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[PATCH 2/8] Add container pointer on struct page [message #11837 is a reply to message #11834]

Mon, 09 April 2007 12:37

xemul
Messages: 248
Registered: November 2005

Senior Member

Each page is supposed to have an owner - the container
that touched the page first. The owner stays alive during
the page lifetime even if the task that touched the page
dies or moves to another container.

This ownership is the forerunner for the "fair" page sharing
accounting, in which page has as may owners as it is really
used by.

diff -upr linux-2.6.20.orig/include/linux/mm.h linux-2.6.20-2/include/linux/mm.h
--- linux-2.6.20.orig/include/linux/mm.h 2007-03-06 19:09:50.000000000 +0300
+++ linux-2.6.20-2/include/linux/mm.h 2007-04-09 11:26:06.000000000 +0400
@@ -220,6 +220,12 @@ struct vm_operations_struct {
struct mmu_gather;
struct inode;

+#ifdef CONFIG_RSS_CONTAINER
+#define page_container(page) (page->rss_container)
+#else
+#define page_container(page) (NULL)
+#endif
+
#define page_private(page) ((page)->private)
#define set_page_private(page, v) ((page)->private = (v))

diff -upr linux-2.6.20.orig/include/linux/mm_types.h linux-2.6.20-2/include/linux/mm_types.h
--- linux-2.6.20.orig/include/linux/mm_types.h 2007-03-06 19:09:50.000000000 +0300
+++ linux-2.6.20-2/include/linux/mm_types.h 2007-04-09 11:26:06.000000000 +0400
@@ -62,6 +62,9 @@ struct page {
void *virtual; /* Kernel virtual address (NULL if
not kmapped, ie. highmem) */
#endif /* WANT_PAGE_VIRTUAL */
+#ifdef CONFIG_RSS_CONTAINER
+ struct page_container *rss_container;
+#endif
};

#endif /* _LINUX_MM_TYPES_H */

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[Message index]

		[PATCH 0/8] RSS controller based on process containers (v2) By: xemul on Mon, 09 April 2007 12:18
		[PATCH 1/8] Resource counters By: xemul on Mon, 09 April 2007 12:31
		[PATCH 2/8] Add container pointer on struct page By: xemul on Mon, 09 April 2007 12:37
		Re: [PATCH 2/8] Add container pointer on struct page By: xemul on Fri, 13 April 2007 14:48
		Re: [PATCH 2/8] Add container pointer on struct page By: Jean-Pierre Dion on Fri, 13 April 2007 13:56
		[PATCH 3/8] Add container pointer on mm_struct By: xemul on Mon, 09 April 2007 12:43
		[PATCH 4/8] RSS container core By: xemul on Mon, 09 April 2007 12:45
		[PATCH 5/8] RSS accounting hooks over the code By: xemul on Mon, 09 April 2007 12:50
		[PATCH 6/8] Per container OOM killer By: xemul on Mon, 09 April 2007 12:52
		[PATCH 7/8] Page scanner changes needed to implement per-container scanner By: xemul on Mon, 09 April 2007 12:57
		[PATCH 8/8] Per-container pages reclamation By: xemul on Mon, 09 April 2007 12:59
		Re: [PATCH 8/8] Per-container pages reclamation By: xemul on Tue, 24 April 2007 10:29
		Re: [PATCH 8/8] Per-container pages reclamation By: Balbir Singh on Tue, 24 April 2007 11:01
		Re: [PATCH 8/8] Per-container pages reclamation By: xemul on Tue, 24 April 2007 11:37
		Re: [PATCH 8/8] Per-container pages reclamation By: Balbir Singh on Tue, 24 April 2007 09:47
		Re: [PATCH 8/8] Per-container pages reclamation By: Balbir Singh on Wed, 02 May 2007 09:51
		Re: [PATCH 8/8] Per-container pages reclamation By: Balbir Singh on Thu, 17 May 2007 11:31
		Re: [PATCH 8/8] Per-container pages reclamation By: xemul on Mon, 21 May 2007 15:15
		Re: [PATCH 8/8] Per-container pages reclamation By: Balbir Singh on Thu, 24 May 2007 07:59
		Re: [PATCH 0/8] RSS controller based on process containers (v2) By: Peter Zijlstra on Mon, 09 April 2007 15:54
		Re: [PATCH 0/8] RSS controller based on process containers (v2) By: xemul on Tue, 10 April 2007 08:27
		Re: [PATCH 0/8] RSS controller based on process containers (v2) By: Vaidyanathan Srinivas on Thu, 19 April 2007 05:37

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