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Add zfs_prepare_disk script for disk firmware install

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Have libzfs call a special `zfs_prepare_disk` script before a disk is
included into the pool.  The user can edit this script to add things
like a disk firmware update or a disk health check.  Use of the script
is totally optional. See the zfs_prepare_disk manpage for full details.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tony Hutter <hutter2@llnl.gov>
Closes #15243
This commit is contained in:
Tony Hutter
2023-09-21 08:36:26 -07:00
committed by GitHub
parent 4647353c8b
commit b53077a9e7
14 changed files with 388 additions and 35 deletions
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cmd/zpool/zpool_vdev.c
+36 -7
View File
@@ -936,6 +936,15 @@ zero_label(const char *path)
return (0);
}
static void
lines_to_stderr(char *lines[], int lines_cnt)
{
int i;
for (i = 0; i < lines_cnt; i++) {
fprintf(stderr, "%s\n", lines[i]);
}
}
/*
* Go through and find any whole disks in the vdev specification, labelling them
* as appropriate. When constructing the vdev spec, we were unable to open this
@@ -947,7 +956,7 @@ zero_label(const char *path)
* need to get the devid after we label the disk.
*/
static int
make_disks(zpool_handle_t *zhp, nvlist_t *nv)
make_disks(zpool_handle_t *zhp, nvlist_t *nv, boolean_t replacing)
{
nvlist_t **child;
uint_t c, children;
@@ -1032,6 +1041,8 @@ make_disks(zpool_handle_t *zhp, nvlist_t *nv)
*/
if (!is_exclusive && !is_spare(NULL, udevpath)) {
char *devnode = strrchr(devpath, '/') + 1;
char **lines = NULL;
int lines_cnt = 0;
ret = strncmp(udevpath, UDISK_ROOT, strlen(UDISK_ROOT));
if (ret == 0) {
@@ -1043,9 +1054,27 @@ make_disks(zpool_handle_t *zhp, nvlist_t *nv)
/*
* When labeling a pool the raw device node name
* is provided as it appears under /dev/.
*
* Note that 'zhp' will be NULL when we're creating a
* pool.
*/
if (zpool_label_disk(g_zfs, zhp, devnode) == -1)
if (zpool_prepare_and_label_disk(g_zfs, zhp, devnode,
nv, zhp == NULL ? "create" :
replacing ? "replace" : "add", &lines,
&lines_cnt) != 0) {
(void) fprintf(stderr,
gettext(
"Error preparing/labeling disk.\n"));
if (lines_cnt > 0) {
(void) fprintf(stderr,
gettext("zfs_prepare_disk output:\n"));
lines_to_stderr(lines, lines_cnt);
}
libzfs_free_str_array(lines, lines_cnt);
return (-1);
}
libzfs_free_str_array(lines, lines_cnt);
/*
* Wait for udev to signal the device is available
@@ -1082,19 +1111,19 @@ make_disks(zpool_handle_t *zhp, nvlist_t *nv)
}
for (c = 0; c < children; c++)
if ((ret = make_disks(zhp, child[c])) != 0)
if ((ret = make_disks(zhp, child[c], replacing)) != 0)
return (ret);
if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_SPARES,
&child, &children) == 0)
for (c = 0; c < children; c++)
if ((ret = make_disks(zhp, child[c])) != 0)
if ((ret = make_disks(zhp, child[c], replacing)) != 0)
return (ret);
if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_L2CACHE,
&child, &children) == 0)
for (c = 0; c < children; c++)
if ((ret = make_disks(zhp, child[c])) != 0)
if ((ret = make_disks(zhp, child[c], replacing)) != 0)
return (ret);
return (0);
@@ -1752,7 +1781,7 @@ split_mirror_vdev(zpool_handle_t *zhp, char *newname, nvlist_t *props,
return (NULL);
}
if (!flags.dryrun && make_disks(zhp, newroot) != 0) {
if (!flags.dryrun && make_disks(zhp, newroot, B_FALSE) != 0) {
nvlist_free(newroot);
return (NULL);
}
@@ -1873,7 +1902,7 @@ make_root_vdev(zpool_handle_t *zhp, nvlist_t *props, int force, int check_rep,
/*
* Run through the vdev specification and label any whole disks found.
*/
if (!dryrun && make_disks(zhp, newroot) != 0) {
if (!dryrun && make_disks(zhp, newroot, replacing) != 0) {
nvlist_free(newroot);
return (NULL);
}