diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-12-14 10:58:17 -0800 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-12-14 10:58:17 -0800 |
commit | 2a4c32edd39b7de166e723b1991abcde4db3a701 (patch) | |
tree | 1eba8e303e19d0f8fa0874f4514f87ebac82ae5c /drivers/md/dm-io.c | |
parent | b9f98bd4034a3196ff068eb0fa376c5f41077480 (diff) | |
parent | 20737738d397dfadbca1ea50dcc00d7259f500cf (diff) | |
download | linux-2a4c32edd39b7de166e723b1991abcde4db3a701.tar.bz2 |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md
Pull MD updates from Shaohua Li:
- a raid5 writeback cache feature.
The goal is to aggregate writes to make full stripe write and reduce
read-modify-write. It's helpful for workload which does sequential
write and follows fsync for example. This feature is experimental and
off by default right now.
- FAILFAST support.
This fails IOs to broken raid disks quickly, so can improve latency.
It's mainly for DASD storage, but some patches help normal raid array
too.
- support bad block for raid array with external metadata
- AVX2 instruction support for raid6 parity calculation
- normalize MD info output
- add missing blktrace
- other bug fixes
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md: (66 commits)
md: separate flags for superblock changes
md: MD_RECOVERY_NEEDED is set for mddev->recovery
md: takeover should clear unrelated bits
md/r5cache: after recovery, increase journal seq by 10000
md/raid5-cache: fix crc in rewrite_data_only_stripes()
md/raid5-cache: no recovery is required when create super-block
md: fix refcount problem on mddev when stopping array.
md/r5cache: do r5c_update_log_state after log recovery
md/raid5-cache: adjust the write position of the empty block if no data blocks
md/r5cache: run_no_space_stripes() when R5C_LOG_CRITICAL == 0
md/raid5: limit request size according to implementation limits
md/raid5-cache: do not need to set STRIPE_PREREAD_ACTIVE repeatedly
md/raid5-cache: remove the unnecessary next_cp_seq field from the r5l_log
md/raid5-cache: release the stripe_head at the appropriate location
md/raid5-cache: use ring add to prevent overflow
md/raid5-cache: remove unnecessary function parameters
raid5-cache: don't set STRIPE_R5C_PARTIAL_STRIPE flag while load stripe into cache
raid5-cache: add another check conditon before replaying one stripe
md/r5cache: enable IRQs on error path
md/r5cache: handle alloc_page failure
...
Diffstat (limited to 'drivers/md/dm-io.c')
0 files changed, 0 insertions, 0 deletions