diff options
| author | Toshi Kani <[email protected]> | 2016-09-23 20:21:56 -0700 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2016-09-24 11:20:01 -0700 |
| commit | 3089bf614c7e2fd441ee001e3ff3d18326f6f091 (patch) | |
| tree | b16cd2c7b0213c55dfe2d8b867e54745b403a861 | |
| parent | 3be7988674ab33565700a37b210f502563d932e6 (diff) | |
shmem: fix tmpfs to handle the huge= option properly
shmem_get_unmapped_area() checks SHMEM_SB(sb)->huge incorrectly, which
leads to a reversed effect of "huge=" mount option.
Fix the check in shmem_get_unmapped_area().
Note, the default value of SHMEM_SB(sb)->huge remains as
SHMEM_HUGE_NEVER. User will need to specify "huge=" option to enable
huge page mappings.
Reported-by: Hillf Danton <[email protected]>
Signed-off-by: Toshi Kani <[email protected]>
Acked-by: Kirill A. Shutemov <[email protected]>
Reviewed-by: Aneesh Kumar K.V <[email protected]>
Signed-off-by: Hugh Dickins <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
| -rw-r--r-- | mm/shmem.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/shmem.c b/mm/shmem.c index fd8b2b5741b1..aec5b492d947 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -1980,7 +1980,7 @@ unsigned long shmem_get_unmapped_area(struct file *file, return addr; sb = shm_mnt->mnt_sb; } - if (SHMEM_SB(sb)->huge != SHMEM_HUGE_NEVER) + if (SHMEM_SB(sb)->huge == SHMEM_HUGE_NEVER) return addr; } |