diff options
author | Ingo Molnar <mingo@kernel.org> | 2018-07-25 11:29:58 +0200 |
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committer | Ingo Molnar <mingo@kernel.org> | 2018-07-25 11:29:58 +0200 |
commit | 4765096f4f7829d933354ddffedfad32cf063467 (patch) | |
tree | e8ab2bfc2062324911de12d034f5d4f222c480b6 /arch/x86/include/asm/uaccess_64.h | |
parent | af0fffd9300b97d8875aa745bc78e2f6fdb3c1f0 (diff) | |
parent | f3d133ee0a17d5694c6f21873eec9863e11fa423 (diff) |
Merge branch 'sched/urgent' into sched/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/include/asm/uaccess_64.h')
-rw-r--r-- | arch/x86/include/asm/uaccess_64.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/x86/include/asm/uaccess_64.h b/arch/x86/include/asm/uaccess_64.h index 62acb613114b..a9d637bc301d 100644 --- a/arch/x86/include/asm/uaccess_64.h +++ b/arch/x86/include/asm/uaccess_64.h @@ -52,7 +52,12 @@ copy_to_user_mcsafe(void *to, const void *from, unsigned len) unsigned long ret; __uaccess_begin(); - ret = memcpy_mcsafe(to, from, len); + /* + * Note, __memcpy_mcsafe() is explicitly used since it can + * handle exceptions / faults. memcpy_mcsafe() may fall back to + * memcpy() which lacks this handling. + */ + ret = __memcpy_mcsafe(to, from, len); __uaccess_end(); return ret; } |