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Eliminate a possible numerical overflow.

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This commit is contained in:
luoqi 1999-02-19 19:14:48 +00:00
parent fd3fec4801
commit e0559c2622
1 changed files with 7 additions and 7 deletions
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14
sys/vm/vm_pageout.c
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@ -1422,8 +1422,7 @@ vm_daemon()
*/
for (p = allproc.lh_first; p != 0; p = p->p_list.le_next) {
quad_t limit;
vm_offset_t size;
vm_pindex_t limit, size;
/*
* if this is a system process or if we have already
@ -1442,8 +1441,9 @@ vm_daemon()
/*
* get a limit
*/
limit = qmin(p->p_rlimit[RLIMIT_RSS].rlim_cur,
p->p_rlimit[RLIMIT_RSS].rlim_max);
limit = OFF_TO_IDX(
qmin(p->p_rlimit[RLIMIT_RSS].rlim_cur,
p->p_rlimit[RLIMIT_RSS].rlim_max));
/*
* let processes that are swapped out really be
@ -1453,10 +1453,10 @@ vm_daemon()
if ((p->p_flag & P_INMEM) == 0)
limit = 0; /* XXX */
size = vmspace_resident_count(p->p_vmspace) * PAGE_SIZE;
size = vmspace_resident_count(p->p_vmspace);
if (limit >= 0 && size >= limit) {
vm_pageout_map_deactivate_pages(&p->p_vmspace->vm_map,
(vm_pindex_t)(limit >> PAGE_SHIFT) );
vm_pageout_map_deactivate_pages(
&p->p_vmspace->vm_map, limit);
}
}
}