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authorFilipe Manana <fdmanana@gmail.com>2014-06-09 06:48:05 +0400
committerChris Mason <clm@fb.com>2014-06-10 04:21:16 +0400
commit7ffbb598a059b73487909619d73150f99b50337a (patch)
treeba975f1810eb340b07143eea3a284861cad0ff4b /fs/btrfs/ctree.h
parentcd857dd6bc2ae9ecea14e75a34e8a8fdc158e307 (diff)
downloadlinux-7ffbb598a059b73487909619d73150f99b50337a.tar.xz
Btrfs: make fsync work after cloning into a file
When cloning into a file, we were correctly replacing the extent items in the target range and removing the extent maps. However we weren't replacing the extent maps with new ones that point to the new extents - as a consequence, an incremental fsync (when the inode doesn't have the full sync flag) was a NOOP, since it relies on the existence of extent maps in the modified list of the inode's extent map tree, which was empty. Therefore add new extent maps to reflect the target clone range. A test case for xfstests follows. Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com> Signed-off-by: Chris Mason <clm@fb.com>
Diffstat (limited to 'fs/btrfs/ctree.h')
-rw-r--r--fs/btrfs/ctree.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index af523d695432..b7e2c1c1ef36 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -3749,6 +3749,12 @@ int btrfs_csum_one_bio(struct btrfs_root *root, struct inode *inode,
struct bio *bio, u64 file_start, int contig);
int btrfs_lookup_csums_range(struct btrfs_root *root, u64 start, u64 end,
struct list_head *list, int search_commit);
+void btrfs_extent_item_to_extent_map(struct inode *inode,
+ const struct btrfs_path *path,
+ struct btrfs_file_extent_item *fi,
+ const bool new_inline,
+ struct extent_map *em);
+
/* inode.c */
struct btrfs_delalloc_work {
struct inode *inode;