[src/trunk]: src/sys/kern explicitly use DEV_BSIZE align for all bmempools

[jdolecek <jdolecek%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/fc4ab0d824c1
branches:  trunk
changeset: 1009060:fc4ab0d824c1
user:      jdolecek <jdolecek%NetBSD.org@localhost>
date:      Sat Apr 11 14:38:26 2020 +0000

description:
explicitly use DEV_BSIZE align for all bmempools

this is required for Xen xbd(4) in order to not have to use bounce buffers

the alignment is implicitly provided when POOL_REDZONE is not active,
this change makes it also aligned when POOL_REDZONE _is_ active - that is
when (!KMSAN && (DIAGNOSTIC || KASAN))

diffstat:

 sys/kern/vfs_bio.c |  6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diffs (27 lines):

diff -r 34e2a02203ce -r fc4ab0d824c1 sys/kern/vfs_bio.c
--- a/sys/kern/vfs_bio.c        Sat Apr 11 11:48:20 2020 +0000
+++ b/sys/kern/vfs_bio.c        Sat Apr 11 14:38:26 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: vfs_bio.c,v 1.291 2020/04/10 17:18:04 ad Exp $ */
+/*     $NetBSD: vfs_bio.c,v 1.292 2020/04/11 14:38:26 jdolecek Exp $   */
 
 /*-
  * Copyright (c) 2007, 2008, 2009, 2019, 2020 The NetBSD Foundation, Inc.
@@ -123,7 +123,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: vfs_bio.c,v 1.291 2020/04/10 17:18:04 ad Exp $");
+__KERNEL_RCSID(0, "$NetBSD: vfs_bio.c,v 1.292 2020/04/11 14:38:26 jdolecek Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_bufcache.h"
@@ -513,7 +513,7 @@
                pa = (size <= PAGE_SIZE && use_std)
                        ? &pool_allocator_nointr
                        : &bufmempool_allocator;
-               pool_init(pp, size, 0, 0, 0, name, pa, IPL_NONE);
+               pool_init(pp, size, 0, DEV_BSIZE, 0, name, pa, IPL_NONE);
                pool_setlowat(pp, 1);
                pool_sethiwat(pp, 1);
        }