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| author | Hugh Dickins <hugh@veritas.com> | 2007-11-28 18:55:10 +0000 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-11-28 11:04:28 -0800 |
| commit | e84e2e132c9c66d8498e7710d4ea532d1feaaac5 (patch) | |
| tree | f754be23d6b37af04d203eb6e34ac7cdb5f84a4b | |
| parent | 9bfb52ad716e74785b2402b7ea17f30e0344b8e8 (diff) | |
| download | linux-3.10-e84e2e132c9c66d8498e7710d4ea532d1feaaac5.tar.gz linux-3.10-e84e2e132c9c66d8498e7710d4ea532d1feaaac5.tar.bz2 linux-3.10-e84e2e132c9c66d8498e7710d4ea532d1feaaac5.zip | |
tmpfs: restore missing clear_highpage
tmpfs was misconverted to __GFP_ZERO in 2.6.11. There's an unusual case in
which shmem_getpage receives the page from its caller instead of allocating.
We must cover this case by clear_highpage before SetPageUptodate, as before.
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | mm/shmem.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/mm/shmem.c b/mm/shmem.c index 253d205914b..51b3d6ccdda 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -1072,7 +1072,7 @@ shmem_alloc_page(gfp_t gfp, struct shmem_inode_info *info, pvma.vm_policy = mpol_shared_policy_lookup(&info->policy, idx); pvma.vm_pgoff = idx; pvma.vm_end = PAGE_SIZE; - page = alloc_page_vma(gfp | __GFP_ZERO, &pvma, 0); + page = alloc_page_vma(gfp, &pvma, 0); mpol_free(pvma.vm_policy); return page; } @@ -1093,7 +1093,7 @@ shmem_swapin(struct shmem_inode_info *info,swp_entry_t entry,unsigned long idx) static inline struct page * shmem_alloc_page(gfp_t gfp,struct shmem_inode_info *info, unsigned long idx) { - return alloc_page(gfp | __GFP_ZERO); + return alloc_page(gfp); } #endif @@ -1306,6 +1306,7 @@ repeat: info->alloced++; spin_unlock(&info->lock); + clear_highpage(filepage); flush_dcache_page(filepage); SetPageUptodate(filepage); } |