kern/184092: zfs zvol devices are not appearing till after reimport of pool

[Christopher Harrison]

The following reply was made to PR kern/184092; it has been noted by GNATS.

From: Christopher Harrison <harrison at glsan.com>
To: d at delphij.net, freebsd-gnats-submit at FreeBSD.org
Cc: Andriy Gapon <avg at freebsd.org>
Subject: Re: kern/184092: zfs zvol devices are not appearing till after reimport
 of pool
Date: Mon, 27 Jan 2014 14:29:07 -0600

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 I was not able to get the code patch to apply cleanly.   I do support 
 the idea of a devfs hook.   I think the devfs hook is a lot cleaner and 
 reduces the need to make sure the devnode is created/destroyed after 
 every update to the zvols.
 
      -C
 
 On 11/19/13 12:50, Xin Li wrote:
 > -----BEGIN PGP SIGNED MESSAGE-----
 > Hash: SHA512
 >
 > I think Andriy (cc'ed) have fixed a similar issue.  A quick glance at
 > the code suggests maybe we can use something like this:
 >
 >
 > Index: sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ioctl.c
 > ===================================================================
 > - --- sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ioctl.c
 > (revision 258350)
 > +++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ioctl.c
 > (working copy)
 > @@ -3298,6 +3298,10 @@ zfs_ioc_clone(const char *fsname, nvlist_t *innvl,
 >                  if (error != 0)
 >                          (void) dsl_destroy_head(fsname);
 >          }
 > +#ifdef __FreeBSD__
 > +       if (error == 0)
 > +               zvol_create_minors(fsname);
 > +#endif
 >          return (error);
 >   }
 >
 > Can you confirm if this helps?
 >
 > (I think we should use a better way to trigger zvol_create_minor,
 > maybe via a devfs lookup hook?)
 >
 > Cheers,
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 fn:Christopher  Harrison
 n:Harrison;Christopher 
 org:Great Lakes SAN, LLC
 adr;dom:;;518 Holly Ave;Madison;Wi;53711
 email;internet:harrison at glsan.com
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 tel;work:608.347.6967
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