Re: linux-next: manual merge of the pwm tree with the driver-core tree

2012-11-28 Thread Thierry Reding
On Thu, Nov 29, 2012 at 04:29:45PM +1100, Stephen Rothwell wrote: > Hi Thierry, > > Today's linux-next merge of the pwm tree got a conflict in > drivers/pwm/pwm-twl6030.c between commit fd1091125a1d ("pwm: remove use > of __devexit_p") from the driver-core tree and commit 6179a58ec7e2 ("pwm: > Rem

Re: [PATCH] tmpfs: support SEEK_DATA and SEEK_HOLE (reprise)

2012-11-28 Thread Jim Meyering
Jeff Liu wrote: > On 11/29/2012 12:15 PM, Jim Meyering wrote: >> Hugh Dickins wrote: >>> On Thu, 29 Nov 2012, Jaegeuk Hanse wrote: >> ... But this time in which scenario will use it? >>> >>> I was not very convinced by the grep argument from Jim and Paul: >>> that seemed to be grep holding on

[BUG REPORT] [mm-hotplug, aio] aio ring_pages can't be offlined

2012-11-28 Thread Lin Feng
Hi all, We encounter a "Resource temporarily unavailable" fail while trying to offline a memory section in a movable zone. We found that there are some pages can't be migrated. The offline operation fails in function migrate_page_move_mapping() returning -EAGAIN till timeout because the if asse

Re: linux-next: build warnings after merge of the akpm tree

2012-11-28 Thread Lars Ellenberg
On Thu, Nov 29, 2012 at 05:19:39PM +1100, Stephen Rothwell wrote: > Hi Andrew, > > After merging the akpm tree, today's linux-next build (x86_64 > allmodconfig) produced these warnings: > In file included from drivers/block/drbd/drbd_bitmap.c:32:0: > drivers/block/drbd/drbd_int.h:2339:0: warning

Re: [PATCH] tmpfs: support SEEK_DATA and SEEK_HOLE (reprise)

2012-11-28 Thread Jeff Liu
On 11/29/2012 02:53 PM, Jim Meyering wrote: > Jeff Liu wrote: > >> On 11/29/2012 12:15 PM, Jim Meyering wrote: >>> Hugh Dickins wrote: On Thu, 29 Nov 2012, Jaegeuk Hanse wrote: >>> ... > But this time in which scenario will use it? I was not very convinced by the grep argument f

Re: [RFC,v2,8/8] drm: tegra: Add gr2d device

2012-11-28 Thread Mark Zhang
On 11/26/2012 09:19 PM, Terje Bergström wrote: > Add client driver for 2D device. > > Signed-off-by: Arto Merilainen > Signed-off-by: Terje Bergstrom > > --- > [...] > + > +static int > +tegra_drm_ioctl_open_channel(struct drm_device *drm, void *data, > + struct drm_file

Re: kernel BUG at mm/huge_memory.c:212!

2012-11-28 Thread Bob Liu
Hi Jiri, On Wed, Nov 28, 2012 at 5:18 AM, Jiri Slaby wrote: > Hi, > > I've hit BUG_ON(atomic_dec_and_test(&huge_zero_refcount)) in > put_huge_zero_page right now. There are some "Bad rss-counter state" > before that, but those are perhaps unrelated as I saw many of them in > the previous -next. B

Re: [PATCH v3 0/9] Media Controller capture driver for DM365

2012-11-28 Thread Hans Verkuil
On Thu November 29 2012 00:47:41 Sylwester Nawrocki wrote: > On 11/28/2012 10:29 PM, Dan Carpenter wrote: > > On Wed, Nov 28, 2012 at 08:30:04PM +0100, Sylwester Nawrocki wrote: > >> On 11/28/2012 01:22 PM, Dan Carpenter wrote: > >>> In the end this is just a driver, and I don't especially care. B

Re: [PATCH 01/14] perf tool: Introduce perf_hpp__list for period related columns

2012-11-28 Thread Namhyung Kim
Hi Jiri, On Wed, 28 Nov 2012 14:52:36 +0100, Jiri Olsa wrote: > Adding perf_hpp__list list to register and contain all period > related columns the command is interested in. > > This way we get rid of static array holding all possible > columns and enable commands to register their own columns. B

[PATCH v2] zram: Fix use-after-free bug in disk write case

2012-11-28 Thread Nitin Gupta
Changelog v2 vs v1: - Changelog message now correctly explains the problem Fixes a bug introduced by commit c8f2f0db1 ("zram: Fix handling of incompressible pages") which caused a freed buffer to be used in case a partial write (non PAGE_SIZED) request is received and the data is found to be inco

Re: [PATCH 1/2] zsmalloc: add function to query object size

2012-11-28 Thread Minchan Kim
On Mon, Nov 26, 2012 at 11:26:40PM -0800, Nitin Gupta wrote: > Adds zs_get_object_size(handle) which provides the size of > the given object. This is useful since the user (zram etc.) > now do not have to maintain object sizes separately, saving > on some metadata size (4b per page). > > The objec

Re: [PATCH v3 0/9] Media Controller capture driver for DM365

2012-11-28 Thread Hans Verkuil
On Wed November 28 2012 20:30:21 Greg Kroah-Hartman wrote: > On Wed, Nov 28, 2012 at 08:18:20PM +0100, Hans Verkuil wrote: > > On Wed November 28 2012 18:22:48 Greg Kroah-Hartman wrote: > > > On Wed, Nov 28, 2012 at 10:18:02AM -0200, Mauro Carvalho Chehab wrote: > > > > Em Wed, 28 Nov 2012 12:56:10

RE: [PATCH v2 1/2] mmc: dw_mmc: exynos: Stop claiming wp-gpio

2012-11-28 Thread Seungwon Jeon
Hi Doug, On Thursday, November 29, 2012, Doug Anderson wrote: > Seungwon, > > Thanks for the review. See below for comments. If you'd like me to > respin then please let me know. Otherwise I look forward to your ack. > > On Wed, Nov 28, 2012 at 1:29 AM, Seungwon Jeon wrote: > > Yes. pin of w

Re: [RFC][PATCH 2/2] fix kvm's use of __pa() on percpu areas

2012-11-28 Thread Gleb Natapov
On Thu, Nov 29, 2012 at 12:53:56AM +, Dave Hansen wrote: > > In short, it is illegal to call __pa() on an address holding > a percpu variable. The times when this actually matters are > pretty obscure (certain 32-bit NUMA systems), but it _does_ > happen. It is important to keep KVM guests w

[PATCH v2 1/2] zsmalloc: add function to query object size

2012-11-28 Thread Nitin Gupta
Changelog v2 vs v1 - None Adds zs_get_object_size(handle) which provides the size of the given object. This is useful since the user (zram etc.) now do not have to maintain object sizes separately, saving on some metadata size (4b per page). The object handle encodes pair which currently points

[PATCH v2 2/2] zram: reduce metadata overhead

2012-11-28 Thread Nitin Gupta
Changelog v2 vs v1: - Use is_zero_page() instead of direct handle comparison - Use 1 as invalid handle value instead of -1 since handle is unsigned and thus -1 may refer to a valid object. While 1 is guaranteed to be invalid since can never refer to (end of) a valid object. - Remove references

Re: [PATCH v5 0/5] OMAP: iommu: hwmod, reset handling and runtime PM

2012-11-28 Thread Ohad Ben-Cohen
On Tue, Nov 20, 2012 at 3:05 AM, Omar Ramirez Luna wrote: > These patches are needed for remoteproc to work on OMAP4. > > Introduced iommu hwmod support for OMAP3 (iva, isp) and > OMAP4 (ipu, dsp), along with the corresponding runtime PM > and routines to deassert reset lines, enable/disable clock

Re: [PATCH v2] zram: Fix use-after-free bug in disk write case

2012-11-28 Thread Minchan Kim
Hi Nitin, On Wed, Nov 28, 2012 at 11:45:06PM -0800, Nitin Gupta wrote: > Changelog v2 vs v1: > - Changelog message now correctly explains the problem > > Fixes a bug introduced by commit c8f2f0db1 ("zram: Fix handling > of incompressible pages") which caused a freed buffer to be used > in case a

Re: [PATCH 03/14] perf tool: Fix period symbol_conf.field_sep display

2012-11-28 Thread Namhyung Kim
On Wed, 28 Nov 2012 14:52:38 +0100, Jiri Olsa wrote: > Currently we don't properly display hist data with > symbol_conf.field_sep separator. We need to display > either space or separator. > > Signed-off-by: Jiri Olsa > Cc: Arnaldo Carvalho de Melo > Cc: Peter Zijlstra > Cc: Ingo Molnar > Cc: P

Re: [PATCH v2 1/2] zsmalloc: add function to query object size

2012-11-28 Thread Minchan Kim
Sorry for late response. I should have hurried. I just sent by my comment of your previous version's mail thread. Please look at it. On Wed, Nov 28, 2012 at 11:48:30PM -0800, Nitin Gupta wrote: > Changelog v2 vs v1 > - None > > Adds zs_get_object_size(handle) which provides the size of > the giv

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