diff options
Diffstat (limited to 'fs/btrfs/inode.c')
-rw-r--r-- | fs/btrfs/inode.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 3cc5677f544..3a6f953337b 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c | |||
@@ -4909,10 +4909,21 @@ again: | |||
4909 | goto again; | 4909 | goto again; |
4910 | } | 4910 | } |
4911 | 4911 | ||
4912 | /* | ||
4913 | * XXX - page_mkwrite gets called every time the page is dirtied, even | ||
4914 | * if it was already dirty, so for space accounting reasons we need to | ||
4915 | * clear any delalloc bits for the range we are fixing to save. There | ||
4916 | * is probably a better way to do this, but for now keep consistent with | ||
4917 | * prepare_pages in the normal write path. | ||
4918 | */ | ||
4919 | clear_extent_bits(&BTRFS_I(inode)->io_tree, page_start, page_end, | ||
4920 | EXTENT_DIRTY | EXTENT_DELALLOC, GFP_NOFS); | ||
4921 | |||
4912 | ret = btrfs_set_extent_delalloc(inode, page_start, page_end); | 4922 | ret = btrfs_set_extent_delalloc(inode, page_start, page_end); |
4913 | if (ret) { | 4923 | if (ret) { |
4914 | unlock_extent(io_tree, page_start, page_end, GFP_NOFS); | 4924 | unlock_extent(io_tree, page_start, page_end, GFP_NOFS); |
4915 | ret = VM_FAULT_SIGBUS; | 4925 | ret = VM_FAULT_SIGBUS; |
4926 | btrfs_free_reserved_data_space(root, inode, PAGE_CACHE_SIZE); | ||
4916 | goto out_unlock; | 4927 | goto out_unlock; |
4917 | } | 4928 | } |
4918 | ret = 0; | 4929 | ret = 0; |