Device scanning waits on the uuid_mutex, which can result in a very long
wait if dev delete is shrinking the device.
Signed-off-by: Carey Underwood <cwi...@cwillu.com>
---
fs/btrfs/volumes.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 5cce6aa..996af00 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -1468,7 +1468,9 @@ int btrfs_rm_device(struct btrfs_root *root, char
*device_path)
clear_super = true;
}
+ mutex_unlock(&uuid_mutex);
ret = btrfs_shrink_device(device, 0);
+ mutex_lock(&uuid_mutex);
if (ret)
goto error_undo;
--
1.7.0.4
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