[GIT PULL] s390 patches for 2.6.34-rc3
From: Martin Schwidefsky
Date: Fri Apr 09 2010 - 10:18:17 EST
Hi Linus,
please pull from 'for-linus' branch of
git://git390.marist.edu/pub/scm/linux-2.6.git for-linus
to receive the following updates:
Christian Borntraeger (1):
[S390] s390: disable change bit override
Dan Carpenter (1):
[S390] sclp_async: potential buffer overflow
Heiko Carstens (1):
[S390] nss: add missing .previous statement to asm function
Julia Lawall (1):
[S390] arch/s390/kernel: Add missing unlock
Martin Schwidefsky (3):
[S390] fix io_return critical section cleanup
[S390] increase default size of vmalloc area
[S390] Update default configuration.
arch/s390/defconfig | 40 +++++++++++++++++++++++++++++---------
arch/s390/include/asm/pgtable.h | 6 ++--
arch/s390/kernel/early.c | 3 +-
arch/s390/kernel/entry.S | 8 ++++++-
arch/s390/kernel/entry64.S | 8 ++++++-
arch/s390/kernel/topology.c | 3 +-
arch/s390/mm/vmem.c | 11 ++-------
drivers/s390/char/sclp_async.c | 2 +-
8 files changed, 55 insertions(+), 26 deletions(-)
diff --git a/arch/s390/defconfig b/arch/s390/defconfig
index 7ae71cc..bcd6884 100644
--- a/arch/s390/defconfig
+++ b/arch/s390/defconfig
@@ -1,7 +1,7 @@
#
# Automatically generated make config: don't edit
-# Linux kernel version: 2.6.33-rc2
-# Mon Jan 4 09:03:07 2010
+# Linux kernel version: 2.6.34-rc3
+# Fri Apr 9 09:57:10 2010
#
CONFIG_SCHED_MC=y
CONFIG_MMU=y
@@ -17,6 +17,7 @@ CONFIG_GENERIC_TIME=y
CONFIG_GENERIC_TIME_VSYSCALL=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_BUG=y
+CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y
CONFIG_NO_IOMEM=y
CONFIG_NO_DMA=y
CONFIG_GENERIC_LOCKBREAK=y
@@ -62,15 +63,11 @@ CONFIG_TREE_RCU=y
# CONFIG_RCU_TRACE is not set
CONFIG_RCU_FANOUT=64
# CONFIG_RCU_FANOUT_EXACT is not set
+# CONFIG_RCU_FAST_NO_HZ is not set
# CONFIG_TREE_RCU_TRACE is not set
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=17
-CONFIG_GROUP_SCHED=y
-CONFIG_FAIR_GROUP_SCHED=y
-# CONFIG_RT_GROUP_SCHED is not set
-CONFIG_USER_SCHED=y
-# CONFIG_CGROUP_SCHED is not set
CONFIG_CGROUPS=y
# CONFIG_CGROUP_DEBUG is not set
CONFIG_CGROUP_NS=y
@@ -79,6 +76,7 @@ CONFIG_CGROUP_NS=y
# CONFIG_CPUSETS is not set
# CONFIG_CGROUP_CPUACCT is not set
# CONFIG_RESOURCE_COUNTERS is not set
+# CONFIG_CGROUP_SCHED is not set
CONFIG_SYSFS_DEPRECATED=y
CONFIG_SYSFS_DEPRECATED_V2=y
# CONFIG_RELAY is not set
@@ -93,6 +91,7 @@ CONFIG_INITRAMFS_SOURCE=""
CONFIG_RD_GZIP=y
CONFIG_RD_BZIP2=y
CONFIG_RD_LZMA=y
+CONFIG_RD_LZO=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
@@ -126,6 +125,7 @@ CONFIG_SLAB=y
# CONFIG_SLUB is not set
# CONFIG_SLOB is not set
# CONFIG_PROFILING is not set
+CONFIG_TRACEPOINTS=y
CONFIG_HAVE_OPROFILE=y
CONFIG_KPROBES=y
CONFIG_HAVE_SYSCALL_WRAPPERS=y
@@ -134,6 +134,7 @@ CONFIG_HAVE_KPROBES=y
CONFIG_HAVE_KRETPROBES=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_USE_GENERIC_SMP_HELPERS=y
+CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
CONFIG_HAVE_DEFAULT_NO_SPIN_MUTEXES=y
#
@@ -246,6 +247,7 @@ CONFIG_64BIT=y
CONFIG_SMP=y
CONFIG_NR_CPUS=32
CONFIG_HOTPLUG_CPU=y
+# CONFIG_SCHED_BOOK is not set
CONFIG_COMPAT=y
CONFIG_SYSVIPC_COMPAT=y
CONFIG_AUDIT_ARCH=y
@@ -345,13 +347,13 @@ CONFIG_PM_SLEEP=y
CONFIG_HIBERNATION=y
CONFIG_PM_STD_PARTITION=""
# CONFIG_PM_RUNTIME is not set
+CONFIG_PM_OPS=y
CONFIG_NET=y
#
# Networking options
#
CONFIG_PACKET=y
-# CONFIG_PACKET_MMAP is not set
CONFIG_UNIX=y
CONFIG_XFRM=y
# CONFIG_XFRM_USER is not set
@@ -529,6 +531,7 @@ CONFIG_NET_SCH_FIFO=y
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_NET_TCPPROBE is not set
+# CONFIG_NET_DROP_MONITOR is not set
CONFIG_CAN=m
CONFIG_CAN_RAW=m
CONFIG_CAN_BCM=m
@@ -605,6 +608,7 @@ CONFIG_MISC_DEVICES=y
#
# SCSI device support
#
+CONFIG_SCSI_MOD=y
# CONFIG_RAID_ATTRS is not set
CONFIG_SCSI=y
# CONFIG_SCSI_DMA is not set
@@ -863,6 +867,7 @@ CONFIG_MISC_FILESYSTEMS=y
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
+# CONFIG_LOGFS is not set
# CONFIG_CRAMFS is not set
# CONFIG_SQUASHFS is not set
# CONFIG_VXFS_FS is not set
@@ -891,6 +896,7 @@ CONFIG_SUNRPC=y
# CONFIG_RPCSEC_GSS_KRB5 is not set
# CONFIG_RPCSEC_GSS_SPKM3 is not set
# CONFIG_SMB_FS is not set
+# CONFIG_CEPH_FS is not set
# CONFIG_CIFS is not set
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
@@ -952,6 +958,7 @@ CONFIG_DEBUG_MUTEXES=y
# CONFIG_LOCK_STAT is not set
CONFIG_DEBUG_SPINLOCK_SLEEP=y
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
+CONFIG_STACKTRACE=y
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=y
# CONFIG_DEBUG_INFO is not set
@@ -973,12 +980,17 @@ CONFIG_DEBUG_FORCE_WEAK_PER_CPU=y
# CONFIG_LATENCYTOP is not set
CONFIG_SYSCTL_SYSCALL_CHECK=y
# CONFIG_DEBUG_PAGEALLOC is not set
+CONFIG_NOP_TRACER=y
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
+CONFIG_RING_BUFFER=y
+CONFIG_EVENT_TRACING=y
+CONFIG_CONTEXT_SWITCH_TRACER=y
+CONFIG_TRACING=y
CONFIG_TRACING_SUPPORT=y
CONFIG_FTRACE=y
# CONFIG_FUNCTION_TRACER is not set
@@ -995,10 +1007,15 @@ CONFIG_BRANCH_PROFILE_NONE=y
# CONFIG_KMEMTRACE is not set
# CONFIG_WORKQUEUE_TRACER is not set
# CONFIG_BLK_DEV_IO_TRACE is not set
+CONFIG_KPROBE_EVENT=y
+# CONFIG_RING_BUFFER_BENCHMARK is not set
# CONFIG_DYNAMIC_DEBUG is not set
CONFIG_SAMPLES=y
+# CONFIG_SAMPLE_TRACEPOINTS is not set
+# CONFIG_SAMPLE_TRACE_EVENTS is not set
# CONFIG_SAMPLE_KOBJECT is not set
# CONFIG_SAMPLE_KPROBES is not set
+# CONFIG_DEBUG_STRICT_USER_COPY_CHECKS is not set
#
# Security options
@@ -1032,6 +1049,7 @@ CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
CONFIG_CRYPTO_GF128MUL=m
# CONFIG_CRYPTO_NULL is not set
+# CONFIG_CRYPTO_PCRYPT is not set
CONFIG_CRYPTO_WORKQUEUE=y
# CONFIG_CRYPTO_CRYPTD is not set
CONFIG_CRYPTO_AUTHENC=m
@@ -1119,7 +1137,7 @@ CONFIG_CRYPTO_SHA512_S390=m
# CONFIG_CRYPTO_DES_S390 is not set
# CONFIG_CRYPTO_AES_S390 is not set
CONFIG_S390_PRNG=m
-# CONFIG_BINARY_PRINTF is not set
+CONFIG_BINARY_PRINTF=y
#
# Library routines
@@ -1136,14 +1154,16 @@ CONFIG_LIBCRC32C=m
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=m
CONFIG_LZO_COMPRESS=m
-CONFIG_LZO_DECOMPRESS=m
+CONFIG_LZO_DECOMPRESS=y
CONFIG_DECOMPRESS_GZIP=y
CONFIG_DECOMPRESS_BZIP2=y
CONFIG_DECOMPRESS_LZMA=y
+CONFIG_DECOMPRESS_LZO=y
CONFIG_NLATTR=y
CONFIG_HAVE_KVM=y
CONFIG_VIRTUALIZATION=y
CONFIG_KVM=m
+# CONFIG_VHOST_NET is not set
CONFIG_VIRTIO=y
CONFIG_VIRTIO_RING=y
CONFIG_VIRTIO_BALLOON=m
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index 9b5b918..89a504c 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -105,7 +105,7 @@ extern char empty_zero_page[PAGE_SIZE];
#ifndef __ASSEMBLY__
/*
* The vmalloc area will always be on the topmost area of the kernel
- * mapping. We reserve 96MB (31bit) / 1GB (64bit) for vmalloc,
+ * mapping. We reserve 96MB (31bit) / 128GB (64bit) for vmalloc,
* which should be enough for any sane case.
* By putting vmalloc at the top, we maximise the gap between physical
* memory and vmalloc to catch misplaced memory accesses. As a side
@@ -120,8 +120,8 @@ extern unsigned long VMALLOC_START;
#define VMALLOC_END 0x7e000000UL
#define VMEM_MAP_END 0x80000000UL
#else /* __s390x__ */
-#define VMALLOC_SIZE (1UL << 30)
-#define VMALLOC_END 0x3e040000000UL
+#define VMALLOC_SIZE (128UL << 30)
+#define VMALLOC_END 0x3e000000000UL
#define VMEM_MAP_END 0x40000000000UL
#endif /* __s390x__ */
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index 31d618a..2d92c2c 100644
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -82,7 +82,8 @@ asm(
" lm 6,15,24(15)\n"
#endif
" br 14\n"
- " .size savesys_ipl_nss, .-savesys_ipl_nss\n");
+ " .size savesys_ipl_nss, .-savesys_ipl_nss\n"
+ " .previous\n");
static __initdata char upper_command_line[COMMAND_LINE_SIZE];
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S
index 4348f9b..6af7045 100644
--- a/arch/s390/kernel/entry.S
+++ b/arch/s390/kernel/entry.S
@@ -964,7 +964,7 @@ cleanup_critical:
clc 4(4,%r12),BASED(cleanup_table_io_work_loop)
bl BASED(0f)
clc 4(4,%r12),BASED(cleanup_table_io_work_loop+4)
- bl BASED(cleanup_io_return)
+ bl BASED(cleanup_io_work_loop)
0:
br %r14
@@ -1039,6 +1039,12 @@ cleanup_sysc_leave_insn:
cleanup_io_return:
mvc __LC_RETURN_PSW(4),0(%r12)
+ mvc __LC_RETURN_PSW+4(4),BASED(cleanup_table_io_return)
+ la %r12,__LC_RETURN_PSW
+ br %r14
+
+cleanup_io_work_loop:
+ mvc __LC_RETURN_PSW(4),0(%r12)
mvc __LC_RETURN_PSW+4(4),BASED(cleanup_table_io_work_loop)
la %r12,__LC_RETURN_PSW
br %r14
diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S
index 29fd0f1..52106d5 100644
--- a/arch/s390/kernel/entry64.S
+++ b/arch/s390/kernel/entry64.S
@@ -946,7 +946,7 @@ cleanup_critical:
clc 8(8,%r12),BASED(cleanup_table_io_work_loop)
jl 0f
clc 8(8,%r12),BASED(cleanup_table_io_work_loop+8)
- jl cleanup_io_return
+ jl cleanup_io_work_loop
0:
br %r14
@@ -1021,6 +1021,12 @@ cleanup_sysc_leave_insn:
cleanup_io_return:
mvc __LC_RETURN_PSW(8),0(%r12)
+ mvc __LC_RETURN_PSW+8(8),BASED(cleanup_table_io_return)
+ la %r12,__LC_RETURN_PSW
+ br %r14
+
+cleanup_io_work_loop:
+ mvc __LC_RETURN_PSW(8),0(%r12)
mvc __LC_RETURN_PSW+8(8),BASED(cleanup_table_io_work_loop)
la %r12,__LC_RETURN_PSW
br %r14
diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c
index 14ef6f0..247b4c2 100644
--- a/arch/s390/kernel/topology.c
+++ b/arch/s390/kernel/topology.c
@@ -165,10 +165,11 @@ static void tl_to_cores(struct tl_info *info)
default:
clear_cores();
machine_has_topology = 0;
- return;
+ goto out;
}
tle = next_tle(tle);
}
+out:
spin_unlock_irq(&topology_lock);
}
diff --git a/arch/s390/mm/vmem.c b/arch/s390/mm/vmem.c
index 8ea3144..90165e7 100644
--- a/arch/s390/mm/vmem.c
+++ b/arch/s390/mm/vmem.c
@@ -71,12 +71,8 @@ static pte_t __ref *vmem_pte_alloc(void)
pte = alloc_bootmem(PTRS_PER_PTE * sizeof(pte_t));
if (!pte)
return NULL;
- if (MACHINE_HAS_HPAGE)
- clear_table((unsigned long *) pte, _PAGE_TYPE_EMPTY | _PAGE_CO,
- PTRS_PER_PTE * sizeof(pte_t));
- else
- clear_table((unsigned long *) pte, _PAGE_TYPE_EMPTY,
- PTRS_PER_PTE * sizeof(pte_t));
+ clear_table((unsigned long *) pte, _PAGE_TYPE_EMPTY,
+ PTRS_PER_PTE * sizeof(pte_t));
return pte;
}
@@ -117,8 +113,7 @@ static int vmem_add_mem(unsigned long start, unsigned long size, int ro)
if (MACHINE_HAS_HPAGE && !(address & ~HPAGE_MASK) &&
(address + HPAGE_SIZE <= start + size) &&
(address >= HPAGE_SIZE)) {
- pte_val(pte) |= _SEGMENT_ENTRY_LARGE |
- _SEGMENT_ENTRY_CO;
+ pte_val(pte) |= _SEGMENT_ENTRY_LARGE;
pmd_val(*pm_dir) = pte_val(pte);
address += HPAGE_SIZE - PAGE_SIZE;
continue;
diff --git a/drivers/s390/char/sclp_async.c b/drivers/s390/char/sclp_async.c
index 2aecf7f..7ad30e7 100644
--- a/drivers/s390/char/sclp_async.c
+++ b/drivers/s390/char/sclp_async.c
@@ -85,7 +85,7 @@ static int proc_handler_callhome(struct ctl_table *ctl, int write,
rc = copy_from_user(buf, buffer, sizeof(buf));
if (rc != 0)
return -EFAULT;
- buf[len - 1] = '\0';
+ buf[sizeof(buf) - 1] = '\0';
if (strict_strtoul(buf, 0, &val) != 0)
return -EINVAL;
if (val != 0 && val != 1)
--
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