Page MenuHomeFreeBSD
Files F140162272

D54263.id168243.diff
No OneTemporary
Actions

D54263.id168243.diff
View Options

diff --git a/sys/vm/vm_object.c b/sys/vm/vm_object.c
--- a/sys/vm/vm_object.c
+++ b/sys/vm/vm_object.c
@@ -2200,7 +2200,8 @@
/*
* Account for the charge.
*/
- if (prev_object->cred != NULL) {
+ if (prev_object->cred != NULL &&
+ next_pindex + next_size > prev_object->size) {
/*
* If prev_object was charged, then this mapping,
* although not charged now, may become writable
@@ -2211,12 +2212,14 @@
* entry, and swap reservation for this entry is
* managed in appropriate time.
*/
- if (!reserved && !swap_reserve_by_cred(ptoa(next_size),
- prev_object->cred)) {
+ vm_size_t charge = ptoa(next_pindex + next_size -
+ prev_object->size);
+ if (!reserved &&
+ !swap_reserve_by_cred(charge, prev_object->cred)) {
VM_OBJECT_WUNLOCK(prev_object);
return (FALSE);
}
- prev_object->charge += ptoa(next_size);
+ prev_object->charge += charge;
}
/*
@@ -2226,16 +2229,6 @@
if (next_pindex < prev_object->size) {
vm_object_page_remove(prev_object, next_pindex, next_pindex +
next_size, 0);
-#if 0
- if (prev_object->cred != NULL) {
- KASSERT(prev_object->charge >=
- ptoa(prev_object->size - next_pindex),
- ("object %p overcharged 1 %jx %jx", prev_object,
- (uintmax_t)next_pindex, (uintmax_t)next_size));
- prev_object->charge -= ptoa(prev_object->size -
- next_pindex);
- }
-#endif
}
/*

File Metadata

Mime Type
text/plain
Expires
Mon, Dec 22, 12:31 AM (9 h, 41 m)
Storage Engine
blob
Storage Format
Raw Data
Storage Handle
27041917
Default Alt Text
D54263.id168243.diff (1 KB)

Event Timeline