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Switch KM_SLEEP to KM_PUSHPAGE

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Prevent snapshot_check to initiate I/O during memory allocation.

Signed-off-by: Massimo Maggi <massimo@mmmm.it>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #1023
This commit is contained in:
Massimo Maggi 2012-10-07 21:54:06 +02:00 committed by Brian Behlendorf
parent 7bd04f2d7d
commit beb999445a
1 changed files with 1 additions and 1 deletions
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2
module/zfs/dmu_objset.c
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@ -848,7 +848,7 @@ snapshot_check(void *arg1, void *arg2, dmu_tx_t *tx)
if (strlen(sn->htag) + MAX_TAG_PREFIX_LEN >= MAXNAMELEN)
return (E2BIG);
sn->ha = kmem_alloc(sizeof (struct dsl_ds_holdarg), KM_SLEEP);
sn->ha = kmem_alloc(sizeof(struct dsl_ds_holdarg), KM_PUSHPAGE);
sn->ha->temphold = B_TRUE;
sn->ha->htag = sn->htag;
}