diff options
| author | Hugh Dickins <hugh@veritas.com> | 2007-11-28 18:55:10 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2007-12-14 09:50:53 -0800 |
| commit | 831ac1f2cd32ee3271cca477705f823947233ec3 (patch) | |
| tree | 1cde79eb3953dd3e5d6ed3921ce4ee0422c804f8 /mm/shmem.c | |
| parent | d57b4ae3d48871e50eef320a12bd3698a67f4eed (diff) | |
tmpfs: restore missing clear_highpage
patch e84e2e132c9c66d8498e7710d4ea532d1feaaac5 in mainline
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'mm/shmem.c')
| -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 95558e498fae..4622ffad5dc5 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -1071,7 +1071,7 @@ 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; } @@ -1091,7 +1091,7 @@ 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 @@ -1304,6 +1304,7 @@ repeat: info->alloced++; spin_unlock(&info->lock); + clear_highpage(filepage); flush_dcache_page(filepage); SetPageUptodate(filepage); } |