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Vdev Properties Feature

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Add properties, similar to pool properties, to each vdev.
This makes use of the existing per-vdev ZAP that was added as
part of device evacuation/removal.

A large number of read-only properties are exposed,
many of the members of struct vdev_t, that provide useful
statistics.

Adds support for read-only "removing" vdev property.
Adds the "allocating" property that defaults to "on" and
can be set to "off" to prevent future allocations from that
top-level vdev.

Supports user-defined vdev properties.
Includes support for properties.vdev in SYSFS.

Co-authored-by: Allan Jude <allan@klarasystems.com>
Co-authored-by: Mark Maybee <mark.maybee@delphix.com>
Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: Mark Maybee <mark.maybee@delphix.com>
Signed-off-by: Allan Jude <allan@klarasystems.com>
Closes #11711
This commit is contained in:
Allan Jude
2021-11-30 09:46:25 -05:00
committed by GitHub
parent 5f64bf7fde
commit 2a673e76a9
33 changed files with 2746 additions and 243 deletions
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include/libzfs.h
+30 -2
View File
@@ -150,6 +150,7 @@ typedef enum zfs_error {
EZFS_NO_RESILVER_DEFER, /* pool doesn't support resilver_defer */
EZFS_EXPORT_IN_PROGRESS, /* currently exporting the pool */
EZFS_REBUILDING, /* resilvering (sequential reconstrution) */
EZFS_VDEV_NOTSUP, /* ops not supported for this type of vdev */
EZFS_UNKNOWN
} zfs_error_t;
@@ -336,6 +337,24 @@ _LIBZFS_H int zpool_props_refresh(zpool_handle_t *);
_LIBZFS_H const char *zpool_prop_to_name(zpool_prop_t);
_LIBZFS_H const char *zpool_prop_values(zpool_prop_t);
/*
* Functions to manage vdev properties
*/
_LIBZFS_H int zpool_get_vdev_prop_value(nvlist_t *, vdev_prop_t, char *, char *,
size_t, zprop_source_t *, boolean_t);
_LIBZFS_H int zpool_get_vdev_prop(zpool_handle_t *, const char *, vdev_prop_t,
char *, char *, size_t, zprop_source_t *, boolean_t);
_LIBZFS_H int zpool_get_all_vdev_props(zpool_handle_t *, const char *,
nvlist_t **);
_LIBZFS_H int zpool_set_vdev_prop(zpool_handle_t *, const char *, const char *,
const char *);
_LIBZFS_H const char *vdev_prop_to_name(vdev_prop_t);
_LIBZFS_H const char *vdev_prop_values(vdev_prop_t);
_LIBZFS_H boolean_t vdev_prop_user(const char *name);
_LIBZFS_H const char *vdev_prop_column_name(vdev_prop_t);
_LIBZFS_H boolean_t vdev_prop_align_right(vdev_prop_t);
/*
* Pool health statistics.
*/
@@ -552,6 +571,8 @@ typedef struct zprop_list {
_LIBZFS_H int zfs_expand_proplist(zfs_handle_t *, zprop_list_t **, boolean_t,
boolean_t);
_LIBZFS_H void zfs_prune_proplist(zfs_handle_t *, uint8_t *);
_LIBZFS_H int vdev_expand_proplist(zpool_handle_t *, const char *,
zprop_list_t **);
#define ZFS_MOUNTPOINT_NONE "none"
#define ZFS_MOUNTPOINT_LEGACY "legacy"
@@ -567,7 +588,7 @@ _LIBZFS_H void zfs_prune_proplist(zfs_handle_t *, uint8_t *);
* zpool property management
*/
_LIBZFS_H int zpool_expand_proplist(zpool_handle_t *, zprop_list_t **,
boolean_t);
zfs_type_t, boolean_t);
_LIBZFS_H int zpool_prop_get_feature(zpool_handle_t *, const char *, char *,
size_t);
_LIBZFS_H const char *zpool_prop_default_string(zpool_prop_t);
@@ -598,6 +619,12 @@ typedef enum {
/*
* Functions for printing zfs or zpool properties
*/
typedef struct vdev_cbdata {
int cb_name_flags;
char **cb_names;
unsigned int cb_names_count;
} vdev_cbdata_t;
typedef struct zprop_get_cbdata {
int cb_sources;
zfs_get_column_t cb_columns[ZFS_GET_NCOLS];
@@ -607,6 +634,7 @@ typedef struct zprop_get_cbdata {
boolean_t cb_first;
zprop_list_t *cb_proplist;
zfs_type_t cb_type;
vdev_cbdata_t cb_vdevs;
} zprop_get_cbdata_t;
_LIBZFS_H void zprop_print_one_property(const char *, zprop_get_cbdata_t *,
@@ -879,7 +907,7 @@ _LIBZFS_H void zfs_commit_shares(const char *);
_LIBZFS_H int zfs_nicestrtonum(libzfs_handle_t *, const char *, uint64_t *);
/*
* Utility functions to run an external process.
* Utility functions to run an _LIBZFS_Hal process.
*/
#define STDOUT_VERBOSE 0x01
#define STDERR_VERBOSE 0x02