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Destroy ARC buffer in case of fill error 

In case of error dmu_buf_fill_done() returns the buffer back into
DB_UNCACHED state.  Since during transition from DB_UNCACHED into
DB_FILL state dbuf_noread() allocates an ARC buffer, we must free
it here, otherwise it will be leaked.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Jorgen Lundman <lundman@lundman.net>
Signed-off-by: Alexander Motin <mav@FreeBSD.org>
Sponsored by: iXsystems, Inc.
Closes #15665
Closes #15802
Closes #16216
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Alexander Motin 2024-05-24 22:11:18 -04:00 committed by GitHub
parent 8865dfbcaa
commit 02c5aa9b09
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module/zfs/dbuf.c
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@ -2853,6 +2853,7 @@ dmu_buf_fill_done(dmu_buf_t *dbuf, dmu_tx_t *tx, boolean_t failed)
failed = B_FALSE;
} else if (failed) {
VERIFY(!dbuf_undirty(db, tx));
arc_buf_destroy(db->db_buf, db);
db->db_buf = NULL;
dbuf_clear_data(db);
DTRACE_SET_STATE(db, "fill failed");