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-rw-r--r--fs/ocfs2/dlmglue.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c
index 33fbdc823278..359524b7341f 100644
--- a/fs/ocfs2/dlmglue.c
+++ b/fs/ocfs2/dlmglue.c
@@ -16,6 +16,7 @@
#include <linux/debugfs.h>
#include <linux/seq_file.h>
#include <linux/time.h>
+#include <linux/delay.h>
#include <linux/quotaops.h>
#include <linux/sched/signal.h>
@@ -3912,6 +3913,17 @@ downconvert:
spin_unlock_irqrestore(&lockres->l_lock, flags);
ret = ocfs2_downconvert_lock(osb, lockres, new_level, set_lvb,
gen);
+ /* The dlm lock convert is being cancelled in background,
+ * ocfs2_cancel_convert() is asynchronous in fs/dlm,
+ * requeue it, try again later.
+ */
+ if (ret == -EBUSY) {
+ ctl->requeue = 1;
+ mlog(ML_BASTS, "lockres %s, ReQ: Downconvert busy\n",
+ lockres->l_name);
+ ret = 0;
+ msleep(20);
+ }
leave:
if (ret)