On Sun, Jul 2, 2017 at 9:19 AM, Srividya Desireddy
wrote:
> From: Srividya Desireddy
> Date: Sun, 2 Jul 2017 19:15:37 +0530
> Subject: [PATCH v2] zswap: Zero-filled pages handling
>
> Zswap is a cache which compresses the pages that are being swapped out
> and stores them into a dynamically alloc
On Tue, Feb 14, 2017 at 9:40 AM, Mahipal Challa
wrote:
> This adds the support for kernel's crypto new acomp/scomp framework
> to zswap.
>
> Signed-off-by: Mahipal Challa
> Signed-off-by: Vishnu Nair
> ---
> mm/zswap.c | 129
> +++--
> 1
On Tue, Jan 24, 2017 at 3:22 PM, Dan Streetman wrote:
>
> Add myself as zswap maintainer.
>
> Cc: Seth Jennings
> Signed-off-by: Dan Streetman
Acked-by: Seth Jennings
Very yes to this. I've had almost no kernel time in my new position :(
Dan, if you wanted to add
On Mon, Apr 25, 2016 at 2:28 AM, Vlastimil Babka wrote:
> On 04/22/2016 01:22 AM, Andrew Morton wrote:
>>
>> On Tue, 19 Apr 2016 11:48:45 +0200 Vitaly Wool
>> wrote:
>>
>>> This patch introduces z3fold, a special purpose allocator for storing
>>> compressed pages. It is designed to store up to th
On Thu, Apr 14, 2016 at 12:45 PM, Vitaly Wool wrote:
> On Thu, Apr 14, 2016 at 5:53 PM, Seth Jennings wrote:
>> On Thu, Apr 14, 2016 at 4:06 AM, Vitaly Wool wrote:
>>>
>>>
>>> On Thu, Apr 14, 2016 at 10:48 AM, Vlastimil Babka wrote:
>>>>
On Thu, Apr 14, 2016 at 4:06 AM, Vitaly Wool wrote:
>
>
> On Thu, Apr 14, 2016 at 10:48 AM, Vlastimil Babka wrote:
>>
>> On 04/14/2016 10:05 AM, Vitaly Wool wrote:
>>>
>>> This patch introduces z3fold, a special purpose allocator for storing
>>> compressed pages. It is designed to store up to thr
NERS | 5 +++--
> 1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 860e306..e04e0a5 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -6583,9 +6583,10 @@ F: drivers/platform/x86/hp_accel.c
>
> LIVE PATCHING
>
Update/unify my contact info. The old email address
will no longer work soon.
Signed-off-by: Seth Jennings
---
MAINTAINERS | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/MAINTAINERS b/MAINTAINERS
index 30aca4a..9778aab 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
The function removes a section, not a block. Rename to reflect
actual functionality.
Signed-off-by: Seth Jennings
---
drivers/base/memory.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/base/memory.c b/drivers/base/memory.c
index ca2ce02..dd30744 100644
--- a
is messy.
This commit moves the increment out of the common init_memory_block()
(called by both add_memory_block() and register_new_memory()) and
adds it to register_new_memory().
Signed-off-by: Seth Jennings
---
drivers/base/memory.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --
Reported-by: Andrew Banman
Signed-off-by: Seth Jennings
---
drivers/base/memory.c | 4
1 file changed, 4 insertions(+)
diff --git a/drivers/base/memory.c b/drivers/base/memory.c
index dd30744..6d7b14c 100644
--- a/drivers/base/memory.c
+++ b/drivers/base/memory.c
@@ -303,6 +303,10 @@ static
to unexpected change
in behavior.
Signed-off-by: Seth Jennings
---
arch/x86/mm/init_64.c | 24 ++--
1 file changed, 6 insertions(+), 18 deletions(-)
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index ec081fe..31c41c5 100644
--- a/arch/x86/mm/init_64.c
+++ b/
On Fri, Nov 27, 2015 at 08:39:32AM +0100, Ingo Molnar wrote:
>
> * Seth Jennings wrote:
>
> > v2:
> > remove local bz variable (Ingo) and debug message since, if
> > the 2GB message doesn't print, there is only one possible
> > block size.
>
> I&#
On Thu, Nov 26, 2015 at 10:12:01AM +0100, Ingo Molnar wrote:
>
> * Seth Jennings wrote:
>
> > The cumulative effect of bdee237c and 982792c7 is some pretty convoluted
> > code. This commit has no (intended) functional change; just seeks to
> > simplify and make t
d might lead to unexpected change
in behavior.
Signed-off-by: Seth Jennings
---
arch/x86/mm/init_64.c | 24 +---
1 file changed, 5 insertions(+), 19 deletions(-)
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index ec081fe..b05df4f 100644
--- a/arch/x86/mm/i
;= 64GB and < 64GB case return, so it was removed.
This commit also adds code back for the UV case since it seemed to just
go away without reason in bdee237c and might lead to unexpected change
in behavior.
Signed-off-by: Seth Jennings
---
arch/x86/mm/init_64.c | 22 ++--
On Wed, Sep 23, 2015 at 10:59:00PM +0200, Vitaly Wool wrote:
> Okay, how about this? It's gotten smaller BTW :)
>
> zbud: allow up to PAGE_SIZE allocations
>
> Currently zbud is only capable of allocating not more than
> PAGE_SIZE - ZHDR_SIZE_ALIGNED - CHUNK_SIZE. This is okay as
> long as only z
On Wed, Sep 23, 2015 at 09:54:02AM +0200, Vitaly Wool wrote:
> On Wed, Sep 23, 2015 at 5:18 AM, Seth Jennings
> wrote:
> > On Tue, Sep 22, 2015 at 02:17:33PM +0200, Vitaly Wool wrote:
> >> Currently zbud is only capable of allocating not more than
> >> PAGE_SIZE -
On Tue, Sep 22, 2015 at 02:17:33PM +0200, Vitaly Wool wrote:
> Currently zbud is only capable of allocating not more than
> PAGE_SIZE - ZHDR_SIZE_ALIGNED - CHUNK_SIZE. This is okay as
> long as only zswap is using it, but other users of zbud may
> (and likely will) want to allocate up to PAGE_SIZE.
On Thu, Aug 06, 2015 at 04:50:23PM -0500, Seth Jennings wrote:
> On Wed, Aug 05, 2015 at 03:06:59PM -0700, Andrew Morton wrote:
> > On Wed, 5 Aug 2015 18:00:26 -0400 Dan Streetman wrote:
> >
> > > >
> > > > If there's some reason why this can't
On Wed, Aug 05, 2015 at 03:06:59PM -0700, Andrew Morton wrote:
> On Wed, 5 Aug 2015 18:00:26 -0400 Dan Streetman wrote:
>
> > >
> > > If there's some reason why this can't happen, can we please have a code
> > > comment which reveals that reason?
> >
> > zpool_create_pool() should work if this r
ket#1: DEV :7f:0e.0 (POLLED)
Signed-off-by: Seth Jennings
---
drivers/edac/sb_edac.c | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c
index ca78311..91cf710 100644
--- a/drivers/edac/sb_edac.c
+++ b/drivers/edac
On Thu, Jun 11, 2015 at 01:51:45PM -0500, Seth Jennings wrote:
> On Wed, Jun 10, 2015 at 04:54:24PM -0400, Dan Streetman wrote:
> > On Thu, Jun 4, 2015 at 8:13 AM, Dan Streetman wrote:
> > > On Thu, Jun 4, 2015 at 8:02 AM, Dan Streetman wrote:
> > >> Add dynami
On Wed, Jun 17, 2015 at 07:13:31PM -0400, Dan Streetman wrote:
> On Wed, Jun 10, 2015 at 4:54 PM, Dan Streetman wrote:
> > On Thu, Jun 4, 2015 at 8:13 AM, Dan Streetman wrote:
> >> On Thu, Jun 4, 2015 at 8:02 AM, Dan Streetman wrote:
> >>> Add dynamic creation of pools. Move the static crypto c
On Wed, Jun 10, 2015 at 04:54:24PM -0400, Dan Streetman wrote:
> On Thu, Jun 4, 2015 at 8:13 AM, Dan Streetman wrote:
> > On Thu, Jun 4, 2015 at 8:02 AM, Dan Streetman wrote:
> >> Add dynamic creation of pools. Move the static crypto compression
> >> per-cpu transforms into each pool. Add a poi
On Tue, Jun 02, 2015 at 11:11:52AM -0400, Dan Streetman wrote:
> This patch series allows setting all zswap params at runtime, instead
> of only being settable at boot-time.
>
> The changes to zswap are rather large, due to the creation of zswap pools,
> which contain both a compressor function as
On Tue, Jun 02, 2015 at 11:11:55AM -0400, Dan Streetman wrote:
> Change the "enabled" parameter to be configurable at runtime. Remove
> the enabled check from init(), and move it to the frontswap store()
> function; when enabled, pages will be stored, and when disabled, pages
> won't be stored.
I
On Mon, Feb 09, 2015 at 11:31:18AM -0600, Josh Poimboeuf wrote:
> Add a basic per-task consistency model. This is the foundation which
> will eventually enable us to patch those ~10% of security patches which
> change function prototypes and/or data semantics.
>
> When a patch is enabled, livepat
On Tue, Nov 04, 2014 at 10:33:43AM -0600, Seth Jennings wrote:
> On Tue, Oct 14, 2014 at 08:59:19PM +0900, Heesub Shin wrote:
> > zbud is a memory allocator for storing compressed data pages. It keeps
> > two data objects of arbitrary size on a single page. This simple design
&g
On Wed, Jan 21, 2015 at 03:06:38PM +0100, Jiri Kosina wrote:
> On Wed, 21 Jan 2015, Li Bin wrote:
>
> > This reverts commit 83a90bb1345767f0cb96d242fd8b9db44b2b0e17.
> >
> > The method that only allowing the topmost patch on the stack to be
> > enabled or disabled is unreasonable. Such as the fol
On Tue, Dec 23, 2014 at 11:40:45AM +0900, Minchan Kim wrote:
> Hi Ganesh,
>
> On Tue, Dec 23, 2014 at 10:26:12AM +0800, Ganesh Mahendran wrote:
> > Hello Minchan
> >
> > 2014-12-20 10:25 GMT+08:00 Minchan Kim :
> > > Hey Ganesh,
> > >
> > > On Sat, Dec 20, 2014 at 09:43:34AM +0800, Ganesh Mahendr
On Tue, Dec 02, 2014 at 11:49:41AM +0900, Minchan Kim wrote:
> Recently, there was issue about zsmalloc fragmentation and
> I got a report from Juno that new fork failed although there
> are plenty of free pages in the system.
> His investigation revealed zram is one of the culprit to make
> heavy
On Wed, Dec 17, 2014 at 12:16:18AM +0530, Balbir Singh wrote:
> On Tue, Dec 16, 2014 at 11:28 PM, Seth Jennings wrote:
> > This commit introduces code for the live patching core. It implements
> > an ftrace-based mechanism and kernel interface for doing live patching
> >
On Tue, Dec 16, 2014 at 11:45:12PM +0530, Balbir Singh wrote:
> On Tue, Dec 16, 2014 at 11:28 PM, Seth Jennings wrote:
> >
> > Changelog:
> >
> > Thanks for all the feedback!
> >
>
> Could you describe what this does to signing? I presume the patched
https://git.kernel.org/cgit/linux/kernel/git/jirislaby/kgraft.git/
[3] https://etherpad.fr/p/LPC2014_LivePatching
Seth Jennings (3):
kernel: add TAINT_LIVEPATCH
kernel: add support for live patching
samples: add sample live patching module
Documentation/ABI/testing/sysfs-kernel-livep
Add a sample live patching module.
Signed-off-by: Seth Jennings
---
MAINTAINERS | 1 +
samples/Kconfig | 7 +++
samples/Makefile | 2 +-
samples/livepatch/Makefile | 1 +
samples/livepatch/livepatch-sample.c | 87
function in the backtrace.
Signed-off-by: Seth Jennings
---
Documentation/oops-tracing.txt | 2 ++
Documentation/sysctl/kernel.txt | 1 +
include/linux/kernel.h | 1 +
kernel/panic.c | 2 ++
4 files changed, 6 insertions(+)
diff --git a/Documentation/oops-tracing.txt b
old version of the function can _not_ be safely applied in this
version.
Signed-off-by: Seth Jennings
Signed-off-by: Josh Poimboeuf
---
Documentation/ABI/testing/sysfs-kernel-livepatch | 44 ++
MAINTAINERS | 13 +
arch/x86/Kconfig
/dynup/kpatch
[2] https://git.kernel.org/cgit/linux/kernel/git/jirislaby/kgraft.git/
[3] https://etherpad.fr/p/LPC2014_LivePatching
Seth Jennings (3):
kernel: add TAINT_LIVEPATCH
kernel: add support for live patching
samples: add sample live patching module
Documentation/ABI/testing/
function in the backtrace.
Signed-off-by: Seth Jennings
---
Documentation/oops-tracing.txt | 2 ++
Documentation/sysctl/kernel.txt | 1 +
include/linux/kernel.h | 1 +
kernel/panic.c | 2 ++
4 files changed, 6 insertions(+)
diff --git a/Documentation/oops-tracing.txt b
old version of the function can _not_ be safely applied in this
version.
Signed-off-by: Seth Jennings
---
Documentation/ABI/testing/sysfs-kernel-livepatch | 44 ++
MAINTAINERS | 13 +
arch/x86/Kconfig | 3 +
arch/x86
Add a sample live patching module.
Signed-off-by: Seth Jennings
---
MAINTAINERS | 1 +
samples/Kconfig | 7 +++
samples/Makefile | 2 +-
samples/livepatch/Makefile | 1 +
samples/livepatch/livepatch-sample.c | 87
On Thu, Nov 27, 2014 at 06:05:13PM +0100, Petr Mladek wrote:
> On Tue 2014-11-25 11:15:09, Seth Jennings wrote:
> > Add a sample live patching module.
> >
> > Signed-off-by: Seth Jennings
> > ---
> > MAINTAINERS | 1 +
> > sa
On Sun, Nov 30, 2014 at 01:23:48PM +0100, Pavel Machek wrote:
> On Thu 2014-11-06 16:51:02, Jiri Slaby wrote:
> > On 11/06/2014, 03:39 PM, Seth Jennings wrote:
> > > This commit introduces code for the live patching core. It implements
> > > an ftrace-based mechani
On Tue, Nov 25, 2014 at 08:26:22PM +0100, Jiri Kosina wrote:
> On Tue, 25 Nov 2014, Seth Jennings wrote:
>
> > Masami's IPMODIFY patch is heading for -next via your tree. Once it
> > arrives,
> > I'll rebase and make the change to set IPMODIFY. Do not pull thi
function in the backtrace.
Signed-off-by: Seth Jennings
---
Documentation/oops-tracing.txt | 2 ++
Documentation/sysctl/kernel.txt | 1 +
include/linux/kernel.h | 1 +
kernel/panic.c | 2 ++
4 files changed, 6 insertions(+)
diff --git a/Documentation/oops-tracing.txt b
old version of the function can _not_ be safely applied in this
version.
Signed-off-by: Seth Jennings
---
Documentation/ABI/testing/sysfs-kernel-livepatch | 44 ++
MAINTAINERS | 13 +
arch/x86/Kconfig | 3 +
arch/x86
Add a sample live patching module.
Signed-off-by: Seth Jennings
---
MAINTAINERS | 1 +
samples/Kconfig | 7 +++
samples/livepatch/Makefile | 1 +
samples/livepatch/livepatch-sample.c | 87
4 files
ditional check. However, any function change that can not
execute safely with the old version of the function can _not_ be safely applied
for now.
[1] https://github.com/dynup/kpatch
[2] https://git.kernel.org/cgit/linux/kernel/git/jirislaby/kgraft.git/
[3] https://etherpad.fr/p/LPC2014_LivePatching
On Fri, Nov 21, 2014 at 06:35:47PM +0100, Jiri Slaby wrote:
> On 11/21/2014, 05:40 PM, Seth Jennings wrote:
> >>> --- /dev/null
> >>> +++ b/arch/x86/include/asm/livepatch.h
> >>> @@ -0,0 +1,37 @@
> ...
> >>> +#ifndef _ASM_X86_LIVEPATCH_H
>
On Fri, Nov 21, 2014 at 11:49:46AM +0900, Masami Hiramatsu wrote:
> (2014/11/21 7:29), Seth Jennings wrote:
> > Adds sysfs interface documentation to Documentation/ABI/testing/
> >
>
> Hmm, is there any reason to decouple this documentation from code patch?
> I think we&
On Fri, Nov 21, 2014 at 01:22:33AM +0100, Jiri Kosina wrote:
> On Thu, 20 Nov 2014, Seth Jennings wrote:
>
> > This commit introduces code for the live patching core. It implements
> > an ftrace-based mechanism and kernel interface for doing live patching
> > of
On Fri, Nov 21, 2014 at 04:46:32PM +0100, Miroslav Benes wrote:
> On Fri, 21 Nov 2014, Josh Poimboeuf wrote:
>
> > On Fri, Nov 21, 2014 at 03:44:35PM +0100, Miroslav Benes wrote:
> > > On Fri, 21 Nov 2014, Jiri Kosina wrote:
> > >
> > > [...]
> > >
> > > > [ ... snip ... ]
> > > > > +static int
ever, any function change that can not
execute safely with the old version of the function can _not_ be safely applied
for now.
[1] https://github.com/dynup/kpatch
[2] https://git.kernel.org/cgit/linux/kernel/git/jirislaby/kgraft.git/
[3] https://etherpad.fr/p/LPC2014_LivePatching
Seth Jennings (3):
function in the backtrace.
Signed-off-by: Seth Jennings
---
Documentation/oops-tracing.txt | 2 ++
Documentation/sysctl/kernel.txt | 1 +
include/linux/kernel.h | 1 +
kernel/panic.c | 2 ++
4 files changed, 6 insertions(+)
diff --git a/Documentation/oops-tracing.txt b
old version of the function can _not_ be safely applied in this
version.
Signed-off-by: Seth Jennings
---
MAINTAINERS | 12 +
arch/x86/Kconfig | 3 +
arch/x86/include/asm/livepatch.h | 37 ++
arch/x86/kernel/Makefile | 1 +
arch/x86/kernel
Adds sysfs interface documentation to Documentation/ABI/testing/
Signed-off-by: Seth Jennings
---
Documentation/ABI/testing/sysfs-kernel-livepatch | 44
MAINTAINERS | 1 +
2 files changed, 45 insertions(+)
create mode 100644
On Thu, Nov 20, 2014 at 11:35:52AM -0600, Josh Poimboeuf wrote:
> On Thu, Nov 20, 2014 at 02:10:33PM +0100, Miroslav Benes wrote:
> >
> > On Sun, 16 Nov 2014, Seth Jennings wrote:
> >
> > > This commit introduces code for the live patching core. It implements
>
On Thu, Nov 20, 2014 at 09:19:54AM -0600, Josh Poimboeuf wrote:
> On Sun, Nov 16, 2014 at 07:29:23PM -0600, Seth Jennings wrote:
> > +static int lpc_module_notify(struct notifier_block *nb, unsigned long
> > action,
> > + void *data)
> > +{
> &
One or more in the following commit set in the 3.18 merge window is causing
build failure on ppc64 with the default config:
7b345771ba921361b318e95bf21b257c65ac141c Documentation: update include path for
mpssd
8c2b0dc83d9840da4d993a5dbb15c5974ad5a188 Documentation: support glibc versions
without
On Tue, Nov 18, 2014 at 03:45:22PM +0100, Miroslav Benes wrote:
>
> On Sun, 16 Nov 2014, Seth Jennings wrote:
>
> [...]
>
> > diff --git a/include/linux/livepatch.h b/include/linux/livepatch.h
> > new file mode 100644
> > index 000..8b68fef
> >
On Wed, Nov 19, 2014 at 04:27:39PM +0100, Miroslav Benes wrote:
>
> Hi,
>
> during rewriting our code I came across few more things. See below.
>
> On Sun, 16 Nov 2014, Seth Jennings wrote:
>
> [...]
>
> > +/*
On Wed, Nov 19, 2014 at 09:06:41PM +0800, Weijie Yang wrote:
> On Wed, Nov 19, 2014 at 6:29 AM, Seth Jennings
> wrote:
> > On Tue, Nov 18, 2014 at 04:51:36PM +0800, Weijie Yang wrote:
> >> If a frontswap dup-store failed, it should invalidate the expired page
> >&g
On Tue, Nov 18, 2014 at 04:51:36PM +0800, Weijie Yang wrote:
> If a frontswap dup-store failed, it should invalidate the expired page
> in the backend, or it could trigger some data corruption issue.
> Such as:
> 1. use zswap as the frontswap backend with writeback feature
> 2. store a swap page(ve
> This issue was detected by using the Coccinelle software.
Thanks for the cleanup!
Acked-by: Seth Jennings
>
> Signed-off-by: Markus Elfring
> ---
> mm/zswap.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/mm/zswap.c b/mm/zswap.c
> ind
On Tue, Nov 18, 2014 at 03:23:49PM +0100, Jiri Slaby wrote:
> On 11/17/2014, 03:54 PM, Seth Jennings wrote:
> > On Mon, Nov 17, 2014 at 02:33:02PM +0900, Masami Hiramatsu wrote:
> >> Hmm, btw, "LP" and "LPC" remind me line-printer and LPC bus :(
> >&g
On Tue, Nov 18, 2014 at 03:11:43PM +0100, Miroslav Benes wrote:
>
> Hi,
>
> thank you for the revision. I'll rebase our patches on top of that. Anyway
> there is a small bug in a header file. See below.
>
> On Sun, 16 Nov 2014, Seth Jennings wrote:
>
> [.
On Mon, Nov 17, 2014 at 10:45:58AM -0800, Greg KH wrote:
> On Sun, Nov 16, 2014 at 07:29:23PM -0600, Seth Jennings wrote:
> > +#ifdef CONFIG_X86_32
> > +int lpc_write_module_reloc(struct module *mod, unsigned long type,
> > + unsigned long loc
On Mon, Nov 17, 2014 at 02:33:02PM +0900, Masami Hiramatsu wrote:
> Hi Seth,
>
> (2014/11/17 10:29), Seth Jennings wrote:
> > Changelog:
> >
> > Thanks for all the feedback!
> >
> > changes in v2:
> > - rebase to next-20141113
> > - add copy
function in the backtrace.
Signed-off-by: Seth Jennings
---
Documentation/oops-tracing.txt | 2 ++
Documentation/sysctl/kernel.txt | 1 +
include/linux/kernel.h | 1 +
kernel/panic.c | 2 ++
4 files changed, 6 insertions(+)
diff --git a/Documentation/oops-tracing.txt b
Adds sysfs interface documentation to Documentation/ABI/testing/
Signed-off-by: Seth Jennings
---
Documentation/ABI/testing/sysfs-kernel-livepatch | 44
MAINTAINERS | 1 +
2 files changed, 45 insertions(+)
create mode 100644
at can not
execute safely with the old version of the function can _not_ be safely applied
for now.
[1] https://github.com/dynup/kpatch
[2] https://git.kernel.org/cgit/linux/kernel/git/jirislaby/kgraft.git/
[3] https://etherpad.fr/p/LPC2014_LivePatching
Seth Jennings (3):
kernel: add TAINT_LI
old version of the function can _not_ be safely applied in this
version.
Signed-off-by: Seth Jennings
---
MAINTAINERS | 12 +
arch/x86/Kconfig | 2 +
arch/x86/include/asm/livepatch.h | 38 ++
arch/x86/kernel/Makefile | 1 +
arch/x86/kernel
r, but, at the same time, it isn't obvious that we are
passing the same value to kunmap_atomic() that we got from
kmap_atomic(). Just a thought.
Either way:
Reviewed-by: Seth Jennings
>
> Signed-off-by: Minchan Kim
> ---
> mm/zsmalloc.c | 21 -
> 1 file changed, 1
On Thu, Nov 13, 2014 at 11:16:00AM +0100, Miroslav Benes wrote:
>
> Hi,
>
> thank you for the first version of the united live patching core.
>
> The patch below implements some of our review objections. Changes are
> described in the commit log. It simplifies the hierarchy of data
> structure
Old email no longer viable.
Signed-off-by: Seth Jennings
---
mm/zbud.c | 2 +-
mm/zswap.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/mm/zbud.c b/mm/zbud.c
index db8de74..4e387be 100644
--- a/mm/zbud.c
+++ b/mm/zbud.c
@@ -619,5 +619,5 @@ module_init(init_zbud
On Sun, Nov 09, 2014 at 08:23:52PM +0800, Mahendran Ganesh wrote:
> zswap_cpu_init/zswap_comp_exit/zswap_entry_cache_create is only
> called by __init init_zswap()
Thanks for the cleanup!
Acked-by: Seth Jennings
>
> Signed-off-by: Mahendran Ganesh
> ---
> mm/zswap.c |
On Sun, Nov 09, 2014 at 07:22:23PM +0800, Mahendran Ganesh wrote:
> In zswap_cpu_init(), the code does not unregister *zswap_cpu_notifier_block*
> during the cleanup procedure.
This is not needed. If we are in the cleanup code, we never got to the
__register_cpu_notifier() call.
Thanks,
Seth
>
On Tue, Nov 11, 2014 at 11:17:39PM +0100, Jiri Kosina wrote:
> On Tue, 11 Nov 2014, Seth Jennings wrote:
>
> > It will be in v2 (hopefully out in the next couple of days).
>
> FWIW we are also working on a few patches on top of v1 to back some of the
> proposals we
On Fri, Nov 07, 2014 at 07:40:11PM +0100, Petr Mladek wrote:
> On Fri 2014-11-07 12:07:11, Seth Jennings wrote:
> > On Fri, Nov 07, 2014 at 06:13:07PM +0100, Petr Mladek wrote:
> > > On Thu 2014-11-06 08:39:08, Seth Jennings wrote:
[...]
> > > > + up(&lpc_mu
On Sun, Nov 09, 2014 at 12:19:22PM -0800, Greg KH wrote:
> On Thu, Nov 06, 2014 at 08:39:07AM -0600, Seth Jennings wrote:
> > This adds a new taint flag to indicate when the kernel or a kernel
> > module has been live patched. This will provide a clean indication in
> >
On Fri, Nov 07, 2014 at 11:40:38AM -0800, Andy Lutomirski wrote:
> On 11/06/2014 06:39 AM, Seth Jennings wrote:
> > This commit introduces code for the live patching core. It implements
> > an ftrace-based mechanism and kernel interface for doing live patching
> > of ker
On Fri, Nov 07, 2014 at 11:40:38AM -0800, Andy Lutomirski wrote:
> On 11/06/2014 06:39 AM, Seth Jennings wrote:
> > This commit introduces code for the live patching core. It implements
> > an ftrace-based mechanism and kernel interface for doing live patching
> > of ker
On Fri, Nov 07, 2014 at 07:40:11PM +0100, Petr Mladek wrote:
> On Fri 2014-11-07 12:07:11, Seth Jennings wrote:
> > On Fri, Nov 07, 2014 at 06:13:07PM +0100, Petr Mladek wrote:
> > > On Thu 2014-11-06 08:39:08, Seth Jennings wrote:
> > > > This commit introduces c
On Fri, Nov 07, 2014 at 06:13:07PM +0100, Petr Mladek wrote:
> On Thu 2014-11-06 08:39:08, Seth Jennings wrote:
> > This commit introduces code for the live patching core. It implements
> > an ftrace-based mechanism and kernel interface for doing live patching
> > of ker
On Fri, Nov 07, 2014 at 02:13:37PM +0100, Jiri Kosina wrote:
> On Fri, 7 Nov 2014, Josh Poimboeuf wrote:
>
> > > Also, lpc_create_object(), lpc_create_func(), lpc_create_patch(),
> > > lpc_create_objects(), lpc_create_funcs(), ... they all are pretty much
> > > alike, and are asking for some kin
On Thu, Nov 06, 2014 at 03:02:04PM -0500, Steven Rostedt wrote:
> On Thu, 6 Nov 2014 08:39:08 -0600
> Seth Jennings wrote:
>
> > --- /dev/null
> > +++ b/kernel/livepatch/Kconfig
> > @@ -0,0 +1,11 @@
> > +config LIVE_PATCHING
> > + tristate &q
On Thu, Nov 06, 2014 at 04:51:02PM +0100, Jiri Slaby wrote:
> On 11/06/2014, 03:39 PM, Seth Jennings wrote:
> > This commit introduces code for the live patching core. It implements
> > an ftrace-based mechanism and kernel interface for doing live patching
> > of ker
On Thu, Nov 06, 2014 at 04:11:37PM +0100, Jiri Kosina wrote:
> On Thu, 6 Nov 2014, Seth Jennings wrote:
>
> > This commit introduces code for the live patching core. It implements
> > an ftrace-based mechanism and kernel interface for doing live patching
> > of kernel and
old version of the function can _not_ be safely applied in this
version.
Signed-off-by: Seth Jennings
---
MAINTAINERS | 10 +
arch/x86/Kconfig |2 +
include/linux/livepatch.h | 45 ++
kernel/Makefile |1 +
kernel/livepatch/Kconfig | 11 +
kernel
_not_ be safely applied
for now.
[1] https://github.com/dynup/kpatch
[2] https://git.kernel.org/cgit/linux/kernel/git/jirislaby/kgraft.git/
[3] https://etherpad.fr/p/LPC2014_LivePatching
Seth Jennings (2):
kernel: add TAINT_LIVEPATCH
kernel: add support for live patching
Documentation/o
function in the backtrace.
Signed-off-by: Seth Jennings
---
Documentation/oops-tracing.txt | 2 ++
Documentation/sysctl/kernel.txt | 1 +
include/linux/kernel.h | 1 +
kernel/panic.c | 2 ++
4 files changed, 6 insertions(+)
diff --git a/Documentation/oops-tracing.txt b
On Tue, Oct 14, 2014 at 08:59:19PM +0900, Heesub Shin wrote:
> zbud is a memory allocator for storing compressed data pages. It keeps
> two data objects of arbitrary size on a single page. This simple design
> provides very deterministic behavior on reclamation, which is one of
> reasons why zswap
On Thu, Oct 23, 2014 at 07:14:15PM -0400, Dan Streetman wrote:
> On Tue, Oct 14, 2014 at 7:59 AM, Heesub Shin wrote:
> > zbud is a memory allocator for storing compressed data pages. It keeps
> > two data objects of arbitrary size on a single page. This simple design
> > provides very deterministi
On Tue, Oct 21, 2014 at 09:40:32PM -0500, Josh Poimboeuf wrote:
> On Tue, Oct 21, 2014 at 11:25:56PM +0200, Jiri Kosina wrote:
> > On Tue, 21 Oct 2014, Josh Poimboeuf wrote:
> > >
> > > I'm guessing kGraft doesn't have the address + length? I think you
> > > could call kallsyms_lookup() to get bo
On Tue, Oct 07, 2014 at 04:42:33PM +0900, Joonsoo Kim wrote:
> Hello, Seth.
> Sorry for late response. :)
>
> 2014-09-30 4:53 GMT+09:00 Seth Jennings :
> > On Fri, Sep 26, 2014 at 03:53:14PM +0900, Joonsoo Kim wrote:
> >> WARNING: This is just RFC patchset. patch 2/2 i
On Fri, Sep 26, 2014 at 03:53:14PM +0900, Joonsoo Kim wrote:
> WARNING: This is just RFC patchset. patch 2/2 is only for testing.
> If you know useful place to use this allocator, please let me know.
>
> This is brand-new allocator, called anti-fragmentation memory allocator
> (aka afmalloc), in o
On Mon, Sep 08, 2014 at 10:18:51AM -0400, Aristeu Rozanski wrote:
> On Fri, Sep 05, 2014 at 02:28:47PM -0500, Seth Jennings wrote:
> > Intel IA32 SDM Table 15-14 defines channel 0xf as 'not specified', but
> > EDAC doesn't know about this and returns and INTERNAL
On Thu, Sep 11, 2014 at 04:53:54PM -0400, Dan Streetman wrote:
> Update ordering of a changed zspage in its fullness group LRU list,
> even if it has not moved to a different fullness group.
>
> This is needed by zsmalloc shrinking, which partially relies on each
> class fullness group list to be
ng it into the zspage.
>
> Signed-off-by: Dan Streetman
> Cc: Minchan Kim
This one stands on its own as a bugfix.
Reviewed-by: Seth Jennings
> ---
> mm/zsmalloc.c | 14 +-
> 1 file changed, 5 insertions(+), 9 deletions(-)
>
> diff --git a/mm/zsmalloc.c b/mm
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