diff options
| author | Zhao Lei <zhaolei@cn.fujitsu.com> | 2015-12-18 21:56:08 +0800 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2016-02-16 13:21:45 +0100 |
| commit | 8e9aa51f5405b2a01a44818120116b65a2ba4d3a (patch) | |
| tree | 1f6985d6d270bab63ac448cab99b88ab492fc436 /fs/btrfs/reada.c | |
| parent | c37f49c7ef317fb8043fd28594d1e5d728a1ef89 (diff) | |
btrfs: reada: Add missed segment checking in reada_find_zone
In rechecking zone-in-tree, we still need to check zone include
our logical address.
Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/reada.c')
| -rw-r--r-- | fs/btrfs/reada.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/btrfs/reada.c b/fs/btrfs/reada.c index 74480809be76..7e5d4ac800d9 100644 --- a/fs/btrfs/reada.c +++ b/fs/btrfs/reada.c @@ -303,8 +303,10 @@ static struct reada_zone *reada_find_zone(struct btrfs_fs_info *fs_info, kfree(zone); ret = radix_tree_gang_lookup(&dev->reada_zones, (void **)&zone, logical >> PAGE_CACHE_SHIFT, 1); - if (ret == 1) + if (ret == 1 && logical >= zone->start && logical <= zone->end) kref_get(&zone->refcnt); + else + zone = NULL; } spin_unlock(&fs_info->reada_lock); |