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authorBart Van Assche <bvanassche@acm.org>2018-09-26 14:01:03 -0700
committerJens Axboe <axboe@kernel.dk>2018-09-26 15:11:28 -0600
commitbca6b067b0b269a7b8ba129e2a918309ca8b4a55 (patch)
tree8c41db994ddaf2023d881189cd947fce24f3b7d3 /drivers/scsi
parent3cfa210bf3fe0803cca17f3775d8cf2360d5f443 (diff)
downloadlinux-bca6b067b0b269a7b8ba129e2a918309ca8b4a55.tar.bz2
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/scsi')
-rw-r--r--drivers/scsi/scsi_pm.c1
-rw-r--r--drivers/scsi/sd.c1
-rw-r--r--drivers/scsi/sr.c1
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>