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Code Issues Releases Activity

Fix a performance bug in all of the various implementations of

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uma_small_alloc(): They always zeroed the page regardless of what the
caller requested.
This commit is contained in:
Alan Cox 2003-06-18 02:57:38 +00:00
parent 95343ec2e8
commit 40ebf3e43a
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=116510
4 changed files with 4 additions and 4 deletions
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2
sys/alpha/alpha/pmap.c
View File

@ -594,7 +594,7 @@ uma_small_alloc(uma_zone_t zone, int bytes, u_int8_t *flags, int wait)
}
va = (void *)ALPHA_PHYS_TO_K0SEG(m->phys_addr);
if ((m->flags & PG_ZERO) == 0)
if ((wait & M_ZERO) && (m->flags & PG_ZERO) == 0)
bzero(va, PAGE_SIZE);
return (va);
}

2
sys/amd64/amd64/pmap.c
View File

@ -557,7 +557,7 @@ uma_small_alloc(uma_zone_t zone, int bytes, u_int8_t *flags, int wait)
}
va = (void *)PHYS_TO_DMAP(m->phys_addr);
if ((m->flags & PG_ZERO) == 0)
if ((wait & M_ZERO) && (m->flags & PG_ZERO) == 0)
pagezero(va);
return (va);
}

2
sys/ia64/ia64/pmap.c
View File

@ -539,7 +539,7 @@ uma_small_alloc(uma_zone_t zone, int bytes, u_int8_t *flags, int wait)
}
va = (void *)IA64_PHYS_TO_RR7(VM_PAGE_TO_PHYS(m));
if ((m->flags & PG_ZERO) == 0)
if ((wait & M_ZERO) && (m->flags & PG_ZERO) == 0)
bzero(va, PAGE_SIZE);
return (va);
}

2
sys/sparc64/sparc64/vm_machdep.c
View File

@ -370,7 +370,7 @@ uma_small_alloc(uma_zone_t zone, int bytes, u_int8_t *flags, int wait)
dcache_page_inval(pa);
}
va = (void *)TLB_PHYS_TO_DIRECT(pa);
if ((m->flags & PG_ZERO) == 0)
if ((wait & M_ZERO) && (m->flags & PG_ZERO) == 0)
bzero(va, PAGE_SIZE);
return (va);
}