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| author | Stephen Bates <sbates@raithlin.com> | 2017-04-20 16:59:11 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2017-04-20 17:10:48 -0600 |
| commit | 0206319fdfee7c36b97aa6c0561bab206132f813 (patch) | |
| tree | b7338a78b1162079ed46003cadb5206d7672e235 /block/blk-mq-debugfs.c | |
| parent | b00c53e8f411a0b2be036c41852c6858541afbf7 (diff) | |
| download | linux-0-day-0206319fdfee7c36b97aa6c0561bab206132f813.tar.gz linux-0-day-0206319fdfee7c36b97aa6c0561bab206132f813.tar.xz | |
blk-mq: Fix poll_stat for new size-based bucketing.
Fixes an issue where the size of the poll_stat array in request_queue
does not match the size expected by the new size based bucketing for
IO completion polling.
Fixes: 720b8ccc4500 ("blk-mq: Add a polling specific stats function")
Signed-off-by: Stephen Bates <sbates@raithlin.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'block/blk-mq-debugfs.c')
| -rw-r--r-- | block/blk-mq-debugfs.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/block/blk-mq-debugfs.c b/block/blk-mq-debugfs.c index df9b688b877c0..3057641d5d152 100644 --- a/block/blk-mq-debugfs.c +++ b/block/blk-mq-debugfs.c @@ -159,14 +159,17 @@ static void print_stat(struct seq_file *m, struct blk_rq_stat *stat) static int queue_poll_stat_show(struct seq_file *m, void *v) { struct request_queue *q = m->private; + int bucket; - seq_puts(m, "read: "); - print_stat(m, &q->poll_stat[READ]); - seq_puts(m, "\n"); + for (bucket = 0; bucket < BLK_MQ_POLL_STATS_BKTS/2; bucket++) { + seq_printf(m, "read (%d Bytes): ", 1 << (9+bucket)); + print_stat(m, &q->poll_stat[2*bucket]); + seq_puts(m, "\n"); - seq_puts(m, "write: "); - print_stat(m, &q->poll_stat[WRITE]); - seq_puts(m, "\n"); + seq_printf(m, "write (%d Bytes): ", 1 << (9+bucket)); + print_stat(m, &q->poll_stat[2*bucket+1]); + seq_puts(m, "\n"); + } return 0; } |