d/freebsd-nq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Make M_ZERO flag work correctly on UMA_ZONE_PCPU zones.

Browse Source 
Sponsored by:	Nginx, Inc.
This commit is contained in:
Gleb Smirnoff 2014-02-10 19:48:26 +00:00
parent 9188e408cc
commit 48343a2f34
1 changed files with 14 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
sys/vm/uma_core.c
View File

@ -267,6 +267,7 @@ static uma_keg_t uma_kcreate(uma_zone_t zone, size_t size, uma_init uminit,
uma_fini fini, int align, uint32_t flags); uma_fini fini, int align, uint32_t flags);
static int zone_import(uma_zone_t zone, void **bucket, int max, int flags); static int zone_import(uma_zone_t zone, void **bucket, int max, int flags);
static void zone_release(uma_zone_t zone, void **bucket, int cnt); static void zone_release(uma_zone_t zone, void **bucket, int cnt);
static void uma_zero_item(void *item, uma_zone_t zone);
void uma_print_zone(uma_zone_t); void uma_print_zone(uma_zone_t);
void uma_print_stats(void); void uma_print_stats(void);
@ -2170,7 +2171,7 @@ zalloc_start:
uma_dbg_alloc(zone, NULL, item); uma_dbg_alloc(zone, NULL, item);
#endif #endif
if (flags & M_ZERO) if (flags & M_ZERO)
bzero(item, zone->uz_size); uma_zero_item(item, zone);
return (item); return (item);
} }
@ -2620,7 +2621,7 @@ zone_alloc_item(uma_zone_t zone, void *udata, int flags)
uma_dbg_alloc(zone, NULL, item); uma_dbg_alloc(zone, NULL, item);
#endif #endif
if (flags & M_ZERO) if (flags & M_ZERO)
bzero(item, zone->uz_size); uma_zero_item(item, zone);
return (item); return (item);
@ -3237,6 +3238,17 @@ uma_large_free(uma_slab_t slab)
zone_free_item(slabzone, slab, NULL, SKIP_NONE); zone_free_item(slabzone, slab, NULL, SKIP_NONE);
} }
static void
uma_zero_item(void *item, uma_zone_t zone)
{
if (zone->uz_flags & UMA_ZONE_PCPU) {
for (int i = 0; i < mp_ncpus; i++)
bzero(zpcpu_get_cpu(item, i), zone->uz_size);
} else
bzero(item, zone->uz_size);
}
void void
uma_print_stats(void) uma_print_stats(void)
{ {