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Micro-optimize uma_small_alloc(). Replace bzero(..., PAGE_SIZE) by

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pagezero().  Ultimately, they use the same method for bulk zeroing, but
the generality of bzero() requires size and alignment checks that
pagezero() does not.

Eliminate an unnecessary #include.

Reviewed by:	emaste, markj
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D26876
This commit is contained in:
Alan Cox 2020-10-22 17:47:51 +00:00
parent 7cda7375e6
commit 9e0ad88b82
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=366944
1 changed files with 2 additions and 3 deletions
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5
sys/arm64/arm64/uma_machdep.c
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@ -36,11 +36,10 @@ __FBSDID("$FreeBSD$");
#include <vm/vm.h>
#include <vm/vm_param.h>
#include <vm/vm_page.h>
#include <vm/vm_pageout.h>
#include <vm/vm_dumpset.h>
#include <vm/uma.h>
#include <vm/uma_int.h>
#include <machine/md_var.h>
#include <machine/machdep.h>
void *
uma_small_alloc(uma_zone_t zone, vm_size_t bytes, int domain, u_int8_t *flags,
@ -60,7 +59,7 @@ uma_small_alloc(uma_zone_t zone, vm_size_t bytes, int domain, u_int8_t *flags,
dump_add_page(pa);
va = (void *)PHYS_TO_DMAP(pa);
if ((wait & M_ZERO) && (m->flags & PG_ZERO) == 0)
bzero(va, PAGE_SIZE);
pagezero(va);
return (va);
}