CVS commit: src/sys/arch/xen/x86

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

Module Name:    src
Committed By:   riastradh
Date:           Sat Feb 25 00:32:13 UTC 2023

Modified Files:
        src/sys/arch/xen/x86: xen_intr.c

Log Message:
xen_intr.c: Use kpreempt_disable/enable around access to curcpu().

curcpu() is not otherwise guaranteed to be stable at these points.

While here, nix nonsensical membars.  This need only be synchronized
with interrupts on the same CPU.

Proposed on port-xen:
https://mail-index.netbsd.org/port-xen/2022/07/13/msg010250.html

XXX pullup-8 (in __sti/__cli, __save/restore_flags in include/xen.h)
XXX pullup-9
XXX pullup-10


To generate a diff of this commit:
cvs rdiff -u -r1.30 -r1.31 src/sys/arch/xen/x86/xen_intr.c

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