From: Liu Bo <[email protected]>
[ Upstream commit 28785f70ef882e4798cd5706066a55dbf7adf80e ]
We commit transaction in order to reclaim space from pinned bytes because
it could process delayed refs, and in may_commit_transaction(), we check
first if pinned bytes are enough for the required space, we then check if
that plus bytes reserved for delayed insert are enough for the required
space.
This changes the code to the above logic.
Fixes: b150a4f10d87 ("Btrfs: use a percpu to keep track of possibly pinned
bytes")
Tested-by: Nikolay Borisov <[email protected]>
Reported-by: Nikolay Borisov <[email protected]>
Reviewed-by: Nikolay Borisov <[email protected]>
Signed-off-by: Liu Bo <[email protected]>
Signed-off-by: David Sterba <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
fs/btrfs/extent-tree.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index a29730c44850..f9d87903ef48 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -4818,7 +4818,7 @@ static int may_commit_transaction(struct btrfs_root *root,
spin_lock(&delayed_rsv->lock);
if (percpu_counter_compare(&space_info->total_bytes_pinned,
- bytes - delayed_rsv->size) >= 0) {
+ bytes - delayed_rsv->size) < 0) {
spin_unlock(&delayed_rsv->lock);
return -ENOSPC;
}
--
2.15.1
