Date: Tue, 25 Oct 2011 14:07:17 +0000 (UTC) From: Pawel Jakub Dawidek <pjd@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r226737 - head/sys/geom Message-ID: <201110251407.p9PE7HHT099110@svn.freebsd.org>
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Author: pjd Date: Tue Oct 25 14:07:17 2011 New Revision: 226737 URL: http://svn.freebsd.org/changeset/base/226737 Log: Allow upper layers to discover than BIO_DELETE and/or BIO_FLUSH is not supported by returning EOPNOTSUPP instead of 0 or ENODEV. MFC after: 3 days Modified: head/sys/geom/geom_disk.c Modified: head/sys/geom/geom_disk.c ============================================================================== --- head/sys/geom/geom_disk.c Tue Oct 25 14:05:39 2011 (r226736) +++ head/sys/geom/geom_disk.c Tue Oct 25 14:07:17 2011 (r226737) @@ -305,7 +305,7 @@ g_disk_start(struct bio *bp) switch(bp->bio_cmd) { case BIO_DELETE: if (!(dp->d_flags & DISKFLAG_CANDELETE)) { - error = 0; + error = EOPNOTSUPP; break; } /* fall-through */ @@ -394,8 +394,8 @@ g_disk_start(struct bio *bp) g_trace(G_T_TOPOLOGY, "g_disk_flushcache(%s)", bp->bio_to->name); if (!(dp->d_flags & DISKFLAG_CANFLUSHCACHE)) { - g_io_deliver(bp, ENODEV); - return; + error = EOPNOTSUPP; + break; } bp2 = g_clone_bio(bp); if (bp2 == NULL) {
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