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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/zfs_prop.h
+10 -1
View File
@@ -99,6 +99,13 @@ _ZFS_PROP_H void zpool_prop_init(void);
_ZFS_PROP_H zprop_type_t zpool_prop_get_type(zpool_prop_t);
_ZFS_PROP_H zprop_desc_t *zpool_prop_get_table(void);
/*
* vdev property functions
*/
_ZFS_PROP_H void vdev_prop_init(void);
_ZFS_PROP_H zprop_type_t vdev_prop_get_type(vdev_prop_t prop);
_ZFS_PROP_H zprop_desc_t *vdev_prop_get_table(void);
/*
* Common routines to initialize property tables
*/
@@ -122,11 +129,13 @@ _ZFS_PROP_H int zprop_iter_common(zprop_func, void *, boolean_t, boolean_t,
_ZFS_PROP_H int zprop_name_to_prop(const char *, zfs_type_t);
_ZFS_PROP_H int zprop_string_to_index(int, const char *, uint64_t *,
zfs_type_t);
_ZFS_PROP_H int zprop_index_to_string(int, uint64_t, const char **, zfs_type_t);
_ZFS_PROP_H int zprop_index_to_string(int, uint64_t, const char **,
zfs_type_t);
_ZFS_PROP_H uint64_t zprop_random_value(int, uint64_t, zfs_type_t);
_ZFS_PROP_H const char *zprop_values(int, zfs_type_t);
_ZFS_PROP_H size_t zprop_width(int, boolean_t *, zfs_type_t);
_ZFS_PROP_H boolean_t zprop_valid_for_type(int, zfs_type_t, boolean_t);
_ZFS_PROP_H int zprop_valid_char(char c);
#ifdef __cplusplus
}