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Change the type of the paging_in_progress refcounter from u_short to

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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
This commit is contained in:
Konstantin Belousov 2012-01-10 18:05:44 +00:00
parent b9288caaf6
commit 5dda2db9c8
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=229934
1 changed files with 1 additions and 1 deletions
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sys/vm/vm_object.h
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@ -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 */