On Mon, Mar 04, 2013 at 09:54:26AM +0800, Li Haifeng wrote:
When a page cache is to reclaim, we should to decide whether the page
cache is free.
IMO, the condition whether a page cache is free should be 3 in page
frame reclaiming. The reason lists as below.
When page is allocated, the
On Thu, Nov 29, 2012 at 04:30:12PM +0100, Thorsten Leemhuis wrote:
Mel Gorman wrote on 29.11.2012 00:54:
On Wed, Nov 28, 2012 at 02:52:15PM -0800, Andrew Morton wrote:
On Wed, 28 Nov 2012 10:13:59 +
Mel Gorman mgor...@suse.de wrote:
Based on the reports I've seen I expect the
On Thu, Nov 29, 2012 at 09:54:14AM -0500, George Spelvin wrote:
Mel Gorman mgor...@suse.de wrote:
On Tue, Nov 27, 2012 at 04:25:14PM -0500, George Spelvin wrote:
Well, it just made it to 24 hours,
it did before. I'm going to wait a couple more days before declaring
victory, but it looks
to be suitable for compaction.
Mel? Rik?
---
From: Johannes Weiner han...@cmpxchg.org
Subject: [patch] mm: vmscan: do not keep kswapd looping forever due
to individual uncompactable zones
When a zone meets its high watermark and is compactable in case of
higher order allocations, it contributes
caches
(echo 3 /proc/sys/vm/drop_cache)
(After that I've had over 1G free memory)
Any chance you could retry with this patch on top?
Thanks!
---
From: Johannes Weiner han...@cmpxchg.org
Subject: [patch] mm: vmscan: do not keep kswapd looping forever due
to individual uncompactable zones
When
]
---
From: Johannes Weiner han...@cmpxchg.org
Subject: [patch] mm: vmscan: do not keep kswapd looping forever due
to individual uncompactable zones
When a zone meets its high watermark and is compactable in case of
higher order allocations, it contributes to the percentage
On Tue, Dec 04, 2012 at 10:15:09AM +0100, Jiri Slaby wrote:
On 12/04/2012 10:05 AM, Zdenek Kabelac wrote:
Dne 3.12.2012 20:18, Johannes Weiner napsal(a):
Szia Zdenek,
On Mon, Dec 03, 2012 at 04:23:15PM +0100, Zdenek Kabelac wrote:
Ok, bad news - I've been hit by kswapd0 loop again
On Tue, Dec 04, 2012 at 10:05:29AM +0100, Zdenek Kabelac wrote:
Dne 3.12.2012 20:18, Johannes Weiner napsal(a):
Szia Zdenek,
On Mon, Dec 03, 2012 at 04:23:15PM +0100, Zdenek Kabelac wrote:
Ok, bad news - I've been hit by kswapd0 loop again -
my kernel git commit
On Tue, Dec 04, 2012 at 05:22:38PM +0100, Jiri Slaby wrote:
On 12/04/2012 05:11 PM, Johannes Weiner wrote:
Any chance you could retry with this patch on top?
It does not apply to -next :/. Should I try anything else?
The COMPACTION_BUILD changed to IS_ENABLED(CONFIG_COMPACTION), below
On Mon, Dec 03, 2012 at 02:42:08PM -0500, Johannes Weiner wrote:
On Mon, Dec 03, 2012 at 09:30:12AM +0100, Thorsten Leemhuis wrote:
John was able to reproduce the problem quickly with a kernel that
contained the patch from your mail. For details see
[stripped: all the glory details
On Fri, Feb 08, 2013 at 12:37:13PM +0900, Chanho Min wrote:
I started looking for workloads to profile but then lost interest.
The current code can theoretically end up walking through a lot of
partially used blocks if a string of allocations never fit any of
them. The number of these blocks
On Thu, Jan 03, 2013 at 06:54:18PM +0100, Michal Hocko wrote:
Now that per-node-zone-priority iterator caches memory cgroups rather
than their css ids we have to be careful and remove them from the
iterator when they are on the way out otherwise they might hang for
unbounded amount of time
On Mon, Feb 11, 2013 at 01:43:03PM +1030, Rusty Russell wrote:
I am writing an app which really wants to know if a file is on the
disk or not (ie. do I need to sync?).
When the page is under writeback, it's not necessarily on disk yet,
but you also don't need to sync. Which semantics make more
On Mon, Feb 11, 2013 at 04:16:49PM +0100, Michal Hocko wrote:
On Fri 08-02-13 14:33:18, Johannes Weiner wrote:
[...]
for each in hierarchy:
for each node:
for each zone:
for each reclaim priority:
every time a cgroup is destroyed. I don't think such a hammer
On Mon, Feb 11, 2013 at 08:29:29PM +0100, Michal Hocko wrote:
On Mon 11-02-13 12:56:19, Johannes Weiner wrote:
On Mon, Feb 11, 2013 at 04:16:49PM +0100, Michal Hocko wrote:
Maybe we could keep the counter per memcg but that would mean that we
would need to go up the hierarchy as well. We
On Mon, Feb 11, 2013 at 10:27:56PM +0100, Michal Hocko wrote:
On Mon 11-02-13 14:58:24, Johannes Weiner wrote:
On Mon, Feb 11, 2013 at 08:29:29PM +0100, Michal Hocko wrote:
On Mon 11-02-13 12:56:19, Johannes Weiner wrote:
On Mon, Feb 11, 2013 at 04:16:49PM +0100, Michal Hocko wrote
then it
should also be included in -stable back as far as 3.0-stable.
Cc: sta...@vger.kernel.org
Signed-off-by: Mel Gorman mgor...@suse.de
Acked-by: Johannes Weiner han...@cmpxchg.org
Agreed also on the backporting to -stable as far as possible.
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On Tue, Feb 12, 2013 at 10:54:19AM +0100, Michal Hocko wrote:
On Mon 11-02-13 17:39:43, Johannes Weiner wrote:
On Mon, Feb 11, 2013 at 10:27:56PM +0100, Michal Hocko wrote:
On Mon 11-02-13 14:58:24, Johannes Weiner wrote:
That way, if the dead count gives the go-ahead, you KNOW
Michal Hocko mho...@suse.cz wrote:
On Tue 12-02-13 10:10:02, Johannes Weiner wrote:
On Tue, Feb 12, 2013 at 10:54:19AM +0100, Michal Hocko wrote:
On Mon 11-02-13 17:39:43, Johannes Weiner wrote:
On Mon, Feb 11, 2013 at 10:27:56PM +0100, Michal Hocko wrote:
On Mon 11-02-13 14:58:24
Michal Hocko mho...@suse.cz wrote:
On Tue 12-02-13 17:13:32, Michal Hocko wrote:
On Tue 12-02-13 16:43:30, Michal Hocko wrote:
[...]
The example was not complete:
Wait a moment. But what prevents from the following race?
rcu_read_lock()
cgroup_next_descendant_pre
On Tue, Feb 12, 2013 at 08:10:51AM -0800, Paul E. McKenney wrote:
On Tue, Feb 12, 2013 at 04:43:30PM +0100, Michal Hocko wrote:
On Tue 12-02-13 10:10:02, Johannes Weiner wrote:
On Tue, Feb 12, 2013 at 10:54:19AM +0100, Michal Hocko wrote:
On Mon 11-02-13 17:39:43, Johannes Weiner wrote
On Tue, Feb 12, 2013 at 06:12:16PM +0100, Michal Hocko wrote:
On Tue 12-02-13 11:41:03, Johannes Weiner wrote:
Michal Hocko mho...@suse.cz wrote:
On Tue 12-02-13 17:13:32, Michal Hocko wrote:
On Tue 12-02-13 16:43:30, Michal Hocko wrote:
[...]
The example was not complete
On Tue, Feb 12, 2013 at 10:31:48AM -0800, Paul E. McKenney wrote:
On Tue, Feb 12, 2013 at 12:25:26PM -0500, Johannes Weiner wrote:
On Tue, Feb 12, 2013 at 08:10:51AM -0800, Paul E. McKenney wrote:
On Tue, Feb 12, 2013 at 04:43:30PM +0100, Michal Hocko wrote:
On Tue 12-02-13 10:10:02
code).
Signed-off-by: Michal Hocko mho...@suse.cz
Acked-by: Johannes Weiner han...@cmpxchg.org
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Please
with other controller specific parts.
This patch wrappes the current memcg_stock initialization code into a
helper calls it from the controller subsystem initialization code.
Signed-off-by: Michal Hocko mho...@suse.cz
Acked-by: Johannes Weiner han...@cmpxchg.org
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-by: Michal Hocko mho...@suse.cz
It seems a little strange to document that the subsystem init function
should be used for initializing the subsystem. But your new comment
is better than the old comment :-)
Acked-by: Johannes Weiner han...@cmpxchg.org
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On Sat, Feb 02, 2013 at 12:25:44PM +0400, Konstantin Khlebnikov wrote:
Johannes Weiner wrote:
In shmem_find_get_pages_and_swap, use the faster radix tree iterator
construct from 78c1d78 radix-tree: introduce bit-optimized iterator.
Signed-off-by: Johannes Weinerhan...@cmpxchg.org
Hmm, ACK
On Wed, Feb 06, 2013 at 01:09:55AM +0800, Zhang Yanfei wrote:
Function nr_free_zone_pages, nr_free_buffer_pages and nr_free_pagecache_pages
are horribly badly named, they count present_pages - pages_high within zones
instead of free pages, so why not rename them to reasonable names, not
Hi Chanho,
On Thu, Feb 07, 2013 at 11:27:54AM +0900, Chanho Min wrote:
There is no reason to maintain alloc_map in the vmap_block.
The use of alloc_map may require heavy bitmap operation sometimes.
In the worst-case, We need 1024 for-loops to find 1 free bit and
thus cause overhead.
On Tue, Jan 29, 2013 at 09:51:04AM +0100, Michal Hocko wrote:
Ying has noticed me (via private email) that the patch is bogus because
the break out condition is incorrect. She said she would post a fix
but she's been probably too busy. If she doesn't oppose, could you add
the follow up fix,
Inodes are added to the head of the superblock LRU list and reclaimed
from the tail. If trylocking an inode during reclaim fails, it has to
be moved to the head of the list, not the tail, to prevent spinning on
it.
Signed-off-by: Johannes Weiner han...@cmpxchg.org
---
fs/inode.c | 4 ++--
1
: the stack expansion mlocks only the newly
expanded range and so will not result in recursive expansion.
Reported-by: Al Viro v...@zeniv.linux.org.uk
Signed-off-by: Johannes Weiner han...@cmpxchg.org
---
mm/mlock.c | 4
1 file changed, 4 insertions(+)
diff --git a/mm/mlock.c b/mm/mlock.c
situations.
Get rid of inactive_file_is_low_global() and
mem_cgroup_inactive_file_is_low() by using get_lru_size() and compare
the numbers in common code.
Signed-off-by: Johannes Weiner han...@cmpxchg.org
---
include/linux/memcontrol.h | 7 ---
mm/memcontrol.c| 11 ---
mm/vmscan.c
In shmem_find_get_pages_and_swap, use the faster radix tree iterator
construct from 78c1d78 radix-tree: introduce bit-optimized iterator.
Signed-off-by: Johannes Weiner han...@cmpxchg.org
---
mm/shmem.c | 25 -
1 file changed, 12 insertions(+), 13 deletions(-)
diff --git
On Tue, Feb 26, 2013 at 10:47:31AM +, Mel Gorman wrote:
On Fri, Feb 22, 2013 at 12:56:34PM -0500, Johannes Weiner wrote:
SNIP
: We have a server workload wherein machines with 100G+ of free memory
: (used by page cache), scattered but frequent random io reads from 12
On Mon, Feb 11, 2013 at 02:12:39PM -0800, Andrew Morton wrote:
Also, having to mmap the file to be able to query pagecache state is a
hack. Whatever happened to the fincore() patch?
I don't know, but how about this one:
---
From: Johannes Weiner han...@cmpxchg.org
Subject: [patch 1/2] mm
Signed-off-by: Johannes Weiner han...@cmpxchg.org
---
arch/x86/syscalls/syscall_64.tbl | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86/syscalls/syscall_64.tbl b/arch/x86/syscalls/syscall_64.tbl
index 38ae65d..c9ac047 100644
--- a/arch/x86/syscalls/syscall_64.tbl
+++ b/arch/x86
On Fri, Feb 15, 2013 at 01:14:51PM -0800, Andrew Morton wrote:
On Fri, 15 Feb 2013 01:34:50 -0500
Johannes Weiner han...@cmpxchg.org wrote:
On Mon, Feb 11, 2013 at 02:12:39PM -0800, Andrew Morton wrote:
Also, having to mmap the file to be able to query pagecache state is a
hack
On Fri, Feb 15, 2013 at 01:27:38PM -0800, Andrew Morton wrote:
On Fri, 15 Feb 2013 01:34:50 -0500
Johannes Weiner han...@cmpxchg.org wrote:
+ * The status is returned in a vector of bytes. The least significant
+ * bit of each byte is 1 if the referenced page is in memory, otherwise
On Sat, Feb 16, 2013 at 02:53:43PM +1030, Rusty Russell wrote:
Andrew Morton a...@linux-foundation.org writes:
On Fri, 15 Feb 2013 18:13:04 -0500
Johannes Weiner han...@cmpxchg.org wrote:
I dunno. The byte vector might not be optimal but its worst cases
seem more attractive, is just
being used there: rework it with
page != swapcache.
Signed-off-by: Hugh Dickins hu...@google.com
Acked-by: Johannes Weiner han...@cmpxchg.org
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On Tue, Feb 19, 2013 at 09:19:27PM -0800, dormando wrote:
The problem is that adding this tunable will constrain future VM
implementations. We will forever need to at least retain the
pseudo-file. We will also need to make some effort to retain its
behaviour.
It would of course be
...@google.com
Cc: Mel Gorman m...@csn.ul.ie
Cc: Rik van Riel r...@redhat.com
Cc: Johannes Weiner han...@cmpxchg.org
Cc: Michel Lespinasse wal...@google.com
Cc: Ying Han ying...@google.com
Cc: sta...@vger.kernel.org
Acked-by: Johannes Weiner han...@cmpxchg.org
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page_evictable() itself! They're dealing with a freshly
allocated anonymous page, which has no mapping and cannot be mlocked yet.
Signed-off-by: Hugh Dickins hu...@google.com
Cc: Mel Gorman m...@csn.ul.ie
Cc: Rik van Riel r...@redhat.com
Cc: Johannes Weiner han...@cmpxchg.org
Cc: Michel
On Tue, Sep 18, 2012 at 08:55:21PM -0700, Hugh Dickins wrote:
We had thought that pages could no longer get freed while still marked
as mlocked; but Johannes Weiner posted this program to demonstrate that
truncating an mlocked private file mapping containing COWed pages is
still mishandled
Cc: Mel Gorman m...@csn.ul.ie
Cc: Rik van Riel r...@redhat.com
Cc: Johannes Weiner han...@cmpxchg.org
Cc: Michel Lespinasse wal...@google.com
Cc: Ying Han ying...@google.com
Acked-by: Johannes Weiner han...@cmpxchg.org
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On Wed, Sep 19, 2012 at 01:04:56PM -0400, KOSAKI Motohiro wrote:
On Wed, Sep 19, 2012 at 3:45 AM, Minchan Kim minc...@kernel.org wrote:
When I looked at zone stat mismatch problem, I found
migrate_to_node doesn't decrease NR_ISOLATED_[ANON|FILE]
if check_range fails.
This is a bit
usecase
which might pass to MPOL_MF_STRICT.
Cc: KOSAKI Motohiro kosaki.motoh...@jp.fujitsu.com
Cc: Mel Gorman mgor...@suse.de
Cc: Christoph Lameter c...@linux.com
Cc: David Rientjes rient...@google.com
Cc: Vasiliy Kulikov sego...@gmail.com
Suggested-by: Johannes Weiner han...@cmpxchg.org
Signed
On Wed, Sep 19, 2012 at 02:52:53PM -0700, Hugh Dickins wrote:
On Wed, 19 Sep 2012, Johannes Weiner wrote:
On Tue, Sep 18, 2012 at 08:55:21PM -0700, Hugh Dickins wrote:
--- 3.6-rc6.orig/mm/memory.c 2012-09-18 15:38:08.0 -0700
+++ 3.6-rc6/mm/memory.c 2012-09-18 17:51
On Fri, Sep 21, 2012 at 08:24:08AM +0900, Minchan Kim wrote:
On Thu, Sep 20, 2012 at 11:41:11AM -0400, Johannes Weiner wrote:
On Thu, Sep 20, 2012 at 08:51:56AM +0900, Minchan Kim wrote:
From: Minchan Kim minc...@kernel.org
Date: Thu, 20 Sep 2012 08:39:52 +0900
Subject: [PATCH] mm
if that turns out to be wrong.
Signed-off-by: Hugh Dickins hu...@google.com
Cc: Mel Gorman m...@csn.ul.ie
Cc: Rik van Riel r...@redhat.com
Cc: Johannes Weiner han...@cmpxchg.org
Cc: Michel Lespinasse wal...@google.com
Cc: Ying Han ying...@google.com
Acked-by: Johannes Weiner han...@cmpxchg.org
Hi,
On Thu, Sep 13, 2012 at 03:14:28PM +0800, Wen Congyang wrote:
root_mem_cgroup-info.nodeinfo is initialized when the system boots.
But NODE_DATA(nid) is null if the node is not onlined, so
root_mem_cgroup-info.nodeinfo[nid]-zoneinfo[zone].lruvec.zone contains
an invalid pointer. If we use
-by: Johannes Weiner han...@cmpxchg.org
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On Thu, Sep 13, 2012 at 06:36:34PM -0700, Hugh Dickins wrote:
On Thu, 13 Sep 2012, Johannes Weiner wrote:
On Thu, Sep 13, 2012 at 03:14:28PM +0800, Wen Congyang wrote:
root_mem_cgroup-info.nodeinfo is initialized when the system boots.
But NODE_DATA(nid) is null if the node is not onlined
On Wed, Jul 25, 2012 at 11:57:13AM -0700, Andrew Morton wrote:
On Wed, 25 Jul 2012 09:35:03 +0200
Johannes Weiner han...@cmpxchg.org wrote:
As this is unlikely to reappear in this merge window, the conflict
resolution is quite simple. All that's needed is remove the 3 hunks
from my
On Mon, Jul 30, 2012 at 12:28:35AM +0200, Sasha Levin wrote:
Hi all,
I was poking around /dev/kmem related code, and noticed the following in
mmap_kmem():
/* Turn a kernel-virtual address into a physical page frame */
pfn = __pa((u64)vma-vm_pgoff PAGE_SHIFT) PAGE_SHIFT;
On Thu, Aug 02, 2012 at 09:06:41AM -0500, Christoph Lameter wrote:
On Thu, 2 Aug 2012, Glauber Costa wrote:
diff --git a/mm/slub.c b/mm/slub.c
index e517d43..9ca4e20 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -3453,7 +3453,7 @@ void kfree(const void *x)
if
On Thu, Aug 02, 2012 at 08:51:31PM +0400, Glauber Costa wrote:
On 08/02/2012 08:42 PM, Johannes Weiner wrote:
On Thu, Aug 02, 2012 at 09:06:41AM -0500, Christoph Lameter wrote:
On Thu, 2 Aug 2012, Glauber Costa wrote:
diff --git a/mm/slub.c b/mm/slub.c
index e517d43..9ca4e20 100644
function and then moves the data
automatically when it is a literal, but I couldn't find mechanisms that
allow this. Anyone of you got an idea?
What do you think in general?
Hannes
---
From: Johannes Weiner [EMAIL PROTECTED]
Sectionized printk wrappers
Introduce printk wrappers
Hi Sam,
Sam Ravnborg [EMAIL PROTECTED] writes:
On Mon, Feb 04, 2008 at 04:48:34PM +0100, Johannes Weiner wrote:
Hi,
current approaches to have printk format strings in the corresponding
data section to the function they appear in look like the following (at
least what I have seen so far
Hi,
Andrew Morton [EMAIL PROTECTED] writes:
Question is: why do people keep adding new ones when they are so easy to
detect and fix?
Asnwer: because neither they nor their patch integrators are doing adequate
compilation testing.
How about adding an Untested-by tag for psychological
Hi,
Andi Kleen [EMAIL PROTECTED] writes:
[...]
--- linux.orig/include/asm-x86/pgtable-2level.h
+++ linux/include/asm-x86/pgtable-2level.h
@@ -75,6 +75,8 @@ static inline int pte_exec_kernel(pte_t
#define pgoff_to_pte(off) \
((pte_t) { .pte_low = (((off) 0x1f) 1) + (((off) 5) 8)
With configs where neither the dock nor the bay subdriver is enabled,
_sta() is defined but never used. Define it conditionally.
Signed-off-by: Johannes Weiner [EMAIL PROTECTED]
---
drivers/misc/thinkpad_acpi.c |2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/drivers
Define _sta() helper conditionally; also remove its prototype from
the internal header and also some other unneeded ones.
This function is only needed when the bay or the dock subdriver is
enabled. Otherwise, gcc complains about an unused static function.
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The helper functions are defined at the top of the C file so they are
known within the definition of the callsites below anyway.
Signed-off-by: Johannes Weiner [EMAIL PROTECTED]
---
drivers/misc/thinkpad_acpi.h | 10 --
1 files changed, 0 insertions(+), 10 deletions(-)
diff --git
Hi,
Ingo Molnar [EMAIL PROTECTED] writes:
* [EMAIL PROTECTED] [EMAIL PROTECTED] wrote:
+#ifdef CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE
+fs_initcall(cpufreq_gov_dbs_init);
+#else
module_init(cpufreq_gov_dbs_init);
+#endif
silly question: why not unconditional fs_initcall() ?
Would
Hi,
is there any reason why kfree() takes a const pointer just to degrade it
with the call to slab_free()/__cache_free() again? The promise that the
pointee is not modified is just bogus in this case, anyway, isn't it?
Hannes
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Hi Henrique,
Henrique de Moraes Holschuh [EMAIL PROTECTED] writes:
On Wed, 16 Jan 2008, Johannes Weiner wrote:
Define _sta() helper conditionally; also remove its prototype from
the internal header and also some other unneeded ones.
This function is only needed when the bay or the dock
Hi,
Linus Torvalds [EMAIL PROTECTED] writes:
[...]
const is a pointer type issue, and is meant to make certain mis-uses
more visible at compile time. It has *no* other meaning, and anybody who
thinks it has is just setting himself up for problems.
[...]
- From a very obvious and very
Hi,
Christoph Lameter [EMAIL PROTECTED] writes:
On Wed, 16 Jan 2008, Johannes Weiner wrote:
So if I got it right and you actually modify the memory you only got a
const pointer to, you reach a level where you _have to_ break this
policy and cast to a non-const pointer, as it is currently
Hi,
Christoph Lameter [EMAIL PROTECTED] writes:
On Wed, 16 Jan 2008, Johannes Weiner wrote:
So if I got it right and you actually modify the memory you only got a
const pointer to, you reach a level where you _have to_ break this
policy and cast to a non-const pointer, as it is currently
Hi Ingo,
with the commit
42c9c06bec2f48002d5b6573c8700461120070a9
x86: ACPI: use ioremap_early() instead of __va()/__pa()
you made __acpi_map_table(), which is non-__init, call early_ioremap()
which is __init on 64bit (init_64.c) but non-__init on 32bit
(ioremap_32.c). This
Hi,
David Brown [EMAIL PROTECTED] writes:
+Fortunately, modern versions of GNU emacs support different indentation
+styles. If you want to use the Linux kernel style for all C code, place
+the following in your .emacs file:
+
+(setq c-default-style linux)
This variable is not defined when
Hi,
Bert Wesarg [EMAIL PROTECTED] writes:
On Jan 20, 2008 12:25 PM, Jan Engelhardt [EMAIL PROTECTED] wrote:
On Jan 20 2008 20:48, Rusty Russell wrote:
+ */
+#define kthread_create(threadfn, data, namefmt...) ({ \
+ int (*_threadfn)(typeof(data)) = (threadfn);\
+
Hi,
Pavel Machek [EMAIL PROTECTED] writes:
diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c
index 29cf145..d830ed2 100644
--- a/drivers/rtc/rtc-cmos.c
+++ b/drivers/rtc/rtc-cmos.c
@@ -78,7 +78,7 @@ static inline int is_intr(u8 rtc_intr)
Hi Christoph,
On Tue, Nov 06, 2007 at 05:11:34PM -0800, Christoph Lameter wrote:
@@ -613,11 +606,7 @@ static void shrink_dcache_for_umount_sub
spin_lock(dcache_lock);
list_for_each_entry(loop, dentry-d_subdirs,
Hi Christoph,
On Tue, Nov 06, 2007 at 05:11:37PM -0800, Christoph Lameter wrote:
--- linux-2.6.orig/include/linux/slub_def.h 2007-11-06 12:36:28.0
-0800
+++ linux-2.6/include/linux/slub_def.h2007-11-06 12:37:44.0
-0800
@@ -53,6 +53,13 @@ struct kmem_cache {
Hi Christoph,
On Tue, Nov 06, 2007 at 05:11:42PM -0800, Christoph Lameter wrote:
Index: linux-2.6/include/linux/slab.h
===
--- linux-2.6.orig/include/linux/slab.h 2007-11-06 12:37:51.0
-0800
+++
Hi,
is there any reason, why acpi_battery_get_property() should call
acpi_battery_update() at all?
Hannes
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Hi,
On Thu, Nov 08, 2007 at 07:11:53PM +0300, Alexey Starikovskiy wrote:
Rafael J. Wysocki wrote:
On Thursday, 8 of November 2007, Johannes Weiner wrote:
Hi,
is there any reason, why acpi_battery_get_property() should call
acpi_battery_update() at all?
Alex?
If someone wants to read
Hi Alex,
On Thu, Nov 08, 2007 at 07:35:23PM +0300, Alexey Starikovskiy wrote:
Rafael J. Wysocki wrote:
On Thursday, 8 of November 2007, Johannes Weiner wrote:
Hi,
is there any reason, why acpi_battery_get_property() should call
acpi_battery_update() at all?
Alex?
Do you mean why should
On Sun, Jul 08, 2012 at 10:44:59PM +0800, Fengguang Wu wrote:
On Tue, Jul 03, 2012 at 03:31:26PM +0900, KAMEZAWA Hiroyuki wrote:
(2012/06/28 20:05), Sha Zhengju wrote:
From: Sha Zhengju handai@taobao.com
Similar to dirty page, we add per cgroup writeback pages accounting. The
On Mon, Jul 09, 2012 at 11:42:12AM +0900, Kamezawa Hiroyuki wrote:
(2012/07/05 9:44), Johannes Weiner wrote:
@@ -3278,10 +3283,11 @@ void mem_cgroup_end_migration(struct mem_cgroup
*memcg,
unused = oldpage;
}
anon = PageAnon(used);
- __mem_cgroup_uncharge_common
, nor while locked. So it's not an error,
and these residual pages are easily freed once pressure demands.]
Signed-off-by: Hugh Dickins hu...@google.com
Cc: Johannes Weiner han...@cmpxchg.org
Cc: KAMEZAWA Hiroyuki kamezawa.hir...@jp.fujitsu.com
Cc: Michal Hocko mho...@suse.cz
Acked-by: Johannes
Cc: Johannes Weiner han...@cmpxchg.org
Cc: KAMEZAWA Hiroyuki kamezawa.hir...@jp.fujitsu.com
Cc: Michal Hocko mho...@suse.cz
Acked-by: Johannes Weiner han...@cmpxchg.org
I'm rebasing my (un)charge series on top of these, thanks. It only
annihilates 3/11 and leaves the rest alone--line numbers
width before use.
Signed-off-by: Yinghai Lu ying...@kernel.org
Signed-off-by: Johannes Weiner han...@cmpxchg.org
---
mm/sparse.c |2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/mm/sparse.c b/mm/sparse.c
index 6a4bf91..e861397 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
-off-by: Johannes Weiner han...@cmpxchg.org
Cc: sta...@kernel.org [3.3, 3.4]
---
include/linux/bootmem.h |5 +
mm/bootmem.c|2 +-
mm/nobootmem.c |2 +-
mm/sparse.c | 18 +-
4 files changed, 20 insertions(+), 7 deletions(-)
diff
On Tue, Jul 10, 2012 at 05:01:47PM -0700, a...@linux-foundation.org wrote:
The mm-of-the-moment snapshot 2012-07-10-16-59 has been uploaded to
http://www.ozlabs.org/~akpm/mmotm/
The automatic git import is going again, too, and can be found at
Hi,
second version of tiny charge/uncharge improvements, with incorporated
feedback and acks added (thanks guys).
changes:
o fixed the 03/10 PageSwapCache check in end_migration(), spotted by Kame
o dropped the v1 03/11 shmem patch in favor of Hugh's cleanup
o included default group charging
around
checks that are only required when swapping in anon pages.
Signed-off-by: Johannes Weiner han...@cmpxchg.org
Acked-by: KAMEZAWA Hiroyuki kamezawa.hir...@jp.fujitsu.com
Acked-by: Michal Hocko mho...@suse.cz
---
mm/memcontrol.c | 24 +++-
1 files changed, 15 insertions
condition'
added a stable PageSwapCache check under the page lock in the
do_swap_page() before calling the memory controller, so it's
unuse_pte()'s pte_same() that may fail.
Signed-off-by: Johannes Weiner han...@cmpxchg.org
Acked-by: KAMEZAWA Hiroyuki kamezawa.hir...@jp.fujitsu.com
Acked-by: Michal
and commit_charge are called under the
same page lock section, the PageCgroupUsed() check might as well
happen before the counter charging, let alone reclaim.
Signed-off-by: Johannes Weiner han...@cmpxchg.org
Acked-by: KAMEZAWA Hiroyuki kamezawa.hir...@jp.fujitsu.com
Acked-by: Michal Hocko mho...@suse.cz
-by: Johannes Weiner han...@cmpxchg.org
Acked-by: KAMEZAWA Hiroyuki kamezawa.hir...@jp.fujitsu.com
Acked-by: Michal Hocko mho...@suse.cz
---
mm/swapfile.c |3 +--
1 files changed, 1 insertions(+), 2 deletions(-)
diff --git a/mm/swapfile.c b/mm/swapfile.c
index 64408be..75881ca 100644
--- a/mm
Not all uncharge paths need to check if the page is swapcache, some of
them can know for sure.
Push down the check into all callsites of uncharge_common() so that
the patch that removes some of them is more obvious.
Signed-off-by: Johannes Weiner han...@cmpxchg.org
Acked-by: Michal Hocko mho
that was going to be replaced.
The replacement page will still show up temporarily in the rss/cache
statistics, this can be fixed in a later patch as it's less urgent.
Reported-by: David Rientjes rient...@google.com
Signed-off-by: Johannes Weiner han...@cmpxchg.org
Acked-by: KAMEZAWA Hiroyuki
. Clarify that the root memcg is charged in
this case.
Signed-off-by: Johannes Weiner han...@cmpxchg.org
Acked-by: KAMEZAWA Hiroyuki kamezawa.hir...@jp.fujitsu.com
Acked-by: Michal Hocko mho...@suse.cz
---
mm/memcontrol.c |7 +--
1 files changed, 1 insertions(+), 6 deletions(-)
diff --git a/mm
shmem page charges have not needed a separate charge type to tell them
from regular file pages since 08e552c 'memcg: synchronized LRU'.
Signed-off-by: Johannes Weiner han...@cmpxchg.org
Acked-by: KAMEZAWA Hiroyuki kamezawa.hir...@jp.fujitsu.com
Acked-by: Michal Hocko mho...@suse.cz
---
mm
Only anon pages that are uncharged at the time of the last page table
mapping vanishing may be in swapcache.
When shmem pages, file pages, swap-freed anon pages, or just migrated
pages are uncharged, they are known for sure to be not in swapcache.
Signed-off-by: Johannes Weiner han
Charging cache pages may require swapin in the shmem case. Save the
forward declaration and just move the swapin functions above the cache
charging functions.
Signed-off-by: Johannes Weiner han...@cmpxchg.org
Acked-by: KAMEZAWA Hiroyuki kamezawa.hir...@jp.fujitsu.com
Acked-by: Michal Hocko mho
On Thu, Jul 12, 2012 at 04:54:07PM +0800, Wanpeng Li wrote:
On Wed, Jul 11, 2012 at 07:02:13PM +0200, Johannes Weiner wrote:
Compaction (and page migration in general) can currently be hindered
through pages being owned by memory cgroups that are at their limits
and unreclaimable
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