[haiku-commits] r37502 - haiku/trunk/src/system/kernel/vm
- From: ingo_weinhold@xxxxxx
- To: haiku-commits@xxxxxxxxxxxxx
- Date: Wed, 14 Jul 2010 01:42:31 +0200 (CEST)
Author: bonefish
Date: 2010-07-14 01:42:31 +0200 (Wed, 14 Jul 2010)
New Revision: 37502
Changeset: http://dev.haiku-os.org/changeset/37502
Modified:
haiku/trunk/src/system/kernel/vm/vm_page.cpp
Log:
page_writer(): Added TODO about potential deadlock in case of loop file
systems/devices.
Modified: haiku/trunk/src/system/kernel/vm/vm_page.cpp
===================================================================
--- haiku/trunk/src/system/kernel/vm/vm_page.cpp 2010-07-13 21:47:49 UTC
(rev 37501)
+++ haiku/trunk/src/system/kernel/vm/vm_page.cpp 2010-07-13 23:42:31 UTC
(rev 37502)
@@ -2016,6 +2016,11 @@
}
run.AddPage(page);
+ // TODO: We're possibly adding pages of
different caches and
+ // thus maybe of different underlying file
systems here. This
+ // is a potential problem for loop file
systems/devices, since
+ // we could mark a page busy that would need to
be accessed
+ // when writing back another page, thus causing
a deadlock.
DEBUG_PAGE_ACCESS_END(page);
Other related posts:
- » [haiku-commits] r37502 - haiku/trunk/src/system/kernel/vm - ingo_weinhold
