Re: [PATCH] bitmap, irq: Add smp_affinity_list interface to /proc/irq

From: KOSAKI Motohiro
Date: Thu Mar 31 2011 - 03:38:07 EST

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> > [If it was up to me, I'd eliminate the bitmask interfaces and just keep the
> > list interfaces. That's the stupid interface that's not needed, and far more
> > shortsighted.]
>
> Agree.
>
> It's not impossible to remove those interfaces. My preferred approach
> is to add a once-per-boot warning printk if anyone uses the old
> interface and to remove the thing altogether in three or five years.
>
> That reminds me. It's been like ten years. Someone please delete sys_bdflush().

This?

But to be honest, this long diffstat seems tell me the worth is doubious. ;-)

---
arch/alpha/kernel/systbls.S | 2 +-
arch/arm/kernel/calls.S | 2 +-
arch/avr32/kernel/syscall_table.S | 2 +-
arch/blackfin/mach-common/entry.S | 2 +-
arch/cris/arch-v10/kernel/entry.S | 2 +-
arch/cris/arch-v32/kernel/entry.S | 2 +-
arch/frv/kernel/entry.S | 2 +-
arch/h8300/kernel/syscalls.S | 2 +-
arch/ia64/kernel/entry.S | 2 +-
arch/m32r/kernel/syscall_table.S | 2 +-
arch/m68k/kernel/entry_mm.S | 2 +-
arch/m68k/kernel/syscalltable.S | 2 +-
arch/microblaze/kernel/syscall_table.S | 2 +-
arch/mips/kernel/scall32-o32.S | 2 +-
arch/mips/kernel/scall64-o32.S | 2 +-
arch/mn10300/kernel/entry.S | 2 +-
arch/parisc/kernel/syscall_table.S | 2 +-
arch/powerpc/include/asm/systbl.h | 2 +-
arch/s390/kernel/compat_wrapper.S | 6 ------
arch/s390/kernel/syscalls.S | 2 +-
arch/sh/kernel/syscalls_32.S | 2 +-
arch/sh/kernel/syscalls_64.S | 2 +-
arch/sparc/kernel/sys32.S | 1 -
arch/sparc/kernel/systbls_32.S | 2 +-
arch/sparc/kernel/systbls_64.S | 4 ++--
arch/x86/kernel/syscall_table_32.S | 2 +-
arch/xtensa/include/asm/unistd.h | 2 +-
fs/buffer.c | 27 ---------------------------
include/asm-generic/unistd.h | 2 +-
include/linux/capability.h | 1 -
include/linux/syscalls.h | 1 -
kernel/sys_ni.c | 1 -
32 files changed, 27 insertions(+), 64 deletions(-)

diff --git a/arch/alpha/kernel/systbls.S b/arch/alpha/kernel/systbls.S
index a6a1de9..6165de6 100644
--- a/arch/alpha/kernel/systbls.S
+++ b/arch/alpha/kernel/systbls.S
@@ -318,7 +318,7 @@ sys_call_table:
.quad alpha_ni_syscall
.quad alpha_ni_syscall
/* linux-specific system calls start at 300 */
- .quad sys_bdflush /* 300 */
+ .quad sys_ni_syscall /* 300: old sys_bdflush */
.quad sys_sethae
.quad sys_mount
.quad sys_old_adjtimex
diff --git a/arch/arm/kernel/calls.S b/arch/arm/kernel/calls.S
index 5c26ecc..1786738 100644
--- a/arch/arm/kernel/calls.S
+++ b/arch/arm/kernel/calls.S
@@ -143,7 +143,7 @@
CALL(sys_quotactl)
CALL(sys_getpgid)
CALL(sys_fchdir)
- CALL(sys_bdflush)
+ CALL(sys_ni_syscall)
/* 135 */ CALL(sys_sysfs)
CALL(sys_personality)
CALL(sys_ni_syscall) /* reserved for afs_syscall */
diff --git a/arch/avr32/kernel/syscall_table.S b/arch/avr32/kernel/syscall_table.S
index e76bad1..cdea078 100644
--- a/arch/avr32/kernel/syscall_table.S
+++ b/arch/avr32/kernel/syscall_table.S
@@ -132,7 +132,7 @@ sys_call_table:
.long sys_delete_module
.long sys_quotactl
.long sys_getpgid
- .long sys_bdflush
+ .long sys_ni_syscall /* was sys_bdflush */
.long sys_sysfs /* 120 */
.long sys_personality
.long sys_ni_syscall /* reserved for afs_syscall */
diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S
index 46ab457..23a0a0e 100644
--- a/arch/blackfin/mach-common/entry.S
+++ b/arch/blackfin/mach-common/entry.S
@@ -1508,7 +1508,7 @@ ENTRY(_sys_call_table)
.long _sys_quotactl
.long _sys_getpgid
.long _sys_fchdir
- .long _sys_bdflush
+ .long _sys_ni_syscall /* old sys_bdflush */
.long _sys_ni_syscall /* 135 */ /* sys_sysfs */
.long _sys_personality
.long _sys_ni_syscall /* for afs_syscall */
diff --git a/arch/cris/arch-v10/kernel/entry.S b/arch/cris/arch-v10/kernel/entry.S
index 0d6420d..aa2d3d6 100644
--- a/arch/cris/arch-v10/kernel/entry.S
+++ b/arch/cris/arch-v10/kernel/entry.S
@@ -736,7 +736,7 @@ sys_call_table:
.long sys_quotactl
.long sys_getpgid
.long sys_fchdir
- .long sys_bdflush
+ .long sys_ni_syscall /* old "sys_bdflush" */
.long sys_sysfs /* 135 */
.long sys_personality
.long sys_ni_syscall /* for afs_syscall */
diff --git a/arch/cris/arch-v32/kernel/entry.S b/arch/cris/arch-v32/kernel/entry.S
index 0ecb50b..90e0cc2 100644
--- a/arch/cris/arch-v32/kernel/entry.S
+++ b/arch/cris/arch-v32/kernel/entry.S
@@ -679,7 +679,7 @@ sys_call_table:
.long sys_quotactl
.long sys_getpgid
.long sys_fchdir
- .long sys_bdflush
+ .long sys_ni_syscall /* old "sys_bdflush" */
.long sys_sysfs /* 135 */
.long sys_personality
.long sys_ni_syscall /* for afs_syscall */
diff --git a/arch/frv/kernel/entry.S b/arch/frv/kernel/entry.S
index 63d579b..8932e28 100644
--- a/arch/frv/kernel/entry.S
+++ b/arch/frv/kernel/entry.S
@@ -1323,7 +1323,7 @@ sys_call_table:
.long sys_quotactl
.long sys_getpgid
.long sys_fchdir
- .long sys_bdflush
+ .long sys_ni_syscall /* old "sys_bdflush" */
.long sys_sysfs /* 135 */
.long sys_personality
.long sys_ni_syscall /* for afs_syscall */
diff --git a/arch/h8300/kernel/syscalls.S b/arch/h8300/kernel/syscalls.S
index faefaff..e09bed8 100644
--- a/arch/h8300/kernel/syscalls.S
+++ b/arch/h8300/kernel/syscalls.S
@@ -148,7 +148,7 @@ SYMBOL_NAME_LABEL(sys_call_table)
.long SYMBOL_NAME(sys_quotactl)
.long SYMBOL_NAME(sys_getpgid)
.long SYMBOL_NAME(sys_fchdir)
- .long SYMBOL_NAME(sys_bdflush)
+ .long SYMBOL_NAME(sys_ni_syscall) /* was sys_bdflush */
.long SYMBOL_NAME(sys_sysfs) /* 135 */
.long SYMBOL_NAME(sys_personality)
.long SYMBOL_NAME(sys_ni_syscall) /* for afs_syscall */
diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S
index 6de2e23..df46ffb 100644
--- a/arch/ia64/kernel/entry.S
+++ b/arch/ia64/kernel/entry.S
@@ -1583,7 +1583,7 @@ sys_call_table:
data8 sys_ni_syscall // 1135 /* was: sys_get_kernel_syms */
data8 sys_ni_syscall /* was: sys_query_module */
data8 sys_quotactl
- data8 sys_bdflush
+ data8 sys_ni_syscall /* was: sys_bdflush */
data8 sys_sysfs
data8 sys_personality // 1140
data8 sys_ni_syscall // sys_afs_syscall
diff --git a/arch/m32r/kernel/syscall_table.S b/arch/m32r/kernel/syscall_table.S
index 60536e2..8b197b9 100644
--- a/arch/m32r/kernel/syscall_table.S
+++ b/arch/m32r/kernel/syscall_table.S
@@ -133,7 +133,7 @@ ENTRY(sys_call_table)
.long sys_quotactl
.long sys_getpgid
.long sys_fchdir
- .long sys_bdflush
+ .long sys_ni_syscall /* sys_bdflush syscall holder */
.long sys_sysfs /* 135 */
.long sys_personality
.long sys_ni_syscall /* afs_syscall syscall holder */
diff --git a/arch/m68k/kernel/entry_mm.S b/arch/m68k/kernel/entry_mm.S
index 1559dea..49b280e 100644
--- a/arch/m68k/kernel/entry_mm.S
+++ b/arch/m68k/kernel/entry_mm.S
@@ -544,7 +544,7 @@ sys_call_table:
.long sys_quotactl
.long sys_getpgid
.long sys_fchdir
- .long sys_bdflush
+ .long sys_ni_syscall /* old "sys_bdflush" */
.long sys_sysfs /* 135 */
.long sys_personality
.long sys_ni_syscall /* for afs_syscall */
diff --git a/arch/m68k/kernel/syscalltable.S b/arch/m68k/kernel/syscalltable.S
index 79b1ed1..88be6af 100644
--- a/arch/m68k/kernel/syscalltable.S
+++ b/arch/m68k/kernel/syscalltable.S
@@ -152,7 +152,7 @@ ENTRY(sys_call_table)
.long sys_quotactl
.long sys_getpgid
.long sys_fchdir
- .long sys_bdflush
+ .long sys_ni_syscall /* old "sys_bdflush" */
.long sys_sysfs /* 135 */
.long sys_personality
.long sys_ni_syscall /* for afs_syscall */
diff --git a/arch/microblaze/kernel/syscall_table.S b/arch/microblaze/kernel/syscall_table.S
index e88a930..b25b3e0 100644
--- a/arch/microblaze/kernel/syscall_table.S
+++ b/arch/microblaze/kernel/syscall_table.S
@@ -138,7 +138,7 @@ ENTRY(sys_call_table)
.long sys_quotactl
.long sys_getpgid
.long sys_fchdir
- .long sys_bdflush
+ .long sys_ni_syscall /* old "sys_bdflush" */
.long sys_sysfs /* 135 */
.long sys_personality
.long sys_ni_syscall /* reserved for afs_syscall */
diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index 7f5468b..ee7393d 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -370,7 +370,7 @@ einval: li v0, -ENOSYS
sys sys_quotactl 4
sys sys_getpgid 1
sys sys_fchdir 1
- sys sys_bdflush 2
+ sys sys_ni_syscall 0
sys sys_sysfs 3 /* 4135 */
sys sys_personality 1
sys sys_ni_syscall 0 /* for afs_syscall */
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index 049a9c8..bcf4038 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -338,7 +338,7 @@ sys_call_table:
PTR sys_quotactl
PTR sys_getpgid
PTR sys_fchdir
- PTR sys_bdflush
+ PTR sys_ni_syscall
PTR sys_sysfs /* 4135 */
PTR sys_32_personality
PTR sys_ni_syscall /* for afs_syscall */
diff --git a/arch/mn10300/kernel/entry.S b/arch/mn10300/kernel/entry.S
index fb93ad7..fdaabc7 100644
--- a/arch/mn10300/kernel/entry.S
+++ b/arch/mn10300/kernel/entry.S
@@ -554,7 +554,7 @@ ENTRY(sys_call_table)
.long sys_quotactl
.long sys_getpgid
.long sys_fchdir
- .long sys_bdflush
+ .long sys_ni_syscall /* old "sys_bdflush" */
.long sys_sysfs /* 135 */
.long sys_personality
.long sys_ni_syscall /* reserved for afs_syscall */
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 74867df..4b82982 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -214,7 +214,7 @@
ENTRY_SAME(quotactl)
ENTRY_SAME(getpgid)
ENTRY_SAME(fchdir)
- ENTRY_SAME(bdflush)
+ ENTRY_SAME(ni_syscall)
ENTRY_SAME(sysfs) /* 135 */
ENTRY_OURS(personality)
ENTRY_SAME(ni_syscall) /* for afs_syscall */
diff --git a/arch/powerpc/include/asm/systbl.h b/arch/powerpc/include/asm/systbl.h
index aa0f1eb..22c5d25 100644
--- a/arch/powerpc/include/asm/systbl.h
+++ b/arch/powerpc/include/asm/systbl.h
@@ -137,7 +137,7 @@ SYSCALL(ni_syscall)
SYSCALL(quotactl)
COMPAT_SYS_SPU(getpgid)
SYSCALL_SPU(fchdir)
-SYSCALL_SPU(bdflush)
+SYSCALL_SPU(ni_syscall)
COMPAT_SYS(sysfs)
SYSX_SPU(ppc64_personality,ppc64_personality,sys_personality)
SYSCALL(ni_syscall)
diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S
index 1dc96ea..eecb1dd 100644
--- a/arch/s390/kernel/compat_wrapper.S
+++ b/arch/s390/kernel/compat_wrapper.S
@@ -599,12 +599,6 @@ sys32_fchdir_wrapper:
llgfr %r2,%r2 # unsigned int
jg sys_fchdir # branch to system call

- .globl sys32_bdflush_wrapper
-sys32_bdflush_wrapper:
- lgfr %r2,%r2 # int
- lgfr %r3,%r3 # long
- jg sys_bdflush # branch to system call
-
.globl sys32_sysfs_wrapper
sys32_sysfs_wrapper:
lgfr %r2,%r2 # int
diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S
index 9c65fd4..04d7ae5 100644
--- a/arch/s390/kernel/syscalls.S
+++ b/arch/s390/kernel/syscalls.S
@@ -142,7 +142,7 @@ NI_SYSCALL /* 130: old get_kernel_syms */
SYSCALL(sys_quotactl,sys_quotactl,sys32_quotactl_wrapper)
SYSCALL(sys_getpgid,sys_getpgid,sys32_getpgid_wrapper)
SYSCALL(sys_fchdir,sys_fchdir,sys32_fchdir_wrapper)
-SYSCALL(sys_bdflush,sys_bdflush,sys32_bdflush_wrapper)
+NI_SYSCALL
SYSCALL(sys_sysfs,sys_sysfs,sys32_sysfs_wrapper) /* 135 */
SYSCALL(sys_personality,sys_s390_personality,sys32_personality_wrapper)
NI_SYSCALL /* for afs_syscall */
diff --git a/arch/sh/kernel/syscalls_32.S b/arch/sh/kernel/syscalls_32.S
index 030966a..14d0b63 100644
--- a/arch/sh/kernel/syscalls_32.S
+++ b/arch/sh/kernel/syscalls_32.S
@@ -150,7 +150,7 @@ ENTRY(sys_call_table)
.long sys_quotactl
.long sys_getpgid
.long sys_fchdir
- .long sys_bdflush
+ .long sys_ni_syscall /* old "sys_bdflush" */
.long sys_sysfs /* 135 */
.long sys_personality
.long sys_ni_syscall /* for afs_syscall */
diff --git a/arch/sh/kernel/syscalls_64.S b/arch/sh/kernel/syscalls_64.S
index ca0a614..06d7298 100644
--- a/arch/sh/kernel/syscalls_64.S
+++ b/arch/sh/kernel/syscalls_64.S
@@ -154,7 +154,7 @@ sys_call_table:
.long sys_quotactl
.long sys_getpgid
.long sys_fchdir
- .long sys_bdflush
+ .long sys_ni_syscall /* old "sys_bdflush" */
.long sys_sysfs /* 135 */
.long sys_personality
.long sys_ni_syscall /* for afs_syscall */
diff --git a/arch/sparc/kernel/sys32.S b/arch/sparc/kernel/sys32.S
index 44e5faf..256f7b2 100644
--- a/arch/sparc/kernel/sys32.S
+++ b/arch/sparc/kernel/sys32.S
@@ -79,7 +79,6 @@ SIGN3(sys32_epoll_wait, sys_epoll_wait, %o0, %o2, %o3)
SIGN1(sys32_readahead, compat_sys_readahead, %o0)
SIGN2(sys32_fadvise64, compat_sys_fadvise64, %o0, %o4)
SIGN2(sys32_fadvise64_64, compat_sys_fadvise64_64, %o0, %o5)
-SIGN2(sys32_bdflush, sys_bdflush, %o0, %o1)
SIGN1(sys32_mlockall, sys_mlockall, %o0)
SIGN1(sys32_nfsservctl, compat_sys_nfsservctl, %o0)
SIGN1(sys32_clock_nanosleep, compat_sys_clock_nanosleep, %o1)
diff --git a/arch/sparc/kernel/systbls_32.S b/arch/sparc/kernel/systbls_32.S
index 4b86eaf..224dab6 100644
--- a/arch/sparc/kernel/systbls_32.S
+++ b/arch/sparc/kernel/systbls_32.S
@@ -61,7 +61,7 @@ sys_call_table:
/*210*/ .long sys_fadvise64_64, sys_tgkill, sys_waitpid, sys_swapoff, sys_sysinfo
/*215*/ .long sys_ipc, sys_sigreturn, sys_clone, sys_ioprio_get, sys_adjtimex
/*220*/ .long sys_sigprocmask, sys_ni_syscall, sys_delete_module, sys_ni_syscall, sys_getpgid
-/*225*/ .long sys_bdflush, sys_sysfs, sys_nis_syscall, sys_setfsuid16, sys_setfsgid16
+/*225*/ .long sys_ni_syscall, sys_sysfs, sys_nis_syscall, sys_setfsuid16, sys_setfsgid16
/*230*/ .long sys_select, sys_time, sys_splice, sys_stime, sys_statfs64
/* "We are the Knights of the Forest of Ni!!" */
/*235*/ .long sys_fstatfs64, sys_llseek, sys_mlock, sys_munlock, sys_mlockall
diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S
index 0331baf..72e9a9b 100644
--- a/arch/sparc/kernel/systbls_64.S
+++ b/arch/sparc/kernel/systbls_64.S
@@ -63,7 +63,7 @@ sys_call_table32:
/*210*/ .word sys32_fadvise64_64, sys32_tgkill, sys32_waitpid, sys_swapoff, compat_sys_sysinfo
.word compat_sys_ipc, sys32_sigreturn, sys_clone, sys32_ioprio_get, compat_sys_adjtimex
/*220*/ .word sys32_sigprocmask, sys_ni_syscall, sys32_delete_module, sys_ni_syscall, sys32_getpgid
- .word sys32_bdflush, sys32_sysfs, sys_nis_syscall, sys_setfsuid16, sys_setfsgid16
+ .word sys_ni_syscall, sys32_sysfs, sys_nis_syscall, sys_setfsuid16, sys_setfsgid16
/*230*/ .word sys32_select, compat_sys_time, sys32_splice, compat_sys_stime, compat_sys_statfs64
.word compat_sys_fstatfs64, sys_llseek, sys_mlock, sys_munlock, sys32_mlockall
/*240*/ .word sys_munlockall, sys32_sched_setparam, sys32_sched_getparam, sys32_sched_setscheduler, sys32_sched_getscheduler
@@ -139,7 +139,7 @@ sys_call_table:
/*210*/ .word sys_fadvise64_64, sys_tgkill, sys_waitpid, sys_swapoff, sys_sysinfo
.word sys_sparc_ipc, sys_nis_syscall, sys_clone, sys_ioprio_get, sys_adjtimex
/*220*/ .word sys_nis_syscall, sys_ni_syscall, sys_delete_module, sys_ni_syscall, sys_getpgid
- .word sys_bdflush, sys_sysfs, sys_nis_syscall, sys_setfsuid, sys_setfsgid
+ .word sys_ni_syscall, sys_sysfs, sys_nis_syscall, sys_setfsuid, sys_setfsgid
/*230*/ .word sys_select, sys_nis_syscall, sys_splice, sys_stime, sys_statfs64
.word sys_fstatfs64, sys_llseek, sys_mlock, sys_munlock, sys_mlockall
/*240*/ .word sys_munlockall, sys_sched_setparam, sys_sched_getparam, sys_sched_setscheduler, sys_sched_getscheduler
diff --git a/arch/x86/kernel/syscall_table_32.S b/arch/x86/kernel/syscall_table_32.S
index abce34d..de0ced0 100644
--- a/arch/x86/kernel/syscall_table_32.S
+++ b/arch/x86/kernel/syscall_table_32.S
@@ -133,7 +133,7 @@ ENTRY(sys_call_table)
.long sys_quotactl
.long sys_getpgid
.long sys_fchdir
- .long sys_bdflush
+ .long sys_ni_syscall /* old "sys_bdflush" */
.long sys_sysfs /* 135 */
.long sys_personality
.long sys_ni_syscall /* reserved for afs_syscall */
diff --git a/arch/xtensa/include/asm/unistd.h b/arch/xtensa/include/asm/unistd.h
index 528042c..788adab 100644
--- a/arch/xtensa/include/asm/unistd.h
+++ b/arch/xtensa/include/asm/unistd.h
@@ -459,7 +459,7 @@ __SYSCALL(205, sys_nfsservctl, 3)
#define __NR__sysctl 206
__SYSCALL(206, sys_sysctl, 1)
#define __NR_bdflush 207
-__SYSCALL(207, sys_bdflush, 2)
+__SYSCALL(207, sys_ni_syscall,0)
#define __NR_uname 208
__SYSCALL(208, sys_newuname, 1)
#define __NR_sysinfo 209
diff --git a/fs/buffer.c b/fs/buffer.c
index a08bb8e..9c7b1e5 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -3127,33 +3127,6 @@ out:
EXPORT_SYMBOL(try_to_free_buffers);

/*
- * There are no bdflush tunables left. But distributions are
- * still running obsolete flush daemons, so we terminate them here.
- *
- * Use of bdflush() is deprecated and will be removed in a future kernel.
- * The `flush-X' kernel threads fully replace bdflush daemons and this call.
- */
-SYSCALL_DEFINE2(bdflush, int, func, long, data)
-{
- static int msg_count;
-
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
-
- if (msg_count < 5) {
- msg_count++;
- printk(KERN_INFO
- "warning: process `%s' used the obsolete bdflush"
- " system call\n", current->comm);
- printk(KERN_INFO "Fix your initscripts?\n");
- }
-
- if (func == 1)
- do_exit(0);
- return 0;
-}
-
-/*
* Buffer-head allocation
*/
static struct kmem_cache *bh_cachep;
diff --git a/include/asm-generic/unistd.h b/include/asm-generic/unistd.h
index 07c40d5..cf5c1d2 100644
--- a/include/asm-generic/unistd.h
+++ b/include/asm-generic/unistd.h
@@ -800,7 +800,7 @@ __SYSCALL(__NR_recv, sys_recv)
#define __NR_send 1074
__SYSCALL(__NR_send, sys_send)
#define __NR_bdflush 1075
-__SYSCALL(__NR_bdflush, sys_bdflush)
+__SYSCALL(__NR_bdflush, sys_ni_syscall)
#define __NR_umount 1076
__SYSCALL(__NR_umount, sys_oldumount)
#define __ARCH_WANT_SYS_OLDUMOUNT
diff --git a/include/linux/capability.h b/include/linux/capability.h
index 16ee8b4..ea485a6 100644
--- a/include/linux/capability.h
+++ b/include/linux/capability.h
@@ -248,7 +248,6 @@ struct cpu_vfs_cap_data {
/* Allow examination and configuration of disk quotas */
/* Allow setting the domainname */
/* Allow setting the hostname */
-/* Allow calling bdflush() */
/* Allow mount() and umount(), setting up new smb connection */
/* Allow some autofs root ioctls */
/* Allow nfsservctl */
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 83ecc17..88372fe 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -391,7 +391,6 @@ asmlinkage long sys_pause(void);
asmlinkage long sys_sync(void);
asmlinkage long sys_fsync(unsigned int fd);
asmlinkage long sys_fdatasync(unsigned int fd);
-asmlinkage long sys_bdflush(int func, long data);
asmlinkage long sys_mount(char __user *dev_name, char __user *dir_name,
char __user *type, unsigned long flags,
void __user *data);
diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c
index 25cc41c..6c67e4d 100644
--- a/kernel/sys_ni.c
+++ b/kernel/sys_ni.c
@@ -163,7 +163,6 @@ cond_syscall(compat_sys_move_pages);
cond_syscall(compat_sys_migrate_pages);

/* block-layer dependent */
-cond_syscall(sys_bdflush);
cond_syscall(sys_ioprio_set);
cond_syscall(sys_ioprio_get);

--
1.7.1

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