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| author | Huang Shijie <shijie8@gmail.com> | 2009-09-22 04:03:36 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-09-22 18:17:41 +0400 |
| commit | cdf7b3418ad5a8783efe8f9124023d9b869fec0f (patch) | |
| tree | 0504a26ba5d7cbbaa71bdd2911d55c6934de8be5 /mm/mmap.c | |
| parent | 03f6462a3ae78f36eb1f0ee8b4d5ae2f7859c1d5 (diff) | |
| download | linux-cdf7b3418ad5a8783efe8f9124023d9b869fec0f.tar.xz | |
mmap: remove unnecessary code
If (flags & MAP_LOCKED) is true, it means vm_flags has already contained
the bit VM_LOCKED which is set by calc_vm_flag_bits().
So there is no need to reset it again, just remove it.
Signed-off-by: Huang Shijie <shijie8@gmail.com>
Acked-by: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/mmap.c')
| -rw-r--r-- | mm/mmap.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/mm/mmap.c b/mm/mmap.c index 6eed98c00543..56eb871c32d0 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -963,11 +963,9 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr, vm_flags = calc_vm_prot_bits(prot) | calc_vm_flag_bits(flags) | mm->def_flags | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC; - if (flags & MAP_LOCKED) { + if (flags & MAP_LOCKED) if (!can_do_mlock()) return -EPERM; - vm_flags |= VM_LOCKED; - } /* mlock MCL_FUTURE? */ if (vm_flags & VM_LOCKED) { |