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| author | Bart Van Assche <bart.vanassche@wdc.com> | 2018-06-15 23:55:21 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2018-07-09 17:07:52 +0200 |
| commit | 6a5ac9846508ad7d1d23881d9d5add35f2e6ae71 (patch) | |
| tree | c0386ecdda510c941829913bba55aa68085a92b3 /block/blk-mq-debugfs.h | |
| parent | block: Inline blk_queue_nr_zones() (diff) | |
| download | linux-6a5ac9846508ad7d1d23881d9d5add35f2e6ae71.tar.xz linux-6a5ac9846508ad7d1d23881d9d5add35f2e6ae71.zip | |
block: Make struct request_queue smaller for CONFIG_BLK_DEV_ZONED=n
Exclude zoned block device members from struct request_queue for
CONFIG_BLK_DEV_ZONED == n. Avoid breaking the build by only building
the code that uses these struct request_queue members if
CONFIG_BLK_DEV_ZONED != n.
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com>
Cc: Matias Bjorling <mb@lightnvm.io>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-mq-debugfs.h')
| -rw-r--r-- | block/blk-mq-debugfs.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/block/blk-mq-debugfs.h b/block/blk-mq-debugfs.h index b9d366e57097..a9160be12be0 100644 --- a/block/blk-mq-debugfs.h +++ b/block/blk-mq-debugfs.h @@ -80,4 +80,13 @@ static inline void blk_mq_debugfs_unregister_sched_hctx(struct blk_mq_hw_ctx *hc } #endif +#ifdef CONFIG_BLK_DEBUG_FS_ZONED +int queue_zone_wlock_show(void *data, struct seq_file *m); +#else +static inline int queue_zone_wlock_show(void *data, struct seq_file *m) +{ + return 0; +} +#endif + #endif |