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Eliminate the special case handling of OBJT_DEVICE objects in

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vm_fault_additional_pages() that was introduced in revision 1.47.  Then
as now, it is unnecessary because dev_pager_haspage() returns zero for
both the number of pages to read ahead and read behind, producing the
same exact behavior by vm_fault_additional_pages() as the special case
handling.

Approved by: re (rwatson)
This commit is contained in:
Alan Cox 2007-07-08 19:42:52 +00:00
parent ea11c140d0
commit d1974c0df1
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=171310
1 changed files with 0 additions and 10 deletions
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10
sys/vm/vm_fault.c
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@ -1231,16 +1231,6 @@ vm_fault_additional_pages(m, rbehind, rahead, marray, reqpage)
object = m->object;
pindex = m->pindex;
/*
* we don't fault-ahead for device pager
*/
if (object->type == OBJT_DEVICE) {
*reqpage = 0;
marray[0] = m;
return 1;
}
cbehind = cahead = 0;
/*