Hi,
On Sat, Mar 17, 2007 at 08:21:32AM +0200, Ahmed S. Darwish wrote:
Comment in release_task() claims that group leader's parent process
is signalled only if it desires so, which is not true.
AFAIS, `if it wants notification' means, it does not ignore its children
via SIG_IGN als handler for
Hi,
The kernel version mentioned in the subject won't boot because the ACPI
system does not get initialized; the system freezes on an outb() in
acpi_os_write_port() i.e. it does not do anything anymore and just hangs.
Here is the `stack trace' I managed to extract via debugging output:
[resend due to wrong mail headers last time]
Hi,
The kernel version mentioned in the subject won't boot because the ACPI
system does not get initialized; the system freezes on an outb() in
acpi_os_write_port() i.e. it does not do anything anymore and just hangs.
Here is the `stack trace' I
that memory is
allocated for chan-local in dma_async_device_register() but I couldn't
find where it is released again.
I am quite new to this all, please give me feedback!
Signed-off-by: Johannes Weiner [EMAIL PROTECTED]
diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
index
Hi,
I added the 'Q' to list. A short description in the `Ok, so what can I
use them for'-section, on when or why to use it would be nice!
Signed-off-by: Johannes Weiner [EMAIL PROTECTED]
diff --git a/Documentation/sysrq.txt b/Documentation/sysrq.txt
index 452c0f1..d43aa9d 100644
Hi,
On Tue, Mar 20, 2007 at 01:32:45PM +0100, Pavel Machek wrote:
Date: Tue, 20 Mar 2007 13:32:45 +0100
From: Pavel Machek [EMAIL PROTECTED]
To: Rafael J. Wysocki [EMAIL PROTECTED],
kernel list linux-kernel@vger.kernel.org
Cc: Andrew Morton [EMAIL PROTECTED]
Subject: reboot swsusp
Hi,
On Tue, Mar 20, 2007 at 07:01:21PM +0100, Pavel Machek wrote:
What does the reboot swsusp mean?
echo reboot ...disk.
Thank you.
I am having this (or a similar problem):
echo shutdown /sys/power/disk; echo disk /sys/power/state
Yep, that's duplicate. Try patch below.
I
Hi,
On Tue, Mar 20, 2007 at 11:47:35PM -0700, Wink Saville wrote:
--- /dev/null
+++ b/drivers/trec/trec.c
[...]
+struct trec_dev_struct
+{
+ struct cdevcdev; /* Character device
structure */
Your patch has broken lines where there shouldn't be any.
Hi,
On Wed, Mar 21, 2007 at 09:22:39AM +0100, Johannes Weiner wrote:
Your patch has broken lines where there shouldn't be any.
I mean, the attached patch. This is probably not an error in the patch
but in the way of posting it.
+static int snprint_address(char *b, int bsize, unsigned long
Hi,
On Wed, Mar 21, 2007 at 09:49:12AM -0700, Wink Saville wrote:
Please don't use camel-case - in general.
Would p_next, p_cur and p_end be OK?
I think it's generally disliked. Quoting Documentation/CodingStyle:
``Encoding the type of a function into the name (so-called Hungarian
RB_EMPTY_ROOT() as last call in this loop does not trigger?
Did I even get the right place on where the NULL pointer dereference
happens? :)
=Hannes
Signed-off-by: Johannes Weiner [EMAIL PROTECTED]
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index b6491c0..ca84f0b 100644
--- a/block/cfq
Hi,
On Thu, Mar 22, 2007 at 12:48:05AM +0100, roland wrote:
fs/block_dev.c: In function `bd_claim_by_kobject':
fs/block_dev.c:953: warning: `found' might be used uninitialized in this
function
found actually _is_ used uninitialized if the call to bd_claim() returns
anything but 0. Thank
Hi,
On Thu, Mar 22, 2007 at 12:45:40AM -0800, Andrew Morton wrote:
On Thu, Mar 22, 2007 at 12:48:05AM +0100, roland wrote:
fs/block_dev.c: In function `bd_claim_by_kobject':
fs/block_dev.c:953: warning: `found' might be used uninitialized in this
function
found actually _is_ used
Hi,
On Thu, Mar 22, 2007 at 05:26:04PM +0100, Johannes Weiner wrote:
The code in there is irksome - it'd be nice to find some way of
restructuring it to make it less obscure, and to kill that warning.
Functionscope or filescope? ;)
Oh well... I think the latter. I wil clean it up
Hi,
On Wed, Mar 21, 2007 at 08:04:00PM +0100, Johannes Weiner wrote:
Did I even get the right place on where the NULL pointer dereference
happens? :)
No, I did not. Sorry for the noise.
=Hannes
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Hi,
On Thu, Mar 22, 2007 at 07:42:35PM +0100, Jens Axboe wrote:
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index b6491c0..ca84f0b 100644
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -961,8 +961,8 @@ __cfq_dispatch_requests(struct cfq_data *cfqd, struct
cfq_queue
. Patch attached.
Signed-off-by: Johannes Weiner [EMAIL PROTECTED]
diff --git a/mm/slab.c b/mm/slab.c
index 57f7aa4..6d7e486 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -1512,6 +1512,7 @@ void __init kmem_cache_init(void)
struct array_cache *ptr;
ptr = kmalloc(sizeof
Hi,
This patch makes kmem_cache_init() trigger a BUG when the calls to
kmalloc() fail. Altough the kernel would not boot anyway on failure,
this adds some clarity to the code.
Signed-off-by: Johannes Weiner [EMAIL PROTECTED]
diff --git a/mm/slab.c b/mm/slab.c
index 57f7aa4..6d7e486 100644
Hi,
Mike Frysinger [EMAIL PROTECTED] writes:
wonder if we could design a printk designed for __init functions to
address this in a clean fashion.
#define init_printk(fmt, __VA_ARGS__) \
do { \
static const __init char __fmt[] = fmt; \
printk(__fmt , ## __VA_ARGS__); \
} while
Hi,
Mike Frysinger [EMAIL PROTECTED] writes:
How about:
#define init_printk(fmt, args...) ({\
static const __init char __fmt[] = fmt; \
printk(__fmt, args);\
})
Now it returns the printk result.
i wasnt really worried about that ... i was
Hi,
On Fri, Nov 09, 2007 at 10:35:14PM +0100, Tobias Brox wrote:
We're running 32 bits linux, maybe it would help to upgrade to 64 bits?
Although you can address up to 64GB of RAM with PAE, the address space
of directly accessible memory is still at 32bit (4GB) and access to
higher memory costs
Hi Steve,
Stephen Clark [EMAIL PROTECTED] writes:
But with 2.6.23.8-34.fc7
/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_cur_freq
is always the max cpu speed of 1826000.
While cpuinfo_cur_freq is the max 1826000 /proc/cpuinfo relflects the
correct speed when idle of
996000
Which governor
Hi,
Stephen Clark [EMAIL PROTECTED] writes:
Which governor are you using? ondemand?
Not sure - but the only thing that is changed is the kernel - if I go
back to 2.6.23.1 it works correctly.
Have a look at /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
Hannes
PS: Steve,
Hi Benjamin,
Benjamin Herrenschmidt [EMAIL PROTECTED] writes:
--- linux-work.orig/drivers/pci/pci.c 2007-12-18 09:37:56.0 +1100
+++ linux-work/drivers/pci/pci.c 2007-12-18 09:38:25.0 +1100
[...]
+int pci_enable_device_io(struct pci_dev *dev)
+{
+ int err;
+
Hi,
Stephen Clark [EMAIL PROTECTED] writes:
userspace
Please supply the full dmesg output on the non-working kernel the
corresponding .config (or /proc/config.gz).
Added Dave to CC.
Hannes
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Hi Al,
Al Viro [EMAIL PROTECTED] writes:
On Wed, Dec 19, 2007 at 02:43:26PM +0100, Bodo Eggert wrote:
Since nobody knows about this security boundary and everybody knows about
the annoying can't link across bind-mountpoints bug,
... how about teaching people to RTFM? Starting, perhaps,
seen a discussion about this particular
problem, so if I missed something, please tell me and consider this mail
obsolete.
Hannes
From: Johannes Weiner [EMAIL PROTECTED]
Date: Tue, 18 Dec 2007 13:03:49 +0100
Subject: [PATCH] cpufreq: Initialise default governor before use
When the cpufreq
Hi,
Michael Tokarev [EMAIL PROTECTED] writes:
By the way, is there any real need to specify default governor at
a compile time in the first place? Performance governor (which was
the only default so far) is a very simple one (not large to consider
its size effects for embedded systems for
btw, here is the oops as I pencil-copied it:
NULL pointer deref
EIP: wq_per_cpu
queue_delayed_work_on()
do_dbs_timer()
cpufreq_governor_dbs()
__cpufreq_governor()
__cpufreq_set_policy()
Hi Daniel,
On Tue, Nov 20, 2007 at 11:34:20AM +0100, Daniel Reichelt wrote:
# diff -Naur linux-2.6.23.8/fs/Kconfig linux-2.6.23.8-dhr/fs/Kconfig
--- linux-2.6.23.8/fs/Kconfig 2007-11-16 19:14:27.0 +0100
+++ linux-2.6.23.8-dhr/fs/Kconfig 2007-11-20 11:33:18.0 +0100
@@
Hi,
Oleksandr Natalenko [EMAIL PROTECTED] writes:
And... Linus, why do yo make mistakes in headers of announces :)? Not first
time.
This is the effect of a plugin for the Linus-bot written in Lisp. It's
an output-scrambler that makes him act more human.
Hannes
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. How about the following,
totally untested, solution?
This converts the function to use more common timeout-loop constructs,
gets rid of the shadowed variable and localises another variable even
more! Hooray!
Hannes
Signed-off-by: Johannes Weiner [EMAIL PROTECTED]
---
drivers/serial
Hi,
Eduard-Gabriel Munteanu [EMAIL PROTECTED] writes:
diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index 30d94d1..15556a0 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -583,6 +583,17 @@ static void __init amd_detect_cmp(struct
Hi,
Gautham R Shenoy [EMAIL PROTECTED] writes:
diff --git a/kernel/rcuclassic.c b/kernel/rcuclassic.c
new file mode 100644
index 000..11c16aa
--- /dev/null
+++ b/kernel/rcuclassic.c
+/**
+ * call_rcu - Queue an RCU callback for invocation after a grace period.
+ * @head: structure to
Hi,
Srinivasa Ds [EMAIL PROTECTED] writes:
Forgot to change non_init_core_kernel_text() to regular_core_kernel_text().
Resending the patch.
[...]
This patch creates non_init_kernel_text_address() to identify
non_init text area.
You still refer to the old name here :)
How about
Ensure that the selected default cpufreq governor is initialised before
used by the cpufreq driver on boot by using fs_initcall() instead of
module_init().
Signed-off-by: Johannes Weiner [EMAIL PROTECTED]
---
On boot, speedstep_init() calls into cpufreq_gov_dbs(). The driver has
not yet been
On Tue, Oct 30, 2012 at 02:29:25PM +0800, Zhouping Liu wrote:
On 10/29/2012 01:56 AM, Johannes Weiner wrote:
On Fri, Oct 26, 2012 at 11:08:00AM +0200, Peter Zijlstra wrote:
On Fri, 2012-10-26 at 17:07 +0800, Zhouping Liu wrote:
[ 180.918591] RIP: 0010:[8118c39a] [8118c39a
On Tue, Oct 30, 2012 at 02:42:04PM -0400, Rik van Riel wrote:
If we have more inactive file pages than active file pages, we
skip scanning the active file pages alltogether, with the idea
that we do not want to evict the working set when there is
plenty of streaming IO in the cache.
to their callers
to make to code easier.
This patch doesn't have any functional changes.
Signed-off-by: Michal Hocko mho...@suse.cz
Reviewed-by: Tejun Heo t...@kernel.org
Acked-by: Johannes Weiner han...@cmpxchg.org
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have to bother with the
root cgroup and it can assume it can always move charges upwards.
Signed-off-by: Michal Hocko mho...@suse.cz
Reviewed-by: Tejun Heo t...@kernel.org
Acked-by: Johannes Weiner han...@cmpxchg.org
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On Mon, Aug 13, 2012 at 03:55:41PM +0200, Michal Hocko wrote:
0c176d5 (mm: hugetlb: fix pgoff computation when unmapping page
from vma) fixed pgoff calculation but it has replaced it by
vma_hugecache_offset which is not approapriate for offsets used for
vma_prio_tree_foreach because that one
On Thu, Sep 27, 2012 at 12:02:14AM +0400, Glauber Costa wrote:
On 09/26/2012 11:56 PM, Tejun Heo wrote:
Hello,
On Wed, Sep 26, 2012 at 11:46:37PM +0400, Glauber Costa wrote:
Besides not being part of cgroup core, and respecting very much both
cgroups' and basic sanity properties, kmem
Hi Andrew,
an older version of mm: memcg: count pte references from every member
of the reclaimed hierarchy patch made it into the 3.5
(c3ac9a8ade65ccbfd145fbff895ae8d8d62d09b0) by accident and I didn't
notice until just now. #1 is a fixup on top, tagged for 3.5-stable.
#2 is a cleanup you
It really should return a boolean for match/no match. And since it
takes a memcg, not a cgroup, fix that parameter name as well.
Signed-off-by: Johannes Weiner han...@cmpxchg.org
Acked-by: Michal Hocko mho...@suse.cz
---
include/linux/memcontrol.h | 14 +++---
1 file changed, 7
page_referenced() counts only references of mm's that are associated
with the memcg hierarchy that is being reclaimed. However, if it
races with the owner of the mm exiting, mm-owner may be NULL. Don't
crash, just ignore the reference.
Signed-off-by: Johannes Weiner han...@cmpxchg.org
Cc: sta
On Thu, Oct 04, 2012 at 08:49:58PM +0200, Michal Hocko wrote:
On Thu 04-10-12 14:09:16, Johannes Weiner wrote:
page_referenced() counts only references of mm's that are associated
with the memcg hierarchy that is being reclaimed. However, if it
races with the owner of the mm exiting, mm
On Thu, Oct 04, 2012 at 02:53:13PM +0400, Glauber Costa wrote:
On 10/01/2012 05:27 PM, Michal Hocko wrote:
On Tue 18-09-12 18:04:09, Glauber Costa wrote:
A lot of the initialization we do in mem_cgroup_create() is done with
softirqs
enabled. This include grabbing a css id, which holds
On Thu, Oct 18, 2012 at 10:05:39AM -0700, tip-bot for Peter Zijlstra wrote:
Commit-ID: 713f937655c4b15131b5a0eae4610918a4febe17
Gitweb: http://git.kernel.org/tip/713f937655c4b15131b5a0eae4610918a4febe17
Author: Peter Zijlstra a.p.zijls...@chello.nl
AuthorDate: Fri, 12 Oct 2012
On Fri, Oct 19, 2012 at 04:25:47PM +0530, Srivatsa S. Bhat wrote:
Move the check for populated_zone() to the control statement of the
'for' loop and get rid of the odd looking if/else block.
Signed-off-by: Srivatsa S. Bhat srivatsa.b...@linux.vnet.ibm.com
---
include/linux/mmzone.h |
-by: David Rientjes rient...@google.com
Cc: stable [3.5+]
I also don't think it's hackish, the limit depends very much on
whether reclaim can swap, so it's natural that swappiness shows up
here.
Acked-by: Johannes Weiner han...@cmpxchg.org
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not result
in a CoW update the access flags for the faulting pmd.
Cc: Chris Metcalf cmetc...@tilera.com
Cc: Kirill A. Shutemov kir...@shutemov.name
Cc: Andrea Arcangeli aarca...@redhat.com
Signed-off-by: Will Deacon will.dea...@arm.com
Acked-by: Johannes Weiner han...@cmpxchg.org
Ok chaps
On Wed, Oct 24, 2012 at 09:36:27PM -0700, Hugh Dickins wrote:
On Wed, 24 Oct 2012, Dave Jones wrote:
Machine under significant load (4gb memory used, swap usage fluctuating)
triggered this...
WARNING: at mm/shmem.c:1151 shmem_getpage_gfp+0xa5c/0xa70()
Pid: 29795, comm: trinity-child4
to fold it into #31.
Signed-off-by: Johannes Weiner han...@cmpxchg.org
---
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 5c30a14..0d7ebd3 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -801,8 +801,6 @@ void do_huge_pmd_numa_page(struct mm_struct *mm, struct
vm_area_struct *vma
Subject: sched, numa, mm: Add memcg support to do_huge_pmd_numa_page()
From: Johannes Weiner han...@cmpxchg.org
Date: Thu Oct 25 12:49:51 CEST 2012
Add memory control group support to hugepage migration.
Signed-off-by: Johannes Weiner han...@cmpxchg.org
Tested-by: Zhouping Liu z
with v3.2-4896-gab8fabd (which
means that we should include Cc: sta...@kernel.org for 3.3+).
The diff itself looks good to me, thanks again:
Acked-by: Johannes Weiner han...@cmpxchg.org
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On Tue, Nov 13, 2012 at 01:31:52AM +0900, Joonsoo Kim wrote:
There is no implementation of bootmeme_arch_preferred_node() and
call for this function will makes compile-error.
So, remove it.
Signed-off-by: Joonsoo Kim js1...@gmail.com
Acked-by: Johannes Weiner han...@cmpxchg.org
On Tue, Nov 13, 2012 at 01:31:53AM +0900, Joonsoo Kim wrote:
Now, there is no code for CONFIG_HAVE_ARCH_BOOTMEM.
So remove it.
Cc: Haavard Skinnemoen hskinnem...@gmail.com
Cc: Hans-Christian Egtvedt egtv...@samfundet.no
Signed-off-by: Joonsoo Kim js1...@gmail.com
Acked-by: Johannes Weiner
directly return kmalloc*'s return value.
Signed-off-by: Joonsoo Kim js1...@gmail.com
Acked-by: Johannes Weiner han...@cmpxchg.org
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() with virtual address.
So fix them.
Cc: Andrew Morton a...@linux-foundation.org
Cc: Benjamin Herrenschmidt b...@kernel.crashing.org
Signed-off-by: Joonsoo Kim js1...@gmail.com
Acked-by: Johannes Weiner han...@cmpxchg.org
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it's applied to memory from kzalloc(). Ben?
Signed-off-by: Johannes Weiner han...@cmpxchg.org
---
diff --git a/drivers/macintosh/smu.c b/drivers/macintosh/smu.c
index 7d5a6b4..1963680 100644
--- a/drivers/macintosh/smu.c
+++ b/drivers/macintosh/smu.c
@@ -565,7 +565,7 @@ int __init smu_init (void
On Mon, Nov 12, 2012 at 08:10:27PM -0500, Johannes Weiner wrote:
On Tue, Nov 13, 2012 at 01:31:55AM +0900, Joonsoo Kim wrote:
It is somehow strange that alloc_bootmem return virtual address
and free_bootmem require physical address.
Anyway, free_bootmem()'s first parameter should
this look?
Much better. How about this in addition?
Signed-off-by: Johannes Weiner han...@cmpxchg.org
---
diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h
index 7b74452..b519cb2 100644
--- a/include/linux/bootmem.h
+++ b/include/linux/bootmem.h
@@ -49,7 +49,7 @@ extern unsigned long
...@chello.nl
Add THP migration for the NUMA working set scanning fault case.
It uses the page lock to serialize. No migration pte dance is
necessary because the pte is already unmapped when we decide
to migrate.
Signed-off-by: Peter Zijlstra a.p.zijls...@chello.nl
Cc: Johannes Weiner han
On Tue, Oct 30, 2012 at 11:35:59AM +0100, Michal Hocko wrote:
On Mon 29-10-12 15:00:22, Andrew Morton wrote:
On Mon, 29 Oct 2012 17:58:45 +0400
Glauber Costa glom...@parallels.com wrote:
+ * move charges to its parent or the root cgroup if the group has no
+ * parent (aka
in pre_destroy) so we have to
move it after the lock is released.
Changes since v1
- Li Zefan pointed out that mem_cgroup_pre_destroy cannot be called with
cgroup_lock held
Signed-off-by: Michal Hocko mho...@suse.cz
Acked-by: Johannes Weiner han...@cmpxchg.org
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On Thu, Oct 18, 2012 at 12:03:44PM -0700, Hugh Dickins wrote:
On Tue, 16 Oct 2012, Wen Congyang wrote:
At 09/14/2012 09:36 AM, Hugh Dickins Wrote:
Description to be filled in later: would it be needed for -stable,
or is onlining already broken in other ways that you're now fixing up?
Hi,
I found this in an `allyesconfig' build:
CC drivers/dma/ioatdma.o
drivers/dma/ioatdma.c: In function #ioat_dma_free_chan_resources#:
drivers/dma/ioatdma.c:247: warning: unused variable #chanctrl#
Hannes
Signed-off-by: Johannes Weiner [EMAIL PROTECTED]
diff --git
Hi,
The compiler warned me that dtc_setup() is unused in drivers/scsi/dtc.c:182.
I do not see a call to it anywhere and no __setup() near to it. Am I missing
something?
Hannes
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Hi,
This changes __do_softirq() to use a C looping construct instead of
simulating one by means of goto.
Signed-off-by: Johannes Weiner [EMAIL PROTECTED]
diff --git a/kernel/softirq.c b/kernel/softirq.c
index 0f546dd..bacee6b 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -212,38
386 memory init cleanup -- prerequisites
This patch fixes whitespace errors only.
Signed-off-by: Johannes Weiner [EMAIL PROTECTED]
---
arch/i386/mm/init.c | 28 ++--
1 files changed, 14 insertions(+), 14 deletions(-)
diff --git a/arch/i386/mm/init.c b/arch/i386/mm
i386 memory init cleanup
This patch improves code readability in the i386 memory initialization code
by refactoring, removal of needless casts, fixing of line width exceedings,
macro-inline function replacement, some comments and indentation correction.
Signed-off-by: Johannes Weiner [EMAIL
Hi,
On Thu, Oct 11, 2007 at 08:17:02AM +0200, Vegard Nossum wrote:
This makes sure printk format strings are string literals containing no
more than a single line.
Perhaps you should write _why_ one-line printk()s are even needed, with
profound reasons instead of constantly talking about
| | | alloc_pages_current
---
Signed-off-by: Tim Chen tim.c.c...@linux.intel.com
Good one.
Acked-by: Johannes Weiner han...@cmpxchg.org
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to memory corruption when the page is eventually swapped
back in.
This patch sets the page dirty when direct_IO() fails. It fixes a memory
corruption that happened while using swap-over-NFS.
Signed-off-by: Jerome Marchand jmarc...@redhat.com
Acked-by: Johannes Weiner han...@cmpxchg.org
-by: Johannes Weiner han...@cmpxchg.org
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Please read the FAQ at http://www.tux.org/lkml/
On Thu, Apr 18, 2013 at 05:36:12PM +0900, Yasuaki Ishimatsu wrote:
@@ -151,6 +162,39 @@ __initcall(ioresources_init);
#endif /* CONFIG_PROC_FS */
+static void free_resource(struct resource *res)
+{
+ if (!res)
+ return;
+
+ if (PageSlab(virt_to_head_page(res))) {
On Thu, Apr 11, 2013 at 08:57:50PM +0100, Mel Gorman wrote:
@@ -1841,17 +1848,58 @@ static void shrink_lruvec(struct lruvec *lruvec,
struct scan_control *sc)
lruvec, sc);
}
}
+
+ if
it is failing to reclaim any pages.
To avoid infinite looping for high-order allocation requests kswapd will
not reclaim for high-order allocations when it has reclaimed at least
twice the number of pages as the allocation request.
Signed-off-by: Mel Gorman mgor...@suse.de
Acked-by: Johannes
:
Acked-by: Johannes Weiner han...@cmpxchg.org
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.
Signed-off-by: Mel Gorman mgor...@suse.de
Acked-by: Rik van Riel r...@redhat.com
Reviewed-by: Michal Hocko mho...@suse.cz
Acked-by: Johannes Weiner han...@cmpxchg.org
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are being recycled before flusher threads can clean them and flags the
zone so that kswapd will start writing pages until the zone is balanced.
Signed-off-by: Mel Gorman mgor...@suse.de
Acked-by: Johannes Weiner han...@cmpxchg.org
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On Thu, Apr 11, 2013 at 08:57:56PM +0100, Mel Gorman wrote:
If kswaps fails to make progress but continues to shrink slab then it'll
either discard all of slab or consume CPU uselessly scanning shrinkers.
This patch causes kswapd to only call the shrinkers once per priority.
But the priority
per pgdat scan if kswapd should be writing pages.
Signed-off-by: Mel Gorman mgor...@suse.de
Reviewed-by: Michal Hocko mho...@suse.cz
Acked-by: Rik van Riel r...@redhat.com
Acked-by: Johannes Weiner han...@cmpxchg.org
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-by: Johannes Weiner han...@cmpxchg.org
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Please read the FAQ at http://www.tux.org/lkml/
oom killer exemption for TIF_MEMDIE tasks, now
immediately granted for processes with pending SIGKILLs and those in the
exit path, to be equivalent to what is done for the global oom killer.
Signed-off-by: David Rientjes rient...@google.com
Acked-by: Johannes Weiner han...@cmpxchg.org
.
Reported-and-tested-by: Bernhard Schmidt bernhard.schm...@lrz.de
Reference: http://bugs.debian.org/699913
Signed-off-by: Ben Hutchings b...@decadent.org.uk
Signed-off-by: Johannes Weiner han...@cmpxchg.org
---
mm/sparse-vmemmap.c | 8 +---
1 file changed, 5 insertions(+), 3 deletions
is too coarse.
Just translate the section range into bytes once in the generic sparse
code, then pass byte ranges down the stack.
Signed-off-by: Johannes Weiner han...@cmpxchg.org
---
arch/arm64/mm/mmu.c | 13 +
arch/ia64/mm/discontig.c | 7 +++
arch/powerpc/mm/init_64.c
Memory hotplug can happen on a machine under load, memory shortness
and fragmentation, so huge page allocations for the vmemmap are not
guaranteed to succeed.
Try to fall back to regular pages before failing the hotplug event
completely.
Signed-off-by: Johannes Weiner han...@cmpxchg.org
No need to maintain addr_end and p_end when they are never actually
read anywhere on !pse setups. Remove the dead code.
Signed-off-by: Johannes Weiner han...@cmpxchg.org
---
arch/x86/mm/init_64.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
We already have generic code to allocate vmemmap with regular pages,
use it.
Signed-off-by: Johannes Weiner han...@cmpxchg.org
---
arch/x86/mm/init_64.c | 81 ---
1 file changed, 38 insertions(+), 43 deletions(-)
diff --git a/arch/x86/mm/init_64.c
Hotplug can happen at times when the memory situation is less than
perfect to allocate huge pages for the vmemmap. This series makes the
allocation try harder in patch #1. The remaining patches allow x86-64
to fall back to regular pages as a last resort before the hotplug
event fails completely.
than my hack that just always went with SWAP_CLUSTER_MAX,
what with inter-zone LRU cycle time balancing and all.
Acked-by: Johannes Weiner han...@cmpxchg.org
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On Sun, Mar 17, 2013 at 01:04:08PM +, Mel Gorman wrote:
Simplistically, the anon and file LRU lists are scanned proportionally
depending on the value of vm.swappiness although there are other factors
taken into account by get_scan_count(). The patch mm: vmscan: Limit
the number of pages
On Thu, Mar 21, 2013 at 06:02:38PM +, Mel Gorman wrote:
On Thu, Mar 21, 2013 at 12:25:18PM -0400, Johannes Weiner wrote:
On Sun, Mar 17, 2013 at 01:04:08PM +, Mel Gorman wrote:
Simplistically, the anon and file LRU lists are scanned proportionally
depending on the value
On Fri, Mar 22, 2013 at 06:25:56PM +, Mel Gorman wrote:
On Fri, Mar 22, 2013 at 12:53:49PM -0400, Johannes Weiner wrote:
So would it make sense to determine the percentage scanned of the type
that we stop scanning, then scale the original goal of the remaining
LRUs to that percentage
On Wed, Mar 27, 2013 at 09:36:39AM +0100, Michal Hocko wrote:
As cgroup supports rename, it's unsafe to dereference dentry-d_name
without proper vfs locks. Fix this by using cgroup_name() rather than
dentry directly.
Also open code memcg_cache_name because it is called only from
, mem_cgroup_write and mem_cgroup_reset.
Signed-off-by: Michal Hocko mho...@suse.cz
Acked-by: Johannes Weiner han...@cmpxchg.org
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On Wed, Mar 27, 2013 at 04:11:04PM +0100, Michal Hocko wrote:
On Wed 27-03-13 10:58:25, Johannes Weiner wrote:
On Wed, Mar 27, 2013 at 09:36:39AM +0100, Michal Hocko wrote:
[...]
+ /*
+ * kmem_cache_create_memcg duplicates the given name and
+ * cgroup_name for this name requires
On Thu, Mar 07, 2013 at 04:43:12PM +0100, Jan Kara wrote:
Added mm list to CC.
On Tue 05-03-13 09:57:34, Howard Chu wrote:
I'm testing our memory-mapped database code on a small VM. The
machine has 32GB of RAM and the size of the DB on disk is ~44GB. The
database library mmaps the
On Fri, Mar 08, 2013 at 07:00:55AM -0800, Howard Chu wrote:
Chris Friesen wrote:
On 03/08/2013 03:40 AM, Howard Chu wrote:
There is no way that a process that is accessing only 30GB of a mmap
should be able to fill up 32GB of RAM. There's nothing else running on
the machine, I've killed or
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