CVS commit: src/sys/kern

["Simon Burge" <simonb%netbsd.org@localhost>]

Module Name:    src
Committed By:   simonb
Date:           Sun Jul 25 06:06:40 UTC 2021

Modified Files:
        src/sys/kern: vfs_bio.c

Log Message:
If we're only doing a count-only kern.buf sysctl, just return the number
of active members in the pool cache (plus some slop) instead of looking
in all the free buffer list.  Should reduce CPU usage for "systat vm"
to << 1% especially for machines with a larger number of buffers.


To generate a diff of this commit:
cvs rdiff -u -r1.300 -r1.301 src/sys/kern/vfs_bio.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.