Author: kib
Date: Tue Jan 10 18:05:44 2012
New Revision: 229934
URL: http://svn.freebsd.org/changeset/base/229934
Log:
Change the type of the paging_in_progress refcounter from u_short to
u_int. With the auto-sized buffer cache on the modern machines, UFS
metadata can generate more the 65535 pages belonging to the buffers
undergoing i/o, overflowing the counter.
Reported and tested by: jimharris
Reviewed by: alc
MFC after: 1 week
Modified:
head/sys/vm/vm_object.h
Modified: head/sys/vm/vm_object.h
==============================================================================
--- head/sys/vm/vm_object.h Tue Jan 10 15:29:03 2012 (r229933)
+++ head/sys/vm/vm_object.h Tue Jan 10 18:05:44 2012 (r229934)
@@ -96,7 +96,7 @@ struct vm_object {
objtype_t type; /* type of pager */
u_short flags; /* see below */
u_short pg_color; /* (c) color of first page in obj */
- u_short paging_in_progress; /* Paging (in or out) so don't collapse
or destroy */
+ u_int paging_in_progress; /* Paging (in or out) so don't collapse
or destroy */
int resident_page_count; /* number of resident pages */
struct vm_object *backing_object; /* object that I'm a shadow of */
vm_ooffset_t backing_object_offset;/* Offset in backing object */
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