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authorLinus Torvalds <torvalds@linux-foundation.org>2013-11-20 16:05:25 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2013-11-20 16:05:25 -0500
commit6d6e352c80f22c446d933ca8103e02bac1f09129 (patch)
tree248a6a7ebc5ea95986da5bccdd6d75b255cf28e4 /include/uapi/drm/tegra_drm.h
parentb4789b8e6be3151a955ade74872822f30e8cd914 (diff)
parent60aaf933854511630e16be4efe0f96485e132de4 (diff)
Merge tag 'md/3.13' of git://neil.brown.name/md
Pull md update from Neil Brown: "Mostly optimisations and obscure bug fixes. - raid5 gets less lock contention - raid1 gets less contention between normal-io and resync-io during resync" * tag 'md/3.13' of git://neil.brown.name/md: md/raid5: Use conf->device_lock protect changing of multi-thread resources. md/raid5: Before freeing old multi-thread worker, it should flush them. md/raid5: For stripe with R5_ReadNoMerge, we replace REQ_FLUSH with REQ_NOMERGE. UAPI: include <asm/byteorder.h> in linux/raid/md_p.h raid1: Rewrite the implementation of iobarrier. raid1: Add some macros to make code clearly. raid1: Replace raise_barrier/lower_barrier with freeze_array/unfreeze_array when reconfiguring the array. raid1: Add a field array_frozen to indicate whether raid in freeze state. md: Convert use of typedef ctl_table to struct ctl_table md/raid5: avoid deadlock when raid5 array has unack badblocks during md_stop_writes. md: use MD_RECOVERY_INTR instead of kthread_should_stop in resync thread. md: fix some places where mddev_lock return value is not checked. raid5: Retry R5_ReadNoMerge flag when hit a read error. raid5: relieve lock contention in get_active_stripe() raid5: relieve lock contention in get_active_stripe() wait: add wait_event_cmd() md/raid5.c: add proper locking to error path of raid5_start_reshape. md: fix calculation of stacking limits on level change. raid5: Use slow_path to release stripe when mddev->thread is null
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