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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/dnode.h
+6 -3
View File
@@ -126,11 +126,14 @@ enum dnode_dirtycontext {
};
/* Is dn_used in bytes? if not, it's in multiples of SPA_MINBLOCKSIZE */
#define DNODE_FLAG_USED_BYTES (1<<0)
#define DNODE_FLAG_USERUSED_ACCOUNTED (1<<1)
#define DNODE_FLAG_USED_BYTES (1 << 0)
#define DNODE_FLAG_USERUSED_ACCOUNTED (1 << 1)
/* Does dnode have a SA spill blkptr in bonus? */
#define DNODE_FLAG_SPILL_BLKPTR (1<<2)
#define DNODE_FLAG_SPILL_BLKPTR (1 << 2)
/* User/Group dnode accounting */
#define DNODE_FLAG_USEROBJUSED_ACCOUNTED (1 << 3)
typedef struct dnode_phys {
uint8_t dn_type; /* dmu_object_type_t */