mirror_zfs/module
Alexander Motin 6e41aca519 Trust ARC_BUF_SHARED() more
In my understanding ARC_BUF_SHARED() and arc_buf_is_shared() should
return identical results, except the second also asserts it deeper.
The first is much cheaper though, saving few pointer dereferences.
Replace production arc_buf_is_shared() calls with ARC_BUF_SHARED(),
and call arc_buf_is_shared() in random assertions, while making it
even more strict.

On my tests this in half reduces arc_buf_destroy_impl() time, that
noticeably reduces hash_lock congestion under heavy dbuf eviction.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: George Wilson <george.wilson@delphix.com>
Signed-off-by:	Alexander Motin <mav@FreeBSD.org>
Sponsored by:	iXsystems, Inc.
Closes #15397
2023-11-06 16:47:05 -08:00
..
avl Suppress Clang Static Analyzer false positive in the AVL tree code. 2023-03-08 13:51:21 -08:00
icp Add BTI landing pads to the AArch64 SHA2 assembly 2023-10-04 12:36:21 -07:00
lua Add loongarch64 support 2023-04-25 16:05:45 -07:00
nvpair nvpair: Constify string functions 2023-03-14 15:25:50 -07:00
os FreeBSD: taskq: Remove unused declaration 2023-11-06 16:46:32 -08:00
unicode Illumos #15286: do_composition() needs sign awareness 2023-01-05 11:16:21 -08:00
zcommon set autotrim default to 'off' everywhere 2023-07-21 16:35:12 -07:00
zfs Trust ARC_BUF_SHARED() more 2023-11-06 16:47:05 -08:00
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 linux: implement filesystem-side copy/clone functions 2023-07-26 08:46:58 -07:00
Makefile.bsd Finally drop long disabled vdev cache. 2023-06-09 12:40:55 -07:00
Makefile.in check-zstd-symbols: also ignore __pfx_ symbols 2023-09-19 08:52:06 -07:00