Date: Mon, 9 Jan 2017 17:05:40 +0000 (UTC) From: Marius Strobl <marius@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r311793 - head/sys/dev/mmc Message-ID: <201701091705.v09H5ePE083109@repo.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: marius Date: Mon Jan 9 17:05:39 2017 New Revision: 311793 URL: https://svnweb.freebsd.org/changeset/base/311793 Log: In mmcsd_task(), bio_resid was not being set to 0 on a successful read or write, resulting in random short-read and short-write returns for requests. Fixing this fixes nominal block I/O via mmcsd(4). Obtained from: DragonFlyBSD (fd4b97583be1a1e57234713c25f6e81bc0411cb0) MFC after: 5 days Modified: head/sys/dev/mmc/mmcsd.c Modified: head/sys/dev/mmc/mmcsd.c ============================================================================== --- head/sys/dev/mmc/mmcsd.c Mon Jan 9 17:04:51 2017 (r311792) +++ head/sys/dev/mmc/mmcsd.c Mon Jan 9 17:05:39 2017 (r311793) @@ -545,6 +545,8 @@ mmcsd_task(void *arg) bp->bio_error = EIO; bp->bio_resid = (end - block) * sz; bp->bio_flags |= BIO_ERROR; + } else { + bp->bio_resid = 0; } biodone(bp); }
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201701091705.v09H5ePE083109>