kernel.git/drivers/md/raid5-ppl.c, branch linux-5.6.y

treewide: Use sizeof_field() macro

2019-12-09T18:36:44Z

Replace all the occurrences of FIELD_SIZEOF() with sizeof_field() except at places where these are defined. Later patches will remove the unused definition of FIELD_SIZEOF(). This patch is generated using following script: EXCLUDE_FILES="include/linux/stddef.h|include/linux/kernel.h" git grep -l -e "\bFIELD_SIZEOF\b" | while read file; do if [[ "$file" =~ $EXCLUDE_FILES ]]; then continue fi sed -i -e 's/\bFIELD_SIZEOF\b/sizeof_field/g' $file; done Signed-off-by: Pankaj Bharadiya Link: https://lore.kernel.org/r/20190924105839.110713-3-pankaj.laxminarayan.bharadiya@intel.com Co-developed-by: Kees Cook Signed-off-by: Kees Cook Acked-by: David Miller # for net

drivers/md/raid5-ppl.c: use the new spelling of RWH_WRITE_LIFE_NOT_SET

2019-11-14T22:59:15Z

As it is consistent with prefixes of other write life time hints. Signed-off-by: Eugene Syromiatnikov Signed-off-by: Song Liu

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288

2019-06-05T15:36:37Z

Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms and conditions of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 263 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Alexios Zavras Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141901.208660670@linutronix.de Signed-off-by: Greg Kroah-Hartman

Merge tag 'for-5.1/block-post-20190315' of git://git.kernel.dk/linux-block

2019-03-16T19:36:39Z

Pull more block layer changes from Jens Axboe: "This is a collection of both stragglers, and fixes that came in after I finalized the initial pull. This contains: - An MD pull request from Song, with a few minor fixes - Set of NVMe patches via Christoph - Pull request from Konrad, with a few fixes for xen/blkback - pblk fix IO calculation fix (Javier) - Segment calculation fix for pass-through (Ming) - Fallthrough annotation for blkcg (Mathieu)" * tag 'for-5.1/block-post-20190315' of git://git.kernel.dk/linux-block: (25 commits) blkcg: annotate implicit fall through nvme-tcp: support C2HData with SUCCESS flag nvmet: ignore EOPNOTSUPP for discard nvme: add proper write zeroes setup for the multipath device nvme: add proper discard setup for the multipath device nvme: remove nvme_ns_config_oncs nvme: disable Write Zeroes for qemu controllers nvmet-fc: bring Disconnect into compliance with FC-NVME spec nvmet-fc: fix issues with targetport assoc_list list walking nvme-fc: reject reconnect if io queue count is reduced to zero nvme-fc: fix numa_node when dev is null nvme-fc: use nr_phys_segments to determine existence of sgl nvme-loop: init nvmet_ctrl fatal_err_work when allocate nvme: update comment to make the code easier to read nvme: put ns_head ref if namespace fails allocation nvme-trace: fix cdw10 buffer overrun nvme: don't warn on block content change effects nvme: add get-feature to admin cmds tracer md: Fix failed allocation of md_register_thread It's wrong to add len to sector_nr in raid10 reshape twice ...

raid5: set write hint for PPL

2019-03-12T17:15:18Z

When the Partial Parity Log is enabled, circular buffer is used to store PPL data. Each write to RAID device causes overwrite of data in this buffer so some write_hint can be set to those request to help drives handle garbage collection. This patch adds new sysfs attribute which can be used to specify which write_hint should be assigned to PPL. Acked-by: Guoqing Jiang Signed-off-by: Mariusz Dabrowski Signed-off-by: Song Liu

md: convert to kvmalloc

2019-03-12T17:04:02Z

The code really just wants a big flat buffer, so just do that. Link: http://lkml.kernel.org/r/20181217131929.11727-3-kent.overstreet@gmail.com Signed-off-by: Kent Overstreet Reviewed-by: Matthew Wilcox Cc: Shaohua Li Cc: Alexey Dobriyan Cc: Al Viro Cc: Dave Hansen Cc: Eric Paris Cc: Marcelo Ricardo Leitner Cc: Neil Horman Cc: Paul Moore Cc: Pravin B Shelar Cc: Stephen Smalley Cc: Vlad Yasevich Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

md: convert to bioset_init()/mempool_init()

2018-05-30T21:33:32Z

Convert md to embedded bio sets. Signed-off-by: Kent Overstreet Signed-off-by: Jens Axboe

raid5-ppl: fix handling flush requests

2018-02-21T17:40:40Z

Add missing bio completion. Without this any flush request would hang. Fixes: 1532d9e87e8b ("raid5-ppl: PPL support for disks with write-back cache enabled") Signed-off-by: Artur Paszkiewicz Signed-off-by: Shaohua Li

raid5-ppl: PPL support for disks with write-back cache enabled

2018-01-15T22:29:42Z

In order to provide data consistency with PPL for disks with write-back cache enabled all data has to be flushed to disks before next PPL entry. The disks to be flushed are marked in the bitmap. It's modified under a mutex and it's only read after PPL io unit is submitted. A limitation of 64 disks in the array has been introduced to keep data structures and implementation simple. RAID5 arrays with so many disks are not likely due to high risk of multiple disks failure. Such restriction should not be a real life limitation. With write-back cache disabled next PPL entry is submitted when data write for current one completes. Data flush defers next log submission so trigger it when there are no stripes for handling found. As PPL assures all data is flushed to disk at request completion, just acknowledge flush request when PPL is enabled. Signed-off-by: Tomasz Majchrzak Signed-off-by: Shaohua Li

raid5-ppl: check recovery_offset when performing ppl recovery

2017-10-17T02:06:34Z

If starting an array that is undergoing rebuild, make ppl recovery honor the recovery_offset of a member disk and don't read data that is not yet in-sync. Signed-off-by: Artur Paszkiewicz Signed-off-by: Shaohua Li