Author: tsoome Date: Thu Jul 9 13:19:00 2020 New Revision: 363042 URL: https://svnweb.freebsd.org/changeset/base/363042
Log: loader: setting vdev size based on label asize is not working Because we need to read asize from vdev_tree. We also need to consider different vdev type difference. Reviewed by: allanjude Sponsored by: Netflix, Klara Inc. Differential Revision: https://reviews.freebsd.org/D25586 Modified: head/stand/libsa/zfs/zfsimpl.c Modified: head/stand/libsa/zfs/zfsimpl.c ============================================================================== --- head/stand/libsa/zfs/zfsimpl.c Thu Jul 9 11:06:29 2020 (r363041) +++ head/stand/libsa/zfs/zfsimpl.c Thu Jul 9 13:19:00 2020 (r363042) @@ -1586,6 +1586,57 @@ vdev_label_read(vdev_t *vd, int l, void *buf, uint64_t return (vdev_read_phys(vd, &bp, buf, off, size)); } +static uint64_t +vdev_get_label_asize(nvlist_t *nvl) +{ + nvlist_t *vdevs; + uint64_t asize; + const char *type; + int len; + + asize = 0; + /* Get vdev tree */ + if (nvlist_find(nvl, ZPOOL_CONFIG_VDEV_TREE, DATA_TYPE_NVLIST, + NULL, &vdevs, NULL) != 0) + return (asize); + + /* + * Get vdev type. We will calculate asize for raidz, mirror and disk. + * For raidz, the asize is raw size of all children. + */ + if (nvlist_find(vdevs, ZPOOL_CONFIG_TYPE, DATA_TYPE_STRING, + NULL, &type, &len) != 0) + goto done; + + if (memcmp(type, VDEV_TYPE_MIRROR, len) != 0 && + memcmp(type, VDEV_TYPE_DISK, len) != 0 && + memcmp(type, VDEV_TYPE_RAIDZ, len) != 0) + goto done; + + if (nvlist_find(vdevs, ZPOOL_CONFIG_ASIZE, DATA_TYPE_UINT64, + NULL, &asize, NULL) != 0) + goto done; + + if (memcmp(type, VDEV_TYPE_RAIDZ, len) == 0) { + nvlist_t *kids; + int nkids; + + if (nvlist_find(vdevs, ZPOOL_CONFIG_CHILDREN, + DATA_TYPE_NVLIST_ARRAY, &nkids, &kids, NULL) != 0) { + asize = 0; + goto done; + } + + asize /= nkids; + nvlist_destroy(kids); + } + + asize += VDEV_LABEL_START_SIZE + VDEV_LABEL_END_SIZE; +done: + nvlist_destroy(vdevs); + return (asize); +} + static nvlist_t * vdev_label_read_config(vdev_t *vd, uint64_t txg) { @@ -1631,10 +1682,9 @@ vdev_label_read_config(vdev_t *vd, uint64_t txg) * Use asize from pool config. We need this * because we can get bad value from BIOS. */ - if (nvlist_find(nvl, ZPOOL_CONFIG_ASIZE, - DATA_TYPE_UINT64, NULL, &asize, NULL) == 0) { - vd->v_psize = asize + - VDEV_LABEL_START_SIZE + VDEV_LABEL_END_SIZE; + asize = vdev_get_label_asize(nvl); + if (asize != 0) { + vd->v_psize = asize; } } nvlist_destroy(tmp); _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
