand_struct *);
+extern void flush_itimer_signals(void);
+
+#define tasklist_empty() \
+ list_empty(&init_task.tasks)
+
+#define next_task(p) \
+ list_entry_rcu((p)->tasks.next, struct task_struct, tasks)
+
+#define for_each_process(p) \
+ for (p = &init_task ; (p = next_task(p)) != &init_task ; )
+
+extern bool current_is_single_threaded(void);
+
+/*
+ * Careful: do_each_thread/while_each_thread is a double loop so
+ * 'break' will not work as expected - use goto instead.
+ */
+#define do_each_thread(g, t) \
+ for (g = t = &init_task ; (g = t = next_task(g)) != &init_task ; ) do
+
+#define while_each_thread(g, t) \
+ while ((t = next_thread(t)) != g)
+
+#define __for_each_thread(signal, t) \
+ list_for_each_entry_rcu(t, &(signal)->thread_head, thread_node)
+
+#define for_each_thread(p, t) \
+ __for_each_thread((p)->signal, t)
+
+/* Careful: this is a double loop, 'break' won't work as expected. */
+#define for_each_process_thread(p, t) \
+ for_each_process(p) for_each_thread(p, t)
+
+static inline int get_nr_threads(struct task_struct *tsk)
+{
+ return tsk->signal->nr_threads;
+}
+
+static inline bool thread_group_leader(struct task_struct *p)
+{
+ return p->exit_signal >= 0;
+}
+
+/* Do to the insanities of de_thread it is possible for a process
+ * to have the pid of the thread group leader without actually being
+ * the thread group leader. For iteration through the pids in proc
+ * all we care about is that we have a task with the appropriate
+ * pid, we don't actually care if we have the right task.
+ */
+static inline bool has_group_leader_pid(struct task_struct *p)
+{
+ return task_pid(p) == p->signal->leader_pid;
+}
+
+static inline
+bool same_thread_group(struct task_struct *p1, struct task_struct *p2)
+{
+ return p1->signal == p2->signal;
+}
+
+static inline struct task_struct *next_thread(const struct task_struct *p)
+{
+ return list_entry_rcu(p->thread_group.next,
+ struct task_struct, thread_group);
+}
+
+static inline int thread_group_empty(struct task_struct *p)
+{
+ return list_empty(&p->thread_group);
+}
+
+#define delay_group_leader(p) \
+ (thread_group_leader(p) && !thread_group_empty(p))
+
+extern struct sighand_struct *__lock_task_sighand(struct task_struct *tsk,
+ unsigned long *flags);
+
+static inline struct sighand_struct *lock_task_sighand(struct task_struct *tsk,
+ unsigned long *flags)
+{
+ struct sighand_struct *ret;
+
+ ret = __lock_task_sighand(tsk, flags);
+ (void)__cond_lock(&tsk->sighand->siglock, ret);
+ return ret;
+}
+
+static inline void unlock_task_sighand(struct task_struct *tsk,
+ unsigned long *flags)
+{
+ spin_unlock_irqrestore(&tsk->sighand->siglock, *flags);
+}
+
+static inline unsigned long task_rlimit(const struct task_struct *tsk,
+ unsigned int limit)
+{
+ return READ_ONCE(tsk->signal->rlim[limit].rlim_cur);
+}
+
+static inline unsigned long task_rlimit_max(const struct task_struct *tsk,
+ unsigned int limit)
+{
+ return READ_ONCE(tsk->signal->rlim[limit].rlim_max);
+}
+
+static inline unsigned long rlimit(unsigned int limit)
+{
+ return task_rlimit(current, limit);
+}
+
+static inline unsigned long rlimit_max(unsigned int limit)
+{
+ return task_rlimit_max(current, limit);
+}
+
+#endif /* _LINUX_SCHED_SIGNAL_H */
diff --git a/include/linux/signalfd.h b/include/linux/signalfd.h
index eadbe227c256..4985048640a7 100644
--- a/include/linux/signalfd.h
+++ b/include/linux/signalfd.h
@@ -8,7 +8,7 @@
#define _LINUX_SIGNALFD_H

#include <uapi/linux/signalfd.h>
-
+#include <linux/sched/signal.h>

#ifdef CONFIG_SIGNALFD

diff --git a/include/linux/taskstats_kern.h b/include/linux/taskstats_kern.h
index 58de6edf751f..e2a5daf8d14f 100644
--- a/include/linux/taskstats_kern.h
+++ b/include/linux/taskstats_kern.h
@@ -8,7 +8,7 @@
#define _LINUX_TASKSTATS_KERN_H

#include <linux/taskstats.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/slab.h>

#ifdef CONFIG_TASKSTATS
diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index a604f1036067..318d618eac81 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -36,6 +36,7 @@
#include <linux/user_namespace.h>
#include <linux/slab.h>
#include <linux/sched/wake_q.h>
+#include <linux/sched/signal.h>

#include <net/sock.h>
#include "util.h"
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index 19b6129eab23..4ddd0100fbfe 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -12,6 +12,7 @@
#include <linux/bpf.h>
#include <linux/syscalls.h>
#include <linux/slab.h>
+#include <linux/sched/signal.h>
#include <linux/vmalloc.h>
#include <linux/mmzone.h>
#include <linux/anon_inodes.h>
diff --git a/kernel/cpu.c b/kernel/cpu.c
index 0a5f630f5c54..0aae3183b029 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -7,7 +7,7 @@
#include <linux/smp.h>
#include <linux/init.h>
#include <linux/notifier.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/unistd.h>
#include <linux/cpu.h>
#include <linux/oom.h>
diff --git a/kernel/debug/gdbstub.c b/kernel/debug/gdbstub.c
index 19d9a578c753..7510dc687c0d 100644
--- a/kernel/debug/gdbstub.c
+++ b/kernel/debug/gdbstub.c
@@ -29,6 +29,7 @@
*/

#include <linux/kernel.h>
+#include <linux/sched/signal.h>
#include <linux/kgdb.h>
#include <linux/kdb.h>
#include <linux/serial_core.h>
diff --git a/kernel/debug/kdb/kdb_bt.c b/kernel/debug/kdb/kdb_bt.c
index fe15fff5df53..9b976a42376d 100644
--- a/kernel/debug/kdb/kdb_bt.c
+++ b/kernel/debug/kdb/kdb_bt.c
@@ -12,7 +12,7 @@
#include <linux/ctype.h>
#include <linux/string.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/kdb.h>
#include <linux/nmi.h>
#include "kdb_private.h"
diff --git a/kernel/hung_task.c b/kernel/hung_task.c
index 40c07e4fa116..129247e56902 100644
--- a/kernel/hung_task.c
+++ b/kernel/hung_task.c
@@ -16,6 +16,8 @@
#include <linux/export.h>
#include <linux/sysctl.h>
#include <linux/utsname.h>
+#include <linux/sched/signal.h>
+
#include <trace/events/sched.h>

/*
diff --git a/kernel/rcu/update.c b/kernel/rcu/update.c
index 4f6db7e6a117..80fe269a90b4 100644
--- a/kernel/rcu/update.c
+++ b/kernel/rcu/update.c
@@ -36,7 +36,7 @@
#include <linux/spinlock.h>
#include <linux/smp.h>
#include <linux/interrupt.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/atomic.h>
#include <linux/bitops.h>
#include <linux/percpu.h>
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index e2307a6c29f1..641249471952 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -5,6 +5,7 @@
#include <linux/sched/rt.h>
#include <linux/sched/clock.h>
#include <linux/sched/wake_q.h>
+#include <linux/sched/signal.h>
#include <linux/sched/mm.h>
#include <linux/u64_stats_sync.h>
#include <linux/sched/deadline.h>
diff --git a/kernel/time/itimer.c b/kernel/time/itimer.c
index a95f13c31464..f6b961c5e58c 100644
--- a/kernel/time/itimer.c
+++ b/kernel/time/itimer.c
@@ -10,6 +10,7 @@
#include <linux/interrupt.h>
#include <linux/syscalls.h>
#include <linux/time.h>
+#include <linux/sched/signal.h>
#include <linux/posix-timers.h>
#include <linux/hrtimer.h>
#include <trace/events/timer.h>
diff --git a/kernel/time/posix-cpu-timers.c b/kernel/time/posix-cpu-timers.c
index b4377a5e4269..a2475a9f57d8 100644
--- a/kernel/time/posix-cpu-timers.c
+++ b/kernel/time/posix-cpu-timers.c
@@ -2,7 +2,7 @@
* Implement CPU time clocks for the POSIX clock interface.
*/

-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/posix-timers.h>
#include <linux/errno.h>
#include <linux/math64.h>
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index 302e8090d412..71bf056e782e 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -18,7 +18,7 @@
#include <linux/kernel_stat.h>
#include <linux/percpu.h>
#include <linux/profile.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/sched/clock.h>
#include <linux/module.h>
#include <linux/irq_work.h>
diff --git a/kernel/tracepoint.c b/kernel/tracepoint.c
index 1f9a31f934a4..9f6984d52fec 100644
--- a/kernel/tracepoint.c
+++ b/kernel/tracepoint.c
@@ -24,7 +24,7 @@
#include <linux/tracepoint.h>
#include <linux/err.h>
#include <linux/slab.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/static_key.h>

extern struct tracepoint * const __start___tracepoints_ptrs[];
diff --git a/kernel/tsacct.c b/kernel/tsacct.c
index 571a2d3821d8..d9a03b80b75d 100644
--- a/kernel/tsacct.c
+++ b/kernel/tsacct.c
@@ -17,7 +17,7 @@
*/

#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/sched/mm.h>
#include <linux/tsacct_kern.h>
#include <linux/acct.h>
diff --git a/kernel/user_namespace.c b/kernel/user_namespace.c
index 86b7854fec8e..2f735cbe05e8 100644
--- a/kernel/user_namespace.c
+++ b/kernel/user_namespace.c
@@ -8,6 +8,7 @@
#include <linux/export.h>
#include <linux/nsproxy.h>
#include <linux/slab.h>
+#include <linux/sched/signal.h>
#include <linux/user_namespace.h>
#include <linux/proc_ns.h>
#include <linux/highuid.h>
diff --git a/lib/is_single_threaded.c b/lib/is_single_threaded.c
index 391fd23976a2..9745cfffcb69 100644
--- a/lib/is_single_threaded.c
+++ b/lib/is_single_threaded.c
@@ -9,8 +9,7 @@
* as published by the Free Software Foundation; either version
* 2 of the Licence, or (at your option) any later version.
*/
-
-#include <linux/sched.h>
+#include <linux/sched/signal.h>

/*
* Returns true if the task does not share ->mm with another thread/process.
diff --git a/mm/filemap.c b/mm/filemap.c
index b772a33ef640..9c8abbcc59ee 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -13,6 +13,7 @@
#include <linux/compiler.h>
#include <linux/dax.h>
#include <linux/fs.h>
+#include <linux/sched/signal.h>
#include <linux/uaccess.h>
#include <linux/capability.h>
#include <linux/kernel_stat.h>
diff --git a/mm/kmemleak.c b/mm/kmemleak.c
index da3436953022..2df6d3687b2a 100644
--- a/mm/kmemleak.c
+++ b/mm/kmemleak.c
@@ -73,7 +73,7 @@
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/list.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/jiffies.h>
#include <linux/delay.h>
#include <linux/export.h>
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index f283c7e0a2a3..ab9f24730aa0 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -40,7 +40,7 @@
#include <linux/mm.h>
#include <linux/page-flags.h>
#include <linux/kernel-page-flags.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/ksm.h>
#include <linux/rmap.h>
#include <linux/export.h>
diff --git a/mm/vmacache.c b/mm/vmacache.c
index 035fdeb35b43..7799f7b00981 100644
--- a/mm/vmacache.c
+++ b/mm/vmacache.c
@@ -1,7 +1,7 @@
/*
* Copyright (C) 2014 Davidlohr Bueso.
*/
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/mm.h>
#include <linux/vmacache.h>

diff --git a/net/9p/client.c b/net/9p/client.c
index 3fc94a49ccd5..25cfd8a4bc36 100644
--- a/net/9p/client.c
+++ b/net/9p/client.c
@@ -32,7 +32,7 @@
#include <linux/idr.h>
#include <linux/mutex.h>
#include <linux/slab.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/uaccess.h>
#include <linux/uio.h>
#include <net/9p/9p.h>
diff --git a/net/atm/common.c b/net/atm/common.c
index a3ca922d307b..9613381f5db0 100644
--- a/net/atm/common.c
+++ b/net/atm/common.c
@@ -13,7 +13,7 @@
#include <linux/errno.h> /* error codes */
#include <linux/capability.h>
#include <linux/mm.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/time.h> /* struct timeval */
#include <linux/skbuff.h>
#include <linux/bitops.h>
diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c
index 90fcf5fc2e0a..a8e42cedf1db 100644
--- a/net/ax25/af_ax25.c
+++ b/net/ax25/af_ax25.c
@@ -20,7 +20,7 @@
#include <linux/socket.h>
#include <linux/in.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/timer.h>
#include <linux/string.h>
#include <linux/sockios.h>
diff --git a/net/caif/caif_socket.c b/net/caif/caif_socket.c
index 92cbbd2afddb..adcad344c843 100644
--- a/net/caif/caif_socket.c
+++ b/net/caif/caif_socket.c
@@ -9,7 +9,7 @@
#include <linux/fs.h>
#include <linux/init.h>
#include <linux/module.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/spinlock.h>
#include <linux/mutex.h>
#include <linux/list.h>
diff --git a/net/core/stream.c b/net/core/stream.c
index f575bcf64af2..20231dbb1da0 100644
--- a/net/core/stream.c
+++ b/net/core/stream.c
@@ -13,6 +13,7 @@
*/

#include <linux/module.h>
+#include <linux/sched/signal.h>
#include <linux/net.h>
#include <linux/signal.h>
#include <linux/tcp.h>
diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c
index a90ed67027b0..e6e79eda9763 100644
--- a/net/decnet/af_decnet.c
+++ b/net/decnet/af_decnet.c
@@ -106,7 +106,7 @@ Version 0.0.6 2.1.110 07-aug-98 Eduardo Marcelo Serrat
#include <linux/socket.h>
#include <linux/in.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/timer.h>
#include <linux/string.h>
#include <linux/sockios.h>
diff --git a/net/irda/af_irda.c b/net/irda/af_irda.c
index ab254041dab7..81adc29a448d 100644
--- a/net/irda/af_irda.c
+++ b/net/irda/af_irda.c
@@ -46,6 +46,7 @@
#include <linux/socket.h>
#include <linux/sockios.h>
#include <linux/slab.h>
+#include <linux/sched/signal.h>
#include <linux/init.h>
#include <linux/net.h>
#include <linux/irda.h>
diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
index ed212ffc1d9d..4bbf4526b885 100644
--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -17,7 +17,7 @@
#include <linux/in.h>
#include <linux/slab.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/timer.h>
#include <linux/string.h>
#include <linux/sockios.h>
diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c
index 9ad301c46b88..b8a1df2c9785 100644
--- a/net/rose/af_rose.c
+++ b/net/rose/af_rose.c
@@ -20,7 +20,7 @@
#include <linux/in.h>
#include <linux/slab.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/spinlock.h>
#include <linux/timer.h>
#include <linux/string.h>
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 37eeab7899fc..095cfd4447d8 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -57,6 +57,7 @@
#include <linux/kernel.h>
#include <linux/wait.h>
#include <linux/time.h>
+#include <linux/sched/signal.h>
#include <linux/ip.h>
#include <linux/capability.h>
#include <linux/fcntl.h>
diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c
index 75f290bddca1..3d28d1112369 100644
--- a/net/sunrpc/svc.c
+++ b/net/sunrpc/svc.c
@@ -11,7 +11,7 @@
*/

#include <linux/linkage.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/errno.h>
#include <linux/net.h>
#include <linux/in.h>
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index cef79873b09d..cc1d6bb34483 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -85,7 +85,7 @@
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/signal.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/stat.h>
diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c
index 079c883aa96e..fd28a49dbe8f 100644
--- a/net/x25/af_x25.c
+++ b/net/x25/af_x25.c
@@ -41,7 +41,7 @@
#include <linux/capability.h>
#include <linux/errno.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/timer.h>
#include <linux/string.h>
#include <linux/net.h>
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index c7c6619431d5..cc06e95025ba 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -28,7 +28,7 @@
#include <linux/kernel.h>
#include <linux/tracehook.h>
#include <linux/errno.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/lsm_hooks.h>
#include <linux/xattr.h>
#include <linux/capability.h>
--
2.7.4

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