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Date:      Sun, 12 Apr 2020 05:10:48 +0000 (UTC)
From:      Konstantin Belousov <kib@FreeBSD.org>
To:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org
Subject:   svn commit: r359818 - head/sys/kern
Message-ID:  <202004120510.03C5AmVN073354@repo.freebsd.org>

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Author: kib
Date: Sun Apr 12 05:10:48 2020
New Revision: 359818
URL: https://svnweb.freebsd.org/changeset/base/359818

Log:
  sendfile_iodone: correct calculation of the page index for relookup.
  
  This is yet another bug in r359473.
  
  Reported and tested by:	delphij
  Sponsored by:	The FreeBSD Foundation
  MFC after:	2 weeks

Modified:
  head/sys/kern/kern_sendfile.c

Modified: head/sys/kern/kern_sendfile.c
==============================================================================
--- head/sys/kern/kern_sendfile.c	Sun Apr 12 03:10:29 2020	(r359817)
+++ head/sys/kern/kern_sendfile.c	Sun Apr 12 05:10:48 2020	(r359818)
@@ -298,7 +298,7 @@ sendfile_iodone(void *arg, vm_page_t *pa, int count, i
 		for (i = 0; i < count; i++) {
 			if (pa[i] == bogus_page) {
 				pa[i] = vm_page_relookup(sfio->obj,
-				    sfio->pindex0 + i + (sfio->pa - pa));
+				    sfio->pindex0 + i + (pa - sfio->pa));
 				KASSERT(pa[i] != NULL,
 				    ("%s: page %p[%d] disappeared",
 				    __func__, pa, i));



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