Kernel

[rfc][patch 0/2] another way to scale mmap_sem?
Hi, I'm sorry for the late and sorry state of these patches. I had some interesting offline issues and also had to strike while the iron is hot with the vfs patches as well. But anyway, mmap_sem scalability is a topic we'll be talking about at the MM meetup next week, so I wanted to contribue something here. ... 6 Aug 2010 10:27

2.6.35-03797-gfc1caf6: WARNING at iwl_free_tfds_in_queue+ iwlagn_txq_check_empty
with 2.6.35-03797-gfc1caf6 my kernel log seems to consists only of these two WARNINGs: [ 3032.962431] ------------[ cut here ]------------ [ 3032.962448] WARNING: at drivers/net/wireless/iwlwifi/iwl-agn-tx.c:1120 iwlagn_txq_check_empty+0x44/0x230 [iwlagn]() [ 3032.962453] Hardware name: Aspire 1810T [ 3032.962457... 6 Aug 2010 09:21

percpu: remove address_space attribute if !SMP
On 08/06/2010 02:46 PM, Namhyung Kim wrote: percpu data has no special meaning in case of !CONFIG_SMP. This removes lots of sparse warnings. Signed-off-by: Namhyung Kim <namhyung(a)gmail.com> But they should still be accessed through the accessors and if they are accessed through accessors, there shouldn... 6 Aug 2010 10:27

exit.c: support larger exit code
On 08/06, Zhang, Wei-Jovi (NSN - CN/Hangzhou) wrote: Nowadays userspace application use systemcall exit/exit_group only support one byte exit code. In some cases this exit code range is too small for some "big application"(like telecom software, 255 is not enough). So we can give some "big applicat... 9 Aug 2010 06:50

make-3.82 and built in firmware
Hello World I recently upgraded to the latest version of make, 3.82. One of the problems I've had with it is that I can no longer recompile my kernel with built in firmware enabled. If I have CONFIG_FIRMWARE_IN_KERNEL=y then the build fails like so: IKCFG kernel/config_data.h CC kernel/configs.o ... 6 Aug 2010 10:27

[PATCH] percpu: remove address_space attribute if !SMP
percpu data has no special meaning in case of !CONFIG_SMP. This removes lots of sparse warnings. Signed-off-by: Namhyung Kim <namhyung(a)gmail.com> diff --git a/include/linux/compiler.h b/include/linux/compiler.h index a5a472b..8dfd41d 100644 --- a/include/linux/compiler.h +++ b/include/linux/compiler.h @@ -15... 6 Aug 2010 09:21

omap3: make coresight register save across OFF modes a sysfs option
On Sun, Jul 25, 2010 at 08:05:20 +0300, Alexander Shishkin wrote: This adds a sysfs file at /sys/power/coresight_save which is used to control if the ETM and debug components' states should be saved and restored across OFF modes. The non-omap patches are merged to Russell's tree, so these three are the onl... 6 Aug 2010 09:21

[PATCH 3/5] ARM: add PrimeCell generic DMA to MMCI/PL180 v9
This extends the MMCI/PL180 driver with generic DMA engine support using the PrimeCell DMA engine interface. Signed-off-by: Linus Walleij <linus.walleij(a)stericsson.com> --- drivers/mmc/host/mmci.c | 244 ++++++++++++++++++++++++++++++++++++++++++-- drivers/mmc/host/mmci.h | 12 ++ include/linux/amba/mmc... 6 Aug 2010 08:16

[PATCH 1/5] ARM: add PrimeCell generic DMA to PL022 v9
This extends the PL022 SSP/SPI driver with generic DMA engine support using the PrimeCell DMA engine interface. Also fix up the test code for the U300 platform. Acked-by: Grant Likely <grant.likely(a)secretlab.ca> Signed-off-by: Linus Walleij <linus.walleij(a)stericsson.com> --- arch/arm/mach-u300/dummyspichip.c |... 6 Aug 2010 08:16

[PATCH 0/5] ARM: add PrimeCell generic DMA
This is a ninth iteration of this patch set after the updates to the DMAengine framework allowing for generic runtime channel control which match the needs of the PrimeCells. DMA is working for PL011 serial on the PB11MPCore with the posted PL08x driver, more testing on this later. I'll likely post a patch set ... 6 Aug 2010 08:16