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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
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include/sys/zfs_vfsops.h
+4
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@@ -110,6 +110,8 @@ typedef struct zfs_sb {
kmutex_t z_lock;
uint64_t z_userquota_obj;
uint64_t z_groupquota_obj;
uint64_t z_userobjquota_obj;
uint64_t z_groupobjquota_obj;
uint64_t z_replay_eof; /* New end of file - replay only */
sa_attr_type_t *z_attr_table; /* SA attr mapping->id */
uint64_t z_hold_size; /* znode hold array size */
@@ -190,6 +192,8 @@ extern boolean_t zfs_owner_overquota(zfs_sb_t *zsb, struct znode *,
boolean_t isgroup);
extern boolean_t zfs_fuid_overquota(zfs_sb_t *zsb, boolean_t isgroup,
uint64_t fuid);
extern boolean_t zfs_fuid_overobjquota(zfs_sb_t *zsb, boolean_t isgroup,
uint64_t fuid);
extern int zfs_set_version(zfs_sb_t *zsb, uint64_t newvers);
extern int zfs_get_zplprop(objset_t *os, zfs_prop_t prop,
uint64_t *value);