diff options
| author | Bart Van Assche <bvanassche@acm.org> | 2018-09-26 14:01:03 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2018-09-26 15:11:28 -0600 |
| commit | bca6b067b0b269a7b8ba129e2a918309ca8b4a55 (patch) | |
| tree | 8c41db994ddaf2023d881189cd947fce24f3b7d3 /drivers | |
| parent | 3cfa210bf3fe0803cca17f3775d8cf2360d5f443 (diff) | |
block: Move power management code into a new source file
Move the code for runtime power management from blk-core.c into the
new source file blk-pm.c. Move the corresponding declarations from
<linux/blkdev.h> into <linux/blk-pm.h>. For CONFIG_PM=n, leave out
the declarations of the functions that are not used in that mode.
This patch not only reduces the number of #ifdefs in the block layer
core code but also reduces the size of header file <linux/blkdev.h>
and hence should help to reduce the build time of the Linux kernel
if CONFIG_PM is not defined.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Jianchao Wang <jianchao.w.wang@oracle.com>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/scsi/scsi_pm.c | 1 | ||||
| -rw-r--r-- | drivers/scsi/sd.c | 1 | ||||
| -rw-r--r-- | drivers/scsi/sr.c | 1 |
3 files changed, 3 insertions, 0 deletions
diff --git a/drivers/scsi/scsi_pm.c b/drivers/scsi/scsi_pm.c index b44c1bb687a2..a2b4179bfdf7 100644 --- a/drivers/scsi/scsi_pm.c +++ b/drivers/scsi/scsi_pm.c @@ -8,6 +8,7 @@ #include <linux/pm_runtime.h> #include <linux/export.h> #include <linux/async.h> +#include <linux/blk-pm.h> #include <scsi/scsi.h> #include <scsi/scsi_device.h> diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index b79b366a94f7..64514e8359e4 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -45,6 +45,7 @@ #include <linux/init.h> #include <linux/blkdev.h> #include <linux/blkpg.h> +#include <linux/blk-pm.h> #include <linux/delay.h> #include <linux/mutex.h> #include <linux/string_helpers.h> diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c index d0389b20574d..4f07b3410595 100644 --- a/drivers/scsi/sr.c +++ b/drivers/scsi/sr.c @@ -43,6 +43,7 @@ #include <linux/interrupt.h> #include <linux/init.h> #include <linux/blkdev.h> +#include <linux/blk-pm.h> #include <linux/mutex.h> #include <linux/slab.h> #include <linux/pm_runtime.h> |