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Commit 4277a9c3 authored by Josef Bacik's avatar Josef Bacik Committed by Chris Mason
Browse files

Btrfs: add an assert to btrfs_lookup_csums_range for alignment 



I was hitting weird issues when trying to remove hole extents and it turned out
it was because I was sending non-aligned offsets down to
btrfs_lookup_csums_range.  So add an assert for this in case somebody trips over
this in the future.  Thanks,

Signed-off-by: default avatarJosef Bacik <jbacik@fusionio.com>
Signed-off-by: default avatarChris Mason <chris.mason@fusionio.com>
parent ed9e8af8

fs/btrfs/file-item.c

+3 −0
Original line number Original line Diff line number Diff line
@@ -329,6 +329,9 @@ int btrfs_lookup_csums_range(struct btrfs_root *root, u64 start, u64 end, 
	u64 csum_end;

	u64 csum_end;

	u16 csum_size = btrfs_super_csum_size(root->fs_info->super_copy);

	u16 csum_size = btrfs_super_csum_size(root->fs_info->super_copy);





	ASSERT(start == ALIGN(start, root->sectorsize) &&

	       (end + 1) == ALIGN(end + 1, root->sectorsize));



	path = btrfs_alloc_path();

	path = btrfs_alloc_path();

	if (!path)

	if (!path)

		return -ENOMEM;

		return -ENOMEM;