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| author | Omar Sandoval <osandov@fb.com> | 2017-01-25 19:06:40 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2017-01-27 18:17:44 +0300 |
| commit | 07e4fead45e6e1932f0b960655ab554b6aab6a08 (patch) | |
| tree | 3e3a021a6232494e0492862660b2856368d7a196 /include/linux/blkdev.h | |
| parent | b48fda0976a802e0fe4fc0bedefb7cf380ec6426 (diff) | |
| download | linux-07e4fead45e6e1932f0b960655ab554b6aab6a08.tar.xz | |
blk-mq: create debugfs directory tree
In preparation for putting blk-mq debugging information in debugfs,
create a directory tree mirroring the one in sysfs:
# tree -d /sys/kernel/debug/block
/sys/kernel/debug/block
|-- nvme0n1
| `-- mq
| |-- 0
| | `-- cpu0
| |-- 1
| | `-- cpu1
| |-- 2
| | `-- cpu2
| `-- 3
| `-- cpu3
`-- vda
`-- mq
`-- 0
|-- cpu0
|-- cpu1
|-- cpu2
`-- cpu3
Also add the scaffolding for the actual files that will go in here,
either under the hardware queue or software queue directories.
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'include/linux/blkdev.h')
| -rw-r--r-- | include/linux/blkdev.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 25564857f5f8..0ee283f3cffe 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -571,6 +571,11 @@ struct request_queue { struct list_head tag_set_list; struct bio_set *bio_split; +#ifdef CONFIG_DEBUG_FS + struct dentry *debugfs_dir; + struct dentry *mq_debugfs_dir; +#endif + bool mq_sysfs_init_done; }; |