mirror_zfs/module
Herb Wartens 71d191ef25
Allow MMP to bypass waiting for other threads
At our site we have seen cases when multi-modifier protection is enabled
(multihost=on) on our pool and the pool gets suspended due to a single
disk that is failing and responding very slowly. Our pools have 90 disks
in them and we expect disks to fail. The current version of MMP requires
that we wait for other writers before moving on. When a disk is
responding very slowly, we observed that waiting here was bad enough to
cause the pool to suspend. This change allows the MMP thread to bypass
waiting for other threads and reduces the chances the pool gets
suspended.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Herb Wartens <hawartens@gmail.com>
Closes #14659
2023-04-19 13:22:59 -07:00
..
avl Suppress Clang Static Analyzer false positive in the AVL tree code. 2023-03-08 13:51:21 -08:00
icp Miscellaneous FreBSD compilation bugfixes 2023-04-06 10:35:02 -07:00
lua x86 asm: Replace .align with .balign 2023-01-24 09:04:39 -08:00
nvpair nvpair: Constify string functions 2023-03-14 15:25:50 -07:00
os Linux 6.3 compat: idmapped mount API changes 2023-04-10 14:15:36 -07:00
unicode Illumos #15286: do_composition() needs sign awareness 2023-01-05 11:16:21 -08:00
zcommon Miscellaneous FreBSD compilation bugfixes 2023-04-06 10:35:02 -07:00
zfs Allow MMP to bypass waiting for other threads 2023-04-19 13:22:59 -07:00
zstd Resolve WS-2021-0184 vulnerability in zstd 2023-02-02 15:12:51 -08:00
.gitignore FreeBSD: Ignore symlink to i386 includes 2022-08-02 16:34:23 -07:00
Kbuild.in Implementation of block cloning for ZFS 2023-03-10 11:59:53 -08:00
Makefile.bsd module: resync part of Makefile.bsd 2023-04-10 12:39:43 -07:00
Makefile.in autoconf: use include directives instead of recursing down lib 2022-05-10 10:18:11 -07:00