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Fix cloning into already dirty dbufs.

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Undirty the dbuf and destroy its buffer when cloning into it.

Coverity ID: CID-1535375
Reported-by: Richard Yao
Reported-by: Benjamin Coddington
Reviewed-by: Richard Yao <richard.yao@alumni.stonybrook.edu>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Signed-off-by: Pawel Jakub Dawidek <pawel@dawidek.net>
Closes #14655
This commit is contained in:
Pawel Jakub Dawidek
2023-03-24 18:18:35 +01:00
committed by GitHub
parent 5b5f518687
commit ce0e1cc402
3 changed files with 26 additions and 13 deletions
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include/sys/dbuf.h
+1
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@@ -382,6 +382,7 @@ void dbuf_assign_arcbuf(dmu_buf_impl_t *db, arc_buf_t *buf, dmu_tx_t *tx);
dbuf_dirty_record_t *dbuf_dirty(dmu_buf_impl_t *db, dmu_tx_t *tx);
dbuf_dirty_record_t *dbuf_dirty_lightweight(dnode_t *dn, uint64_t blkid,
dmu_tx_t *tx);
boolean_t dbuf_undirty(dmu_buf_impl_t *db, dmu_tx_t *tx);
arc_buf_t *dbuf_loan_arcbuf(dmu_buf_impl_t *db);
void dmu_buf_write_embedded(dmu_buf_t *dbuf, void *data,
bp_embedded_type_t etype, enum zio_compress comp,