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Btrfs: add an assert to btrfs_lookup_csums_range for alignment

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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: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
This commit is contained in:
Josef Bacik 2013-10-15 09:36:40 -04:00 • committed by Chris Mason
parent ed9e8af88e
commit 4277a9c3b3
1 changed files with 3 additions and 0 deletions
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3
fs/btrfs/file-item.c
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@ -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;