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-rw-r--r--fs/btrfs/inode.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 141df0c..6ef97c1 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -3111,6 +3111,8 @@ void btrfs_run_delayed_iputs(struct btrfs_root *root)
if (empty)
return;
+ down_read(&fs_info->delayed_iput_sem);
+
spin_lock(&fs_info->delayed_iput_lock);
list_splice_init(&fs_info->delayed_iputs, &list);
spin_unlock(&fs_info->delayed_iput_lock);
@@ -3121,6 +3123,8 @@ void btrfs_run_delayed_iputs(struct btrfs_root *root)
iput(delayed->inode);
kfree(delayed);
}
+
+ up_read(&root->fs_info->delayed_iput_sem);
}
/*
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