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Fix ZIL clone records for legacy holes 

Previous code overengineered cloned range calculation by using
BP_GET_LSIZE(). The problem is that legacy holes don't have the
logical size, so result will be wrong.  But we also don't need
to look on every block size, since they all must be identical.

Signed-off-by:	Alexander Motin <mav@FreeBSD.org>
Sponsored by:	iXsystems, Inc.
This commit is contained in:
Alexander Motin 2024-05-04 12:14:12 -04:00
parent 04bae5ec95
commit 18ae7cadd7
1 changed files with 3 additions and 5 deletions
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8
module/zfs/zfs_log.c
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@ -895,7 +895,7 @@ zfs_log_clone_range(zilog_t *zilog, dmu_tx_t *tx, int txtype, znode_t *zp,
itx_t *itx;
lr_clone_range_t *lr;
uint64_t partlen, max_log_data;
size_t i, partnbps;
size_t partnbps;
if (zil_replaying(zilog, tx) || zp->z_unlinked)
return;
@ -904,10 +904,8 @@ zfs_log_clone_range(zilog_t *zilog, dmu_tx_t *tx, int txtype, znode_t *zp,
while (nbps > 0) {
partnbps = MIN(nbps, max_log_data / sizeof (bps[0]));
partlen = 0;
for (i = 0; i < partnbps; i++) {
partlen += BP_GET_LSIZE(&bps[i]);
}
partlen = partnbps * blksz;
ASSERT3U(partlen, <, len + blksz);
partlen = MIN(partlen, len);
itx = zil_itx_create(txtype,