diff options
| author | Anshuman Khandual <khandual@linux.vnet.ibm.com> | 2017-04-05 09:21:12 +1000 |
|---|---|---|
| committer | Stephen Rothwell <sfr@canb.auug.org.au> | 2017-04-05 09:21:12 +1000 |
| commit | 5560b2a6eac9664304bbbc280b007e019c491470 (patch) | |
| tree | fe8b03c103925946234b23eff194d9c49a35a637 /mm | |
| parent | bccc07c8529761ea6e0e8609f40c1b3bb8ddc2e0 (diff) | |
| download | linux-next-5560b2a6eac9664304bbbc280b007e019c491470.tar.gz | |
mm/mmap: replace SHM_HUGE_MASK with MAP_HUGE_MASK inside mmap_pgoff
091d0d55b286 ("shm: fix null pointer deref when userspace specifies
invalid hugepage size") had replaced MAP_HUGE_MASK with SHM_HUGE_MASK.
Though both of them contain the same numeric value of 0x3f, MAP_HUGE_MASK
flag sounds more appropriate than the other one in the context. Hence
change it back.
Link: http://lkml.kernel.org/r/20170404045635.616-1-khandual@linux.vnet.ibm.com
Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com>
Reviewed-by: Matthew Wilcox <mawilcox@microsoft.com>
Acked-by: Balbir Singh <bsingharora@gmail.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/mmap.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/mmap.c b/mm/mmap.c index bfbe8856d134..f82741e199c0 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -1479,7 +1479,7 @@ SYSCALL_DEFINE6(mmap_pgoff, unsigned long, addr, unsigned long, len, struct user_struct *user = NULL; struct hstate *hs; - hs = hstate_sizelog((flags >> MAP_HUGE_SHIFT) & SHM_HUGE_MASK); + hs = hstate_sizelog((flags >> MAP_HUGE_SHIFT) & MAP_HUGE_MASK); if (!hs) return -EINVAL; |