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authorOmar Sandoval <osandov@fb.com>2017-05-04 00:31:34 -0700
committerJens Axboe <axboe@fb.com>2017-05-04 08:25:17 -0600
commitdaaadb3e9453ab89c2e113a2d1df8e19e30944cc (patch)
tree4a72782bd1b32dd4b0757e993644ff98b7cbc9d5 /block/blk-mq-debugfs.c
parent16b738f651c83a01db057e5db02ec4b830af9130 (diff)
downloadlinux-daaadb3e9453ab89c2e113a2d1df8e19e30944cc.tar.bz2
mq-deadline: add debugfs attributes
Expose the fifo lists, cached next requests, batching state, and dispatch list. It'd also be possible to add the sorted lists, but there aren't already seq_file helpers for rbtrees. Signed-off-by: Omar Sandoval <osandov@fb.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'block/blk-mq-debugfs.c')
-rw-r--r--block/blk-mq-debugfs.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/block/blk-mq-debugfs.c b/block/blk-mq-debugfs.c
index 8ec738f872e5..803aed4d7221 100644
--- a/block/blk-mq-debugfs.c
+++ b/block/blk-mq-debugfs.c
@@ -267,9 +267,8 @@ static const char *const rqf_name[] = {
};
#undef RQF_NAME
-int blk_mq_debugfs_rq_show(struct seq_file *m, void *v)
+int __blk_mq_debugfs_rq_show(struct seq_file *m, struct request *rq)
{
- struct request *rq = list_entry_rq(v);
const struct blk_mq_ops *const mq_ops = rq->q->mq_ops;
const unsigned int op = rq->cmd_flags & REQ_OP_MASK;
@@ -291,6 +290,12 @@ int blk_mq_debugfs_rq_show(struct seq_file *m, void *v)
seq_puts(m, "}\n");
return 0;
}
+EXPORT_SYMBOL_GPL(__blk_mq_debugfs_rq_show);
+
+int blk_mq_debugfs_rq_show(struct seq_file *m, void *v)
+{
+ return __blk_mq_debugfs_rq_show(m, list_entry_rq(v));
+}
EXPORT_SYMBOL_GPL(blk_mq_debugfs_rq_show);
static void *hctx_dispatch_start(struct seq_file *m, loff_t *pos)