* [PATCH] Btrfs: add an assert to btrfs_lookup_csums_range for alignment
@ 2013-10-15 13:38 Josef Bacik
0 siblings, 0 replies; only message in thread
From: Josef Bacik @ 2013-10-15 13:38 UTC (permalink / raw)
To: linux-btrfs
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>
---
fs/btrfs/file-item.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c
index 4f53159..ae8a513 100644
--- a/fs/btrfs/file-item.c
+++ b/fs/btrfs/file-item.c
@@ -329,6 +329,9 @@ int btrfs_lookup_csums_range(struct btrfs_root *root, u64 start, u64 end,
u64 csum_end;
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();
if (!path)
return -ENOMEM;
--
1.8.3.1
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2013-10-15 13:38 [PATCH] Btrfs: add an assert to btrfs_lookup_csums_range for alignment Josef Bacik
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