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Commit 62e2390e authored by Filipe Manana's avatar Filipe Manana Committed by Chris Mason
Browse files

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: default avatarFilipe Manana <fdmanana@suse.com>
Reviewed-by: default avatarSatoru Takeuchi <takeuchi_satoru@jp.fujitsu.com>
Signed-off-by: default avatarChris Mason <clm@fb.com>
parent 7064dd5c

fs/btrfs/ioctl.c

+2 −1
Original line number Diff line number Diff line
@@ -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);