Author: tsoome
Date: Sun Nov  3 13:25:47 2019
New Revision: 354283
URL: https://svnweb.freebsd.org/changeset/base/354283

Log:
  loader: we do not support booting from pool with log device
  
  If pool has log device, stop there and tell about it.

Modified:
  head/stand/libsa/zfs/zfs.c
  head/stand/libsa/zfs/zfsimpl.c
  head/sys/cddl/boot/zfs/zfsimpl.h

Modified: head/stand/libsa/zfs/zfs.c
==============================================================================
--- head/stand/libsa/zfs/zfs.c  Sun Nov  3 13:03:47 2019        (r354282)
+++ head/stand/libsa/zfs/zfs.c  Sun Nov  3 13:25:47 2019        (r354283)
@@ -668,6 +668,11 @@ zfs_dev_open(struct open_file *f, ...)
                spa = spa_find_by_guid(dev->pool_guid);
        if (!spa)
                return (ENXIO);
+       if (spa->spa_with_log) {
+               printf("Reading pool %s is not supported due to log device.\n",
+                   spa->spa_name);
+               return (ENXIO);
+       }
        mount = malloc(sizeof(*mount));
        if (mount == NULL)
                return (ENOMEM);

Modified: head/stand/libsa/zfs/zfsimpl.c
==============================================================================
--- head/stand/libsa/zfs/zfsimpl.c      Sun Nov  3 13:03:47 2019        
(r354282)
+++ head/stand/libsa/zfs/zfsimpl.c      Sun Nov  3 13:25:47 2019        
(r354283)
@@ -1109,6 +1109,7 @@ vdev_init_from_nvlist(const unsigned char *nvlist, vde
        const unsigned char *kids;
        int nkids, i, is_new;
        uint64_t is_offline, is_faulted, is_degraded, is_removed, isnt_present;
+       uint64_t is_log;
 
        if (nvlist_find(nvlist, ZPOOL_CONFIG_GUID, DATA_TYPE_UINT64,
            NULL, &guid)
@@ -1132,17 +1133,20 @@ vdev_init_from_nvlist(const unsigned char *nvlist, vde
        }
 
        is_offline = is_removed = is_faulted = is_degraded = isnt_present = 0;
+       is_log = 0;
 
        nvlist_find(nvlist, ZPOOL_CONFIG_OFFLINE, DATA_TYPE_UINT64, NULL,
-                       &is_offline);
+           &is_offline);
        nvlist_find(nvlist, ZPOOL_CONFIG_REMOVED, DATA_TYPE_UINT64, NULL,
-                       &is_removed);
+           &is_removed);
        nvlist_find(nvlist, ZPOOL_CONFIG_FAULTED, DATA_TYPE_UINT64, NULL,
-                       &is_faulted);
+           &is_faulted);
        nvlist_find(nvlist, ZPOOL_CONFIG_DEGRADED, DATA_TYPE_UINT64, NULL,
-                       &is_degraded);
+           &is_degraded);
        nvlist_find(nvlist, ZPOOL_CONFIG_NOT_PRESENT, DATA_TYPE_UINT64, NULL,
-                       &isnt_present);
+           &isnt_present);
+       nvlist_find(nvlist, ZPOOL_CONFIG_IS_LOG, DATA_TYPE_UINT64, NULL,
+           &is_log);
 
        vdev = vdev_find(guid);
        if (!vdev) {
@@ -1217,6 +1221,7 @@ vdev_init_from_nvlist(const unsigned char *nvlist, vde
                                return (ENOMEM);
                        vdev->v_name = name;
                }
+               vdev->v_islog = is_log == 1;
        } else {
                is_new = 0;
        }
@@ -1433,6 +1438,12 @@ vdev_status(vdev_t *vdev, int indent)
 {
        vdev_t *kid;
        int ret;
+
+       if (vdev->v_islog) {
+               (void)pager_output("        logs\n");
+               indent++;
+       }
+
        ret = print_state(indent, vdev->v_name, vdev->v_state);
        if (ret != 0)
                return (ret);
@@ -1737,6 +1748,12 @@ vdev_probe(vdev_phys_read_t *_read, void *read_priv, s
                printf("ZFS: inconsistent nvlist contents\n");
                return (EIO);
        }
+
+       /*
+        * We do not support reading pools with log device.
+        */
+       if (vdev->v_islog)
+               spa->spa_with_log = vdev->v_islog;
 
        /*
         * Re-evaluate top-level vdev state.

Modified: head/sys/cddl/boot/zfs/zfsimpl.h
==============================================================================
--- head/sys/cddl/boot/zfs/zfsimpl.h    Sun Nov  3 13:03:47 2019        
(r354282)
+++ head/sys/cddl/boot/zfs/zfsimpl.h    Sun Nov  3 13:25:47 2019        
(r354283)
@@ -1670,6 +1670,7 @@ typedef struct vdev {
        vdev_phys_read_t *v_phys_read;  /* read from raw leaf vdev */
        vdev_read_t     *v_read;        /* read from vdev */
        void            *v_read_priv;   /* private data for read function */
+       boolean_t       v_islog;
        struct spa      *spa;           /* link to spa */
        /*
         * Values stored in the config for an indirect or removing vdev.
@@ -1694,6 +1695,7 @@ typedef struct spa {
        zio_cksum_salt_t spa_cksum_salt;        /* secret salt for cksum */
        void            *spa_cksum_tmpls[ZIO_CHECKSUM_FUNCTIONS];
        int             spa_inited;     /* initialized */
+       boolean_t       spa_with_log;   /* this pool has log */
 } spa_t;
 
 /* IO related arguments. */
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