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Remove unused check from dmu_tx_count_write() 

Individual transactions may not be larger than DMU_MAX_ACCESS.
This is enforced by the assertions in dmu_tx_hold_write() and
dmu_tx_hold_write_by_dnode().  There's an additional check in
dmu_tx_count_write() however it has no effect and only sets a
local err variable.  We could enable this check, however since
it's already enforced by ASSERTs elsewhere I opted to remove it
instead.

Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #3731 
Closes #11384
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Brian Behlendorf 2020-12-21 20:17:13 -08:00 committed by GitHub
parent af9593903e
commit 0c763f76b1
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1 changed files with 0 additions and 3 deletions
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module/zfs/dmu_tx.c
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@ -230,9 +230,6 @@ dmu_tx_count_write(dmu_tx_hold_t *txh, uint64_t off, uint64_t len)
(void) zfs_refcount_add_many(&txh->txh_space_towrite, len, FTAG);
if (zfs_refcount_count(&txh->txh_space_towrite) > 2 * DMU_MAX_ACCESS)
err = SET_ERROR(EFBIG);
if (dn == NULL)
return;