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* loop: add management interface for on-demand device allocationKay Sievers2011-07-312-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Loop devices today have a fixed pre-allocated number of usually 8. The number can only be changed at module init time. To find a free device to use, /dev/loop%i needs to be scanned, and all devices need to be opened until a free one is possibly found. This adds a new /dev/loop-control device node, that allows to dynamically find or allocate a free device, and to add and remove loop devices from the running system: LOOP_CTL_ADD adds a specific device. Arg is the number of the device. It returns the device i or a negative error code. LOOP_CTL_REMOVE removes a specific device, Arg is the number the device. It returns the device i or a negative error code. LOOP_CTL_GET_FREE finds the next unbound device or allocates a new one. No arg is given. It returns the device i or a negative error code. The loop kernel module gets automatically loaded when /dev/loop-control is accessed the first time. The alias specified in the module, instructs udev to create this 'dead' device node, even when the module is not loaded. Example: cfd = open("/dev/loop-control", O_RDWR); # add a new specific loop device err = ioctl(cfd, LOOP_CTL_ADD, devnr); # remove a specific loop device err = ioctl(cfd, LOOP_CTL_REMOVE, devnr); # find or allocate a free loop device to use devnr = ioctl(cfd, LOOP_CTL_GET_FREE); sprintf(loopname, "/dev/loop%i", devnr); ffd = open("backing-file", O_RDWR); lfd = open(loopname, O_RDWR); err = ioctl(lfd, LOOP_SET_FD, ffd); Cc: Tejun Heo <tj@kernel.org> Cc: Karel Zak <kzak@redhat.com> Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
* loop: replace linked list of allocated devices with an idr indexKay Sievers2011-07-311-1/+0
| | | | | | | | | Replace the linked list, that keeps track of allocated devices, with an idr index to allow a more efficient lookup of devices. Cc: Tejun Heo <tj@kernel.org> Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
* block: add bsg helper libraryMike Christie2011-07-312-0/+77
| | | | | | | | | | | | | This moves the FC classes bsg code to the block layer and makes it a lib so that other classes like iscsi and SAS can use it. It is helpful because working with the request queue, bios, creating scatterlists, etc are a pain that the LLD does not have to worry about with normal IOs and should not have to worry about for bsg requests. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
* Merge branch 'nfs-for-3.1' of git://git.linux-nfs.org/projects/trondmy/linux-nfsLinus Torvalds2011-07-315-4/+23
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * '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 ...
| * pnfsblock: call and parse getdevicelistFred Isaman2011-07-311-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Call GETDEVICELIST during mount, then call and parse GETDEVICEINFO for each device returned. [pnfsblock: get rid of deprecated xdr macros] Signed-off-by: Jim Rees <rees@umich.edu> [pnfsblock: fix pnfs_deviceid references] Signed-off-by: Fred Isaman <iisaman@citi.umich.edu> [pnfsblock: fix print format warnings for sector_t and size_t] [pnfs-block: #include <linux/vmalloc.h>] [pnfsblock: no PNFS_NFS_SERVER] Signed-off-by: Benny Halevy <bhalevy@panasas.com> [pnfsblock: fix bug determining size of striped volume] [pnfsblock: fix oops when using multiple devices] 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> [pnfsblock: get rid of vmap and deviceid->area structure] 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>
| * pnfsblock: add device operationsJim Rees2011-07-311-0/+2
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Jim Rees <rees@umich.edu> 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> [upcall bugfixes] Signed-off-by: Peng Tao <peng_tao@emc.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * pnfs: cleanup_layoutcommitAndy Adamson2011-07-311-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | 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: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Benny Halevy <bhalevy@tonian.com> [rm inode and pnfs_layout_hdr args from cleanup_layoutcommit()] Signed-off-by: Jim Rees <rees@umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * pnfs: ask for layout_blksize and save it in nfs_serverFred Isaman2011-07-312-2/+4
| | | | | | | | | | | | | | | | | | | | | | Block layout needs it to determine IO size. Signed-off-by: Fred Isaman <iisaman@citi.umich.edu> Signed-off-by: Tao Guo <glorioustao@gmail.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Benny Halevy <bhalevy@tonian.com> Signed-off-by: Jim Rees <rees@umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * pnfs: GETDEVICELISTAndy Adamson2011-07-312-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | The block driver uses GETDEVICELIST Signed-off-by: Andy Adamson <andros@netapp.com> [pass struct nfs_server * to getdevicelist] [get machince creds for getdevicelist] [fix getdevicelist decode sizing] Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Benny Halevy <bhalevy@tonian.com> Signed-off-by: Jim Rees <rees@umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * pnfs: let layoutcommit handle a list of lsegPeng Tao2011-07-311-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | There can be multiple lseg per file, so layoutcommit should be able to handle it. [Needed in v3.0] CC: Stable Tree <stable@kernel.org> Signed-off-by: Peng Tao <peng_tao@emc.com> Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: Jim Rees <rees@umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * NFS: Fix spurious readdir cookie loop messagesTrond Myklebust2011-07-301-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the directory contents change, then we have to accept that the file->f_pos value may shrink if we do a 'search-by-cookie'. In that case, we should turn off the loop detection and let the NFS client try to recover. The patch also fixes a second loop detection bug by ensuring that after turning on the ctx->duped flag, we read at least one new cookie into ctx->dir_cookie before attempting to match with ctx->dup_cookie. Reported-by: Petr Vandrovec <petr@vandrovec.name> Cc: stable@kernel.org [2.6.39+] Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | Merge git://git.infradead.org/battery-2.6Linus Torvalds2011-07-314-1/+112
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 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
| * | power_supply: MAX17042: Support additional propertiesDonggeun Kim2011-07-081-0/+91
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch supports additional properties (PRESENT, CYCLE_COUNT, VOLTAGE_MAX, VOLTAGE_MIN_DESIGN, CURRENT_NOW, CURRENT_AVG, CHARGE_FULL, and TEMP). Plus, initialization code for registers is added. Signed-off-by: Donggeun Kim <dg77.kim@samsung.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: KyungMin Park <kyungmin.park@samsung.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
| * | power_supply: Add charger driver for MAX8998/LP3974Donggeun Kim2011-07-081-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch supports power supply APIs for MAX8998/LP3974. Signed-off-by: Donggeun Kim <dg77.kim@samsung.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: KyungMin Park <kyungmin.park@samsung.com> Acked-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
| * | power_supply: Add charger driver for MAX8997/8966Donggeun Kim2011-07-081-1/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | MAX8997/8966 chip is a multi-function device which includes PMIC, RTC, Fuel Gauge, MUIC, Haptic, Flash control, and Battery charging control. The driver for it is located at drivers/mfd. This patch supports battery charging control of MAX8997/8966 chip and provides power supply class information to userspace. Signed-off-by: Donggeun Kim <dg77.kim@samsung.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: KyungMin Park <kyungmin.park@samsung.com> Acked-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
| * | bq20z75: Add support for external notificationRhyland Klein2011-07-081-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adding support for external power change notification. One problem found is that there is a lag time before the sensor will return a new status. To ensure that we only fire off the power_supply_changed event when the status returned from the sensor is actually different, we delay sending the the notification, and instead poll on it looking for a change. The amount of time to poll is configurable via platform data. Signed-off-by: Rhyland Klein <rklein@nvidia.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
* | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6Linus Torvalds2011-07-311-0/+9
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 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
| * | | pcmcia: add PCMCIA_DEVICE_MANF_CARD_PROD_ID3Pavel Roskin2011-07-291-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is needed to match wireless cards with Intersil firmware that have ID 0x0156:0x0002 and the third ID "Version 01.02". Such cards are currently matched by orinoco_cs, which doesn't support WPA. They should be matched by hostap_cs. The first and the second product ID vary widely, so there are few users with some particular IDs. Of those, very few can submit a patch for hostap_cs or write a useful bugreport. It's still important to support their hardware properly. With PCMCIA_DEVICE_MANF_CARD_PROD_ID3, it should be possible to cover the remaining Intersil based designs that kept the numeric ID and the "version" of the reference design. Signed-off-by: Pavel Roskin <proski@gnu.org> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
* | | | Merge branch 'hwmon-for-linus' of ↵Linus Torvalds2011-07-301-0/+53
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/groeck/staging * 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/staging: (24 commits) hwmon: (lm90) Refactor reading of config2 register hwmon: (lm90) Make SA56004 detection more robust hwmon: (lm90) Simplify handling of extended local temp register hwmon: (pmbus) Add client driver for LM25066, LM5064, and LM5066 hwmon: (max34440) Add support for peak attributes hwmon: (max8688) Add support for peak attributes hwmon: (max16064) Add support for peak attributes hwmon: (adm1275) Add support for peak attributes hwmon: (pmbus) Add support for peak attributes hwmon: Add new attributes to sysfs ABI hwmon: (pmbus) Strengthen check for status register existence hwmon: (pmbus) Add support for virtual pages hwmon: (pmbus) Support reading and writing of word registers in device specific code hwmon: (pmbus) Increase attribute name size hwmon: (pmbus) Add ADP4000, NCP4200 and NCP4208 to list of supported devices hwmon: (pmbus) Add support for VID output voltage mode hwmon: (pmbus) Move PMBus drivers to drivers/hwmon/pmbus hwmon: (coretemp) Add core/pkg threshold support to Coretemp hwmon: (lm95241) Add support for LM95231 hwmon: LM95245 driver ...
| * | | | hwmon: Driver for NTC ThermistorsDonggeun Kim2011-07-281-0/+53
| |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for NTC Thermistor series. In this release, the following thermistors are supported: NCP15WB473, NCP18WB473, NCP03WB473, and NCP15WL333. This driver is based on the datasheet of MURATA. The driver in the patch does conversion from the raw ADC value (either voltage or resistence) to temperature. In order to use voltage values as input, the circuit schematics should be provided with the platform data. A compensation table for each type of thermistor is provided for the conversion. Signed-off-by: Donggeun Kim <dg77.kim@samsung.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: KyungMin Park <kyungmin.park@samsung.com> Reviewed-by: Shubhrajyoti D <shubhrajyoti@ti.com> Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
* | | | shm: handle separate PID namespaces caseVasiliy Kulikov2011-07-301-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | shm_try_destroy_orphaned() and shm_try_destroy_current() didn't handle the case of separate PID namespaces, but a single IPC namespace. If there are tasks with the same PID values using the same shmem object, the wrong destroy decision could be reached. On shm segment creation store the pointer to the creator task in shmid_kernel->shm_creator field and zero it on task exit. Then use the ->shm_creator insread of shm_cprid in both functions. As shmid_kernel object is already locked at this stage, no additional locking is needed. Signed-off-by: Vasiliy Kulikov <segoon@openwall.com> Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6Linus Torvalds2011-07-301-1/+0
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (71 commits) [SCSI] fcoe: cleanup cpu selection for incoming requests [SCSI] fcoe: add fip retry to avoid missing critical keep alive [SCSI] libfc: fix warn on in lport retry [SCSI] libfc: Remove the reference to FCP packet from scsi_cmnd in case of error [SCSI] libfc: cleanup sending SRR request [SCSI] libfc: two minor changes in comments [SCSI] libfc, fcoe: ignore rx frame with wrong xid info [SCSI] libfc: release exchg cache [SCSI] libfc: use FC_MAX_ERROR_CNT [SCSI] fcoe: remove unused ptype field in fcoe_rcv_info [SCSI] bnx2fc: Update copyright and bump version to 1.0.4 [SCSI] bnx2fc: Tx BDs cache in write tasks [SCSI] bnx2fc: Do not arm CQ when there are no CQEs [SCSI] bnx2fc: hold tgt lock when calling cmd_release [SCSI] bnx2fc: Enable support for sequence level error recovery [SCSI] bnx2fc: HSI changes for tape [SCSI] bnx2fc: Handle REC_TOV error code from firmware [SCSI] bnx2fc: REC/SRR link service request and response handling [SCSI] bnx2fc: Support 'sequence cleanup' task [SCSI] dh_rdac: Associate HBA and storage in rdac_controller to support partitions in storage ...
| * | | | [SCSI] fcoe: remove unused ptype field in fcoe_rcv_infoYi Zou2011-07-281-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is no need to cache the ptype in fcoe_rcv_info struct as it is never used anywhere. Signed-off-by: Yi Zou <yi.zou@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Robert Love <robert.w.love@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* | | | | Merge branch 'slub/lockless' of ↵Linus Torvalds2011-07-303-33/+64
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6 * 'slub/lockless' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6: (21 commits) slub: When allocating a new slab also prep the first object slub: disable interrupts in cmpxchg_double_slab when falling back to pagelock Avoid duplicate _count variables in page_struct Revert "SLUB: Fix build breakage in linux/mm_types.h" SLUB: Fix build breakage in linux/mm_types.h slub: slabinfo update for cmpxchg handling slub: Not necessary to check for empty slab on load_freelist slub: fast release on full slab slub: Add statistics for the case that the current slab does not match the node slub: Get rid of the another_slab label slub: Avoid disabling interrupts in free slowpath slub: Disable interrupts in free_debug processing slub: Invert locking and avoid slab lock slub: Rework allocator fastpaths slub: Pass kmem_cache struct to lock and freeze slab slub: explicit list_lock taking slub: Add cmpxchg_double_slab() mm: Rearrange struct page slub: Move page->frozen handling near where the page->freelist handling occurs slub: Do not use frozen page flag but a bit in the page counters ...
| * | | | | Avoid duplicate _count variables in page_structChristoph Lameter2011-07-181-18/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Restructure the union / struct cascade in struct page so that we only have one definition of _count. Tested-by: Hugh Dickins <hughd@google.com> Signed-off-by: Christoph Lameter <cl@linux.com> Signed-off-by: Pekka Enberg <penberg@kernel.org>
| * | | | | Revert "SLUB: Fix build breakage in linux/mm_types.h"Pekka Enberg2011-07-181-10/+15
| | | | | | | | | | | | | | | | | | | | | | | | This reverts commit ea6bd8ee1a2ccdffc38b2b1fcfe941addfafaade.
| * | | | | SLUB: Fix build breakage in linux/mm_types.hChristoph Lameter2011-07-071-15/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On Wed, 6 Jul 2011, Jonathan Cameron wrote: > Getting: > > CHK include/linux/version.h > CHK include/generated/utsrelease.h > make[1]: `include/generated/mach-types.h' is up to date. > CC arch/arm/kernel/asm-offsets.s > In file included from include/linux/sched.h:64:0, > from arch/arm/kernel/asm-offsets.c:13: > include/linux/mm_types.h:74:15: error: duplicate member '_count' > make[1]: *** [arch/arm/kernel/asm-offsets.s] Error 1 > make: *** [prepare0] Error 2 > > Issue looks to have been introduced by > > mm: Rearrange struct page > > fc9bb8c768abe7ae10861c3510e01a95f98d5933 > > Guessing it's a known issue, but just thought I'd flag it up in case > it's something very specific about my build. > > gcc-2.6 armv7a > > Reverting that patch works, but given I don't know the history, I'm > not proposing doing that in general! Well _count exists in two unionized structs but always has the same offset within the larger struct. Maybe ARM creates different offsets there for some reason? The following is a patch to restructure the union / structs combo in such a way that only a single definition of _count Reported-by: Jonathan Cameron <jic23@cam.ac.uk> Tested-by: Piotr Hosowicz <piotr@hosowicz.com> Signed-off-by: Christoph Lameter <cl@linux.com> Signed-off-by: Pekka Enberg <penberg@kernel.org>
| * | | | | slub: fast release on full slabChristoph Lameter2011-07-021-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make deactivation occur implicitly while checking out the current freelist. This avoids one cmpxchg operation on a slab that is now fully in use. Signed-off-by: Christoph Lameter <cl@linux.com> Signed-off-by: Pekka Enberg <penberg@kernel.org>
| * | | | | slub: Add statistics for the case that the current slab does not match the nodeChristoph Lameter2011-07-021-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Slub reloads the per cpu slab if the page does not satisfy the NUMA condition. Track those reloads since doing so has a performance impact. Signed-off-by: Christoph Lameter <cl@linux.com> Signed-off-by: Pekka Enberg <penberg@kernel.org>
| * | | | | slub: Add cmpxchg_double_slab()Christoph Lameter2011-07-021-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a function that operates on the second doubleword in the page struct and manipulates the object counters, the freelist and the frozen attribute. Signed-off-by: Christoph Lameter <cl@linux.com> Signed-off-by: Pekka Enberg <penberg@kernel.org>
| * | | | | mm: Rearrange struct pageChristoph Lameter2011-07-021-28/+59
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We need to be able to use cmpxchg_double on the freelist and object count field in struct page. Rearrange the fields in struct page according to doubleword entities so that the freelist pointer comes before the counters. Do the rearranging with a future in mind where we use more doubleword atomics to avoid locking of updates to flags/mapping or lru pointers. Create another union to allow access to counters in struct page as a single unsigned long value. The doublewords must be properly aligned for cmpxchg_double to work. Sadly this increases the size of page struct by one word on some architectures. But as a resultpage structs are now cacheline aligned on x86_64. Signed-off-by: Christoph Lameter <cl@linux.com> Signed-off-by: Pekka Enberg <penberg@kernel.org>
| * | | | | slub: Do not use frozen page flag but a bit in the page countersChristoph Lameter2011-07-022-7/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Do not use a page flag for the frozen bit. It needs to be part of the state that is handled with cmpxchg_double(). So use a bit in the counter struct in the page struct for that purpose. Signed-off-by: Christoph Lameter <cl@linux.com> Signed-off-by: Pekka Enberg <penberg@kernel.org>
* | | | | | Merge branch 'kconfig' of ↵Linus Torvalds2011-07-301-0/+32
|\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6 * 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6: (25 commits) kconfig: Introduce IS_ENABLED(), IS_BUILTIN() and IS_MODULE() xconfig: Abort close if configuration cannot be saved kconfig: fix missing "0x" prefix from S_HEX symbol in autoconf.h kconfig/nconf: remove useless conditionnal kconfig/nconf: prevent segfault on empty menu kconfig/nconf: use the generic menu_get_ext_help() nconfig: Avoid Wunused-but-set warning kconfig/conf: mark xfgets() private kconfig: remove pending prototypes for kconfig_load() kconfig/conf: add command line options' description kconfig/conf: reduce the scope of `defconfig_file' kconfig: use calloc() for expr allocation kconfig: introduce specialized printer kconfig: do not overwrite symbol direct dependency in assignment kconfig/gconf: silent missing prototype warnings kconfig/gconf: kill deadcode kconfig: nuke LKC_DIRECT_LINK cruft kconfig: nuke reference to SWIG kconfig: add missing <stdlib.h> inclusion kconfig: add missing <ctype.h> inclusion ... Fix up conflicts in scripts/kconfig/Makefile
| * | | | | | kconfig: Introduce IS_ENABLED(), IS_BUILTIN() and IS_MODULE()Michal Marek2011-07-291-0/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace the config_is_*() macros with a variant that allows for grepping for usage of CONFIG_* options in the code. Usage: if (IS_ENABLED(CONFIG_NUMA)) or #if IS_ENABLED(CONFIG_NUMA) The IS_ENABLED() macro evaluates to 1 if the argument is set (to either 'y' or 'm'), IS_BUILTIN() tests if the option is 'y' and IS_MODULE() test if the option is 'm'. Only boolean and tristate options are supported. Reviewed-by: Arnaud Lacombe <lacombar@gmail.com> Acked-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Michal Marek <mmarek@suse.cz>
* | | | | | | Merge branch 'v4l_for_linus' of ↵Linus Torvalds2011-07-3026-85/+1667
|\ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6 * 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (430 commits) [media] ir-mce_kbd-decoder: include module.h for its facilities [media] ov5642: include module.h for its facilities [media] em28xx: Fix DVB-C maxsize for em2884 [media] tda18271c2dd: Fix saw filter configuration for DVB-C @6MHz [media] v4l: mt9v032: Fix Bayer pattern [media] V4L: mt9m111: rewrite set_pixfmt [media] V4L: mt9m111: fix missing return value check mt9m111_reg_clear [media] V4L: initial driver for ov5642 CMOS sensor [media] V4L: sh_mobile_ceu_camera: fix Oops when USERPTR mapping fails [media] V4L: soc-camera: remove soc-camera bus and devices on it [media] V4L: soc-camera: un-export the soc-camera bus [media] V4L: sh_mobile_csi2: switch away from using the soc-camera bus notifier [media] V4L: add media bus configuration subdev operations [media] V4L: soc-camera: group struct field initialisations together [media] V4L: soc-camera: remove now unused soc-camera specific PM hooks [media] V4L: pxa-camera: switch to using standard PM hooks [media] NetUP Dual DVB-T/C CI RF: force card hardware revision by module param [media] Don't OOPS if videobuf_dvb_get_frontend return NULL [media] NetUP Dual DVB-T/C CI RF: load firmware according card revision [media] omap3isp: Support configurable HS/VS polarities ... Fix up conflicts: - arch/arm/mach-omap2/board-rx51-peripherals.c: cleanup regulator supply definitions in mach-omap2 vs OMAP3: RX-51: define vdds_csib regulator supply - drivers/staging/tm6000/tm6000-alsa.c (trivial)
| * | | | | | | [media] V4L: initial driver for ov5642 CMOS sensorBastian Hecht2011-07-271-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is an initial driver release for the Omnivision 5642 CMOS sensor. Signed-off-by: Bastian Hecht <hechtb@gmail.com> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| * | | | | | | [media] V4L: soc-camera: remove soc-camera bus and devices on itGuennadi Liakhovetski2011-07-272-19/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that v4l2 subdevices have got their own device objects, having one more device in soc-camera clients became redundant and confusing. This patch removes those devices and the soc-camera bus, they used to reside on. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| * | | | | | | [media] V4L: soc-camera: un-export the soc-camera busGuennadi Liakhovetski2011-07-271-5/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The soc-camera bus is now completely local again. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| * | | | | | | [media] V4L: sh_mobile_csi2: switch away from using the soc-camera bus notifierGuennadi Liakhovetski2011-07-272-4/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This moves us one more step closer to eliminating the soc-camera bus and devices on it. Besides, as a side effect, CSI-2 runtime PM on sh-mobile secomes finer grained now: we only have to power on the interface, when the device nodes are open. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| * | | | | | | [media] V4L: add media bus configuration subdev operationsGuennadi Liakhovetski2011-07-272-0/+73
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add media bus configuration types and two subdev operations to get supported mediabus configurations and to set a specific configuration. Subdevs can support several configurations, e.g., they can send video data on 1 or several lanes, can be configured to use a specific CSI-2 channel, in such cases subdevice drivers return bitmasks with all respective bits set. When a set-configuration operation is called, it has to specify a non-ambiguous configuration. Signed-off-by: Stanimir Varbanov <svarbanov@mm-sol.com> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| * | | | | | | [media] V4L: soc-camera: remove now unused soc-camera specific PM hooksGuennadi Liakhovetski2011-07-271-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | soc-camera host drivers shall be implementing their PM, using standard kernel methods, soc-camera specific hooks can die. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| * | | | | | | [media] v4l: add g_std_output callback to V4L2 subdevTomasz Stanislawski2011-07-271-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Callback is used to acquire current analog TV standard from a subdev. It is used to avoid keeping current standard in top-level driver. Signed-off-by: Tomasz Stanislawski <t.stanislaws@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| * | | | | | | [media] v4l: add g_dv_preset callback to V4L2 subdevTomasz Stanislawski2011-07-271-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Callback is used to acquire current digital video preset from a subdev. It is used to avoid keeping dv preset in top-level driver. Signed-off-by: Tomasz Stanislawski <t.stanislaws@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| * | | | | | | [media] v4l: add g_tvnorms_output callback to V4L2 subdevTomasz Stanislawski2011-07-271-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Callback is used to acquire TV norms supported by a subdev. It is used to avoid having standards in top-level driver. Signed-off-by: Tomasz Stanislawski <t.stanislaws@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| * | | | | | | [media] rc-core support for Microsoft IR keyboard/mouseJarod Wilson2011-07-271-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a custom IR protocol decoder, for the RC-6-ish protocol used by the Microsoft Remote Keyboard, apparently developed internally at Microsoft, and officially dubbed MCIR-2, per their March 2011 remote and transceiver requirements and specifications document, which also touches on this IR keyboard/mouse device. Its a standard keyboard with embedded thumb stick mouse pointer and mouse buttons, along with a number of media keys. The media keys are standard RC-6, identical to the signals from the stock MCE remotes, and will be handled as such. The keyboard and mouse signals will be decoded and delivered to the system by an input device registered specifically by this driver. Successfully tested with multiple mceusb-driven transceivers, as well as with fintek-cir and redrat3 hardware. Essentially, any raw IR hardware with enough sampling resolution should be able to use this decoder, nothing about it is at all receiver-hardware-specific. This work is inspired by lirc_mod_mce: The documentation there and code aided in understanding and decoding the protocol, but the bulk of the code is actually borrowed more from the existing in-kernel decoders than anything. I did recycle the keyboard keycode table, a few defines, and some of the keyboard and mouse data parsing bits from lirc_mod_mce though. Special thanks to James Meyer for providing the hardware, and being patient with me as I took forever to get around to writing this. callback routine to ensure we don't get any stuck keys, and used symbolic names for the keytable. Also cc'ing Florian this time, who I believe is the original mod-mce author... CC: Florian Demski <fdemski@users.sourceforge.net> Signed-off-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| * | | | | | | [media] v4l: add control definitions for codec devicesKamil Debski2011-07-271-1/+168
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add control definitions and documentation for controls specific to codec devices. Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| * | | | | | | [media] v4l: add fourcc definitions for compressed formatsKamil Debski2011-07-271-4/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add fourcc definitions and documentation for the following compressed formats: H264, H264 without start codes, MPEG1/2/4 ES, XVID, VC1 Annex G and Annex L compliant. Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| * | | | | | | [media] adp1653: Add driver for LED flash controllerSakari Ailus2011-07-271-0/+126
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds the driver for the adp1653 LED flash controller. This controller supports a high power led in flash and torch modes and an indicator light, sometimes also called privacy light. The adp1653 is used on the Nokia N900. Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi> Signed-off-by: Tuukka Toivonen <tuukkat76@gmail.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: David Cohen <dacohen@gmail.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| * | | | | | | [media] v4l: Add a class and a set of controls for flash devicesSakari Ailus2011-07-271-0/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a control class and a set of controls to support LED and Xenon flash devices. An example of such a device is the adp1653. Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| * | | | | | | [media] v4l2-ctrls: add new bitmask control typeHans Verkuil2011-07-271-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Sakari Ailus <sakari.ailus@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-15 17:26:04 +0000