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authorJosef Bacik <jbacik@fb.com>2015-10-02 15:25:10 -0400
committerChris Mason <clm@fb.com>2015-10-21 18:55:39 -0700
commitc759c4e16179e47e099f491011e6acd7858f8625 (patch)
tree1b97ad895f5546f867d0b12df3910848e69f1016 /fs/btrfs/free-space-cache.c
parenta5e681d9bd641c4f0677e87d3a0c92a8f4f16293 (diff)
downloadtalos-op-linux-c759c4e16179e47e099f491011e6acd7858f8625.tar.gz
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Btrfs: don't keep trying to build clusters if we are fragmented
If we are extremely fragmented then we won't be able to create a free_cluster. So if this happens set last_ptr->fragmented so that all future allcations will give up trying to create a cluster. When we unpin extents we will unset ->fragmented if we free up a sufficient amount of space in a block group. Thanks, Signed-off-by: Josef Bacik <jbacik@fb.com> Signed-off-by: Chris Mason <clm@fb.com>
Diffstat (limited to 'fs/btrfs/free-space-cache.c')
-rw-r--r--fs/btrfs/free-space-cache.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c
index c0eb84ecb78f..a5922e814ada 100644
--- a/fs/btrfs/free-space-cache.c
+++ b/fs/btrfs/free-space-cache.c
@@ -3063,6 +3063,7 @@ void btrfs_init_free_cluster(struct btrfs_free_cluster *cluster)
spin_lock_init(&cluster->refill_lock);
cluster->root = RB_ROOT;
cluster->max_size = 0;
+ cluster->fragmented = false;
INIT_LIST_HEAD(&cluster->block_group_list);
cluster->block_group = NULL;
}
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