- 23 Mar, 2011 40 commits
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Rafael J. Wysocki authored
KVM uses a sysdev class and a sysdev for executing kvm_suspend() after interrupts have been turned off on the boot CPU (during system suspend) and for executing kvm_resume() before turning on interrupts on the boot CPU (during system resume). However, since both of these functions ignore their arguments, the entire mechanism may be replaced with a struct syscore_ops object which is simpler. Signed-off-by:
Rafael J. Wysocki <rjw@sisk.pl> Acked-by:
Avi Kivity <avi@redhat.com>
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Rafael J. Wysocki authored
The Intel IOMMU subsystem uses a sysdev class and a sysdev for executing iommu_suspend() after interrupts have been turned off on the boot CPU (during system suspend) and for executing iommu_resume() before turning on interrupts on the boot CPU (during system resume). However, since both of these functions ignore their arguments, the entire mechanism may be replaced with a struct syscore_ops object which is simpler. Signed-off-by:
Joerg Roedel <joerg.roedel@amd.com>
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Rafael J. Wysocki authored
The timekeeping subsystem uses a sysdev class and a sysdev for executing timekeeping_suspend() after interrupts have been turned off on the boot CPU (during system suspend) and for executing timekeeping_resume() before turning on interrupts on the boot CPU (during system resume). However, since both of these functions ignore their arguments, the entire mechanism may be replaced with a struct syscore_ops object which is simpler. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de>
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Rafael J. Wysocki authored
Some subsystems in the x86 tree need to carry out suspend/resume and shutdown operations with one CPU on-line and interrupts disabled and they define sysdev classes and sysdevs or sysdev drivers for this purpose. This leads to unnecessarily complicated code and excessive memory usage, so switch them to using struct syscore_ops objects for this purpose instead. Generally, there are three categories of subsystems that use sysdevs for implementing PM operations: (1) subsystems whose suspend/resume callbacks ignore their arguments entirely (the majority), (2) subsystems whose suspend/resume callbacks use their struct sys_device argument, but don't really need to do that, because they can be implemented differently in an arguably simpler way (io_apic.c), and (3) subsystems whose suspend/resume callbacks use their struct sys_device argument, but the value of that argument is always the same and could be ignored (microcode_core.c). In all of these cases the subsystems in question may be readily converted to using struct syscore_ops objects for power management and shutdown. Signed-off-by:
Ingo Molnar <mingo@elte.hu>
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6Linus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: ALSA: HDA: Realtek: Avoid unnecessary volume control index on Surround/Side ASoC: Support !REGULATOR build for sgtl5000 ALSA: hda - VIA: Fix VT1708 can't build up Headphone control issue ALSA: hda - VIA: Correct stream names for VT1818S ALSA: hda - VIA: Fix codec type for VT1708BCE at the right timing ALSA: hda - VIA: Fix invalid A-A path volume adjust issue ALSA: hda - VIA: Add missing support for VT1718S in A-A path ALSA: hda - VIA: Fix independent headphone no sound issue ALSA: hda - VIA: Fix stereo mixer recording no sound issue ALSA: hda - Set EAPD for Realtek ALC665 ALSA: usb - Remove trailing spaces from USB card name strings sound: read i_size with i_size_read() ASoC: Remove bogus check for register validity in debugfs write ASoC: mini2440: Fix uda134x codec problem.
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Cesar Eduardo Barros authored
A conflict between 52c50567 ("mm: swap: unlock swapfile inode mutex before closing file on bad swapfiles") and 83ef99be ("sys_swapon: remove did_down variable") caused a double unlock of the inode mutex (once in bad_swap: before the filp_close, once at the end just before returning). The patch which added the extra unlock cleared did_down to avoid unlocking twice, but the other patch removed the did_down variable. To fix, set inode to NULL after the first unlock, since it will be used after that point only for the final unlock. While checking this patch, I found a path which could unlock without locking, in case the same inode was added as a swapfile twice. To fix, move the setting of the inode variable further down, to just before claim_swapfile, which will lock the inode before doing anything else. Cc: Mel Gorman <mgorman@suse.de> Cc: Hugh Dickins <hughd@google.com> Cc: Eric B Munson <emunson@mgebm.net> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Cesar Eduardo Barros <cesarb@cesarb.net> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Heiko Carstens authored
Commit 34db18a0 ("smp: move smp setup functions to kernel/smp.c") causes this build error on s390 because of a missing init.h include: CC arch/s390/kernel/asm-offsets.s In file included from /home2/heicarst/linux-2.6/arch/s390/include/asm/spinlock.h:14:0, from include/linux/spinlock.h:87, from include/linux/seqlock.h:29, from include/linux/time.h:8, from include/linux/timex.h:56, from include/linux/sched.h:57, from arch/s390/kernel/asm-offsets.c:10: include/linux/smp.h:117:20: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'setup_nr_cpu_ids' include/linux/smp.h:118:20: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'smp_init' Fix it by adding the include statement. Signed-off-by:
Heiko Carstens <heiko.carstens@de.ibm.com> Acked-by:
WANG Cong <amwang@redhat.com> Signed-off-by:
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Takashi Iwai authored
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David Henningsson authored
Similar to commit 7e59e097, this patch avoids unnecessary volume control indices for more Realtek auto-parsers, e g the ALC66x family, on the "Surround" and "Side" controls. These indices cause these volume controls to be ignored by PulseAudio and vmaster and should be removed whenever possible. Cc: stable@kernel.org Reported-by:
Jan Losinski <losinski@wh2.tu-dresden.de> Signed-off-by:
David Henningsson <david.henningsson@canonical.com> Signed-off-by:
Takashi Iwai <tiwai@suse.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_txLinus Torvalds authored
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx: (66 commits) avr32: at32ap700x: fix typo in DMA master configuration dmaengine/dmatest: Pass timeout via module params dma: let IMX_DMA depend on IMX_HAVE_DMA_V1 instead of an explicit list of SoCs fsldma: make halt behave nicely on all supported controllers fsldma: reduce locking during descriptor cleanup fsldma: support async_tx dependencies and automatic unmapping fsldma: fix controller lockups fsldma: minor codingstyle and consistency fixes fsldma: improve link descriptor debugging fsldma: use channel name in printk output fsldma: move related helper functions near each other dmatest: fix automatic buffer unmap type drivers, pch_dma: Fix warning when CONFIG_PM=n. dmaengine/dw_dmac fix: use readl & writel instead of __raw_readl & __raw_writel avr32: at32ap700x: Specify DMA Flow Controller, Src and Dst msize dw_dmac: Setting Default Burst length for transfers as 16. dw_dmac: Allow src/dst msize & flow controller to be configured at runtime dw_dmac: Changing type of src_master and dest_master to u8. dw_dmac: Pass Channel Priority from platform_data dw_dmac: Pass Channel Allocation Order from platform_data ...
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Jean Delvare authored
I'm not sure why the read-only data section is excluded from the report, it seems as relevant as the other data sections (b and d). I've stripped the symbols starting with __mod_ as they can have their names dynamically generated and thus comparison between binaries is not possible. Signed-off-by:
Jean Delvare <khali@linux-fr.org> Cc: Andi Kleen <andi@firstfloor.org> Acked-by:
Nathan Lynch <ntl@pobox.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
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Jim Keniston authored
Instead of always creating a huge (268K) deflate_workspace with the maximum compression parameters (windowBits=15, memLevel=8), allow the caller to obtain a smaller workspace by specifying smaller parameter values. For example, when capturing oops and panic reports to a medium with limited capacity, such as NVRAM, compression may be the only way to capture the whole report. In this case, a small workspace (24K works fine) is a win, whether you allocate the workspace when you need it (i.e., during an oops or panic) or at boot time. I've verified that this patch works with all accepted values of windowBits (positive and negative), memLevel, and compression level. Signed-off-by:
Jim Keniston <jkenisto@us.ibm.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: David Miller <davem@davemloft.net> Cc: Chris Mason <chris.mason@oracle.com> Signed-off-by:
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Andrey Vagin authored
d_alloc_name return NULL in case error, but we expect errno in devpts_pty_new. Addresses http://bugzilla.openvz.org/show_bug.cgi?id=1758Signed-off-by:
Andrey Vagin <avagin@openvz.org> Signed-off-by:
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Roland Dreier authored
The test program below will hang because io_getevents() uses add_wait_queue_exclusive(), which means the wake_up() in io_destroy() only wakes up one of the threads. Fix this by using wake_up_all() in the aio code paths where we want to make sure no one gets stuck. // t.c -- compile with gcc -lpthread -laio t.c #include <libaio.h> #include <pthread.h> #include <stdio.h> #include <unistd.h> static const int nthr = 2; void *getev(void *ctx) { struct io_event ev; io_getevents(ctx, 1, 1, &ev, NULL); printf("io_getevents returned\n"); return NULL; } int main(int argc, char *argv[]) { io_context_t ctx = 0; pthread_t thread[nthr]; int i; io_setup(1024, &ctx); for (i = 0; i < nthr; ++i) pthread_create(&thread[i], NULL, getev, ctx); sleep(1); io_destroy(ctx); for (i = 0; i < nthr; ++i) pthread_join(thread[i], NULL); return 0; } Signed-off-by:Roland Dreier <roland@purestorage.com> Reviewed-by:
Jeff Moyer <jmoyer@redhat.com> Cc: <stable@kernel.org> Signed-off-by:
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Alexander Gordeev authored
Remove code enabled only when CONFIG_PREEMPT_RT is turned on because it is not used in the vanilla kernel. Signed-off-by:
Alexander Gordeev <lasaine@lvk.cs.msu.su> Cc: john stultz <johnstul@us.ibm.com> Cc: Rodolfo Giometti <giometti@linux.it> Signed-off-by:
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Stuart Swales authored
ADFS (FileCore) storage complies with the RISC OS filetype specification (12 bits of file type information is stored in the file load address, rather than using a file extension). The existing driver largely ignores this information and does not present it to the end user. It is desirable that stored filetypes be made visible to the end user to facilitate a precise copy of data and metadata from a hard disc (or image thereof) into a RISC OS emulator (such as RPCEmu) or to a network share which can be accessed by real Acorn systems. This patch implements a per-mount filetype suffix option (use -o ftsuffix=1) to present any filetype as a ,xyz hexadecimal suffix on each file. This type suffix is compatible with that used by RISC OS systems that access network servers using NFS client software and by RPCemu's host filing system. Signed-off-by:
Stuart Swales <stuart.swales.croftnuisk@gmail.com> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by:
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Stuart Swales authored
ADFS (FileCore) storage complies with the RISC OS timestamp specification (40-bit centiseconds since 01 Jan 1900 00:00:00). It is desirable that stored timestamp precision be maintained to facilitate a precise copy of data and metadata from a hard disc (or image thereof) into a RISC OS emulator (such as RPCEmu). This patch implements a full-precision conversion from ADFS to Unix timestamp as the existing driver, for ease of calculation with old 32-bit compilers, uses the common trick of shifting the 40-bits representing centiseconds around into 32-bits representing seconds thereby losing precision. Signed-off-by: Stuart Swales<stuart.swales.croftnuisk@gmail.com> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by:
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Stuart Swales authored
Kernel crashes in fs/adfs module when accessing directories with a large number of objects on mounted Acorn ADFS E+/F+ format discs (or images) as the existing code writes off the end of the fixed array of struct buffer_head pointers. Additionally, each directory access that didn't crash would leak a buffer as nr_buffers was not adjusted correctly for E+/F+ discs (was always left as one less than required). The patch fixes this by allocating a dynamically-sized set of struct buffer_head pointers if necessary for the E+/F+ case (many directories still do in fact fit in 2048 bytes) and sets the correct nr_buffers so that all buffers are released. Addresses https://bugzilla.kernel.org/show_bug.cgi?id=26072 Tested by tar'ing the contents of my RISC PC's E+ format 20Gb HDD which contains a number of large directories that previously crashed the kernel. Signed-off-by:
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Chen Gong authored
page-types.c doesn't supply a way to specify the debugfs path and the original debugfs path is not usual on most machines. This patch supplies a way to auto mount debugfs if needed. This patch is heavily inspired by tools/perf/utils/debugfs.c [akpm@linux-foundation.org: make functions static] [akpm@linux-foundation.org: fix debugfs_mount() signature] Signed-off-by:
Chen Gong <gong.chen@linux.intel.com> Reviewed-by:
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Reviewed-by:
Wu Fengguang <fengguang.wu@intel.com> Signed-off-by:
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Christian Kujau authored
I noticed the 'mcelog' program had no comment and then ended up "fixing" a few more things: * reiserfsck -V does not print "reiserfsprogs" (any more?) * is "udevinfo" still shipped? udevd certainly is * grub2 doesn't have a 'grub' binary * add a "# how to get the mcelog version" comment Signed-off-by:
Christian Kujau <lists@nerdbynature.de> Signed-off-by:
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Harry Wei authored
There is a missing case for "Chapter 3: Placing Braces and Spaces". We often know we should not use braces where a single statement. The first case is: if (condition) action(); Another case is: if (condition) do_this(); else do_that(); However, I can not find a description of the second case. Signed-off-by:
Harry Wei <harryxiyou@gmail.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by:
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Rakib Mullick authored
When CONFIG_SYSCTL=n, we get the following warning: fs/coda/sysctl.c:18: warning: `coda_tabl' defined but not used Fix the warning by making sure coda_table and it's callee function are in the same context. Also clean up the code by removing extra #ifdef. [akpm@linux-foundation.org: remove unneeded stub macros] Signed-off-by:
Rakib Mullick <rakib.mullick@gmail.com> Cc: Jan Harkes <jaharkes@cs.cmu.edu> Signed-off-by:
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David Rientjes authored
Not all 64-bit systems require ISA-style DMA, so allow it to be configurable. x86 utilizes the generic ISA DMA allocator from kernel/dma.c, so require it only when CONFIG_ISA_DMA_API is enabled. Disabling CONFIG_ISA_DMA_API is dependent on x86_64 since those machines do not have ISA slots and benefit the most from disabling the option (and on CONFIG_EXPERT as required by H. Peter Anvin). When disabled, this also avoids declaring claim_dma_lock(), release_dma_lock(), request_dma(), and free_dma() since those interfaces will no longer be provided. Signed-off-by:
David Rientjes <rientjes@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: "Luck, Tony" <tony.luck@intel.com> Signed-off-by:
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David Rientjes authored
The generic floppy disk driver utilizies the interface provided by CONFIG_ISA_DMA_API, specifically claim_dma_lock(), release_dma_lock(), request_dma(), and free_dma(). Thus, there's a strict dependency on the config option and the driver should only be loaded if the kernel supports ISA-style DMA. Signed-off-by:
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David Rientjes authored
8237A utilizes the interface provided by CONFIG_ISA_DMA_API, specifically claim_dma_lock() and release_dma_lock(). Thus, there's a strict dependency on the config option and the module should only be loaded if the kernel supports ISA-style DMA. Signed-off-by:
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David Rientjes authored
IORESOURCE_DMA cannot be assigned without utilizing the interface provided by CONFIG_ISA_DMA_API, specifically request_dma() and free_dma(). Thus, there's a strict dependency on the config option and limits IORESOURCE_DMA only to architectures that support ISA-style DMA. ia64 is not one of those architectures, so pnp_check_dma() no longer needs to be special-cased for that architecture. pnp_assign_resources() will now return -EINVAL if IORESOURCE_DMA is attempted on such a kernel. Signed-off-by:
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Andrew Chew authored
This is a platform driver that supports the built-in real-time clock on Tegra SOCs. Signed-off-by:
Andrew Chew <achew@nvidia.com> Acked-by:
Alessandro Zummo <a.zummo@towertech.it> Acked-by:
Wan ZongShun <mcuos.com@gmail.com> Acked-by:
Jon Mayo <jmayo@nvidia.com> Signed-off-by:
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Vasiliy Kulikov authored
Don't allow everybogy to write to NVRAM. Signed-off-by:
Vasiliy Kulikov <segoon@openwall.com> Cc: Andy Sharp <andy.sharp@onstor.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by:
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Ryan Mallon authored
Add alarm/wakeup support to rtc isl1208 driver Signed-off-by:
Ryan Mallon <ryan@bluewatersys.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by:
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Mark Brown authored
There is a general move to replace bus-specific PM ops with dev_pm_ops in order to facilitate core improvements. Do this conversion for DS1374. Signed-off-by:
Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: john stultz <johnstul@us.ibm.com> Signed-off-by:
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Davidlohr Bueso authored
In do_mounts_rd() if memory cannot be allocated, return -ENOMEM. Signed-off-by:
Davidlohr Bueso <dave@gnu.org> Signed-off-by:
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David Daney authored
With GCC-4.6 we get warnings about things being 'set but not used'. In load_elf_binary() this can happen with reloc_func_desc if ELF_PLAT_INIT is defined, but doesn't use the reloc_func_desc argument. Quiet the warning/error by marking reloc_func_desc as __maybe_unused. Signed-off-by:
David Daney <ddaney@caviumnetworks.com> Signed-off-by:
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Shawn Bohrer authored
Add a comment to ep_poll(), rename labels a bit clearly, fix a warning of unused variable from gcc and optimize the non-blocking path a little. Hinted-by:
Davide Libenzi <davidel@xmailserver.org> hannes@cmpxchg.org: : The non-blocking ep_poll path optimization introduced skipping over the : return value setup. : : Initialize it properly, my userspace gets upset by epoll_wait() returning : random things. : : In addition, remove the reinitialization at the fetch_events label, the : return value is garuanteed to be zero when execution reaches there. [hannes@cmpxchg.org: fix initialization] Signed-off-by:
Johannes Weiner <hannes@cmpxchg.org> Cc: Shawn Bohrer <shawn.bohrer@gmail.com> Acked-by:
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Davide Libenzi authored
Move the event readiness check into a proper inline, and use it uniformly inside ep_poll() code. Events in the ->ovflist are no less ready than the ones in ->rdllist. Signed-off-by:
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Konstantin Khlebnikov authored
Add brackets around typecasted argument in crc32() macro. Signed-off-by:
Konstantin Khlebnikov <khlebnikov@openvz.org> Signed-off-by:
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Dave Jones authored
Because the second and third arguments of memset have the same type, it turns out to be really easy to mix them up. This bug comes up time after time, so checkpatch should really be checking for it at patch submission time. Signed-off-by:
Dave Jones <davej@redhat.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Andy Whitcroft <apw@shadowen.org> Signed-off-by:
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Mike Frysinger authored
If you run checkpatch against multiple patches, and one of them has a whitespace issue which can be helped via a script (rpt_cleaners), you will see the same NOTE over and over for all subsequent patches. It makes it seem like those patches also have whitespace problems when in reality, there's only one or two bad apples. So reset rpt_cleaners back to 0 after we've issued the note so that it only shows up near the patch with the actual problems. Signed-off-by:
Mike Frysinger <vapier@gentoo.org> Cc: Andy Whitcroft <apw@canonical.com> Signed-off-by:
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Chris Ball authored
Use resource_size(). Signed-off-by:
Chris Ball <cjb@laptop.org> Cc: Madhusudhan Chikkature <madhu.cr@ti.com> Cc: <linux-mmc@vger.kernel.org> Signed-off-by:
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Chris Ball authored
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Mike Frysinger authored
Analog Devices' SigmaStudio can produce firmware blobs for devices with these DSPs embedded (like some audio codecs). Allow these device drivers to easily parse and load them. Signed-off-by:
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