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Date:      Wed, 18 Jul 2012 18:10:28 +0000 (UTC)
From:      Sean Bruno <sbruno@FreeBSD.org>
To:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org
Subject:   svn commit: r238601 - head/sys/dev/aac
Message-ID:  <201207181810.q6IIASs1096858@svn.freebsd.org>

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Author: sbruno
Date: Wed Jul 18 18:10:27 2012
New Revision: 238601
URL: http://svn.freebsd.org/changeset/base/238601

Log:
  On BIO_ERROR, set bio_resid to stop losing data in the error case.
  
  Submitted by:	Mark Johnston <markjdb@gmail.com>
  Reviewed by:	scottl@freebsd.org
  MFC after:	2 weeks

Modified:
  head/sys/dev/aac/aac_disk.c

Modified: head/sys/dev/aac/aac_disk.c
==============================================================================
--- head/sys/dev/aac/aac_disk.c	Wed Jul 18 16:13:03 2012	(r238600)
+++ head/sys/dev/aac/aac_disk.c	Wed Jul 18 18:10:27 2012	(r238601)
@@ -334,8 +334,10 @@ aac_biodone(struct bio *bp)
 {
 	fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
 
-	if (bp->bio_flags & BIO_ERROR)
+	if (bp->bio_flags & BIO_ERROR) {
+		bp->bio_resid = bp->bio_bcount;
 		disk_err(bp, "hard error", -1, 1);
+	}
 
 	biodone(bp);
 }



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