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https://github.com/S3NEO/android_kernel_samsung_msm8226.git
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d243909074
In the current implementation idling is triggered only by request insertion frequency. This heuristic is not very accurate and may hit random requests that shouldn't trigger idling. This patch uses the PG_readahead flag in struct page's flags, which indicates that the page is part of a readahead window, to start idling upon dispatch of a request associated with a readahead page. The above readehead flag is used together with the existing insertion-frequency trigger. The frequency timer will catch read requests which are not part of a readahead window, but are still part of a sequential stream (and therefore dispatched in small time intervals). Change-Id: Icb7145199c007408de3f267645ccb842e051fd00 Signed-off-by: Lee Susman <lsusman@codeaurora.org> |
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| .. | ||
| partitions | ||
| blk-cgroup.c | ||
| blk-cgroup.h | ||
| blk-core.c | ||
| blk-exec.c | ||
| blk-flush.c | ||
| blk-integrity.c | ||
| blk-ioc.c | ||
| blk-iopoll.c | ||
| blk-lib.c | ||
| blk-map.c | ||
| blk-merge.c | ||
| blk-settings.c | ||
| blk-softirq.c | ||
| blk-sysfs.c | ||
| blk-tag.c | ||
| blk-throttle.c | ||
| blk-timeout.c | ||
| blk.h | ||
| bsg-lib.c | ||
| bsg.c | ||
| cfq-iosched.c | ||
| cfq.h | ||
| compat_ioctl.c | ||
| deadline-iosched.c | ||
| elevator.c | ||
| genhd.c | ||
| ioctl.c | ||
| Kconfig | ||
| Kconfig.iosched | ||
| Makefile | ||
| noop-iosched.c | ||
| partition-generic.c | ||
| row-iosched.c | ||
| scsi_ioctl.c | ||
| test-iosched.c | ||