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authorFilipe Manana <fdmanana@suse.com>2014-08-08 02:47:06 +0100
committerChris Mason <clm@fb.com>2014-08-21 07:55:26 -0700
commit62e2390e1ad78f956e96a6a831761adc6f2bf58a (patch)
tree293bff9b4dcc58b928271a36a0421455aaf07ee1 /fs/btrfs
parent7064dd5c36187725e7ccfd837e07678ae435d3f5 (diff)
Btrfs: clone, don't create invalid hole extent map
When cloning a file that consists of an inline extent, we were creating an extent map that represents a non-existing trailing hole starting at a file offset that isn't a multiple of the sector size. This happened because when processing an inline extent we weren't aligning the extent's length to the sector size, and therefore incorrectly treating the range [inline_extent_length; sector_size[ as a hole. Signed-off-by: Filipe Manana <fdmanana@suse.com> Reviewed-by: Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com> Signed-off-by: Chris Mason <clm@fb.com>
Diffstat (limited to 'fs/btrfs')
-rw-r--r--fs/btrfs/ioctl.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 845287ca59c3..fce6fd0e3f50 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -3494,7 +3494,8 @@ process_slot:
btrfs_mark_buffer_dirty(leaf);
btrfs_release_path(path);
- last_dest_end = new_key.offset + datal;
+ last_dest_end = ALIGN(new_key.offset + datal,
+ root->sectorsize);
ret = clone_finish_inode_update(trans, inode,
last_dest_end,
destoff, olen);