On 25 February 2017 at 20:12, Srividya Desireddy
wrote:
> From: Srividya Desireddy
> Date: Thu, 23 Feb 2017 15:04:06 +0530
> Subject: [PATCH] zswap: Zero-filled pages handling
>
> Zswap is a cache which compresses the pages that are being swapped out
> and stores them into a dynamically allocated
ild breaks.
Signed-off-by: Sarbojit Ganguly
---
arch/arm/include/asm/cmpxchg.h | 12
1 file changed, 12 insertions(+)
diff --git a/arch/arm/include/asm/cmpxchg.h b/arch/arm/include/asm/cmpxchg.h
index 916a274..97882f9 100644
--- a/arch/arm/include/asm/cmpxchg.h
+++ b/arch/arm/i
(GMT+05:30)
Title : Re: Re: Re: Re: Re: [PATCH v3] arm: Adding support for atomic half word
exchange
On Wed, Oct 07, 2015 at 02:36:41PM +, Sarbojit Ganguly wrote:
> Please have a look at this patch, please let me know if any modification
> is required.
> I have also submitted the
added a guard code to prevent build breaks.
Signed-off-by: Sarbojit Ganguly
---
arch/arm/include/asm/cmpxchg.h | 12
1 file changed, 12 insertions(+)
diff --git a/arch/arm/include/asm/cmpxchg.h b/arch/arm/include/asm/cmpxchg.h
index 916a274..97882f9 100644
--- a/arch/arm/inclu
un and issues were taken care of.
Since support for half-word atomic exchange was not there and Qspinlock
on ARM requires it, modified __xchg() to add support for that as well.
ARMv6 and lower does not support ldrex{b,h} so, added a guard code
to prevent build breaks.
Signed-off-by: Sarbojit G
:30)
Title : Re: Re: [PATCH v2] arm: Adding support for atomic half word exchange
On Mon, Oct 05, 2015 at 01:10:53PM +, Sarbojit Ganguly wrote:
> My sincere apologies for the format issue. This was due to the e-mail editor
> which reformats the text.
> I am reposting the patch, plea
off-by: Sarbojit Ganguly
---
arch/arm/include/asm/cmpxchg.h | 17 +
1 file changed, 17 insertions(+)
diff --git a/arch/arm/include/asm/cmpxchg.h b/arch/arm/include/asm/cmpxchg.h
index 916a274..a53cbeb 100644
--- a/arch/arm/include/asm/cmpxchg.h
+++ b/arch/arm/include/asm/cmpxch
ues were taken care of.
Since support for half-word atomic exchange was not there and Qspinlock
on ARM requires it, modified __xchg() to add support for that as well.
ARMv6 and lower does not support ldrex{b,h} so, added a guard code
to prevent build breaks.
Signed-off-by: Sarbojit Ganguly
---
arch/
Hello,
This is the second version of the patch previously posted.
v1-->v2 : Extended the guard code to cover the byte exchange case as well
following opinion of Will Deacon. Checkpatch has been run and issues
were taken care of.
From: Sarbojit Ganguly
Date: Thu, 3 Sep 2015 13:00:27 +0
l() requires an atomic exchange on a half word,
>> here is a small modification to __xchg() code to support the exchange.
>> ARMv6 and lower does not have support for LDREXH, so we need to make
>> sure things do not break when we're compiling on ARMv6.
>>
>>
tomic exchange on a half word,
here is a small modification to __xchg() code to support the exchange.
ARMv6 and lower does not have support for LDREXH, so we need to make sure things
do not break when we're compiling on ARMv6.
Signed-off-by: Sarbojit Ganguly
---
arch/arm/include/asm/cmpx
is a small modification to __xchg() code to support the exchange.
ARMv6 and lower does not have support for LDREXH, so we need to make sure things
do not break when we're compiling on ARMv6.
Signed-off-by: Sarbojit Ganguly
---
arch/arm/include/asm/cmpxchg.h | 18 ++
1 f
gs do not break when we're compiling on ARMv6.
Signed-off-by: Sarbojit Ganguly
---
arch/arm/include/asm/cmpxchg.h | 18 ++
1 file changed, 18 insertions(+)
diff --git a/arch/arm/include/asm/cmpxchg.h b/arch/arm/include/asm/cmpxchg.h
index 1692a05..547101d 100644
---
gs do not break when we're compiling on ARMv6.
Signed-off-by: Sarbojit Ganguly
---
arch/arm/include/asm/cmpxchg.h | 18 ++
1 file changed, 18 insertions(+)
diff --git a/arch/arm/include/asm/cmpxchg.h b/arch/arm/include/asm/cmpxchg.h
index 1692a05..547101d 100644
--- a/arch/a
ove.
I will post the v2 soon.
--- Original Message ---
Sender : Arnd Bergmann
Date : Jun 05, 2015 18:03 (GMT+05:30)
Title : Re: [RFC] arm: Add for atomic half word exchange
On Friday 05 June 2015 01:17:13 Sarbojit Ganguly wrote:
> Since the compilation is also a success for CONFIG_CPU_V
Since the compilation is also a success for CONFIG_CPU_V6 with the patch, I
think we're good to go.
--- Original Message ---
Sender : Sarbojit Ganguly Technical
Lead/SRI-Bangalore-AP Systems 1/Samsung Electronics
Date : Jun 02, 2015 20:11 (GMT+09:00)
Title : Re: Re: [RFC] arm: Ad
: Arnd Bergmann
Date : Jun 02, 2015 19:49 (GMT+09:00)
Title : Re: [RFC] arm: Add for atomic half word exchange
On Tuesday 02 June 2015 06:21:43 Sarbojit Ganguly wrote:
> Hello Raghavendra,
>
> That is exactly I had done albeit from menuconfig. Basically the whole point
> was to make s
: Raghavendra K T
Date : Jun 02, 2015 15:11 (GMT+09:00)
Title : Re: [RFC] arm: Add for atomic half word exchange
On 06/02/2015 11:19 AM, Sarbojit Ganguly wrote:
> I made the CONFIG_ARCH_MULTI_V6=y and
> CONFIG_CPU_V6K=y
> CONFIG_CPU_32v6=y
> CONFIG_CPU_32v6K=y
>
> and compiled 4.
: Add for atomic half word exchange
On Tuesday 19 May 2015 09:39:33 Sarbojit Ganguly wrote:
> Since 16 bit half word exchange was not there and MCS based qspinlock by
> Waiman's xchg_tail() requires an atomic exchange on a half word,
> here is a small modification to __xchg()
Tue, May 19, 2015 at 11:20:13AM +, Sarbojit Ganguly wrote:
> On Tuesday 19 May 2015 09:39:33 Sarbojit Ganguly wrote:
> > Since 16 bit half word exchange was not there and MCS based
> > qspinlock by Waiman's xchg_tail() requires an atomic exchange on a
> > half word, he
: Re: [RFC] arm: Add for atomic half word exchange
On Tuesday 19 May 2015 09:39:33 Sarbojit Ganguly wrote:
> Since 16 bit half word exchange was not there and MCS based qspinlock by
> Waiman's xchg_tail() requires an atomic exchange on a half word,
> here is a small modification to
Since 16 bit half word exchange was not there and MCS based qspinlock by
Waiman's xchg_tail() requires an atomic exchange on a half word,
here is a small modification to __xchg() code.
--- /linux.trees.git/tip/arch/arm/include/asm/cmpxchg.h 2015-05-11
23:36:06.942583615 +0530
+++ arch/a
Sorry guys I was away due to personal emergency, however now I am back
and will check the reply ASAP.
On 28 July 2012 21:49, Alan Stern wrote:
> On Sat, 28 Jul 2012, Daniel Mack wrote:
>
>> Hmm, interesting. Thanks for sharing this. I personally never saw this
>> bug kicking in, but if I understa
On 23 July 2012 20:24, Daniel Mack wrote:
> On 23.07.2012 16:47, Alan Stern wrote:
>> On Mon, 23 Jul 2012, Sarbojit Ganguly wrote:
>>> That is why I provided two stacks,
>>>
>>> 1st one is when I tried to remove the USB hub (which connects a webcam
>>>
On 23 July 2012 20:17, Alan Stern wrote:
> On Mon, 23 Jul 2012, Sarbojit Ganguly wrote:
>
>> Hello Daniel,
>>
>> That is why I provided two stacks,
>>
>> 1st one is when I tried to remove the USB hub (which connects a webcam
>> + microphone)
>>
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