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2011-03-25genirq: Expand generic show_interrupts()Thomas Gleixner3-1/+22
Some archs want to print extra information for certain irq_chips which is per irq and not per chip. Allow them to provide a chip callback to print the chip name and the extra information. PowerPC wants to print the LEVEL/EDGE type information. Make it configurable. Signed-off-by: Thomas Gleixner <[email protected]>
2011-03-25gpio: Fold irq_set_chip/irq_set_handler to irq_set_chip_and_handlerThomas Gleixner2-4/+3
Converted with coccinelle. Signed-off-by: Thomas Gleixner <[email protected]> Acked-by: Grant Likely <[email protected]> LKML-Reference: <[email protected]>
2011-03-25gpio: Cleanup genirq namespaceThomas Gleixner9-50/+50
Converted with coccinelle. Signed-off-by: Thomas Gleixner <[email protected]> Acked-by: Grant Likely <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]>
2011-03-25arm: ep93xx: Add basic interrupt infoRyan Mallon1-3/+4
For the time being can we fix up the ep93xx gpio code with the amended patch below. It keeps the information that the pin is also configured as an interrupt and cleans the code up a bit. [ tglx: Rebased it on the removal patch ] Signed-off-by: Ryan Mallon <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]>
2011-03-25arm/gpio: Remove three copies of broken and racy debug codeThomas Gleixner3-129/+0
gpiolib plus two gpio implementations in arm fiddle in the guts of irq_desc in a racy and buggy way. Remove the stuff. I already told the gpio folks that we can provide that information in a proper way if necessary. Signed-off-by: Thomas Gleixner <[email protected]> Acked-by: Grant Likely <[email protected]> LKML-Reference: <[email protected]>
2011-03-24xtensa: Use generic show_interrupts()Thomas Gleixner2-44/+10
Signed-off-by: Thomas Gleixner <[email protected]>
2011-03-24xtensa: Convert genirq namespaceThomas Gleixner3-13/+13
Scripted with coccinelle. Signed-off-by: Thomas Gleixner <[email protected]>
2011-03-24xtensa: Use generic IRQ Kconfig and set GENERIC_HARDIRQS_NO_DEPRECATEDThomas Gleixner1-3/+2
All chips converted. Signed-off-by: Thomas Gleixner <[email protected]> Cc: Chris Zankel <[email protected]> LKML-Reference: <[email protected]>
2011-03-24xtensa: Convert s6000 gpio irq_chip to new functionsThomas Gleixner1-18/+17
Also use proper wrappers for irq_desc access. Signed-off-by: Thomas Gleixner <[email protected]> Cc: Chris Zankel <[email protected]> LKML-Reference: <[email protected]>
2011-03-24xtensa: Convert main irq_chip to new functionsThomas Gleixner1-22/+21
Signed-off-by: Thomas Gleixner <[email protected]> Cc: Chris Zankel <[email protected]> LKML-Reference: <[email protected]>
2011-03-24um: Use generic show_interrupts()Thomas Gleixner2-46/+1
Signed-off-by: Thomas Gleixner <[email protected]>
2011-03-24um: Convert genirq namespaceThomas Gleixner1-5/+4
Scripted with coccinelle. Signed-off-by: Thomas Gleixner <[email protected]>
2011-03-24m32r: Use generic show_interrupts()Thomas Gleixner2-45/+1
Signed-off-by: Thomas Gleixner <[email protected]>
2011-03-24m32r: Convert genirq namespaceThomas Gleixner8-75/+75
Scripted with coccinelle. Signed-off-by: Thomas Gleixner <[email protected]>
2011-03-24h8300: Use generic show_interrupts()Thomas Gleixner2-31/+1
Signed-off-by: Thomas Gleixner <[email protected]>
2011-03-24h8300: Convert genirq namespaceThomas Gleixner1-1/+1
Scripted with coccinelle. Signed-off-by: Thomas Gleixner <[email protected]>
2011-03-24avr32: Cleanup eic_set_irq_type()Thomas Gleixner1-20/+11
No need to fiddle in irq_desc. The trigger mask can be written back into irq_data. Return IRQ_SET_MASK_OK_NOCOPY, so the generic code wont overwrite it again. Signed-off-by: Thomas Gleixner <[email protected]> Cc: Hans-Christian Egtvedt <[email protected]>
2011-03-24avr32: Use generic show_interrupts()Thomas Gleixner2-37/+1
Signed-off-by: Thomas Gleixner <[email protected]> Cc: Hans-Christian Egtvedt <[email protected]>
2011-03-24avr: Cleanup genirq namespaceThomas Gleixner5-17/+17
Scripted conversion to new function names with coccinelle. Signed-off-by: Thomas Gleixner <[email protected]> Cc: Hans-Christian Egtvedt <[email protected]>
2011-03-24avr32: Use generic IRQ config, enable GENERIC_HARDIRQS_NO_DEPRECATEDThomas Gleixner1-9/+4
Use the generic Kconfig for interrupts and enable GENERIC_HARDIRQS_NO_DEPRECATED. All conversions done. Signed-off-by: Thomas Gleixner <[email protected]> Cc: Hans-Christian Egtvedt <[email protected]> LKML-Reference: <[email protected]>
2011-03-24avr32: At32ap: Convert pop irq_chip to new functionsThomas Gleixner1-13/+10
Also replace the open coded handler call with the proper wrapper. Signed-off-by: Thomas Gleixner <[email protected]> Cc: Hans-Christian Egtvedt <[email protected]> LKML-Reference: <[email protected]>
2011-03-24avr32: At32ap: Convert intc irq_chip to new functionsThomas Gleixner1-7/+5
Also replace the open coded handler call with the proper wrapper. Signed-off-by: Thomas Gleixner <[email protected]> Cc: Hans-Christian Egtvedt <[email protected]> LKML-Reference: <[email protected]>
2011-03-24avr32: At32ap: Convert extint irq_chip to new functionsThomas Gleixner1-22/+23
Signed-off-by: Thomas Gleixner <[email protected]> Cc: Hans-Christian Egtvedt <[email protected]> LKML-Reference: <[email protected]>
2011-03-23genirq: Provide locked setter for chip, handler, nameThomas Gleixner1-5/+24
Some irq_set_type() callbacks need to change the chip and the handler when the trigger mode changes. We have already a (misnomed) setter function for the handler which can be called from irq_set_type(). Provide one which allows to set chip and name as well. Put the misnomed function under the COMPAT switch and provide a replacement. Signed-off-by: Thomas Gleixner <[email protected]>
2011-03-23genirq: Provide a lockdep helperThomas Gleixner1-0/+9
Some irq chips need to call genirq functions for nested chips from their callbacks. That upsets lockdep. So they need to set a different lock class for those nested chips. Provide a helper function to avoid open access to irq_desc. Signed-off-by: Thomas Gleixner <[email protected]>
2011-03-23genirq; Remove the last leftovers of the old sparse irq codeThomas Gleixner2-21/+0
All users converted. Get rid of it. Signed-off-by: Thomas Gleixner <[email protected]>
2011-03-22Merge branch 'next' of ↵Linus Torvalds16-1262/+1989
git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx * '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 ...
2011-03-22bloat-o-meter: include read-only data section in reportJean Delvare1-1/+3
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 <[email protected]> Cc: Andi Kleen <[email protected]> Acked-by: Nathan Lynch <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2011-03-22zlib: slim down zlib_deflate() workspace when possibleJim Keniston9-23/+71
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 <[email protected]> Cc: Herbert Xu <[email protected]> Cc: David Miller <[email protected]> Cc: Chris Mason <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2011-03-22fs/devpts/inode.c: correctly check d_alloc_name() return code in ↵Andrey Vagin1-1/+1
devpts_pty_new() 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=1758 Signed-off-by: Andrey Vagin <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2011-03-22aio: wake all waiters when destroying ctxRoland Dreier1-2/+2
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 <[email protected]> Reviewed-by: Jeff Moyer <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2011-03-22pps: remove unreachable codeAlexander Gordeev1-5/+0
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 <[email protected]> Cc: john stultz <[email protected]> Cc: Rodolfo Giometti <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2011-03-22adfs: add hexadecimal filetype suffix optionStuart Swales6-26/+99
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 <[email protected]> Cc: Russell King <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2011-03-22adfs: improve timestamp precisionStuart Swales1-21/+19
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<[email protected]> Cc: Russell King <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2011-03-22adfs: fix E+/F+ dir size > 2048 crashing kernelStuart Swales2-21/+84
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: Stuart Swales <[email protected]> Cc: Russell King <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2011-03-22Documentation/vm/page-types.c: auto debugfs mount for hwpoison operationChen Gong1-4/+101
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 [[email protected]: make functions static] [[email protected]: fix debugfs_mount() signature] Signed-off-by: Chen Gong <[email protected]> Reviewed-by: KOSAKI Motohiro <[email protected]> Reviewed-by: Wu Fengguang <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2011-03-22Documentation/Changes: minor correctionsChristian Kujau1-4/+4
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 <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2011-03-22Documentation/CodingStyle: flesh out if-else examplesHarry Wei1-0/+7
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 <[email protected]> Cc: Randy Dunlap <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2011-03-22codafs: fix compile warning when CONFIG_SYSCTL=nRakib Mullick1-7/+1
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. [[email protected]: remove unneeded stub macros] Signed-off-by: Rakib Mullick <[email protected]> Cc: Jan Harkes <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2011-03-22x86: allow CONFIG_ISA_DMA_API to be disabledDavid Rientjes2-4/+12
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 <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: "H. Peter Anvin" <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Bjorn Helgaas <[email protected]> Cc: Russell King <[email protected]> Cc: "Luck, Tony" <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2011-03-22x86: only compile floppy driver if CONFIG_ISA_DMA_API is enabledDavid Rientjes1-1/+1
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: David Rientjes <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: "H. Peter Anvin" <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Bjorn Helgaas <[email protected]> Cc: Russell King <[email protected]> Cc: "Luck, Tony" <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2011-03-22x86: only compile 8237A if CONFIG_ISA_DMA_API is enabledDavid Rientjes1-1/+2
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: David Rientjes <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: "H. Peter Anvin" <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Bjorn Helgaas <[email protected]> Cc: Russell King <[email protected]> Cc: "Luck, Tony" <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2011-03-22pnp: only assign IORESOURCE_DMA if CONFIG_ISA_DMA_API is enabledDavid Rientjes3-6/+10
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: David Rientjes <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: "H. Peter Anvin" <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Bjorn Helgaas <[email protected]> Cc: Russell King <[email protected]> Cc: "Luck, Tony" <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2011-03-22rtc: add real-time clock driver for NVIDIA TegraAndrew Chew3-0/+499
This is a platform driver that supports the built-in real-time clock on Tegra SOCs. Signed-off-by: Andrew Chew <[email protected]> Acked-by: Alessandro Zummo <[email protected]> Acked-by: Wan ZongShun <[email protected]> Acked-by: Jon Mayo <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2011-03-22drivers/rtc/rtc-ds1511.c: world-writable sysfs nvram fileVasiliy Kulikov1-1/+1
Don't allow everybogy to write to NVRAM. Signed-off-by: Vasiliy Kulikov <[email protected]> Cc: Andy Sharp <[email protected]> Cc: Alessandro Zummo <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2011-03-22drivers/rtc/rtc-isl1208.c: add alarm supportRyan Mallon1-5/+171
Add alarm/wakeup support to rtc isl1208 driver Signed-off-by: Ryan Mallon <[email protected]> Cc: Alessandro Zummo <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2011-03-22rtc: convert DS1374 to dev_pm_opsMark Brown1-6/+13
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 <[email protected]> Cc: Alessandro Zummo <[email protected]> Cc: john stultz <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2011-03-22init: return proper error code in do_mounts_rd()Davidlohr Bueso1-1/+1
In do_mounts_rd() if memory cannot be allocated, return -ENOMEM. Signed-off-by: Davidlohr Bueso <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2011-03-22binfmt_elf: quiet GCC-4.6 'set but not used' warning in load_elf_binary()David Daney1-1/+1
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 <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2011-03-22epoll: fix compiler warning and optimize the non-blocking pathShawn Bohrer1-5/+28
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: Andrew Morton <[email protected]> Signed-off-by: Davide Libenzi <[email protected]> [email protected]: : 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. [[email protected]: fix initialization] Signed-off-by: Johannes Weiner <[email protected]> Cc: Shawn Bohrer <[email protected]> Acked-by: Davide Libenzi <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
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