CVS commit: src

["Taylor R Campbell" <riastradh%netbsd.org@localhost>]

Module Name:    src
Committed By:   riastradh
Date:           Sat Feb  1 12:49:02 UTC 2020

Modified Files:
        src/distrib/sets/lists/comp: mi
        src/share/man/man9: Makefile percpu.9
        src/sys/kern: subr_percpu.c
        src/sys/sys: percpu.h

Log Message:
New function percpu_create.

Associates a constructor and destructor with the percpu.  Currently
the constructor runs immediately, but in principle we could use the
same API for future CPU hotplug support.

This lets you sleep for allocation or draining users before
deallocation when setting up or tearing down a percpu -- currently we
have many abuses of percpu_foreach in tree for that purpose.

Proposed on tech-kern:
https://mail-index.NetBSD.org/tech-kern/2020/01/30/msg026036.html


To generate a diff of this commit:
cvs rdiff -u -r1.2307 -r1.2308 src/distrib/sets/lists/comp/mi
cvs rdiff -u -r1.445 -r1.446 src/share/man/man9/Makefile
cvs rdiff -u -r1.12 -r1.13 src/share/man/man9/percpu.9
cvs rdiff -u -r1.20 -r1.21 src/sys/kern/subr_percpu.c
cvs rdiff -u -r1.3 -r1.4 src/sys/sys/percpu.h

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