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Add support for user/group dnode accounting & quota

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This patch tracks dnode usage for each user/group in the
DMU_USER/GROUPUSED_OBJECT ZAPs. ZAP entries dedicated to dnode
accounting have the key prefixed with "obj-" followed by the UID/GID
in string format (as done for the block accounting).
A new SPA feature has been added for dnode accounting as well as
a new ZPL version. The SPA feature must be enabled in the pool
before upgrading the zfs filesystem. During the zfs version upgrade,
a "quotacheck" will be executed by marking all dnode as dirty.

ZoL-bug-id: https://github.com/zfsonlinux/zfs/issues/3500

Signed-off-by: Jinshan Xiong <jinshan.xiong@intel.com>
Signed-off-by: Johann Lombardi <johann.lombardi@intel.com>
This commit is contained in:
Jinshan Xiong
2016-10-04 11:46:10 -07:00
committed by Brian Behlendorf
parent af322debaa
commit 1de321e626
43 changed files with 1119 additions and 98 deletions
Download Patch File Download Diff File Expand all files Collapse all files
module/zfs/zfs_ioctl.c
+61 -1
View File
@@ -244,9 +244,14 @@ static const char *userquota_perms[] = {
ZFS_DELEG_PERM_USERQUOTA,
ZFS_DELEG_PERM_GROUPUSED,
ZFS_DELEG_PERM_GROUPQUOTA,
ZFS_DELEG_PERM_USEROBJUSED,
ZFS_DELEG_PERM_USEROBJQUOTA,
ZFS_DELEG_PERM_GROUPOBJUSED,
ZFS_DELEG_PERM_GROUPOBJQUOTA,
};
static int zfs_ioc_userspace_upgrade(zfs_cmd_t *zc);
static int zfs_ioc_userobjspace_upgrade(zfs_cmd_t *zc);
static int zfs_check_settable(const char *name, nvpair_t *property,
cred_t *cr);
static int zfs_check_clearable(char *dataset, nvlist_t *props,
@@ -1171,7 +1176,9 @@ zfs_secpolicy_userspace_one(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
* themself, allow it.
*/
if (zc->zc_objset_type == ZFS_PROP_USERUSED ||
zc->zc_objset_type == ZFS_PROP_USERQUOTA) {
zc->zc_objset_type == ZFS_PROP_USERQUOTA ||
zc->zc_objset_type == ZFS_PROP_USEROBJUSED ||
zc->zc_objset_type == ZFS_PROP_USEROBJQUOTA) {
if (zc->zc_guid == crgetuid(cr))
return (0);
} else {
@@ -2426,6 +2433,7 @@ zfs_prop_set_special(const char *dsname, zprop_source_t source,
zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP);
(void) strcpy(zc->zc_name, dsname);
(void) zfs_ioc_userspace_upgrade(zc);
(void) zfs_ioc_userobjspace_upgrade(zc);
kmem_free(zc, sizeof (zfs_cmd_t));
}
break;
@@ -3720,13 +3728,23 @@ zfs_check_settable(const char *dsname, nvpair_t *pair, cred_t *cr)
zfs_userquota_prop_prefixes[ZFS_PROP_USERQUOTA];
const char *gq_prefix =
zfs_userquota_prop_prefixes[ZFS_PROP_GROUPQUOTA];
const char *uiq_prefix =
zfs_userquota_prop_prefixes[ZFS_PROP_USEROBJQUOTA];
const char *giq_prefix =
zfs_userquota_prop_prefixes[ZFS_PROP_GROUPOBJQUOTA];
if (strncmp(propname, uq_prefix,
strlen(uq_prefix)) == 0) {
perm = ZFS_DELEG_PERM_USERQUOTA;
} else if (strncmp(propname, uiq_prefix,
strlen(uiq_prefix)) == 0) {
perm = ZFS_DELEG_PERM_USEROBJQUOTA;
} else if (strncmp(propname, gq_prefix,
strlen(gq_prefix)) == 0) {
perm = ZFS_DELEG_PERM_GROUPQUOTA;
} else if (strncmp(propname, giq_prefix,
strlen(giq_prefix)) == 0) {
perm = ZFS_DELEG_PERM_GROUPOBJQUOTA;
} else {
/* USERUSED and GROUPUSED are read-only */
return (SET_ERROR(EINVAL));
@@ -4927,6 +4945,48 @@ zfs_ioc_userspace_upgrade(zfs_cmd_t *zc)
return (error);
}
/*
* inputs:
* zc_name name of filesystem
*
* outputs:
* none
*/
static int
zfs_ioc_userobjspace_upgrade(zfs_cmd_t *zc)
{
objset_t *os;
int error;
error = dmu_objset_hold(zc->zc_name, FTAG, &os);
if (error != 0)
return (error);
dsl_dataset_long_hold(dmu_objset_ds(os), FTAG);
dsl_pool_rele(dmu_objset_pool(os), FTAG);
if (dmu_objset_userobjspace_upgradable(os)) {
mutex_enter(&os->os_upgrade_lock);
if (os->os_upgrade_id == 0) {
/* clear potential error code and retry */
os->os_upgrade_status = 0;
mutex_exit(&os->os_upgrade_lock);
dmu_objset_userobjspace_upgrade(os);
} else {
mutex_exit(&os->os_upgrade_lock);
}
taskq_wait_id(os->os_spa->spa_upgrade_taskq, os->os_upgrade_id);
error = os->os_upgrade_status;
}
dsl_dataset_long_rele(dmu_objset_ds(os), FTAG);
dsl_dataset_rele(dmu_objset_ds(os), FTAG);
return (error);
}
static int
zfs_ioc_share(zfs_cmd_t *zc)
{