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Brian Bunker 480c7ffec0 scsi: core: Allow the ALUA transitioning state enough time 
[ Upstream commit 54249306e2 ]

The error path for the SCSI check condition of not ready, target in ALUA
state transition, will result in the failure of that path after the retries
are exhausted. In most cases that is well ahead of the transition timeout
established in the SCSI ALUA device handler.

Instead, reprep the command and re-add it to the queue after a 1 second
delay. This will allow the handler to take care of the timeout and only
fail the path if the target has exceeded the transition expiry timeout
(default 60 seconds). If the expiry timeout is exceeded, the handler will
change the path state from transitioning to standby leading to a path
failure eliminating the potential of this re-prep to continue endlessly. In
most cases the target will exit the transitioning state well before the
expiry timeout but after the retries are exhausted as mentioned.

Additionally remove the scsi_io_completion_reprep() function which provides
little value.

Link: https://lore.kernel.org/r/20220729214110.58576-1-brian@purestorage.com
Reviewed-by: Martin Wilck <mwilck@suse.com>
Acked-by: Krishna Kant <krishna.kant@purestorage.com>
Acked-by: Seamus Connor <sconnor@purestorage.com>
Signed-off-by: Brian Bunker <brian@purestorage.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2022-09-15 10:47:08 +02:00
arch arm64/kexec: Fix missing extra range for crashkres_low. 2022-09-08 11:24:06 +02:00
block blk-mq: fix io hung due to missing commit_rqs 2022-08-31 17:18:19 +02:00
certs certs: make system keyring depend on x509 parser 2022-07-24 12:53:55 -07:00
crypto KEYS: asymmetric: enforce SM2 signature use pkey algo 2022-08-17 15:16:17 +02:00
Documentation rtla: Fix tracer name 2022-09-05 10:31:31 +02:00
drivers scsi: core: Allow the ALUA transitioning state enough time 2022-09-15 10:47:08 +02:00
fs cifs: fix small mempool leak in SMB2_negotiate() 2022-09-08 11:24:02 +02:00
include fs: only do a memory barrier for the first set_buffer_uptodate() 2022-09-15 10:47:07 +02:00
init arm64: fix rodata=full 2022-08-31 17:18:19 +02:00
io_uring io_uring: fix issue with io_write() not always undoing sb_start_write() 2022-08-31 17:18:17 +02:00
ipc ipc: Free mq_sysctls if ipc namespace creation failed 2022-06-22 17:47:41 -05:00
kernel bpf: Do mark_chain_precision for ARG_CONST_ALLOC_SIZE_OR_ZERO 2022-09-08 11:23:58 +02:00
lib crypto: lib - remove unneeded selection of XOR_BLOCKS 2022-09-05 10:31:26 +02:00
LICENSES LICENSES/LGPL-2.1: Add LGPL-2.1-or-later as valid identifiers 2021-12-16 14:33:10 +01:00
mm Revert "mm: kmemleak: take a full lowmem check in kmemleak_*_phys()" 2022-09-15 10:47:07 +02:00
net net: mac802154: Fix a condition in the receive path 2022-09-08 11:24:07 +02:00
samples sample: bpf: xdp_router_ipv4: Allow the kernel to send arp requests 2022-08-17 15:14:25 +02:00
scripts kbuild: dummy-tools: avoid tmpdir leak in dummy gcc 2022-08-29 11:07:58 +02:00
security landlock: Fix file reparenting without explicit LANDLOCK_ACCESS_FS_REFER 2022-09-08 11:24:02 +02:00
sound ALSA: seq: Fix data-race at module auto-loading 2022-09-08 11:24:07 +02:00
tools landlock: Fix file reparenting without explicit LANDLOCK_ACCESS_FS_REFER 2022-09-08 11:24:02 +02:00
usr Not a lot of material this cycle. Many singleton patches against various 2022-05-27 11:22:03 -07:00
virt KVM: Unconditionally get a ref to /dev/kvm module when creating a VM 2022-08-25 11:45:05 +02:00
.clang-format clang-format: Fix space after for_each macros 2022-05-20 19:27:16 +02:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore Opt out of scripts/get_maintainer.pl 2019-05-16 10:53:40 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore kbuild: split the second line of *.mod into *.usyms 2022-05-08 03:16:59 +09:00
.mailmap ARM: SoC fixes for 5.19, part 4 2022-07-27 09:43:07 -07:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: mark ARM/PALM TREO SUPPORT orphan 2022-07-07 15:17:00 +02:00
Kbuild kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS io_uring: move to separate directory 2022-08-17 15:14:20 +02:00
Makefile Linux 5.19.8 2022-09-08 11:24:08 +02:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.