If the found %ins is crossing a stripe len, ie. BTRFS_STRIPE_LEN, we'd
search again with a stripe-aligned %search_start. The current code
calculates %search_start by adding a wrong offset, in order to fix it, the
start position of the block group should be taken, otherwise, it'll end up
with looking at the same block group forever.
Cc: David Sterba <dsterba@xxxxxxx>
Signed-off-by: Liu Bo <bo.li.liu@xxxxxxxxxx>
---
v2: - enhance commit log with more details.
- fix typo on bg_cache->key.objectid.
extent-tree.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/extent-tree.c b/extent-tree.c
index 3e32e43..2c73d46 100644
--- a/extent-tree.c
+++ b/extent-tree.c
@@ -2614,8 +2614,9 @@ check_failed:
goto no_bg_cache;
bg_offset = ins->objectid - bg_cache->key.objectid;
- search_start = round_up(bg_offset + num_bytes,
- BTRFS_STRIPE_LEN) + bg_offset;
+ search_start = round_up(
+ bg_offset + num_bytes, BTRFS_STRIPE_LEN) +
+ bg_cache->key.objectid;
goto new_group;
}
no_bg_cache:
--
2.5.0
--
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