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dnode: remove dn_dirty_txg and DNODE_IS_DIRTY

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dn_dirty_txg only existed for DNODE_IS_DIRTY(). In turn, that only
existed to ensure that a dnode was clean before making it eligible for
removal from the array of cached dnodes attached to the object 0 L0
dbuf.

dn_dirtycnt is enough to check that now, so use it directly and remove
the rest.

Sponsored-by: Klara, Inc.
Sponsored-by: Wasabi Technology, Inc.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Robert Evans <evansr@google.com>
Reviewed-by: Adam Moss <c@yotes.com>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Signed-off-by: Rob Norris <rob.norris@klarasystems.com>
Closes #16297
Closes #17652
Closes #17658
This commit is contained in:
Rob Norris
2025-08-19 17:14:44 +10:00
committed by Brian Behlendorf
parent f3e49b0cf5
commit eecff1b4a9
4 changed files with 2 additions and 15 deletions
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module/zfs/dbuf.c
-2
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@@ -2291,8 +2291,6 @@ dbuf_dirty(dmu_buf_impl_t *db, dmu_tx_t *tx)
mutex_enter(&dn->dn_mtx);
dnode_set_dirtyctx(dn, tx, db);
if (tx->tx_txg > dn->dn_dirty_txg)
dn->dn_dirty_txg = tx->tx_txg;
mutex_exit(&dn->dn_mtx);
if (db->db_blkid == DMU_SPILL_BLKID)