From: Christoph Lameter <clameter@sgi.com>
To: linux-mm@kvack.org
Cc: akpm@osdl.org, Christoph Hellwig <hch@infradead.org>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
"Martin J. Bligh" <mbligh@mbligh.org>,
Arjan van de Ven <arjan@infradead.org>,
Nick Piggin <nickpiggin@yahoo.com.au>,
Matt Mackall <mpm@selenic.com>,
Christoph Lameter <clameter@sgi.com>,
Nigel Cunningham <nigel@nigel.suspend2.net>,
Rik van Riel <riel@redhat.com>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Subject: [RFC 3/7] Add NR_MLOCK ZVC
Date: Mon, 5 Feb 2007 12:52:50 -0800 (PST) [thread overview]
Message-ID: <20070205205250.4500.8247.sendpatchset@schroedinger.engr.sgi.com> (raw)
In-Reply-To: <20070205205235.4500.54958.sendpatchset@schroedinger.engr.sgi.com>
Basic infrastructure to support NR_MLOCK
Add a new ZVC to support NR_MLOCK. NR_MLOCK counts the number of
mlocked pages taken off the LRU. Get rid of wrong calculation
of cache line size in mmzone.h.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Index: current/drivers/base/node.c
===================================================================
--- current.orig/drivers/base/node.c 2007-02-05 11:30:47.000000000 -0800
+++ current/drivers/base/node.c 2007-02-05 11:39:26.000000000 -0800
@@ -60,6 +60,7 @@ static ssize_t node_read_meminfo(struct
"Node %d FilePages: %8lu kB\n"
"Node %d Mapped: %8lu kB\n"
"Node %d AnonPages: %8lu kB\n"
+ "Node %d Mlock: %8lu KB\n"
"Node %d PageTables: %8lu kB\n"
"Node %d NFS_Unstable: %8lu kB\n"
"Node %d Bounce: %8lu kB\n"
@@ -82,6 +83,7 @@ static ssize_t node_read_meminfo(struct
nid, K(node_page_state(nid, NR_FILE_PAGES)),
nid, K(node_page_state(nid, NR_FILE_MAPPED)),
nid, K(node_page_state(nid, NR_ANON_PAGES)),
+ nid, K(node_page_state(nid, NR_MLOCK)),
nid, K(node_page_state(nid, NR_PAGETABLE)),
nid, K(node_page_state(nid, NR_UNSTABLE_NFS)),
nid, K(node_page_state(nid, NR_BOUNCE)),
Index: current/fs/proc/proc_misc.c
===================================================================
--- current.orig/fs/proc/proc_misc.c 2007-02-05 11:30:47.000000000 -0800
+++ current/fs/proc/proc_misc.c 2007-02-05 11:39:26.000000000 -0800
@@ -166,6 +166,7 @@ static int meminfo_read_proc(char *page,
"Writeback: %8lu kB\n"
"AnonPages: %8lu kB\n"
"Mapped: %8lu kB\n"
+ "Mlock: %8lu KB\n"
"Slab: %8lu kB\n"
"SReclaimable: %8lu kB\n"
"SUnreclaim: %8lu kB\n"
@@ -196,6 +197,7 @@ static int meminfo_read_proc(char *page,
K(global_page_state(NR_WRITEBACK)),
K(global_page_state(NR_ANON_PAGES)),
K(global_page_state(NR_FILE_MAPPED)),
+ K(global_page_state(NR_MLOCK)),
K(global_page_state(NR_SLAB_RECLAIMABLE) +
global_page_state(NR_SLAB_UNRECLAIMABLE)),
K(global_page_state(NR_SLAB_RECLAIMABLE)),
Index: current/include/linux/mmzone.h
===================================================================
--- current.orig/include/linux/mmzone.h 2007-02-05 11:30:47.000000000 -0800
+++ current/include/linux/mmzone.h 2007-02-05 11:45:12.000000000 -0800
@@ -47,17 +47,16 @@ struct zone_padding {
#endif
enum zone_stat_item {
- /* First 128 byte cacheline (assuming 64 bit words) */
NR_FREE_PAGES,
NR_INACTIVE,
NR_ACTIVE,
+ NR_MLOCK, /* Mlocked pages */
NR_ANON_PAGES, /* Mapped anonymous pages */
NR_FILE_MAPPED, /* pagecache pages mapped into pagetables.
only modified from process context */
NR_FILE_PAGES,
NR_FILE_DIRTY,
NR_WRITEBACK,
- /* Second 128 byte cacheline */
NR_SLAB_RECLAIMABLE,
NR_SLAB_UNRECLAIMABLE,
NR_PAGETABLE, /* used for pagetables */
Index: current/mm/vmstat.c
===================================================================
--- current.orig/mm/vmstat.c 2007-02-05 11:30:47.000000000 -0800
+++ current/mm/vmstat.c 2007-02-05 11:43:38.000000000 -0800
@@ -434,6 +434,7 @@ static const char * const vmstat_text[]
"nr_free_pages",
"nr_active",
"nr_inactive",
+ "nr_mlock",
"nr_anon_pages",
"nr_mapped",
"nr_file_pages",
--
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next prev parent reply other threads:[~2007-02-05 20:52 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-05 20:52 [RFC 0/7] Move mlocked pages off the LRU and track them Christoph Lameter
2007-02-05 20:52 ` [RFC 1/7] Make try_to_unmap return a special exit code Christoph Lameter
2007-02-05 20:52 ` [RFC 2/7] Add PageMlocked() page state bit and lru infrastructure Christoph Lameter
2007-02-05 20:52 ` Christoph Lameter [this message]
2007-02-05 20:52 ` [RFC 4/7] Logic to move mlocked pages Christoph Lameter
2007-02-05 20:53 ` [RFC 5/7] Consolidate new anonymous page code paths Christoph Lameter
2007-02-05 20:53 ` [RFC 6/7] Avoid putting new mlocked anonymous pages on LRU Christoph Lameter
2007-02-05 20:53 ` [RFC 7/7] Opportunistically move mlocked pages off the LRU Christoph Lameter
2007-02-06 16:04 ` [RFC 0/7] Move mlocked pages off the LRU and track them Lee Schermerhorn
2007-02-06 16:50 ` Larry Woodman
2007-02-06 19:51 ` Andrew Morton
2007-02-07 10:51 ` Larry Woodman
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