diff options
| author | Liu Bo <bo.li.liu@oracle.com> | 2017-06-26 11:34:41 -0600 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2017-07-20 17:43:43 +0200 |
| commit | d0379cc1d0a34313e7436cdc75e418515f9b03fc (patch) | |
| tree | e397ac9c665e41e0bd133956fae9f409f319b6ea /extent-tree.c | |
| parent | 3987fb6f076485e8e63aa279e0d3438084b5dcf4 (diff) | |
Btrfs-progs: fix infinite loop in find_free_extent
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.
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'extent-tree.c')
| -rw-r--r-- | extent-tree.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/extent-tree.c b/extent-tree.c index 75ed94ff..46b8a05c 100644 --- a/extent-tree.c +++ b/extent-tree.c @@ -2611,8 +2611,9 @@ 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: |