sync discard

Jens Axboe linux-block linux-xfs 1 version Apr 30, 2018 In review

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v1 Latest Apr 30, 20182 patches 24 repliesIn review

Patches in v1 No applies recorded yet

#	Subject and files	Size	Replies	Applied
1/2	block: add BLKDEV_DISCARD_SYNC flag`block/blk-lib.c` `include/linux/blkdev.h`	+25 -9	0 replies
2/2	xfs: add 'discard_sync' mount flag`fs/xfs/xfs_log_cil.c` `fs/xfs/xfs_mount.h` `fs/xfs/xfs_super.c`	+21 -5	22 replies

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Cover letter [PATCHSET 0/2] sync discard

We recently had a pretty severe perf regression with the XFS async discard. This small series add a SYNC issue discard flag, and also limits the chain size for sync discards. Patch 2 adds support for reverting XFS back to doign sync discards.

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Jens Axboe

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