CVS commit: src/sys/arch/alpha/alpha

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

Module Name:    src
Committed By:   riastradh
Date:           Sat Apr  9 23:36:22 UTC 2022

Modified Files:
        src/sys/arch/alpha/alpha: pmap.c

Log Message:
alpha: Omit needless membar in pmap_reference.

If the pmap is published enough for us to obtain a reference to it
then there's no membar needed.  If it's not then something else is
wrong and we can't use pmap_reference here anyway.  Membars are
needed only on the destruction side to make sure all use, by any
thread, happens-before all freeing in the last user thread.


To generate a diff of this commit:
cvs rdiff -u -r1.305 -r1.306 src/sys/arch/alpha/alpha/pmap.c

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