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Reduce the amount of code that runs with the zone lock held in slab_zalloc().

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This allows us to run the zone initialization functions without any locks held.
This commit is contained in:
Jeff Roberson 2002-06-25 21:04:50 +00:00
parent f0b56c5c7e
commit 5c0e403ba2
1 changed files with 8 additions and 6 deletions
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14
sys/vm/uma_core.c
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@ -733,15 +733,11 @@ slab_zalloc(uma_zone_t zone, int wait)
mem = tmps->us_data;
}
ZONE_LOCK(zone);
/* Alloc slab structure for offpage, otherwise adjust it's position */
/* Point the slab into the allocated memory */
if (!(zone->uz_flags & UMA_ZFLAG_OFFPAGE)) {
slab = (uma_slab_t )(mem + zone->uz_pgoff);
} else {
if (!(zone->uz_flags & UMA_ZFLAG_MALLOC))
UMA_HASH_INSERT(&zone->uz_hash, slab, mem);
}
if (zone->uz_flags & UMA_ZFLAG_MALLOC) {
#ifdef UMA_DEBUG
printf("Inserting %p into malloc hash from slab %p\n",
@ -782,10 +778,16 @@ slab_zalloc(uma_zone_t zone, int wait)
for (i = 0; i < zone->uz_ipers; i++)
zone->uz_init(slab->us_data + (zone->uz_rsize * i),
zone->uz_size);
ZONE_LOCK(zone);
if ((zone->uz_flags & (UMA_ZFLAG_OFFPAGE|UMA_ZFLAG_MALLOC)) ==
UMA_ZFLAG_OFFPAGE)
UMA_HASH_INSERT(&zone->uz_hash, slab, mem);
zone->uz_pages += zone->uz_ppera;
zone->uz_free += zone->uz_ipers;
return (slab);
}