*/
/*
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2012, 2017 by Delphix. All rights reserved.
+ * Copyright (c) 2012, 2018 by Delphix. All rights reserved.
* Copyright (c) 2014 Spectra Logic Corporation, All rights reserved.
*/
/* 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)
+/*
+ * This mask defines the set of flags which are "portable", meaning
+ * that they can be preserved when doing a raw encrypted zfs send.
+ * Flags included in this mask will be protected by AAD when the block
+ * of dnodes is encrypted.
+ */
#define DNODE_CRYPT_PORTABLE_FLAGS_MASK (DNODE_FLAG_SPILL_BLKPTR)
/*
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];
/*
};
} dnode_phys_t;
-#define DN_SPILL_BLKPTR(dnp) (blkptr_t *)((char *)(dnp) + \
- (((dnp)->dn_extra_slots + 1) << DNODE_SHIFT) - (1 << SPA_BLKPTRSHIFT))
+#define DN_SPILL_BLKPTR(dnp) ((blkptr_t *)((char *)(dnp) + \
+ (((dnp)->dn_extra_slots + 1) << DNODE_SHIFT) - (1 << SPA_BLKPTRSHIFT)))
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 */
uint64_t dn_allocated_txg;
uint64_t dn_free_txg;
uint64_t dn_assigned_txg;
+ uint64_t dn_dirty_txg; /* txg dnode was last dirtied */
kcondvar_t dn_notxholds;
enum dnode_dirtycontext dn_dirtyctx;
uint8_t *dn_dirtyctx_firstset; /* dbg: contents meaningless */
/* protected by own devices */
- refcount_t dn_tx_holds;
- refcount_t dn_holds;
+ zfs_refcount_t dn_tx_holds;
+ zfs_refcount_t dn_holds;
kmutex_t dn_dbufs_mtx;
/*
/* 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 */
struct zfetch dn_zfetch;
};
+/*
+ * We use this (otherwise unused) bit to indicate if the value of
+ * dn_next_maxblkid[txgoff] is valid to use in dnode_sync().
+ */
+#define DMU_NEXT_MAXBLKID_SET (1ULL << 63)
+
/*
* Adds a level of indirection between the dbuf and the dnode to avoid
* iterating descendent dbufs in dnode_move(). Handles are not allocated
void *ref, dnode_t **dnp);
boolean_t dnode_add_ref(dnode_t *dn, void *ref);
void dnode_rele(dnode_t *dn, void *ref);
-void dnode_rele_and_unlock(dnode_t *dn, void *tag);
+void dnode_rele_and_unlock(dnode_t *dn, void *tag, boolean_t evicting);
void dnode_setdirty(dnode_t *dn, dmu_tx_t *tx);
void dnode_sync(dnode_t *dn, dmu_tx_t *tx);
void dnode_allocate(dnode_t *dn, dmu_object_type_t ot, int blocksize, int ibs,
dmu_object_type_t bonustype, int bonuslen, int dn_slots, dmu_tx_t *tx);
void dnode_reallocate(dnode_t *dn, dmu_object_type_t ot, int blocksize,
- dmu_object_type_t bonustype, int bonuslen, int dn_slots, dmu_tx_t *tx);
+ dmu_object_type_t bonustype, int bonuslen, int dn_slots,
+ boolean_t keep_spill, dmu_tx_t *tx);
void dnode_free(dnode_t *dn, dmu_tx_t *tx);
void dnode_byteswap(dnode_phys_t *dnp);
void dnode_buf_byteswap(void *buf, size_t size);
int dnode_set_blksz(dnode_t *dn, uint64_t size, int ibs, dmu_tx_t *tx);
void dnode_free_range(dnode_t *dn, uint64_t off, uint64_t len, dmu_tx_t *tx);
void dnode_diduse_space(dnode_t *dn, int64_t space);
-void dnode_new_blkid(dnode_t *dn, uint64_t blkid, dmu_tx_t *tx, boolean_t);
+void dnode_new_blkid(dnode_t *dn, uint64_t blkid, dmu_tx_t *tx,
+ boolean_t have_read, boolean_t force);
uint64_t dnode_block_freed(dnode_t *dn, uint64_t blkid);
void dnode_init(void);
void dnode_fini(void);
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);
+boolean_t dnode_needs_remap(const dnode_t *dn);
+
+#define DNODE_IS_DIRTY(_dn) \
+ ((_dn)->dn_dirty_txg >= spa_syncing_txg((_dn)->dn_objset->os_spa))
#define DNODE_IS_CACHEABLE(_dn) \
((_dn)->dn_objset->os_primary_cache == ZFS_CACHE_ALL || \
* 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().
*/
#ifdef ZFS_DEBUG
-/*
- * There should be a ## between the string literal and fmt, to make it
- * clear that we're joining two strings together, but that piece of shit
- * gcc doesn't support that preprocessor token.
- */
#define dprintf_dnode(dn, fmt, ...) do { \
if (zfs_flags & ZFS_DEBUG_DPRINTF) { \
char __db_buf[32]; \
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