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| author | Rasmus Villemoes <linux@rasmusvillemoes.dk> | 2014-06-04 16:07:58 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-06-04 16:54:03 -0700 |
| commit | 23c8902d403ef9a04cdc367d0b76a3ed6d83f5c5 (patch) | |
| tree | 060556fb56a1357f2d0a9cc017c6d15327488545 | |
| parent | f7f28ca98b9a7a99fc55df2dddcf49857ab004f0 (diff) | |
| download | lwn-23c8902d403ef9a04cdc367d0b76a3ed6d83f5c5.tar.gz lwn-23c8902d403ef9a04cdc367d0b76a3ed6d83f5c5.zip | |
mm: constify nmask argument to set_mempolicy()
The nmask argument to set_mempolicy() is const according to the user-space
header numaif.h, and since the kernel does indeed not modify it, it might
as well be declared const in the kernel.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | include/linux/syscalls.h | 2 | ||||
| -rw-r--r-- | mm/mempolicy.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index bfef0be279dd..b0881a0ed322 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -711,7 +711,7 @@ asmlinkage long sys_keyctl(int cmd, unsigned long arg2, unsigned long arg3, asmlinkage long sys_ioprio_set(int which, int who, int ioprio); asmlinkage long sys_ioprio_get(int which, int who); -asmlinkage long sys_set_mempolicy(int mode, unsigned long __user *nmask, +asmlinkage long sys_set_mempolicy(int mode, const unsigned long __user *nmask, unsigned long maxnode); asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode, const unsigned long __user *from, diff --git a/mm/mempolicy.c b/mm/mempolicy.c index 727187f1155b..b09586d8316b 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -1383,7 +1383,7 @@ SYSCALL_DEFINE6(mbind, unsigned long, start, unsigned long, len, } /* Set the process memory policy */ -SYSCALL_DEFINE3(set_mempolicy, int, mode, unsigned long __user *, nmask, +SYSCALL_DEFINE3(set_mempolicy, int, mode, const unsigned long __user *, nmask, unsigned long, maxnode) { int err; |