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-rw-r--r--fs/xfs/xfs_sync.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/xfs/xfs_sync.c b/fs/xfs/xfs_sync.c
index e61fc1519073..97304f10e78a 100644
--- a/fs/xfs/xfs_sync.c
+++ b/fs/xfs/xfs_sync.c
@@ -359,6 +359,15 @@ xfs_quiesce_attr(
* added an item to the AIL, thus flush it again.
*/
xfs_ail_push_all_sync(mp->m_ail);
+
+ /*
+ * The superblock buffer is uncached and xfsaild_push() will lock and
+ * set the XBF_ASYNC flag on the buffer. We cannot do xfs_buf_iowait()
+ * here but a lock on the superblock buffer will block until iodone()
+ * has completed.
+ */
+ xfs_buf_lock(mp->m_sb_bp);
+ xfs_buf_unlock(mp->m_sb_bp);
}
static void
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