- 31 Jul, 2011 40 commits
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Peter Huewe authored
This patch replaces the code for getting an unsigned long from a userspace buffer by a simple call to kstroul_from_user. This makes it easier to read and less error prone. Signed-off-by:
Peter Huewe <peterhuewe@gmx.de> Signed-off-by:
Samuel Ortiz <sameo@linux.intel.com>
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Peter Huewe authored
This patch replaces the code for getting an unsigned long from a userspace buffer by a simple call to kstroul_from_user. This makes it easier to read and less error prone. Signed-off-by:
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Lars-Peter Clausen authored
Use the generic irq chip framework for implementing the irq chip for the jz4740-adc driver. Signed-off-by:
Lars-Peter Clausen <lars@metafoo.de> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
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Mark Brown authored
Even if we would've BUG()ed we should still tidy up after ourselves if that isn't enabled in the kernel config. Signed-off-by:
Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by:
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Mark Brown authored
When the byte swap was factored out into the per-register I/O functions the register restore for the IRQ mask cache (which we use and store in CPU native format for the interrupt handler) was not updated to do a byte swap when it uses the bulk I/O. Fix this by writing the cache out one register at a time. Signed-off-by:
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Mark Brown authored
The WM831x AUXADC hardware can schedule multiple conversions at once, allowing higher performance when more than one source is in use as we can have the hardware start new conversions without having to wait for a register write. Take advantage of this in the interrupt driven case, maintaining a list of callers that are waiting for AUXADC conversions and completing them all simultaneously. The external interface of the AUXADC is not changed so there will be limited use of the feature immediately. Signed-off-by:
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Mark Brown authored
Switch on the device type before revision since anything we do here will be device as well as revision specific. Signed-off-by:
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Sascha Hauer authored
This allows boards to leave the irq_base field unitialized and prevents them having to reserve irqs in the platform. pdata can be optional for irq support now. Without pdata the driver allocates some free irq range. With pdata and irq_base > 0 the driver allocates exactly the specified irq. Without pdata the irq defaults to IRQF_TRIGGER_LOW. Signed-off-by:
Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by:
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Mark Brown authored
In preparation for some additional work on the wm831x AUXADC code move the support into a separate file. This is a simple code motion patch, there should be no functional changes. Signed-off-by:
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Mark Brown authored
Ensure that there's no possibility of loosing an AUXADC interrupt by reading the conversion result in the IRQ handler when using interrupts. Otherwise it's possible that under very heavy load a new conversion could be initiated before the acknowledgement for a previous interrupt has happened. Signed-off-by:
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Mark Brown authored
Use irq_allocate_desc() to get the IRQ range, which turns into a noop on non-sparse systems. Since all existing users are non-sparse there should be no compatibility issues. Signed-off-by:
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Mark Brown authored
The RTC uses the 32.768kHz crystal so if it's not enabled (and it can only be enabled via OTP or InstantConfig, not runtime software) the RTC can't function. Signed-off-by:
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Mark Brown authored
Allow platform data to flag the touchscreen as disabled so that if the touch driver is built in we don't end up causing lots of work by spuriously detecting touchscreen activity on systems where it isn't in use. Signed-off-by:
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Mark Brown authored
Systems using this functionality will be uncommon. Signed-off-by:
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Mark Brown authored
The WM831x IRQ set_type() operation is doing a direct register write when called but since set_type() is called with the bus lock held this isn't legal and could cause deadlocks in the IRQ core. Fix this by posting the updates into an array and syncing in the bus_sync_unlock() callback. Signed-off-by:
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git://git.linux-nfs.org/projects/trondmy/linux-nfsLinus Torvalds authored
* 'nfs-for-3.1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (28 commits) pnfsblock: write_pagelist handle zero invalid extents pnfsblock: note written INVAL areas for layoutcommit pnfsblock: bl_write_pagelist pnfsblock: bl_read_pagelist pnfsblock: cleanup_layoutcommit pnfsblock: encode_layoutcommit pnfsblock: merge rw extents pnfsblock: add extent manipulation functions pnfsblock: bl_find_get_extent pnfsblock: xdr decode pnfs_block_layout4 pnfsblock: call and parse getdevicelist pnfsblock: merge extents pnfsblock: lseg alloc and free pnfsblock: remove device operations pnfsblock: add device operations pnfsblock: basic extent code pnfsblock: use pageio_ops api pnfsblock: add blocklayout Kconfig option, Makefile, and stubs pnfs: cleanup_layoutcommit pnfs: ask for layout_blksize and save it in nfs_server ...
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git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6Linus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6: slab: use NUMA_NO_NODE slab: remove one NR_CPUS dependency
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git://git.kernel.org/pub/scm/linux/kernel/git/wfg/writebackLinus Torvalds authored
* 'urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/writeback: don't busy retry the inode on failed grab_super_passive()
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git://git.infradead.org/battery-2.6Linus Torvalds authored
* git://git.infradead.org/battery-2.6: gpio-charger: Fix checking return value of request_any_context_irq power_supply: MAX17042: Support additional properties max8903_charger: Allow platform data to be __initdata power_supply: Add charger driver for MAX8998/LP3974 power_supply: Add charger driver for MAX8997/8966 max17042_battery: Remove obsolete cleanup for clientdata twl4030_charger: Fix warnings wm831x_power: Support multiple instances wm831x_backup: Support multiple instances apm_power: Fix style error in macros s3c_adc_battery: Fix annotation for s3c_adc_battery_probe() bq20z75: Enable detection after registering bq20z75: Add support for external notification
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git://git.kernel.org/pub/scm/linux/kernel/git/brodo/cpupowerutilsLinus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/brodo/cpupowerutils: cpupower: Do detect IDA (opportunistic processor performance) via cpuid cpupower: Show Intel turbo ratio support via ./cpupower frequency-info cpupowerutils: increase MAX_LINE_LEN cpupower: Rename package from cpupowerutils to cpupower cpupowerutils: Rename: libcpufreq->libcpupower cpupowerutils: use kernel version-derived version string cpupowerutils: utils - ConfigStyle bugfixes cpupowerutils: helpers - ConfigStyle bugfixes cpupowerutils: idle_monitor - ConfigStyle bugfixes cpupowerutils: lib - ConfigStyle bugfixes cpupowerutils: bench - ConfigStyle bugfixes cpupowerutils: do not update po files on each and every compile cpupowerutils: remove ccdv, use kernel quiet/verbose mechanism cpupowerutils: use COPYING, CREDITS from top-level directory cpupowerutils - cpufrequtils extended with quite some features
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git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6Linus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6: smc91c92_cs.c: fix bogus compiler warning orinoco_cs: be more careful when matching cards with ID 0x0156:0x0002 hostap_cs: support cards with "Version 01.02" as third product ID pcmcia: add PCMCIA_DEVICE_MANF_CARD_PROD_ID3 pxa2xx pcmcia - stargate 2 use gpio array. pcmcia: pxa2xx: remove empty socket_init / socket_resume functions. drivers:pcmcia:soc_common: make socket_init and socket_suspend optional
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Peng Tao authored
For invalid extents, find other pages in the same fsblock and write them out. [pnfsblock: write_begin] Signed-off-by:
Fred Isaman <iisaman@citi.umich.edu> Signed-off-by:
Benny Halevy <bhalevy@panasas.com> Signed-off-by:
Benny Halevy <bhalevy@tonian.com> Signed-off-by:
Peng Tao <peng_tao@emc.com> Signed-off-by:
Jim Rees <rees@umich.edu> Signed-off-by:
Trond Myklebust <Trond.Myklebust@netapp.com>
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Fred Isaman authored
Signed-off-by:
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Fred Isaman authored
Note: When upper layer's read/write request cannot be fulfilled, the block layout driver shouldn't silently mark the page as error. It should do what can be done and leave the rest to the upper layer. To do so, we should set rdata/wdata->res.count properly. When upper layer re-send the read/write request to finish the rest part of the request, pgbase is the position where we should start at. [pnfsblock: bl_write_pagelist support functions] [pnfsblock: bl_write_pagelist adjust for missing PG_USE_PNFS] Signed-off-by:
Zhang Jingwang <yyalone@gmail.com> [pnfs-block: use new write_pagelist api] Signed-off-by:
Boaz Harrosh <bharrosh@panasas.com> Signed-off-by:
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Fred Isaman authored
Note: When upper layer's read/write request cannot be fulfilled, the block layout driver shouldn't silently mark the page as error. It should do what can be done and leave the rest to the upper layer. To do so, we should set rdata/wdata->res.count properly. When upper layer re-send the read/write request to finish the rest part of the request, pgbase is the position where we should start at. [pnfsblock: mark IO error with NFS_LAYOUT_{RW|RO}_FAILED] Signed-off-by: -
Fred Isaman authored
In blocklayout driver. There are two things happening while layoutcommit/cleanup. 1. the modified extents are encoded. 2. On cleanup the extents are put back on the layout rw extents list, for reads. In the new system where actual xdr encoding is done in encode_layoutcommit() directly into xdr buffer, these are the new commit stages: 1. On setup_layoutcommit, the range is adjusted as before and a structure is allocated for communication with bl_encode_layoutcommit && bl_cleanup_layoutcommit (Generic layer provides a void-star to hang it on) 2. bl_encode_layoutcommit is called to do the actual encoding directly into xdr. The commit-extent-list is not freed and is stored on above structure. FIXME: The code is not yet converted to the new XDR cleanup 3. On cleanup the commit-extent-list is put back by a call to set_to_rw() as before, but with no need for XDR decoding of the list as before. And the commit-extent-list is freed. Finally allocated structure is freed. [rm inode and pnfs_layout_hdr args from cleanup_layoutcommit()] Signed-off-by:
Tao Guo <guotao@nrchpc.ac.cn> [pnfsblock: cleanup_layoutcommit wants a status parameter] Signed-off-by:
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Fred Isaman authored
In blocklayout driver. There are two things happening while layoutcommit/cleanup. 1. the modified extents are encoded. 2. On cleanup the extents are put back on the layout rw extents list, for reads. In the new system where actual xdr encoding is done in encode_layoutcommit() directly into xdr buffer, these are the new commit stages: 1. On setup_layoutcommit, the range is adjusted as before and a structure is allocated for communication with bl_encode_layoutcommit && bl_cleanup_layoutcommit (Generic layer provides a void-star to hang it on) 2. bl_encode_layoutcommit is called to do the actual encoding directly into xdr. The commit-extent-list is not freed and is stored on above structure. FIXME: The code is not yet converted to the new XDR cleanup 3. On cleanup the commit-extent-list is put back by a call to set_to_rw() as before, but with no need for XDR decoding of the list as before. And the commit-extent-list is freed. Finally allocated structure is freed. [rm inode and pnfs_layout_hdr args from cleanup_layoutcommit()] [pnfsblock: get rid of deprecated xdr macros] Signed-off-by:
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Fred Isaman authored
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Fred Isaman authored
Adds working implementations of various support functions to handle INVAL extents, needed by writes, such as bl_mark_sectors_init and bl_is_sector_init. [pnfsblock: fix 64-bit compiler warnings for extent manipulation] Signed-off-by:
Zhang Jingwang <zhangjingwang@nrchpc.ac.cn> Signed-off-by:
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Fred Isaman authored
Implement bl_find_get_extent(), one of the core extent manipulation routines. [pnfsblock: Lookup list entry of layouts and tags in reverse order] Signed-off-by:
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Fred Isaman authored
XDR decodes the block layout payload sent in LAYOUTGET result, storing the result in an extent list. [pnfsblock: get rid of deprecated xdr macros] Signed-off-by:
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Fred Isaman authored
Call GETDEVICELIST during mount, then call and parse GETDEVICEINFO for each device returned. [pnfsblock: get rid of deprecated xdr macros] Signed-off-by:
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Fred Isaman authored
Replace a stub, so that extents underlying the layouts are properly added, merged, or ignored as necessary. Signed-off-by:
Mingyang Guo <guomingyang@nrchpc.ac.cn> Signed-off-by:
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Fred Isaman authored
Signed-off-by:
Zhang Jingwang <Jingwang.Zhang@emc.com> Signed-off-by:
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Jim Rees authored
Signed-off-by:
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Jim Rees authored
Signed-off-by:
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Fred Isaman authored
Adds structures and basic create/delete code for extents. Signed-off-by:
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Benny Halevy authored
[pnfsblock: use pnfs_generic_pg_init_read/write] Signed-off-by:
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Fred Isaman authored
Define a configuration variable to enable/disable compilation of the block driver code. Add the minimal structure for a pnfs block layout driver, and empty list-heads that will hold the extent data [pnfsblock: make NFS_V4_1 select PNFS_BLOCK] Signed-off-by:
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Andy Adamson authored
This gives layout driver a chance to cleanup structures they put in at encode_layoutcommit. Signed-off-by:
Andy Adamson <andros@netapp.com> [fixup layout header pointer for layoutcommit] Signed-off-by:
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