Aren/NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Don't use division since we are only dealing with powers of 2.

Browse Source
This commit is contained in:
christos 2011-05-25 14:41:46 +00:00
parent 44751c73dc
commit b9972d39ce
1 changed files with 6 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
libexec/ld.elf_so/xmalloc.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: xmalloc.c,v 1.10 2010/12/03 23:07:49 joerg Exp $ */
/* $NetBSD: xmalloc.c,v 1.11 2011/05/25 14:41:46 christos Exp $ */
/*
* Copyright 1996 John D. Polstra.
@ -77,7 +77,7 @@
#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: xmalloc.c,v 1.10 2010/12/03 23:07:49 joerg Exp $");
__RCSID("$NetBSD: xmalloc.c,v 1.11 2011/05/25 14:41:46 christos Exp $");
#endif /* not lint */
#include <stdlib.h>
@ -148,6 +148,7 @@ static union overhead *nextf[NBUCKETS];
static size_t pagesz; /* page size */
static size_t pagebucket; /* page size bucket */
static size_t pageshift; /* page size shift */
#ifdef MSTATS
/*
@ -203,6 +204,7 @@ imalloc(size_t nbytes)
bucket++;
}
pagebucket = bucket;
pageshift = ffs(pagesz) - 1;
}
/*
* Convert amount of memory requested into closest block size
@ -277,13 +279,13 @@ morecore(size_t bucket)
#endif
if (sz < pagesz) {
amt = pagesz;
nblks = amt / sz;
nblks = amt >> (bucket + 3);
} else {
amt = sz + pagesz;
nblks = 1;
}
if (amt > PAGEPOOL_SIZE)
if (morepages(amt/pagesz + NPOOLPAGES) == 0)
if (morepages((amt >> pageshift) + NPOOLPAGES) == 0)
return;
op = (union overhead *)pagepool_start;
pagepool_start += amt;