aboutsummaryrefslogtreecommitdiffstats
path: root/block/blk-mq-debugfs-zoned.c
diff options
context:
space:
mode:
authorJames Morris <james.morris@microsoft.com>2018-09-04 11:35:54 -0700
committerJames Morris <james.morris@microsoft.com>2018-09-04 11:35:54 -0700
commite42f6f9be4f83c537aa81b4c6239ea94ff5b29ce (patch)
treef956a5ea0e83fc6d0df3e64681e7bbc1f201f3ee /block/blk-mq-debugfs-zoned.c
parentsecurity/capabilities: remove check for -EINVAL (diff)
parentLinux 4.19-rc2 (diff)
downloadlinux-dev-e42f6f9be4f83c537aa81b4c6239ea94ff5b29ce.tar.xz
linux-dev-e42f6f9be4f83c537aa81b4c6239ea94ff5b29ce.zip
Merge tag 'v4.19-rc2' into next-general
Sync to Linux 4.19-rc2 for downstream developers.
Diffstat (limited to '')
-rw-r--r--block/blk-mq-debugfs-zoned.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/block/blk-mq-debugfs-zoned.c b/block/blk-mq-debugfs-zoned.c
new file mode 100644
index 000000000000..fb2c82c351e4
--- /dev/null
+++ b/block/blk-mq-debugfs-zoned.c
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2017 Western Digital Corporation or its affiliates.
+ *
+ * This file is released under the GPL.
+ */
+
+#include <linux/blkdev.h>
+#include "blk-mq-debugfs.h"
+
+int queue_zone_wlock_show(void *data, struct seq_file *m)
+{
+ struct request_queue *q = data;
+ unsigned int i;
+
+ if (!q->seq_zones_wlock)
+ return 0;
+
+ for (i = 0; i < q->nr_zones; i++)
+ if (test_bit(i, q->seq_zones_wlock))
+ seq_printf(m, "%u\n", i);
+
+ return 0;
+}