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-rw-r--r--fs/btrfs/inode.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index fa4b2563dfd7..6747292d437e 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -1801,10 +1801,11 @@ static void btrfs_clear_bit_hook(void *private_data,
u64 len = state->end + 1 - state->start;
u32 num_extents = count_max_extents(len);
- spin_lock(&inode->lock);
- if ((state->state & EXTENT_DEFRAG) && (*bits & EXTENT_DEFRAG))
+ if ((state->state & EXTENT_DEFRAG) && (*bits & EXTENT_DEFRAG)) {
+ spin_lock(&inode->lock);
inode->defrag_bytes -= len;
- spin_unlock(&inode->lock);
+ spin_unlock(&inode->lock);
+ }
/*
* set_bit and clear bit hooks normally require _irqsave/restore