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2008-05-27sound: Convert to menuconfigTakashi Iwai26-265/+203
Convert menu in sound Kconfig files to menuconfig and if. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-05-27sound: sound/oss/: remove CVS keywordsAdrian Bunk5-13/+0
This patch removes CVS keywords that weren't updated for a long time from comments. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-05-27[ALSA] remove CVS keywordsAdrian Bunk4-8/+0
This patch removes CVS keywords that weren't updated for a long time from comments. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-05-27[ALSA] usb-audio - Support for Roland SonicCell sound moduleChris Mennie1-0/+33
Added entry into usbquirks.h to recognize Roland SonicCell sound module by mostly duplicating the entry for the Roland SH-201. USB MIDI works just fine, though the USB audio is a little unreliable (but still works well enough). Signed-off-by: Chris Mennie <camennie@alumni.uwaterloo.ca> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-05-20[ALSA] ice1724: fix MIDIClemens Ladisch4-50/+177
The VT1724 MIDI port is not MPU-401 compatible; remove the hacks that try to make the MPU-401 library work with it, and just use some simple device-specific code. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Tested-by: Pavel Hofman <pavel.hofman@insite.cz>
2008-05-19[ALSA] soc - Fix s3c24xx-i2s LR sync while timer ticks are disabledWerner Almesberger1-2/+3
When timer ticks are disabled when calling sound/soc/s3c24xx/s3c24xx-i2s.c:s3c24xx_snd_lrsync and the LR signal never happens, we loop forever. This has been observed in the following call chain: snd_pcm_common_ioctl1 -> snd_pcm_action_lock_irq -> snd_pcm_action_single -> snd_pcm_do_resume -> soc_pcm_trigger -> s3c24xx_i2s_trigger The patch below changes the timeout mechanism to use udelay, which doesn't need timer ticks. Signed-off-by: Werner Almesberger <werner@openmoko.org> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-05-19[ALSA] soc - Convert Wolfson codec drivers to use bulk DAPM registrationMark Brown5-59/+20
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-05-19[ALSA] ASoC: core checkpatch cleanupsMark Brown1-46/+54
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-05-19[ALSA] ASoC: Clarify API for bias configurationMark Brown10-130/+150
Currently the ASoC core configures the bias levels in the system using a callback on codecs and machines called 'dapm_event', passing it PCI style power levels as SNDRV_CTL_POWER_ constants. This is more obscure than it needs to be and has caused confusion to driver authors, especially given that DAPM is also performing power management. Address this by renaming the callback function to 'set_bias_level' and using constants explicitly representing the off, standby, pre-on and on states which DAPM transitions through. Also unexport the API for setting bias level: there are currently no in-tree users of this API other than the core itself and it is likely that the core would need to be extended to cater for any users. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: Jarkko Nikula <jarkko.nikula@nokia.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-05-19[ALSA] ASoC: Make CPU and codec DAI operations have same typeMark Brown1-24/+6
The CPU and codec DAI operations differ only in the presence of the digital mute operation for the codec so they may as well be the same type. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-05-19[ALSA] ASoC: Remove in-code changelogsMark Brown14-50/+0
The overwhelming majority just say 'initial version' anyway. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-05-19[ALSA] hda - Fix DMA position inaccuracyTakashi Iwai1-18/+106
Many HD-audio controllers seem inaccurate about the IRQ timing of PCM period updates. This has caused problems on audio quality; e.g. JACK doesn't work with two periods. This patch fixes the problem by checking the current DMA position at IRQ handler and delays the period-update via a workq if it's inaccurate. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-05-19[ALSA] PCI168 snd-azt3328 Linux driver: another huge updateAndreas Mohr2-421/+968
- figured out 'Digital(ly) Enhanced Game Port' functionality, implemented support for it (eliminating gameport polling overhead) - removed optional joystick activation, gameport now enabled unconditionally, since we now support it via the PCI I/O space, not via conflict-prone legacy I/O (which I was thus able to DISABLE now)! - fix playback bug (a muted wave output would get unmuted upon start of playback, of course this is not what we want, thus remember mute state) - implement partial power management: when idle, lower clock rate and disable codec (reduced noise!), and disable gameport circuit when unused - instantiate OPL3 timer, too - much better implementation of snd_azf3328_mixer_write_volume_gradually() - slightly optimized interrupt handling - lots of cleanup This time, I also found a way to verify proper OPL3 operation via MIDI file playback (emulation via synth hardware). Signed-off-by: Andreas Mohr <andi@lisas.de> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-05-19[ALSA] ASoC: Convert N810 machine driver to use gpiolibJarkko Nikula1-11/+14
Use gpiolib since it is now available for OMAPs. Change also references to HW version RX44 to product name N810. Signed-off-by: Jarkko Nikula <jarkko.nikula@nokia.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-05-19[ALSA] soc - n810 - Update for bulk DAPM registration APIsMark Brown1-6/+4
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: Jarkko Nikula <jarkko.nikula@nokia.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-05-19[ALSA] soc - davinci-evm - Update for bulk DAPM registration APIsMark Brown1-10/+4
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-05-19[ALSA] soc - neo1973_wm8753 - Convert to bulk DAPM registration APIsMark Brown1-11/+6
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: Graeme Gregory <graeme@openmoko.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-05-19[ALSA] soc - eti_b1_wm8731 - Convert to use bulk DAPM control registrationMark Brown1-13/+4
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: Frank Mandarino <fmandarino@endrelia.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-05-19[ALSA] soc - Zaurus - Convert to bulk DAPM registration APIsMark Brown4-36/+18
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-05-19[ALSA] soc - tlv320aic3x - Convert to use bulk registration APIsMark Brown1-11/+4
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: Jarkko Nikula <jarkko.nikula@nokia.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-05-19[ALSA] soc - DAPM - Bulk route registrationMark Brown2-16/+73
ASoC codecs and machine drivers that use DAPM routes all cut'n'paste a loop iterating over a null terminated array of routes. Factor out this into a bulk registration function, improving the error reporting for most users, and deprecate the old API to help out of tree users pick up the changes. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: Graeme Gregory <graeme@openmoko.org> Cc: Frank Mandarino <fmandarino@endrelia.com> Cc: Jarkko Nikula <jarkko.nikula@nokia.com> Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-05-19[ALSA] soc - DAPM - Add bulk control registrationMark Brown2-0/+30
Most SoC drivers cut'n'paste a loop iterating over an array to register their DAPM controls. Provide a function they can call instead. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: Graeme Gregory <graeme@openmoko.org> Cc: Frank Mandarino <fmandarino@endrelia.com> Cc: Jarkko Nikula <jarkko.nikula@nokia.com> Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-05-19[ALSA] virtuoso: restrict period time to less than 10 sClemens Ladisch1-0/+6
Add a constraint for the period time so that there are less than ten seconds between interrupts so that ALSA does not assume that the device is dead. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-05-19[ALSA] oxygen: add symbols for buffer/period size constraintsClemens Ladisch1-16/+30
Introduce symbols for the buffer/period size constraints so that their limits and relationships become clearer. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-05-19[ALSA] oxygen: add PM supportClemens Ladisch6-0/+146
Add suspend/resume support. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-05-19[ALSA] virtuoso: add xonar_enable_output()Clemens Ladisch1-4/+11
Move the setting of the output enable GPIO bit to a separate function. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-05-19[ALSA] oxygen: separate out hardware initialization codeClemens Ladisch3-29/+62
Create separate functions for the code that initializes the hardware, as opposed to initializing internal driver state, so that they can be reused for resume support. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-05-19[ALSA] oxygen: simplify DAC volume initializationClemens Ladisch3-88/+77
When initializing the DAC volume registers, we can just use the generic volume update functions instead of setting the registers manually. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-05-19[ALSA] oxygen: save register writesClemens Ladisch4-32/+67
Save the written values of all CMI8788 and AC97 registers and of some of the DAC/ADC registers so that it is possible to restore the register state later. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-05-19[ALSA] oxygen: add symbol for I/O space sizeClemens Ladisch2-2/+4
Remove another magic number - add a symbol for the size of the PCI I/O range. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-05-19[ALSA] oxygen: fix version in MODULE_LICENSEClemens Ladisch4-4/+4
Adjust the MODULE_LICENSE strings to properly reflect the actual license. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-05-19[ALSA] Remove unneeded ugly hack for i386 in memalloc.cTakashi Iwai1-62/+0
The hack for dma_alloc_coherent() is no longer needed on 2.6.26 since the base code was improved. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-05-19[ALSA] snd_usb_caiaq: add support for 'Session I/O' interfaceDaniel Mack3-3/+11
This patch adds suport for Native Instruments new 'Guitar Rig Session I/O' audio hardware. Signed-off-by: Daniel Mack <daniel@caiaq.de> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-05-19[ALSA] i2c: cs8427.c use put_unaligned helperHarvey Harrison1-4/+2
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-05-19[ALSA] ac97 - Add virtual master control to VT1616/VT1617A codec.Daniel Jacobowitz2-0/+77
Enable VMASTER for VT1616 / VT1617A codec. Signed-off-by: Daniel Jacobowitz <dan@codesourcery.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-05-19[ALSA] soc - Patch to add debug messages to the neo1973_wm8753 (GTA01) sound ↵Tim Niemeyer1-0/+46
driver Signed-off-by: Tim Niemeyer <reddog@mastersword.de> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-05-19[ALSA] sound: fix export symbol typoStephen Rothwell1-1/+1
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-05-19[ALSA] soc - DAPM - add hook to read state of DAPM widgetGraeme Gregory2-0/+25
This adds a hook to read the power state of a DAPM widget, I use this in the gta02 driver to expose certain DAPM widgets in the mixer for ease of audio routing. Signed-off-by: Graeme Gregory <graeme@openmoko.org> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-05-19[ALSA] soc - tlv320aic3x - add GPIO supportDaniel Mack2-1/+101
This patch adds support for AIC3x GPIO lines. They can be configured for many possible functions as well as be driven manually. I also introduced i2c read functionality since the GPIO state register has to be read from hardware every time and can not be served from cache. Signed-off-by: Daniel Mack <daniel@caiaq.de> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-05-19[ALSA] soc - tlv320aic3x - revisit clock setupDaniel Mack2-134/+95
This patch cleans up the clocking setup for aic3x codecs. It drops the dividers table and determines the PLL control values programatically. Under certain conditions, the PLL is disabled entirely which could save some power. Signed-off-by: Daniel Mack <daniel@caiaq.de> Acked-by: Jarkko Nikula <jarkko.nikula@nokia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-07-13Linux 2.6.26Linus Torvalds1-1/+1
2008-07-13devcgroup: fix permission check when adding entry to child cgroupLi Zefan1-1/+1
# cat devices.list c 1:3 r # echo 'c 1:3 w' > sub/devices.allow # cat sub/devices.list c 1:3 w As illustrated, the parent group has no write permission to /dev/null, so it's child should not be allowed to add this write permission. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Acked-by: Serge Hallyn <serue@us.ibm.com> Cc: Serge Hallyn <serue@us.ibm.com> Cc: Paul Menage <menage@google.com> Cc: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-13devcgroup: always show positive major/minor numLi Zefan1-2/+2
# echo "b $((0x7fffffff)):$((0x80000000)) rwm" > devices.allow # cat devices.list b 214748364:-21474836 rwm though a major/minor number of 0x800000000 is meaningless, we should not cast it to a negative value. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Acked-by: Serge Hallyn <serue@us.ibm.com> Cc: Serge Hallyn <serue@us.ibm.com> Cc: Paul Menage <menage@google.com> Cc: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-13Documentation/HOWTO: correct wrong kernel bugzilla FAQ URLJiri Pirko1-1/+1
Signed-off-by: Jiri Pirko <jpirko@redhat.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-13Merge branch 'sched-fixes-for-linus' of ↵Linus Torvalds1-6/+18
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: cpusets, hotplug, scheduler: fix scheduler domain breakage
2008-07-13cpusets, hotplug, scheduler: fix scheduler domain breakageDmitry Adamushko1-6/+18
Commit f18f982ab ("sched: CPU hotplug events must not destroy scheduler domains created by the cpusets") introduced a hotplug-related problem as described below: Upon CPU_DOWN_PREPARE, update_sched_domains() -> detach_destroy_domains(&cpu_online_map) does the following: /* * Force a reinitialization of the sched domains hierarchy. The domains * and groups cannot be updated in place without racing with the balancing * code, so we temporarily attach all running cpus to the NULL domain * which will prevent rebalancing while the sched domains are recalculated. */ The sched-domains should be rebuilt when a CPU_DOWN ops. has been completed, effectively either upon CPU_DEAD{_FROZEN} (upon success) or CPU_DOWN_FAILED{_FROZEN} (upon failure -- restore the things to their initial state). That's what update_sched_domains() also does but only for !CPUSETS case. With f18f982ab, sched-domains' reinitialization is delegated to CPUSETS code: cpuset_handle_cpuhp() -> common_cpu_mem_hotplug_unplug() -> rebuild_sched_domains() Being called for CPU_UP_PREPARE and if its callback is called after update_sched_domains()), it just negates all the work done by update_sched_domains() -- i.e. a soon-to-be-offline cpu is included in the sched-domains and that makes it visible for the load-balancer while the CPU_DOWN ops. is in progress. __migrate_live_tasks() moves the tasks off a 'dead' cpu (it's already "offline" when this function is called). try_to_wake_up() is called for one of these tasks from another CPU -> the load-balancer (wake_idle()) picks up a "dead" CPU and places the task on it. Then e.g. BUG_ON(rq->nr_running) detects this a bit later -> oops. Signed-off-by: Dmitry Adamushko <dmitry.adamushko@gmail.com> Tested-by: Vegard Nossum <vegard.nossum@gmail.com> Cc: Paul Menage <menage@google.com> Cc: Max Krasnyansky <maxk@qualcomm.com> Cc: Paul Jackson <pj@sgi.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: miaox@cn.fujitsu.com Cc: rostedt@goodmis.org Cc: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-12Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds1-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: fix ldt limit for 64 bit
2008-07-12Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6Linus Torvalds5-7/+31
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6: [SCSI] bsg: fix oops on remove [SCSI] fusion: default MSI to disabled for SPI and FC controllers [SCSI] ipr: Fix HDIO_GET_IDENTITY oops for SATA devices [SCSI] mptspi: fix oops in mptspi_dv_renegotiate_work() [SCSI] erase invalid data returned by device
2008-07-12cifs: fix wksidarr declaration to be big-endian friendlyJeff Layton1-5/+5
The current definition of wksidarr works fine on little endian arches (since cpu_to_le32 is a no-op there), but on big-endian arches, it fails to compile with this error: error: braced-group within expression allowed only inside a function The problem is that this static declaration has cpu_to_le32 embedded within it, and that expands into a function macro. We need to use __constant_cpu_to_le32() instead. Signed-off-by: Jeff Layton <jlayton@redhat.com> Cc: Steven French <sfrench@us.ibm.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-12cifs: fix inode leak in cifs_get_inode_info_unixJeff Layton1-10/+10
Try this: mount a share with unix extensions create a file on it umount the share You'll get the following message in the ring buffer: VFS: Busy inodes after unmount of cifs. Self-destruct in 5 seconds. Have a nice day... ...the problem is that cifs_get_inode_info_unix is creating and hashing a new inode even when it's going to return error anyway. The first lookup when creating a file returns an error so we end up leaking this inode before we do the actual create. This appears to be a regression caused by commit 0e4bbde94fdc33f5b3d793166b21bf768ca3e098. The following patch seems to fix it for me, and fixes a minor formatting nit as well. Signed-off-by: Jeff Layton <jlayton@redhat.com> Acked-by: Steven French <sfrench@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>