Project Quota on ZFS

[mirror_zfs.git] / include / sys / dnode.h

diff --git a/include/sys/dnode.h b/include/sys/dnode.h
index e5e39b18c9e92b5319debef4518515ffec15c490..9c44a22324039b48b7582d88ad18a5cc303b3342 100644 (file)
--- a/include/sys/dnode.h
+++ b/include/sys/dnode.h
@@ -147,7 +147,7 @@ enum dnode_dirtycontext {
 /* Does dnode have a SA spill blkptr in bonus? */
 #define        DNODE_FLAG_SPILL_BLKPTR                 (1 << 2)
 
-/* User/Group dnode accounting */
+/* User/Group/Project dnode accounting */
 #define        DNODE_FLAG_USEROBJUSED_ACCOUNTED        (1 << 3)
 
 #define        DNODE_CRYPT_PORTABLE_FLAGS_MASK         (DNODE_FLAG_SPILL_BLKPTR)
@@ -221,6 +221,13 @@ typedef struct dnode_phys {
        uint64_t dn_maxblkid;           /* largest allocated block ID */
        uint64_t dn_used;               /* bytes (or sectors) of disk space */
 
+       /*
+        * Both dn_pad2 and dn_pad3 are protected by the block's MAC. This
+        * allows us to protect any fields that might be added here in the
+        * future. In either case, developers will want to check
+        * zio_crypt_init_uios_dnode() to ensure the new field is being
+        * protected properly.
+        */
        uint64_t dn_pad3[4];
 
        /*
@@ -301,6 +308,7 @@ struct dnode {
        uint8_t dn_rm_spillblk[TXG_SIZE];       /* for removing spill blk */
        uint16_t dn_next_bonuslen[TXG_SIZE];
        uint32_t dn_next_blksz[TXG_SIZE];       /* next block size in bytes */
+       uint64_t dn_next_maxblkid[TXG_SIZE];    /* next maxblkid in bytes */
 
        /* protected by dn_dbufs_mtx; declared here to fill 32-bit hole */
        uint32_t dn_dbufs_count;        /* count of dn_dbufs */
@@ -348,8 +356,8 @@ struct dnode {
        /* used in syncing context */
        uint64_t dn_oldused;    /* old phys used bytes */
        uint64_t dn_oldflags;   /* old phys dn_flags */
-       uint64_t dn_olduid, dn_oldgid;
-       uint64_t dn_newuid, dn_newgid;
+       uint64_t dn_olduid, dn_oldgid, dn_oldprojid;
+       uint64_t dn_newuid, dn_newgid, dn_newprojid;
        int dn_id_flags;
 
        /* holds prefetch structure */
@@ -416,6 +424,7 @@ int dnode_next_offset(dnode_t *dn, int flags, uint64_t *off,
     int minlvl, uint64_t blkfill, uint64_t txg);
 void dnode_evict_dbufs(dnode_t *dn);
 void dnode_evict_bonus(dnode_t *dn);
+void dnode_free_interior_slots(dnode_t *dn);
 
 #define        DNODE_IS_CACHEABLE(_dn)                                         \
        ((_dn)->dn_objset->os_primary_cache == ZFS_CACHE_ALL ||         \
@@ -509,6 +518,11 @@ typedef struct dnode_stats {
         * which had already been unlinked in an earlier txg.
         */
        kstat_named_t dnode_hold_free_txg;
+       /*
+        * Number of times dnode_free_interior_slots() needed to retry
+        * acquiring a slot zrl lock due to contention.
+        */
+       kstat_named_t dnode_free_interior_lock_retry;
        /*
         * Number of new dnodes allocated by dnode_allocate().
         */