From: kettenis <kettenis@openbsd.org>
Date: Wed, 2 Aug 2023 19:58:52 +0000 (+0000)
Subject: Set a low water mark on scsi_xfer_pool and prime the pool.  This way there
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=10c9f1ae28ead3e8d2381bb2f8f341ab5d734aa3;p=openbsd

Set a low water mark on scsi_xfer_pool and prime the pool.  This way there
will always be some scsi_xfer structures around.  Hopefully that means the
pagedaemon can actually write out pages to swap if we're out of physical
memory.

ok krw@
---

diff --git a/sys/scsi/scsi_base.c b/sys/scsi/scsi_base.c
index 559df94fcfb..110b49628ab 100644
--- a/sys/scsi/scsi_base.c
+++ b/sys/scsi/scsi_base.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: scsi_base.c,v 1.282 2023/07/06 10:17:43 visa Exp $	*/
+/*	$OpenBSD: scsi_base.c,v 1.283 2023/08/02 19:58:52 kettenis Exp $	*/
 /*	$NetBSD: scsi_base.c,v 1.43 1997/04/02 02:29:36 mycroft Exp $	*/
 
 /*
@@ -138,6 +138,8 @@ scsi_init(void)
 	/* Initialize the scsi_xfer pool. */
 	pool_init(&scsi_xfer_pool, sizeof(struct scsi_xfer), 0, IPL_BIO, 0,
 	    "scxspl", NULL);
+	pool_setlowat(&scsi_xfer_pool, 8);
+	pool_prime(&scsi_xfer_pool, 8);
 	pool_init(&scsi_plug_pool, sizeof(struct scsi_plug), 0, IPL_BIO, 0,
 	    "scsiplug", NULL);
 }