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| author | Christoph Hellwig <hch@lst.de> | 2021-08-09 16:17:43 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-08-09 11:53:23 -0600 |
| commit | edb0872f44ec9976ea6d052cb4b93cd2d23ac2ba (patch) | |
| tree | 077c52abab520da5223f99729c41dc0119f73b4b /block/blk-cgroup.c | |
| parent | 1008162b2782a3624d12b0aee8da58bc75d12e19 (diff) | |
| download | linux-edb0872f44ec9976ea6d052cb4b93cd2d23ac2ba.tar.gz | |
block: move the bdi from the request_queue to the gendisk
The backing device information only makes sense for file system I/O, and thus belongs into the gendisk and not the lower level request_queue structure. Move it there. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Link: https://lore.kernel.org/r/20210809141744.1203023-5-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-cgroup.c')
| -rw-r--r-- | block/blk-cgroup.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c index 575d7a2e7203..db034e35ae20 100644 --- a/block/blk-cgroup.c +++ b/block/blk-cgroup.c @@ -489,10 +489,9 @@ static int blkcg_reset_stats(struct cgroup_subsys_state *css, const char *blkg_dev_name(struct blkcg_gq *blkg) { - /* some drivers (floppy) instantiate a queue w/o disk registered */ - if (blkg->q->backing_dev_info->dev) - return bdi_dev_name(blkg->q->backing_dev_info); - return NULL; + if (!queue_has_disk(blkg->q) || !queue_to_disk(blkg->q)->bdi->dev) + return NULL; + return bdi_dev_name(queue_to_disk(blkg->q)->bdi); } /** |