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Pass flags to more DMU write/hold functions

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Over the time many of DMU functions got flags argument to control
prefetch, caching, etc.  Few functions though left without it, even
though closer look shown that many of them do not require prefetch
due to their access pattern.  This patch adds the flags argument to
dmu_write(), dmu_buf_hold_array() and dmu_buf_hold_array_by_bonus(),
passing DMU_READ_NO_PREFETCH where applicable.

I am going to also pass DMU_UNCACHEDIO to some of them later.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Rob Norris <robn@despairlabs.com>
Signed-off-by: Alexander Motin <alexander.motin@TrueNAS.com>
Closes #17872
This commit is contained in:
Alexander Motin
2025-10-29 14:17:51 -04:00
committed by Brian Behlendorf
parent 9a9e06e5dd
commit 5847626175
21 changed files with 69 additions and 47 deletions
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cmd/ztest.c
+10 -5
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@@ -2306,7 +2306,8 @@ ztest_replay_write(void *arg1, void *arg2, boolean_t byteswap)
}
if (abuf == NULL) {
dmu_write(os, lr->lr_foid, offset, length, data, tx);
dmu_write(os, lr->lr_foid, offset, length, data, tx,
DMU_READ_PREFETCH);
} else {
memcpy(abuf->b_data, data, length);
VERIFY0(dmu_assign_arcbuf_by_dbuf(db, offset, abuf, tx, 0));
@@ -5243,7 +5244,8 @@ ztest_dmu_read_write(ztest_ds_t *zd, uint64_t id)
* We've verified all the old bufwads, and made new ones.
* Now write them out.
*/
dmu_write(os, packobj, packoff, packsize, packbuf, tx);
dmu_write(os, packobj, packoff, packsize, packbuf, tx,
DMU_READ_PREFETCH);
if (freeit) {
if (ztest_opts.zo_verbose >= 7) {
@@ -5258,7 +5260,8 @@ ztest_dmu_read_write(ztest_ds_t *zd, uint64_t id)
" txg %"PRIx64"\n",
bigoff, bigsize, txg);
}
dmu_write(os, bigobj, bigoff, bigsize, bigbuf, tx);
dmu_write(os, bigobj, bigoff, bigsize, bigbuf, tx,
DMU_READ_PREFETCH);
}
dmu_tx_commit(tx);
@@ -5513,7 +5516,8 @@ ztest_dmu_read_write_zcopy(ztest_ds_t *zd, uint64_t id)
* We've verified all the old bufwads, and made new ones.
* Now write them out.
*/
dmu_write(os, packobj, packoff, packsize, packbuf, tx);
dmu_write(os, packobj, packoff, packsize, packbuf, tx,
DMU_READ_PREFETCH);
if (ztest_opts.zo_verbose >= 7) {
(void) printf("writing offset %"PRIx64" size %"PRIx64""
" txg %"PRIx64"\n",
@@ -6119,7 +6123,8 @@ ztest_dmu_commit_callbacks(ztest_ds_t *zd, uint64_t id)
"future leak: got %"PRIu64", open txg is %"PRIu64"",
old_txg, txg);
dmu_write(os, od->od_object, 0, sizeof (uint64_t), &txg, tx);
dmu_write(os, od->od_object, 0, sizeof (uint64_t), &txg, tx,
DMU_READ_PREFETCH);
(void) mutex_enter(&zcl.zcl_callbacks_lock);