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Btrfs: use find_or_create_page instead of grab_cache_page

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grab_cache_page will use mapping_gfp_mask(), which for all inodes is set to
GFP_HIGHUSER_MOVABLE.  So instead use find_or_create_page in all cases where we
need GFP_NOFS so we don't deadlock.  Thanks,

Signed-off-by: Josef Bacik <josef@redhat.com>
This commit is contained in:
Josef Bacik
2011-07-11 10:47:06 -04:00
committed by Chris Mason
parent bab39bf998
commit a94733d0bc
5 changed files with 9 additions and 7 deletions
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4
fs/btrfs/free-space-cache.c
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@@ -307,7 +307,7 @@ int __load_free_space_cache(struct btrfs_root *root, struct inode *inode,
if (!num_entries && !num_bitmaps)
break;
page = grab_cache_page(inode->i_mapping, index);
page = find_or_create_page(inode->i_mapping, index, GFP_NOFS);
if (!page)
goto free_cache;
@@ -594,7 +594,7 @@ int __btrfs_write_out_cache(struct btrfs_root *root, struct inode *inode,
* know and don't freak out.
*/
while (index < num_pages) {
page = grab_cache_page(inode->i_mapping, index);
page = find_or_create_page(inode->i_mapping, index, GFP_NOFS);
if (!page) {
int i;