commit bc6d15e22d3b37df55df53412d6493ca8fa9b066
Author: Matthew Dillon <[email protected]>
Date: Thu Feb 27 10:41:08 2020 -0800
kernel - Refactor vfs_cache ncp->nc_refs
* Refactor namecache->nc_refs to use atomic_fetchadd_int() instead
of atomic_fcmp_set(), which really helps in heavily contended
situations.
This is accomplished by having a ref for every possible access point,
so that the 1->0 transition can lead directly to termination without
requiring further surgery.
Summary of changes:
sys/kern/vfs_cache.c | 417 ++++++++++++++++++++++++++++-----------------------
1 file changed, 233 insertions(+), 184 deletions(-)
http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/bc6d15e22d3b37df55df53412d6493ca8fa9b066
--
DragonFly BSD source repository
