Author: smh
Date: Sat Mar 14 17:35:04 2015
New Revision: 279996
URL: https://svnweb.freebsd.org/changeset/base/279996
Log:
Allow zvol_geom_worker to process BIO_DELETE's
If zvol_geom_start is called with a BIO_DELETE from a thread which can
sleep it queues it for later processing by the zvol_geom_worker. The
zvol_geom_worker didn't have a delete case so would simply loose the bio
hence preventing the original caller from every completing. In addition
an other unknown types would suffer the same fate.
Allow zvol_geom_worker to process BIO_DELETE's via zvol_strategy and
return unsupported for all unknown bio types.
MFC after: 2 weeks
Sponsored by: Multiplay
Modified:
head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zvol.c
Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zvol.c
==============================================================================
--- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zvol.c Sat Mar 14
17:25:17 2015 (r279995)
+++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zvol.c Sat Mar 14
17:35:04 2015 (r279996)
@@ -2775,8 +2775,12 @@ zvol_geom_worker(void *arg)
break;
case BIO_READ:
case BIO_WRITE:
+ case BIO_DELETE:
zvol_strategy(bp);
break;
+ default:
+ g_io_deliver(bp, EOPNOTSUPP);
+ break;
}
}
}
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