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| author | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2012-10-19 23:19:19 +0400 |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2012-10-19 23:19:19 +0400 |
| commit | e05dacd71db0a5da7c1a44bcaab2a8a240b9c233 (patch) | |
| tree | 31382cf1c7d62c03126448affb2fc86e8c4aaa8b /arch/x86/lib/usercopy_64.c | |
| parent | 3ab0b83bf6a1e834f4b884150d8012990c75d25d (diff) | |
| parent | ddffeb8c4d0331609ef2581d84de4d763607bd37 (diff) | |
| download | linux-e05dacd71db0a5da7c1a44bcaab2a8a240b9c233.tar.xz | |
Merge commit 'v3.7-rc1' into stable/for-linus-3.7
* commit 'v3.7-rc1': (10892 commits)
Linux 3.7-rc1
x86, boot: Explicitly include autoconf.h for hostprogs
perf: Fix UAPI fallout
ARM: config: make sure that platforms are ordered by option string
ARM: config: sort select statements alphanumerically
UAPI: (Scripted) Disintegrate include/linux/byteorder
UAPI: (Scripted) Disintegrate include/linux
UAPI: Unexport linux/blk_types.h
UAPI: Unexport part of linux/ppp-comp.h
perf: Handle new rbtree implementation
procfs: don't need a PATH_MAX allocation to hold a string representation of an int
vfs: embed struct filename inside of names_cache allocation if possible
audit: make audit_inode take struct filename
vfs: make path_openat take a struct filename pointer
vfs: turn do_path_lookup into wrapper around struct filename variant
audit: allow audit code to satisfy getname requests from its names_list
vfs: define struct filename and have getname() return it
btrfs: Fix compilation with user namespace support enabled
userns: Fix posix_acl_file_xattr_userns gid conversion
userns: Properly print bluetooth socket uids
...
Diffstat (limited to 'arch/x86/lib/usercopy_64.c')
| -rw-r--r-- | arch/x86/lib/usercopy_64.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/lib/usercopy_64.c b/arch/x86/lib/usercopy_64.c index e5b130bc2d0e..05928aae911e 100644 --- a/arch/x86/lib/usercopy_64.c +++ b/arch/x86/lib/usercopy_64.c @@ -18,6 +18,7 @@ unsigned long __clear_user(void __user *addr, unsigned long size) might_fault(); /* no memory constraint because it doesn't change any memory gcc knows about */ + stac(); asm volatile( " testq %[size8],%[size8]\n" " jz 4f\n" @@ -40,6 +41,7 @@ unsigned long __clear_user(void __user *addr, unsigned long size) : [size8] "=&c"(size), [dst] "=&D" (__d0) : [size1] "r"(size & 7), "[size8]" (size / 8), "[dst]"(addr), [zero] "r" (0UL), [eight] "r" (8UL)); + clac(); return size; } EXPORT_SYMBOL(__clear_user); @@ -82,5 +84,6 @@ copy_user_handle_tail(char *to, char *from, unsigned len, unsigned zerorest) for (c = 0, zero_len = len; zerorest && zero_len; --zero_len) if (__put_user_nocheck(c, to++, sizeof(char))) break; + clac(); return len; } |