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2009-03-07percpu: replace pcpu_realloc() with pcpu_mem_alloc() and pcpu_mem_free()Tejun Heo
Impact: code reorganization for later changes With static map handling moved to pcpu_split_block(), pcpu_realloc() only clutters the code and it's also unsuitable for scheduled locking changes. Implement and use pcpu_mem_alloc/free() instead. Signed-off-by: Tejun Heo <tj@kernel.org>
2009-03-06x86, pebs: correct qualifier passed to ds_write_config() from ds_request_pebs()Markus Metzger
ds_write_config() can write the BTS as well as the PEBS part of the DS config. ds_request_pebs() passes the wrong qualifier, which results in the wrong configuration to be written. Reported-by: Stephane Eranian <eranian@googlemail.com> Signed-off-by: Markus Metzger <markus.t.metzger@intel.com> LKML-Reference: <20090305085721.A22550@sedona.ch.intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-03-06x86, bts: remove bad warningMarkus Metzger
In case a ptraced task is reaped (while the tracer is still attached), ds_exit_thread() is called before ptrace_exit(). The latter will release the bts_tracer and remove the thread's ds_ctx. The former will WARN() if the context is not NULL. Oleg Nesterov submitted patches that move ptrace_exit() before exit_thread() and thus reverse the order of the above calls. Remove the bad warning. I will add it again when Oleg's changes are in. Signed-off-by: Markus Metzger <markus.t.metzger@intel.com> LKML-Reference: <20090305084954.A22000@sedona.ch.intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-03-06x86: rename do_not_nx to disable_nx in mm/init_64.cPekka Enberg
As a preparational step for unifying noexec handling on 32-bit and 64-bit, rename the do_not_nx variable to disable_nx on 64-bit. Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> LKML-Reference: <1236265497.31324.11.camel@penberg-laptop> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-03-06x86: fix uninitialized variable in init_memory_mapping()Pekka Enberg
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> LKML-Reference: <1236265466.31324.9.camel@penberg-laptop> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-03-06x86: make "memtest" like "memtest=17"Yinghai Lu
Impact: make boot command line "memtest" do one loop by default So don't need to guess many patterns in one loop. Signed-off-by: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <49B10532.3020105@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-03-06ALSA: hda - Fix headphone-detect regression with multiple HP jacksTakashi Iwai
The recent changes over the DAC detection mechanism in patch_sigmatel.c breaks the HP detection on the machines with multiple HP jacks. It's basically because of the workaround to support the multi-channel output. Since the HP detection is more important feature, disable the HP-swap workaroud temporarily. Reference: Novell bnc#482052 https://bugzilla.novell.com/show_bug.cgi?id=482052 Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-03-06ALSA: hda - Fix typos in slave controls in patch_sigmatel.cTakashi Iwai
"Headphone Playback ..." appears twice in slave_vols[] and slave_sws[]. They should be "Headphone Playback2 ..." Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-03-06block: fix missing bio back/front segment size setting in blk_recount_segments()Jens Axboe
Commit 1e42807918d17e8c93bf14fbb74be84b141334c1 introduced a bug where we don't get front/back segment sizes in the bio in blk_recount_segments(). Fix this by tracking the back bio as well as the front bio in __blk_recalc_rq_segments(), this also cleans up the interface by getting rid of the segment size pointer passing. Tested-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-03-06x86, percpu: setup reserved percpu area for x86_64Tejun Heo
Impact: fix relocation overflow during module load x86_64 uses 32bit relocations for symbol access and static percpu symbols whether in core or modules must be inside 2GB of the percpu segement base which the dynamic percpu allocator doesn't guarantee. This patch makes x86_64 reserve PERCPU_MODULE_RESERVE bytes in the first chunk so that module percpu areas are always allocated from the first chunk which is always inside the relocatable range. This problem exists for any percpu allocator but is easily triggered when using the embedding allocator because the second chunk is located beyond 2GB on it. This patch also changes the meaning of PERCPU_DYNAMIC_RESERVE such that it only indicates the size of the area to reserve for dynamic allocation as static and dynamic areas can be separate. New PERCPU_DYNAMIC_RESERVED is increased by 4k for both 32 and 64bits as the reserved area separation eats away some allocatable space and having slightly more headroom (currently between 4 and 8k after minimal boot sans module area) makes sense for common case performance. x86_32 can address anywhere from anywhere and doesn't need reserving. Mike Galbraith first reported the problem first and bisected it to the embedding percpu allocator commit. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: Mike Galbraith <efault@gmx.de> Reported-by: Jaswinder Singh Rajput <jaswinder@kernel.org>
2009-03-06percpu, module: implement reserved allocation and use it for module percpu ↵Tejun Heo
variables Impact: add reserved allocation functionality and use it for module percpu variables This patch implements reserved allocation from the first chunk. When setting up the first chunk, arch can ask to set aside certain number of bytes right after the core static area which is available only through a separate reserved allocator. This will be used primarily for module static percpu variables on architectures with limited relocation range to ensure that the module perpcu symbols are inside the relocatable range. If reserved area is requested, the first chunk becomes reserved and isn't available for regular allocation. If the first chunk also includes piggy-back dynamic allocation area, a separate chunk mapping the same region is created to serve dynamic allocation. The first one is called static first chunk and the second dynamic first chunk. Although they share the page map, their different area map initializations guarantee they serve disjoint areas according to their purposes. If arch doesn't setup reserved area, reserved allocation is handled like any other allocation. Signed-off-by: Tejun Heo <tj@kernel.org>
2009-03-06percpu: add an indirection ptr for chunk page map accessTejun Heo
Impact: allow sharing page map, no functional difference yet Make chunk->page access indirect by adding a pointer and renaming the actual array to page_ar. This will be used by future changes. Signed-off-by: Tejun Heo <tj@kernel.org>
2009-03-06x86: make embedding percpu allocator return excessive free spaceTejun Heo
Impact: reduce unnecessary memory usage on certain configurations Embedding percpu allocator allocates unit_size * smp_num_possible_cpus() bytes consecutively and use it for the first chunk. However, if the static area is small, this can result in excessive prellocated free space in the first chunk due to PCPU_MIN_UNIT_SIZE restriction. This patch makes embedding percpu allocator preallocate only what's necessary as described by PERPCU_DYNAMIC_RESERVE and return the leftover to the bootmem allocator. Signed-off-by: Tejun Heo <tj@kernel.org>
2009-03-06percpu: use negative for auto for pcpu_setup_first_chunk() argumentsTejun Heo
Impact: argument semantic cleanup In pcpu_setup_first_chunk(), zero @unit_size and @dyn_size meant auto-sizing. It's okay for @unit_size as 0 doesn't make sense but 0 dynamic reserve size is valid. Alos, if arch @dyn_size is calculated from other parameters, it might end up passing in 0 @dyn_size and malfunction when the size is automatically adjusted. This patch makes both @unit_size and @dyn_size ssize_t and use -1 for auto sizing. Signed-off-by: Tejun Heo <tj@kernel.org>
2009-03-06percpu: improve first chunk initial area map handlingTejun Heo
Impact: no functional change When the first chunk is created, its initial area map is not allocated because kmalloc isn't online yet. The map is allocated and initialized on the first allocation request on the chunk. This works fine but the scattering of initialization logic between the init function and allocation path is a bit confusing. This patch makes the first chunk initialize and use minimal statically allocated map from pcpu_setpu_first_chunk(). The map resizing path still needs to handle this specially but it's more straight-forward and gives more latitude to the init path. This will ease future changes. Signed-off-by: Tejun Heo <tj@kernel.org>
2009-03-06percpu: cosmetic renames in pcpu_setup_first_chunk()Tejun Heo
Impact: cosmetic, preparation for future changes Make the following renames in pcpur_setup_first_chunk() in preparation for future changes. * s/free_size/dyn_size/ * s/static_vm/first_vm/ * s/static_chunk/schunk/ Signed-off-by: Tejun Heo <tj@kernel.org>
2009-03-06percpu: clean up percpu constantsTejun Heo
Impact: cleaup Make the following cleanups. * There isn't much arch-specific about PERCPU_MODULE_RESERVE. Always define it whether arch overrides PERCPU_ENOUGH_ROOM or not. * blackfin overrides PERCPU_ENOUGH_ROOM to align static area size. Do it by default. * percpu allocation sizes doesn't have much to do with the page size. Don't use PAGE_SHIFT in their definition. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Bryan Wu <cooloney@kernel.org>
2009-03-05Merge branch 'x86/uv' into x86/coreIngo Molnar
2009-03-05Merge branch 'x86/doc' into x86/coreIngo Molnar
2009-03-05Merge branch 'x86/mm' into x86/coreIngo Molnar
2009-03-05Merge branch 'x86/mce2' into x86/coreIngo Molnar
2009-03-05Merge branch 'x86/urgent' into x86/coreIngo Molnar
Conflicts: arch/x86/include/asm/fixmap_64.h Semantic merge: arch/x86/include/asm/fixmap.h Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-03-05[WATCHDOG] orion5x_wdt.c: 'ORION5X_TCLK' undeclaredWim Van Sebroeck
orion5x_wdt no longer compiled after the changes in commit ebe35aff883496c07248df82c8576c3b6e84bbbe ("Orion: prepare for runtime-determined timer tick rate"). The tick rate define (ORION5X_TCLK) was removed in favor of a runtime detection. The quick fix is to add the define in the watchdog driver. The fix is not correct for all supported orion5x platforms, but since the supported platforms right now are 133 Mhz and 166 Mhz, it won't be _that_ far off. ;-) A fix that uses the runtime-determined timer tick rate will be applied later. Signed-off-by: Wim Van Sebroeck <wim@iguana.be> Cc: Kristof Provost <kristof@sigsegv.be> Acked-by: Lennert Buytenhek <buytenh@wantstofly.org> Cc: Nicolas Pitre <nico@cam.org> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Andrew Morton <akpm@linux-foundation.org>
2009-03-05iwlwifi: fix error flow in iwl*_pci_probeReinette Chatre
Both the agn and 3945 drivers has some problems with dealing with errors in their probe functions. Ensure that a goto will undo only things that was done before the goto was called. Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-03-05rt2x00 : more devices to rt73usb.cXose Vazquez Perez
add more usb_dev to rt73usb.c . IDs 'stolen' from the windows inf file(10/21/2008, 1.03.02.0000) plus some from the Ralink linux driver(2009_0206_RT73_Linux_STA_Drv1.1.0.2.tar.bz2) Signed-off-by: Xose Vazquez Perez <xose.vazquez@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-03-05rt2x00 : more devices to rt2500usb.cXose Vazquez Perez
add more usb_dev to rt2500usb.c . IDs 'stolen' from the windows inf file(02/12/2009, 2.01.01.0015). Signed-off-by: Xose Vazquez Perez <xose.vazquez@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-03-06Blackfin arch: SPI_MMC is now mainlined MMC_SPIMichael Hennerich
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-06Blackfin arch: disable legacy /proc/scsi/ support by defaultMike Frysinger
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-06Blackfin arch: remove duplicated ANOMALY_05000448 ifdef checkMike Frysinger
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-05ata: add CFA specific identify data wordsSergei Shtylyov
Declare CFA specific identify data words 162 and 163 for future use. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> [bart: update patch summary/description] Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2009-03-06Blackfin arch: add stubs for anomalies 447 and 448Mike Frysinger
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-05remove stale comment from <linux/hdreg.h>Bartlomiej Zolnierkiewicz
HDIO_GET_IDENTITY returns 256 words currently. Noticed by Norman Diamond. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2009-03-05AT91: initialize Compact Flash on AT91SAM9263 cpuStanislaw Gruszka
Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl> Cc: Andrew Victor <avictor.za@gmail.com> Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Acked-by: Andrew Victor <linux@maxim.org.za> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2009-03-05ide: add at91_ide driverStanislaw Gruszka
This is IDE host driver for AT91 (SAM9, CAP9, AT572D940HF) Static Memory Controller with Compact Flash True IDE Mode logic. Driver have to switch 8/16 bit bus width when accessing Task Tile or Data Register. Moreover some extra things need to be done when setting PIO mode. Only PIO mode is used, hardware have no DMA support. If interrupt line is connected through GPIO extra quirk is needed to cope with fake interrupts. Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl> Cc: Andrew Victor <avictor.za@gmail.com> Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2009-03-05ide: allow to wrap interrupt handlerStanislaw Gruszka
Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl> Cc: Andrew Victor <linux@maxim.org.za> [bart: minor checkpatch.pl / CodingStyle fixups] Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2009-03-05ide-iops: fix odd-length ATAPI PIO transfersSergei Shtylyov
Commit 9567b349f7e7dd7e2483db99ee8e4a6fe0caca38 (ide: merge ->atapi_*put_bytes and ->ata_*put_data methods) introduced a regression WRT the odd-length ATAPI PIO transfers -- the final word didn't get written (causing command timeouts). Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2009-03-05ide: NULL noise: drivers/ide/ide-*.cHannes Eder
Fix this sparse warnings: drivers/ide/ide-disk_proc.c:130:11: warning: Using plain integer as NULL pointer drivers/ide/ide-floppy_proc.c:32:11: warning: Using plain integer as NULL pointer drivers/ide/ide-proc.c:234:11: warning: Using plain integer as NULL pointer drivers/ide/ide-tape.c:2141:11: warning: Using plain integer as NULL pointer Signed-off-by: Hannes Eder <hannes@hanneseder.net> Cc: trivial@kernel.org Cc: kernel-janitors@vger.kernel.org Cc: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2009-03-05ide: expiry() returns int, negative expiry() return values won't be noticedRoel Kluin
bart: It seems like the bug could cause insanely long timeouts for: - ATA_DMA_ERR error in dma_timer_expiry() - commands without ->expiry in tc86c001_timer_expiry() (TC86C001 IDE controller only) Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: Andrew Morton <akpm@linux-foundation.org> [bart: port it to the current tree] Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2009-03-05x86: UV, SGI RTC: add generic system vector, build fix on UPIngo Molnar
Make ack_APIC_irq() build on !SMP && !APIC too. Cc: Dimitri Sivanich <sivanich@sgi.com> LKML-Reference: <20090304185605.GA24419@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-03-05[WATCHDOG] gef_wdt.c: fsl_get_sys_freq() failure not noticedRoel Kluin
fsl_get_sys_freq() may return -1 when 'soc' isn't found, but in gef_wdt_probe() 'freq' is unsigned, so the test doesn't catch that. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Wim Van Sebroeck <wim@iguana.be> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2009-03-05[WATCHDOG] ks8695_wdt.c: 'CLOCK_TICK_RATE' undeclaredAlexey Dobriyan
On arm-acs5k_tiny: drivers/watchdog/ks8695_wdt.c:68: error: 'CLOCK_TICK_RATE' undeclared (first use in this function) Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Wim Van Sebroeck <wim@iguana.be> Cc: stable <stable@kernel.org>
2009-03-05x86: pre-initialize boot_cpu_data.x86_phys_bits to avoid system_state testsJeremy Fitzhardinge
Impact: cleanup, micro-optimization Pre-initialize boot_cpu_data.x86_phys_bits to a reasonable default to remove the use of system_state tests in __virt_addr_valid() and __phys_addr(). Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-03-05x86-32: use specific __vmalloc_start_set flag in __virt_addr_validJeremy Fitzhardinge
Rather than relying on the ever-unreliable system_state, add a specific __vmalloc_start_set flag to indicate whether the vmalloc area has meaningful boundaries yet, and use that in x86-32's __phys_addr and __virt_addr_valid. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-03-05x86: clean up old gcc warningsJeremy Fitzhardinge
gcc 3.2.2 reports: In file included from /usr/src/all/linux-next/arch/x86/include/asm/page.h:8, from /usr/src/all/linux-next/arch/x86/include/asm/processor.h:18, from /usr/src/all/linux-next/arch/x86/include/asm/atomic_32.h:6, from /usr/src/all/linux-next/arch/x86/include/asm/atomic.h:2, from include/linux/crypto.h:20, from arch/x86/kernel/asm-offsets_32.c:7, from arch/x86/kernel/asm-offsets.c:2: /usr/src/all/linux-next/arch/x86/include/asm/page_types.h:54: warning: parameter has incomplete type /usr/src/all/linux-next/arch/x86/include/asm/page_types.h:56: warning: parameter has incomplete type In file included from /usr/src/all/linux-next/arch/x86/include/asm/page.h:8, from /usr/src/all/linux-next/arch/x86/include/asm/processor.h:18, from include/linux/prefetch.h:14, from include/linux/list.h:6, from include/linux/module.h:9, from init/main.c:13: /usr/src/all/linux-next/arch/x86/include/asm/page_types.h:54: warning: parameter has incomplete type /usr/src/all/linux-next/arch/x86/include/asm/page_types.h:56: warning: parameter has incomplete type This is a bogus warning, but moving the pat-related functions into asm/pat.h and including asm/pgtable_types.h should fix it. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Reported-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-03-05x86: move init_memory_mapping() to common mm/init.c, build fix on 32-bit PAEIngo Molnar
Impact: build fix Cc: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <1236257708-27269-14-git-send-email-penberg@cs.helsinki.fi> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-03-05x86: move function and variable declarations to asm/init.hPekka Enberg
Impact: cleanup Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <1236257708-27269-17-git-send-email-penberg@cs.helsinki.fi> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-03-05x86: unify kernel_physical_mapping_init() function signaturesPekka Enberg
Impact: cleanup In preparation for moving the function declaration to a header file, unify 32-bit and 64-bit signatures. Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <1236257708-27269-16-git-send-email-penberg@cs.helsinki.fi> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-03-05x86: fix up some bad global variable names in mm/init.cPekka Enberg
Impact: cleanup The table_start, table_end, and table_top are too generic for global namespace so rename them to be more specific. Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <1236257708-27269-15-git-send-email-penberg@cs.helsinki.fi> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-03-05x86: move init_memory_mapping() to common mm/init.cPekka Enberg
Impact: cleanup This patch moves the init_memory_mapping() function to common mm/init.c. Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <1236257708-27269-14-git-send-email-penberg@cs.helsinki.fi> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-03-05x86: add stub init_gbpages() for 32-bit init_memory_mapping()Pekka Enberg
Impact: cleanup This patch adds an empty static inline init_gbpages() for the 32-bit version of init_memory_mapping() making both versions identical. Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <1236257708-27269-13-git-send-email-penberg@cs.helsinki.fi> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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