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Diffstat (limited to 'block/blk-mq-debugfs.c')
-rw-r--r--block/blk-mq-debugfs.c37
1 files changed, 34 insertions, 3 deletions
diff --git a/block/blk-mq-debugfs.c b/block/blk-mq-debugfs.c
index b25c76a0cbbc..df9b688b877c 100644
--- a/block/blk-mq-debugfs.c
+++ b/block/blk-mq-debugfs.c
@@ -182,11 +182,19 @@ static const struct file_operations queue_poll_stat_fops = {
.release = single_release,
};
+static const char *const hctx_state_name[] = {
+ [BLK_MQ_S_STOPPED] = "STOPPED",
+ [BLK_MQ_S_TAG_ACTIVE] = "TAG_ACTIVE",
+ [BLK_MQ_S_SCHED_RESTART] = "SCHED_RESTART",
+ [BLK_MQ_S_TAG_WAITING] = "TAG_WAITING",
+
+};
static int hctx_state_show(struct seq_file *m, void *v)
{
struct blk_mq_hw_ctx *hctx = m->private;
- seq_printf(m, "0x%lx\n", hctx->state);
+ blk_flags_show(m, hctx->state, hctx_state_name,
+ ARRAY_SIZE(hctx_state_name));
return 0;
}
@@ -202,11 +210,34 @@ static const struct file_operations hctx_state_fops = {
.release = single_release,
};
+static const char *const alloc_policy_name[] = {
+ [BLK_TAG_ALLOC_FIFO] = "fifo",
+ [BLK_TAG_ALLOC_RR] = "rr",
+};
+
+static const char *const hctx_flag_name[] = {
+ [ilog2(BLK_MQ_F_SHOULD_MERGE)] = "SHOULD_MERGE",
+ [ilog2(BLK_MQ_F_TAG_SHARED)] = "TAG_SHARED",
+ [ilog2(BLK_MQ_F_SG_MERGE)] = "SG_MERGE",
+ [ilog2(BLK_MQ_F_BLOCKING)] = "BLOCKING",
+ [ilog2(BLK_MQ_F_NO_SCHED)] = "NO_SCHED",
+};
+
static int hctx_flags_show(struct seq_file *m, void *v)
{
struct blk_mq_hw_ctx *hctx = m->private;
-
- seq_printf(m, "0x%lx\n", hctx->flags);
+ const int alloc_policy = BLK_MQ_FLAG_TO_ALLOC_POLICY(hctx->flags);
+
+ seq_puts(m, "alloc_policy=");
+ if (alloc_policy < ARRAY_SIZE(alloc_policy_name) &&
+ alloc_policy_name[alloc_policy])
+ seq_puts(m, alloc_policy_name[alloc_policy]);
+ else
+ seq_printf(m, "%d", alloc_policy);
+ seq_puts(m, " ");
+ blk_flags_show(m,
+ hctx->flags ^ BLK_ALLOC_POLICY_TO_MQ_FLAG(alloc_policy),
+ hctx_flag_name, ARRAY_SIZE(hctx_flag_name));
return 0;
}