On 09.09.2015 6:10, Nicolas Pitre wrote:
On Tue, 8 Sep 2015, Sergey Dyasly wrote:
On 08.09.2015 5:45, Zhang Zhen wrote:
The arch-specific IOREMAP_MAX_ORDER is introduced in
commit: ff0daca([ARM] Add section support to ioremap) and
commit: a069c89 ([ARM] 3705/1: add supersection support
On 09.09.2015 6:10, Nicolas Pitre wrote:
On Tue, 8 Sep 2015, Sergey Dyasly wrote:
On 08.09.2015 5:45, Zhang Zhen wrote:
The arch-specific IOREMAP_MAX_ORDER is introduced in
commit: ff0daca([ARM] Add section support to ioremap) and
commit: a069c89 ([ARM] 3705/1: add supersection support
On 08.09.2015 5:45, Zhang Zhen wrote:
The arch-specific IOREMAP_MAX_ORDER is introduced in
commit: ff0daca([ARM] Add section support to ioremap) and
commit: a069c89 ([ARM] 3705/1: add supersection support to ioremap()).
But supersections and sections mappings are only used in !SMP && !LPAE case.
On 08.09.2015 5:45, Zhang Zhen wrote:
The arch-specific IOREMAP_MAX_ORDER is introduced in
commit: ff0daca([ARM] Add section support to ioremap) and
commit: a069c89 ([ARM] 3705/1: add supersection support to ioremap()).
But supersections and sections mappings are only used in !SMP && !LPAE case.
itry Safonov
Link:
https://lkml.kernel.org/g/1419328813-2211-1-git-send-email-d.safo...@partner.samsung.com
Signed-off-by: Sergey Dyasly
---
arch/arm/include/asm/memory.h |2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h
index 184de
Now it's preferable to use for_each_thread() instead of while_each_thread().
Add a check to checkpatch.pl in order to prevent any new usages of the buggy
while_each_thread() when possible.
Cc: Oleg Nesterov
Cc: Andy Whitcroft
Cc: Joe Perches
Signed-off-by: Sergey Dyasly
---
Changes since v1
On Sun, 18 Jan 2015 17:27:33 -0800
Joe Perches wrote:
> On Sun, 2015-01-18 at 17:24 +0300, Sergey Dyasly wrote:
> > Now it's preferable to use for_each_thread() instead of while_each_thread().
> > Add a check to checkpatch.pl in order to prevent any new usages of the buggy
> &
Signed-off-by: Sergey Dyasly dse...@gmail.com
---
Changes since v1:
- Added \s* to the regular expression
- Limited commit id to 12 digits
- Prefer to use -- Consider using
- Moved check to the end of the file
scripts/checkpatch.pl | 6 ++
1 file changed, 6 insertions(+)
diff --git a/scripts
On Sun, 18 Jan 2015 17:27:33 -0800
Joe Perches j...@perches.com wrote:
On Sun, 2015-01-18 at 17:24 +0300, Sergey Dyasly wrote:
Now it's preferable to use for_each_thread() instead of while_each_thread().
Add a check to checkpatch.pl in order to prevent any new usages of the buggy
-off-by: Sergey Dyasly s.dya...@samsung.com
---
arch/arm/include/asm/memory.h |2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h
index 184def0..c3ef139 100644
--- a/arch/arm/include/asm/memory.h
+++ b/arch/arm/include/asm/memory.h
On Sun, 04 Jan 2015 17:38:06 +0100
Arnd Bergmann wrote:
> On Saturday 03 January 2015 18:59:46 Sergey Dyasly wrote:
> > Hi Arnd,
> >
> > First, some background information. We originally encountered high
> > fragmentation
> > issue in vmalloc area:
> >
On Sun, 04 Jan 2015 17:38:06 +0100
Arnd Bergmann a...@arndb.de wrote:
On Saturday 03 January 2015 18:59:46 Sergey Dyasly wrote:
Hi Arnd,
First, some background information. We originally encountered high
fragmentation
issue in vmalloc area:
1. Total size of vmalloc area
Now it's preferable to use for_each_thread() instead of while_each_thread().
Add a check to checkpatch.pl in order to prevent any new usages of the buggy
while_each_thread() when possible.
Cc: Oleg Nesterov
Cc: Andy Whitcroft
Cc: Joe Perches
Signed-off-by: Sergey Dyasly
---
scripts
Signed-off-by: Sergey Dyasly dse...@gmail.com
---
scripts/checkpatch.pl | 6 ++
1 file changed, 6 insertions(+)
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index f0bb6d6..0c5cc0b 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -3255,6 +3255,12 @@ sub process
> Signed-off-by: Russell King
>
> and then later extended to 16MB supersection mappings, which indeed
> is used to reduce TLB pressure.
>
> I don't see any downsides to it, why change it?
>
> Arnd
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mappings, which indeed
is used to reduce TLB pressure.
I don't see any downsides to it, why change it?
Arnd
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> can go away before we change all users of while_each_thread().
>
> David, et al, I din't actually test 2/2, I do not know how. Please
> review, although it looks simple.
The patches look correct and my test case no longer hangs, so
Reviewed-and-Tested-by: Sergey Dyasly
>
, et al, I din't actually test 2/2, I do not know how. Please
review, although it looks simple.
The patches look correct and my test case no longer hangs, so
Reviewed-and-Tested-by: Sergey Dyasly dse...@gmail.com
Oleg.
include/linux/init_task.h |2 ++
include/linux/sched.h | 12
It seems to me that we are going nowhere with this discussion...
If you are ok with the first change in my patch regarding fatal_signal_pending,
I can send new patch with just that change.
On Mon, 30 Sep 2013 15:08:25 -0700 (PDT)
David Rientjes wrote:
> On Fri, 27 Sep 2013, Sergey Dya
, Sergey Dyasly wrote:
What you are saying contradicts current OOMk code the way I read it.
Comment in
oom_kill_process() says:
If the task is already exiting ... set TIF_MEMDIE so it can die quickly
I just want to know the right solution.
That's a comment, not code
On Wed, 25 Sep 2013 13:31:32 -0700 (PDT)
David Rientjes wrote:
> On Wed, 11 Sep 2013, Sergey Dyasly wrote:
>
> > > > /*
> > > > * If this task is not being ptraced on exit, then wait
> > > > for it
> > > >
On Wed, 25 Sep 2013 13:31:32 -0700 (PDT)
David Rientjes rient...@google.com wrote:
On Wed, 11 Sep 2013, Sergey Dyasly wrote:
/*
* If this task is not being ptraced on exit, then wait
for it
* to finish before killing some other
Ping :)
On Wed, 11 Sep 2013 19:06:05 +0400
Sergey Dyasly wrote:
> On Mon, 9 Sep 2013 13:07:08 -0700 (PDT)
> David Rientjes wrote:
>
> > > /*
> > >* If this task is not being ptraced on exit, then wait for it
> > >* to f
Ping :)
On Wed, 11 Sep 2013 19:06:05 +0400
Sergey Dyasly dse...@gmail.com wrote:
On Mon, 9 Sep 2013 13:07:08 -0700 (PDT)
David Rientjes rient...@google.com wrote:
/*
* If this task is not being ptraced on exit, then wait for it
* to finish before
nce that victim will become PF_EXITING between
scan and kill.
The only difference is in force_kill flag, and the only case where it's set
is SysRq. And I think in this case OOM killer messages are a good thing to have
even when victim is already exiting, instead of just silence.
--
Sergey Dyasly
to have
even when victim is already exiting, instead of just silence.
--
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Please
after victim has been selected.
Signed-off-by: Sergey Dyasly
---
mm/oom_kill.c | 17 +
1 file changed, 5 insertions(+), 12 deletions(-)
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 98e75f2..ef83b81 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -275,13 +275,16 @@ enum
after victim has been selected.
Signed-off-by: Sergey Dyasly dse...@gmail.com
---
mm/oom_kill.c | 17 +
1 file changed, 5 insertions(+), 12 deletions(-)
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 98e75f2..ef83b81 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -275,13
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