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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-04-11 17:23:52 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-04-11 17:23:52 -0700 |
| commit | b7e70ca9c7d7f049bba8047d7ab49966fd5e9e9d (patch) | |
| tree | f5af8945a6b2f7ee2150420450d980cffd8173d4 /drivers/scsi/scsi.c | |
| parent | 7f8730781830cd38438b10d44d17ccb8eafa9265 (diff) | |
| parent | 3c31b52f96f7b559d950b16113c0f68c72a1985e (diff) | |
| download | linux-b7e70ca9c7d7f049bba8047d7ab49966fd5e9e9d.tar.bz2 | |
Merge branch 'async-scsi-resume' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/isci
Pull async SCSI resume support from Dan Williams:
"Allow disks and other devices to resume in parallel.
This provides a tangible speed up for a non-esoteric use case (laptop
resume):
https://01.org/suspendresume/blogs/tebrandt/2013/hard-disk-resume-optimization-simpler-approach"
* 'async-scsi-resume' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/isci:
scsi: async sd resume
Diffstat (limited to 'drivers/scsi/scsi.c')
| -rw-r--r-- | drivers/scsi/scsi.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c index c4d632c27a3e..88d46fe6bf98 100644 --- a/drivers/scsi/scsi.c +++ b/drivers/scsi/scsi.c @@ -91,6 +91,15 @@ EXPORT_SYMBOL(scsi_logging_level); ASYNC_DOMAIN(scsi_sd_probe_domain); EXPORT_SYMBOL(scsi_sd_probe_domain); +/* + * Separate domain (from scsi_sd_probe_domain) to maximize the benefit of + * asynchronous system resume operations. It is marked 'exclusive' to avoid + * being included in the async_synchronize_full() that is invoked by + * dpm_resume() + */ +ASYNC_DOMAIN_EXCLUSIVE(scsi_sd_pm_domain); +EXPORT_SYMBOL(scsi_sd_pm_domain); + /* NB: These are exposed through /proc/scsi/scsi and form part of the ABI. * You may not alter any existing entry (although adding new ones is * encouraged once assigned by ANSI/INCITS T10 |