zvol_os: Code cleanup in zvol_create_minor_impl
Nonfunctional changes for readability and consistency. Reviewed-by: Alexander Motin <mav@FreeBSD.org> Reviewed-by: Matt Macy <mmacy@FreeBSD.org> Signed-off-by: Ryan Moeller <ryan@iXsystems.com> Closes #11117
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@ -1259,10 +1259,11 @@ zvol_create_minor_impl(const char *name)
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}
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DROP_GIANT();
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/* lie and say we're read-only */
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error = dmu_objset_own(name, DMU_OST_ZVOL, B_TRUE, B_TRUE, FTAG, &os);
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doi = kmem_alloc(sizeof (dmu_object_info_t), KM_SLEEP);
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/* lie and say we're read-only */
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error = dmu_objset_own(name, DMU_OST_ZVOL, B_TRUE, B_TRUE, FTAG, &os);
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if (error)
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goto out_doi;
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@ -1276,7 +1277,7 @@ zvol_create_minor_impl(const char *name)
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error = dsl_prop_get_integer(name,
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zfs_prop_to_name(ZFS_PROP_VOLMODE), &volmode, NULL);
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if (error != 0 || volmode == ZFS_VOLMODE_DEFAULT)
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if (error || volmode == ZFS_VOLMODE_DEFAULT)
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volmode = zvol_volmode;
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/*
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* zvol_alloc equivalent ...
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@ -1299,7 +1300,6 @@ zvol_create_minor_impl(const char *name)
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gp->start = zvol_geom_bio_start;
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gp->access = zvol_geom_access;
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pp = g_new_providerf(gp, "%s/%s", ZVOL_DRIVER, name);
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/* TODO: NULL check? */
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pp->flags |= G_PF_DIRECT_RECEIVE | G_PF_DIRECT_SEND;
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pp->sectorsize = DEV_BSIZE;
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pp->mediasize = 0;
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@ -1321,9 +1321,9 @@ zvol_create_minor_impl(const char *name)
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args.mda_mode = 0640;
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args.mda_si_drv2 = zv;
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error = make_dev_s(&args, &dev, "%s/%s", ZVOL_DRIVER, name);
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if (error != 0) {
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mutex_destroy(&zv->zv_state_lock);
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if (error) {
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kmem_free(zv->zv_zso, sizeof (struct zvol_state_os));
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mutex_destroy(&zv->zv_state_lock);
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kmem_free(zv, sizeof (*zv));
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dmu_objset_disown(os, B_TRUE, FTAG);
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goto out_giant;
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@ -1351,7 +1351,7 @@ zvol_create_minor_impl(const char *name)
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ASSERT3P(zv->zv_kstat.dk_kstats, ==, NULL);
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dataset_kstats_create(&zv->zv_kstat, zv->zv_objset);
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/* XXX do prefetch */
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/* TODO: prefetch for geom tasting */
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zv->zv_objset = NULL;
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out_dmu_objset_disown:
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