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2009-01-10Merge branch 'cpus4096-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'cpus4096-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: [IA64] fix typo in cpumask_of_pcibus() x86: fix x86_32 builds for summit and es7000 arch's cpumask: use work_on_cpu in acpi-cpufreq.c for read_measured_perf_ctrs cpumask: use work_on_cpu in acpi-cpufreq.c for drv_read and drv_write cpumask: use cpumask_var_t in acpi-cpufreq.c cpumask: use work_on_cpu in acpi/cstate.c cpumask: convert struct cpufreq_policy to cpumask_var_t cpumask: replace CPUMASK_ALLOC etc with cpumask_var_t x86: cleanup remaining cpumask_t ops in smpboot code cpumask: update pci_bus_show_cpuaffinity to use new cpumask API cpumask: update local_cpus_show to use new cpumask API ia64: cpumask fix for is_affinity_mask_valid()
2009-01-10rbtree: add const qualifier to some functionsArtem Bityutskiy
The 'rb_first()', 'rb_last()', 'rb_next()' and 'rb_prev()' calls take a pointer to an RB node or RB root. They do not change the pointed objects, so add a 'const' qualifier in order to make life of the users of these functions easier. Indeed, if I have my own constant pointer &const struct my_type *p, and I call 'rb_next(&p->rb)', I get a GCC warning: warning: passing argument 1 of ‘rb_next’ discards qualifiers from pointer target type Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-09filesystem freeze: implement generic freeze featureTakashi Sato
The ioctls for the generic freeze feature are below. o Freeze the filesystem int ioctl(int fd, int FIFREEZE, arg) fd: The file descriptor of the mountpoint FIFREEZE: request code for the freeze arg: Ignored Return value: 0 if the operation succeeds. Otherwise, -1 o Unfreeze the filesystem int ioctl(int fd, int FITHAW, arg) fd: The file descriptor of the mountpoint FITHAW: request code for unfreeze arg: Ignored Return value: 0 if the operation succeeds. Otherwise, -1 Error number: If the filesystem has already been unfrozen, errno is set to EINVAL. [akpm@linux-foundation.org: fix CONFIG_BLOCK=n] Signed-off-by: Takashi Sato <t-sato@yk.jp.nec.com> Signed-off-by: Masayuki Hamaguchi <m-hamaguchi@ys.jp.nec.com> Cc: <xfs-masters@oss.sgi.com> Cc: <linux-ext4@vger.kernel.org> Cc: Christoph Hellwig <hch@lst.de> Cc: Dave Kleikamp <shaggy@austin.ibm.com> Cc: Dave Chinner <david@fromorbit.com> Cc: Alasdair G Kergon <agk@redhat.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-09filesystem freeze: add error handling of write_super_lockfs/unlockfsTakashi Sato
Currently, ext3 in mainline Linux doesn't have the freeze feature which suspends write requests. So, we cannot take a backup which keeps the filesystem's consistency with the storage device's features (snapshot and replication) while it is mounted. In many case, a commercial filesystem (e.g. VxFS) has the freeze feature and it would be used to get the consistent backup. If Linux's standard filesystem ext3 has the freeze feature, we can do it without a commercial filesystem. So I have implemented the ioctls of the freeze feature. I think we can take the consistent backup with the following steps. 1. Freeze the filesystem with the freeze ioctl. 2. Separate the replication volume or create the snapshot with the storage device's feature. 3. Unfreeze the filesystem with the unfreeze ioctl. 4. Take the backup from the separated replication volume or the snapshot. This patch: VFS: Changed the type of write_super_lockfs and unlockfs from "void" to "int" so that they can return an error. Rename write_super_lockfs and unlockfs of the super block operation freeze_fs and unfreeze_fs to avoid a confusion. ext3, ext4, xfs, gfs2, jfs: Changed the type of write_super_lockfs and unlockfs from "void" to "int" so that write_super_lockfs returns an error if needed, and unlockfs always returns 0. reiserfs: Changed the type of write_super_lockfs and unlockfs from "void" to "int" so that they always return 0 (success) to keep a current behavior. Signed-off-by: Takashi Sato <t-sato@yk.jp.nec.com> Signed-off-by: Masayuki Hamaguchi <m-hamaguchi@ys.jp.nec.com> Cc: <xfs-masters@oss.sgi.com> Cc: <linux-ext4@vger.kernel.org> Cc: Christoph Hellwig <hch@lst.de> Cc: Dave Kleikamp <shaggy@austin.ibm.com> Cc: Dave Chinner <david@fromorbit.com> Cc: Alasdair G Kergon <agk@redhat.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-09memstick: annotate endianness of attribute structsHarvey Harrison
The code was shifting the endianness appropriately everywhere, annotate the structs to avoid the sparse warnings when assigning the endian types to the struct members, or passing them to be[16|32]_to_cpu: drivers/memstick/core/mspro_block.c:331:4: warning: cast to restricted __be16 drivers/memstick/core/mspro_block.c:333:4: warning: cast to restricted __be16 drivers/memstick/core/mspro_block.c:335:4: warning: cast to restricted __be16 drivers/memstick/core/mspro_block.c:337:4: warning: cast to restricted __be16 drivers/memstick/core/mspro_block.c:341:4: warning: cast to restricted __be16 drivers/memstick/core/mspro_block.c:347:4: warning: cast to restricted __be32 drivers/memstick/core/mspro_block.c:356:4: warning: cast to restricted __be16 drivers/memstick/core/mspro_block.c:358:4: warning: cast to restricted __be16 drivers/memstick/core/mspro_block.c:364:4: warning: cast to restricted __be16 drivers/memstick/core/mspro_block.c:367:4: warning: cast to restricted __be16 drivers/memstick/core/mspro_block.c:369:4: warning: cast to restricted __be16 drivers/memstick/core/mspro_block.c:371:4: warning: cast to restricted __be16 drivers/memstick/core/mspro_block.c:377:4: warning: cast to restricted __be16 drivers/memstick/core/mspro_block.c:478:4: warning: cast to restricted __be16 drivers/memstick/core/mspro_block.c:480:4: warning: cast to restricted __be16 drivers/memstick/core/mspro_block.c:482:4: warning: cast to restricted __be16 drivers/memstick/core/mspro_block.c:484:4: warning: cast to restricted __be16 drivers/memstick/core/mspro_block.c:486:4: warning: cast to restricted __be16 drivers/memstick/core/mspro_block.c:689:22: expected unsigned int [unsigned] [assigned] data_address drivers/memstick/core/mspro_block.c:689:22: got restricted __be32 [usertype] <noident> drivers/memstick/core/mspro_block.c:697:3: warning: cast to restricted __be32 drivers/memstick/core/mspro_block.c:960:17: warning: incorrect type in initializer (different base types) drivers/memstick/core/mspro_block.c:960:17: expected unsigned short [unsigned] data_count drivers/memstick/core/mspro_block.c:960:17: got restricted __be16 [usertype] <noident> drivers/memstick/core/mspro_block.c:993:6: warning: cast to restricted __be16 drivers/memstick/core/mspro_block.c:995:28: warning: cast to restricted __be16 Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Cc: Alex Dubov <oakad@yahoo.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-09compiler-gcc.h: add more comments to RELOC_HIDEAndi Kleen
Requested by C. Lameter Signed-off-by: Andi Kleen <ak@linux.intel.com> Cc: Christoph Lameter <cl@linux-foundation.org> Cc: Andi Kleen <andi@firstfloor.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Mike Travis <travis@sgi.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Richard Henderson <rth@twiddle.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-09Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: Revert "driver core: create a private portion of struct device" Revert "driver core: move klist_children into private structure" Revert "driver core: move knode_driver into private structure" Revert "driver core: move knode_bus into private structure"
2009-01-09Merge branch 'for_2.6.29' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/kkeil/ISDN-2.6 * 'for_2.6.29' of git://git.kernel.org/pub/scm/linux/kernel/git/kkeil/ISDN-2.6: (28 commits) mISDN: Add HFC USB driver mISDN: Add layer1 prim MPH_INFORMATION_REQ mISDN: Fix kernel crash when doing hardware conference with more than two members mISDN: Added missing create_l1() call mISDN: Add MODULE_DEVICE_TABLE() to hfcpci mISDN: Minor cleanups mISDN: Create /sys/class/mISDN mISDN: Add missing release functions mISDN: Add different different timer settings for hfc-pci mISDN: Minor fixes mISDN: Correct busy device detection mISDN: Fix deactivation, if peer IP is removed from l1oip instance. mISDN: Add ISDN_P_TE_UP0 / ISDN_P_NT_UP0 mISDN: Fix irq detection mISDN: Add ISDN sample clock API to mISDN core mISDN: Return error on E-channel access mISDN: Add E-Channel logging features mISDN: Use protocol to detect D-channel mISDN: Fixed more indexing bugs mISDN: Make debug output a little bit more verbose ...
2009-01-09Revert "driver core: create a private portion of struct device"Greg Kroah-Hartman
This reverts commit 2831fe6f9cc4e16c103504ee09a47a084297c0f3. Turns out that device_initialize shouldn't fail silently. This series needs to be reworked in order to get into proper shape. Reported-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-09Revert "driver core: move klist_children into private structure"Greg Kroah-Hartman
This reverts commit 11c3b5c3e08f4d855cbef52883c266b9ab9df879. Turns out that device_initialize shouldn't fail silently. This series needs to be reworked in order to get into proper shape. Reported-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-09Revert "driver core: move knode_driver into private structure"Greg Kroah-Hartman
This reverts commit 93e746db183b3bdbbda67900f79b5835f9cb388f. Turns out that device_initialize shouldn't fail silently. This series needs to be reworked in order to get into proper shape. Reported-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-09Revert "driver core: move knode_bus into private structure"Greg Kroah-Hartman
This reverts commit b9daa99ee533578e3f88231e7a16784dcb44ec42. Turns out that device_initialize shouldn't fail silently. This series needs to be reworked in order to get into proper shape. Reported-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-09Merge git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-2.6-nommuLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-2.6-nommu: NOMMU: Support XIP on initramfs NOMMU: Teach kobjsize() about VMA regions. FLAT: Don't attempt to expand the userspace stack to fill the space allocated FDPIC: Don't attempt to expand the userspace stack to fill the space allocated NOMMU: Improve procfs output using per-MM VMAs NOMMU: Make mmap allocation page trimming behaviour configurable. NOMMU: Make VMAs per MM as for MMU-mode linux NOMMU: Delete askedalloc and realalloc variables NOMMU: Rename ARM's struct vm_region NOMMU: Fix cleanup handling in ramfs_nommu_get_umapped_area()
2009-01-09Merge branch 'for-linus' of git://git.o-hand.com/linux-rpurdie-ledsLinus Torvalds
* 'for-linus' of git://git.o-hand.com/linux-rpurdie-leds: leds: ledtrig-timer - on deactivation hardware blinking should be disabled leds: Add suspend/resume to the core class leds: Add WM8350 LED driver leds: leds-pcs9532 - Move i2c work to a workqueque leds: leds-pca9532 - fix memory leak and properly handle errors leds: Fix wrong loop direction on removal in leds-ams-delta leds: fix Cobalt Raq LED dependency leds: Fix sparse warning in leds-ams-delta leds: Fixup kdoc comment to match parameter names leds: Make header variable naming consistent leds: eds-pca9532: mark pca9532_event() static leds: ALIX.2 LEDs driver
2009-01-09Merge branch 'for-linus' of git://git.o-hand.com/linux-rpurdie-backlightLinus Torvalds
* 'for-linus' of git://git.o-hand.com/linux-rpurdie-backlight: backlight: Rename the corgi backlight driver to generic backlight: add support for Toppoly TDO35S series to tdo24m lcd driver backlight: Add suspend/resume support to the backlight core bd->props.brightness doesn't reflect the actual backlight level. backlight: Support VGA/QVGA mode switching in tosa_lcd backlight: Catch invalid input in sysfs attributes backlight: Value of ILI9320_RGB_IF2 register should not be hardcoded backlight: crbllcd_bl - Use platform_device_register_simple() backlight: progear_bl - Use platform_device_register_simple() backlight: hp680_bl - Use platform_device_register_simple()
2009-01-09mISDN: Add layer1 prim MPH_INFORMATION_REQMartin Bachem
MPH_INFORMATION provides full D- and B-Channel status overview - new layer1 primitive: MPF_INFORMATON_REQ - layer1 replies with MPH_INFORMATION_IND containing - dch->[state,Flags,nrbchan] - bch[]->[protocol,Flags] - hardware driver should send MPH_INFORMATION_IND on all ph state changes and BChannel state changes to MISDN_ID_ANY Signed-off-by: Martin Bachem <m.bachem@gmx.de> Signed-off-by: Karsten Keil <kkeil@suse.de>
2009-01-09mISDN: Create /sys/class/mISDNMatthias Urlichs
Create /sys/class/mISDN and implement functions to handle device renames. Signed-Off-By: Matthias Urlichs <matthias@urlichs.de> Signed-off-by: Karsten Keil <kkeil@suse.de>
2009-01-09mISDN: Fix deactivation, if peer IP is removed from l1oip instance.Andreas Eversberg
Added GETPEER operation. Socket now checks if device is already busy at a differen mode. Signed-off-by: Andreas Eversberg <andreas@eversberg.eu> Signed-off-by: Karsten Keil <kkeil@suse.de>
2009-01-09mISDN: Add ISDN_P_TE_UP0 / ISDN_P_NT_UP0Martin Bachem
- new layer1 protocols for UP0 bus - helper #defines to test for TE/NT/S0/E1/UP0 Signed-off-by: Martin Bachem <m.bachem@gmx.de> Signed-off-by: Karsten Keil <kkeil@suse.de>
2009-01-09mISDN: Add ISDN sample clock API to mISDN coreAndreas Eversberg
Add ISDN sample clock API to mISDN core (new file clock.c) hfcmulti and mISDNdsp use clock API. Signed-off-by: Andreas Eversberg <andreas@eversberg.eu> Signed-off-by: Karsten Keil <kkeil@suse.de>
2009-01-09mISDN: Add E-Channel logging featuresMartin Bachem
New prim PH_DATA_E_IND. - all E-ch frames are indicated by recv_Echannel(), which pushes E-Channel frames into dch's rqueue - if dchannel is opened with channel nr 0, no E-Channel logging is requested - if dchannel is opened with channel nr 1, E-Channel logging is requested. if layer1 does not support that, -EINVAL in return is appropriate Signed-off-by: Martin Bachem <m.bachem@gmx.de> Signed-off-by: Karsten Keil <kkeil@suse.de>
2009-01-09mISDN: Use struct device name fieldMatthias Urlichs
struct device already has a 'name' member, use it. Signed-off-by: Matthias Urlichs <matthias@urlichs.de> Signed-off-by: Karsten Keil <kkeil@suse.de>
2009-01-09mISDN: Added an ioctl to change the device nameMatthias Urlichs
To get persistent device names with hotplug we need to rename devices sometime. Signed-off-by: Matthias Urlichs <matthias@urlichs.de> Signed-off-by: Karsten Keil <kkeil@suse.de>
2009-01-09mISDN: Add feature via MISDN_CTRL_FILL_EMPTY to fill fifo if emptyAndreas Eversberg
This prevents underrun of fifo when filled and in case of an underrun it prevents subsequent underruns due to jitter. Improve dsp, so buffers are kept filled with a certain delay, so moderate jitter will not cause underrun all the time -> the audio quality is highly improved. tones are not interrupted by gaps anymore, except when CPU is stalling or in high load. Signed-off-by: Andreas Eversberg <andreas@eversberg.eu> Signed-off-by: Karsten Keil <kkeil@suse.de>
2009-01-09Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile: (31 commits) powerpc/oprofile: fix whitespaces in op_model_cell.c powerpc/oprofile: IBM CELL: add SPU event profiling support powerpc/oprofile: fix cell/pr_util.h powerpc/oprofile: IBM CELL: cleanup and restructuring oprofile: make new cpu buffer functions part of the api oprofile: remove #ifdef CONFIG_OPROFILE_IBS in non-ibs code ring_buffer: fix ring_buffer_event_length() oprofile: use new data sample format for ibs oprofile: add op_cpu_buffer_get_data() oprofile: add op_cpu_buffer_add_data() oprofile: rework implementation of cpu buffer events oprofile: modify op_cpu_buffer_read_entry() oprofile: add op_cpu_buffer_write_reserve() oprofile: rename variables in add_ibs_begin() oprofile: rename add_sample() in cpu_buffer.c oprofile: rename variable ibs_allowed to has_ibs in op_model_amd.c oprofile: making add_sample_entry() inline oprofile: remove backtrace code for ibs oprofile: remove unused ibs macro oprofile: remove unused components in struct oprofile_cpu_buffer ...
2009-01-09Merge git://git.infradead.org/mtd-2.6Linus Torvalds
* git://git.infradead.org/mtd-2.6: (67 commits) [MTD] [MAPS] Fix printk format warning in nettel.c [MTD] [NAND] add cmdline parsing (mtdparts=) support to cafe_nand [MTD] CFI: remove major/minor version check for command set 0x0002 [MTD] [NAND] ndfc driver [MTD] [TESTS] Fix some size_t printk format warnings [MTD] LPDDR Makefile and KConfig [MTD] LPDDR extended physmap driver to support LPDDR flash [MTD] LPDDR added new pfow_base parameter [MTD] LPDDR Command set driver [MTD] LPDDR PFOW definition [MTD] LPDDR QINFO records definitions [MTD] LPDDR qinfo probing. [MTD] [NAND] pxa3xx: convert from ns to clock ticks more accurately [MTD] [NAND] pxa3xx: fix non-page-aligned reads [MTD] [NAND] fix nandsim sched.h references [MTD] [NAND] alauda: use USB API functions rather than constants [MTD] struct device - replace bus_id with dev_name(), dev_set_name() [MTD] fix m25p80 64-bit divisions [MTD] fix dataflash 64-bit divisions [MTD] [NAND] Set the fsl elbc ECCM according the settings in bootloader. ... Fixed up trivial debug conflicts in drivers/mtd/devices/{m25p80.c,mtd_dataflash.c}
2009-01-09Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (94 commits) ACPICA: hide private headers ACPICA: create acpica/ directory ACPI: fix build warning ACPI : Use RSDT instead of XSDT by adding boot option of "acpi=rsdt" ACPI: Avoid array address overflow when _CST MWAIT hint bits are set fujitsu-laptop: Simplify SBLL/SBL2 backlight handling fujitsu-laptop: Add BL power, LED control and radio state information ACPICA: delete utcache.c ACPICA: delete acdisasm.h ACPICA: Update version to 20081204. ACPICA: FADT: Update error msgs for consistency ACPICA: FADT: set acpi_gbl_use_default_register_widths to TRUE by default ACPICA: FADT parsing changes and fixes ACPICA: Add ACPI_MUTEX_TYPE configuration option ACPICA: Fixes for various ACPI data tables ACPICA: Restructure includes into public/private ACPI: remove private acpica headers from driver files ACPI: reboot.c: use new acpi_reset interface ACPICA: New: acpi_reset interface - write to reset register ACPICA: Move all public H/W interfaces to new hwxface ...
2009-01-09Merge branch 'next' of ↵Linus Torvalds
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: (22 commits) ioat: fix self test for multi-channel case dmaengine: bump initcall level to arch_initcall dmaengine: advertise all channels on a device to dma_filter_fn dmaengine: use idr for registering dma device numbers dmaengine: add a release for dma class devices and dependent infrastructure ioat: do not perform removal actions at shutdown iop-adma: enable module removal iop-adma: kill debug BUG_ON iop-adma: let devm do its job, don't duplicate free dmaengine: kill enum dma_state_client dmaengine: remove 'bigref' infrastructure dmaengine: kill struct dma_client and supporting infrastructure dmaengine: replace dma_async_client_register with dmaengine_get atmel-mci: convert to dma_request_channel and down-level dma_slave dmatest: convert to dma_request_channel dmaengine: introduce dma_request_channel and private channels net_dma: convert to dma_find_channel dmaengine: provide a common 'issue_pending_all' implementation dmaengine: centralize channel allocation, introduce dma_find_channel dmaengine: up-level reference counting to the module level ...
2009-01-09[MTD] CFI: remove major/minor version check for command set 0x0002Wolfgang Grandegger
The NOR Flash memory K8P2815UQB from Samsung uses the major version number '0'. Add a quirk to cope with it. Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-01-09Merge branch 'simplify_PRT' into releaseLen Brown
Conflicts: drivers/acpi/pci_irq.c Note that this merge disables e1d3a90846b40ad3160bf4b648d36c6badad39ac pci, acpi: reroute PCI interrupt to legacy boot interrupt equivalent Signed-off-by: Len Brown <len.brown@intel.com>
2009-01-09Merge branch 'linus' into releaseLen Brown
2009-01-09Merge branch 'suspend' into releaseLen Brown
2009-01-09Merge branch 'misc' into releaseLen Brown
Conflicts: include/acpi/acpixf.h Signed-off-by: Len Brown <len.brown@intel.com>
2009-01-09ACPICA: hide private headersLen Brown
Signed-off-by: Len Brown <len.brown@intel.com>
2009-01-09ACPI : Use RSDT instead of XSDT by adding boot option of "acpi=rsdt"Zhao Yakui
On some boxes there exist both RSDT and XSDT table. But unfortunately sometimes there exists the following error when XSDT table is used: a. 32/64X address mismatch b. The 32/64X FACS address mismatch In such case the boot option of "acpi=rsdt" is provided so that RSDT is tried instead of XSDT table when the system can't work well. http://bugzilla.kernel.org/show_bug.cgi?id=8246 Signed-off-by: Zhao Yakui <yakui.zhao@intel.com> cc:Thomas Renninger <trenn@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
2009-01-08ACPICA: delete acdisasm.hLen Brown
it is referenced only #ifdef ACPI_DISASSEMBLER, which is never set by the kernel. Signed-off-by: Len Brown <len.brown@intel.com>
2009-01-08Merge branch 'for_linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (57 commits) jbd2: Fix oops in jbd2_journal_init_inode() on corrupted fs ext4: Remove "extents" mount option block: Add Kconfig help which notes that ext4 needs CONFIG_LBD ext4: Make printk's consistently prefixed with "EXT4-fs: " ext4: Add sanity checks for the superblock before mounting the filesystem ext4: Add mount option to set kjournald's I/O priority jbd2: Submit writes to the journal using WRITE_SYNC jbd2: Add pid and journal device name to the "kjournald2 starting" message ext4: Add markers for better debuggability ext4: Remove code to create the journal inode ext4: provide function to release metadata pages under memory pressure ext3: provide function to release metadata pages under memory pressure add releasepage hooks to block devices which can be used by file systems ext4: Fix s_dirty_blocks_counter if block allocation failed with nodelalloc ext4: Init the complete page while building buddy cache ext4: Don't allow new groups to be added during block allocation ext4: mark the blocks/inode bitmap beyond end of group as used ext4: Use new buffer_head flag to check uninit group bitmaps initialization ext4: Fix the race between read_inode_bitmap() and ext4_new_inode() ext4: code cleanup ...
2009-01-08Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (45 commits) [SCSI] qla2xxx: Update version number to 8.03.00-k1. [SCSI] qla2xxx: Add ISP81XX support. [SCSI] qla2xxx: Use proper request/response queues with MQ instantiations. [SCSI] qla2xxx: Correct MQ-chain information retrieval during a firmware dump. [SCSI] qla2xxx: Collapse EFT/FCE copy procedures during a firmware dump. [SCSI] qla2xxx: Don't pollute kernel logs with ZIO/RIO status messages. [SCSI] qla2xxx: Don't fallback to interrupt-polling during re-initialization with MSI-X enabled. [SCSI] qla2xxx: Remove support for reading/writing HW-event-log. [SCSI] cxgb3i: add missing include [SCSI] scsi_lib: fix DID_RESET status problems [SCSI] fc transport: restore missing dev_loss_tmo callback to LLDD [SCSI] aha152x_cs: Fix regression that keeps driver from using shared interrupts [SCSI] sd: Correctly handle 6-byte commands with DIX [SCSI] sd: DIF: Fix tagging on platforms with signed char [SCSI] sd: DIF: Show app tag on error [SCSI] Fix error handling for DIF/DIX [SCSI] scsi_lib: don't decrement busy counters when inserting commands [SCSI] libsas: fix test for negative unsigned and typos [SCSI] a2091, gvp11: kill warn_unused_result warnings [SCSI] fusion: Move a dereference below a NULL test ... Fixed up trivial conflict due to moving the async part of sd_probe around in the async probes vs using dev_set_name() in naming.
2009-01-08Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6: regulator: fix kernel-doc warnings regulator: catch some registration errors regulator: Add basic DocBook manual regulator: Fix some kerneldoc rendering issues regulator: Add missing kerneldoc regulator: Clean up kerneldoc warnings regulator: Remove extraneous kerneldoc annotations regulator: init/link earlier regulator: move set_machine_constraints after regulator device initialization regulator: da903x: make da903x_is_enabled return 0 or 1 regulator: da903x: add '\n' to error messages regulator: sysfs attribute reduction (v2) regulator: code shrink (v2) regulator: improved mode error checks regulator: enable/disable refcounting regulator: struct device - replace bus_id with dev_name(), dev_set_name()
2009-01-08Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (84 commits) wimax: fix kernel-doc for debufs_dentry member of struct wimax_dev net: convert pegasus driver to net_device_ops bnx2x: Prevent eeprom set when driver is down net: switch kaweth driver to netdevops pcnet32: round off carrier watch timer i2400m/usb: wrap USB power saving in #ifdef CONFIG_PM wimax: testing for rfkill support should also test for CONFIG_RFKILL_MODULE wimax: fix kconfig interactions with rfkill and input layers wimax: fix '#ifndef CONFIG_BUG' layout to avoid warning r6040: bump release number to 0.20 r6040: warn about MAC address being unset r6040: check PHY status when bringing interface up r6040: make printks consistent with DRV_NAME gianfar: Fixup use of BUS_ID_SIZE mlx4_en: Returning real Max in get_ringparam mlx4_en: Consider inline packets on completion netdev: bfin_mac: enable bfin_mac net dev driver for BF51x qeth: convert to net_device_ops vlan: add neigh_setup dm9601: warn on invalid mac address ...
2009-01-08Merge branch 'for-linus' of git://neil.brown.name/mdLinus Torvalds
* 'for-linus' of git://neil.brown.name/md: md: don't retry recovery of raid1 that fails due to error on source drive. md: Allow md devices to be created by name. md: make devices disappear when they are no longer needed. md: centralise all freeing of an 'mddev' in 'md_free' md: move allocation of ->queue from mddev_find to md_probe md: need another print_sb for mdp_superblock_1 md: use list_for_each_entry macro directly md: raid0: make hash_spacing and preshift sector-based. md: raid0: Represent the size of strip zones in sectors. md: raid0 create_strip_zones(): Add KERN_INFO/KERN_ERR to printk's. md: raid0 create_strip_zones(): Make two local variables sector-based. md: raid0: Represent zone->zone_offset in sectors. md: raid0: Represent device offset in sectors. md: raid0_make_request(): Replace local variable block by sector. md: raid0_make_request(): Remove local variable chunk_size. md: raid0_make_request(): Replace chunksize_bits by chunksect_bits. md: use sysfs_notify_dirent to notify changes to md/sync_action. md: fix bitmap-on-external-file bug.
2009-01-08libata: Add 32bit PIO supportAlan Cox
This matters for some controllers and in one or two cases almost doubles PIO performance. Add a bmdma32 operations set we can inherit and activate it for some controllers Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2009-01-09md: don't retry recovery of raid1 that fails due to error on source drive.NeilBrown
If a raid1 has only one working drive and it has a sector which gives an error on read, then an attempt to recover onto a spare will fail, but as the single remaining drive is not removed from the array, the recovery will be immediately re-attempted, resulting in an infinite recovery loop. So detect this situation and don't retry recovery once an error on the lone remaining drive is detected. Allow recovery to be retried once every time a spare is added in case the problem wasn't actually a media error. Signed-off-by: NeilBrown <neilb@suse.de>
2009-01-09md: Allow md devices to be created by name.NeilBrown
Using sequential numbers to identify md devices is somewhat artificial. Using names can be a lot more user-friendly. Also, creating md devices by opening the device special file is a bit awkward. So this patch provides a new option for creating and naming devices. Writing a name such as "md_home" to /sys/modules/md_mod/parameters/new_array will cause an array with that name to be created. It will appear in /sys/block/ /proc/partitions and /proc/mdstat as 'md_home'. It will have an arbitrary minor number allocated. md devices that a created by an open are destroyed on the last close when the device is inactive. For named md devices, they will not be destroyed until the array is explicitly stopped, either with the STOP_ARRAY ioctl or by writing 'clear' to /sys/block/md_XXXX/md/array_state. The name of the array must start 'md_' to avoid conflict with other devices. Signed-off-by: NeilBrown <neilb@suse.de>
2009-01-09md: make devices disappear when they are no longer needed.NeilBrown
Currently md devices, once created, never disappear until the module is unloaded. This is essentially because the gendisk holds a reference to the mddev, and the mddev holds a reference to the gendisk, this a circular reference. If we drop the reference from mddev to gendisk, then we need to ensure that the mddev is destroyed when the gendisk is destroyed. However it is not possible to hook into the gendisk destruction process to enable this. So we drop the reference from the gendisk to the mddev and destroy the gendisk when the mddev gets destroyed. However this has a complication. Between the call __blkdev_get->get_gendisk->kobj_lookup->md_probe and the call __blkdev_get->md_open there is no obvious way to hold a reference on the mddev any more, so unless something is done, it will disappear and gendisk will be destroyed prematurely. Also, once we decide to destroy the mddev, there will be an unlockable moment before the gendisk is unlinked (blk_unregister_region) during which a new reference to the gendisk can be created. We need to ensure that this reference can not be used. i.e. the ->open must fail. So: 1/ in md_probe we set a flag in the mddev (hold_active) which indicates that the array should be treated as active, even though there are no references, and no appearance of activity. This is cleared by md_release when the device is closed if it is no longer needed. This ensures that the gendisk will survive between md_probe and md_open. 2/ In md_open we check if the mddev we expect to open matches the gendisk that we did open. If there is a mismatch we return -ERESTARTSYS and modify __blkdev_get to retry from the top in that case. In the -ERESTARTSYS sys case we make sure to wait until the old gendisk (that we succeeded in opening) is really gone so we loop at most once. Some udev configurations will always open an md device when it first appears. If we allow an md device that was just created by an open to disappear on an immediate close, then this can race with such udev configurations and result in an infinite loop the device being opened and closed, then re-open due to the 'ADD' even from the first open, and then close and so on. So we make sure an md device, once created by an open, remains active at least until some md 'ioctl' has been made on it. This means that all normal usage of md devices will allow them to disappear promptly when not needed, but the worst that an incorrect usage will do it cause an inactive md device to be left in existence (it can easily be removed). As an array can be stopped by writing to a sysfs attribute echo clear > /sys/block/mdXXX/md/array_state we need to use scheduled work for deleting the gendisk and other kobjects. This allows us to wait for any pending gendisk deletion to complete by simply calling flush_scheduled_work(). Signed-off-by: NeilBrown <neilb@suse.de>
2009-01-09md: need another print_sb for mdp_superblock_1Cheng Renquan
md_print_devices is called in two code path: MD_BUG(...), and md_ioctl with PRINT_RAID_DEBUG. it will dump out all in use md devices information; However, it wrongly processed two types of superblock in one: The header file <linux/raid/md_p.h> has defined two types of superblock, struct mdp_superblock_s (typedefed with mdp_super_t) according to md with metadata 0.90, and struct mdp_superblock_1 according to md with metadata 1.0 and later, These two types of superblock are very different, The md_print_devices code processed them both in mdp_super_t, that would lead to wrong informaton dump like: [ 6742.345877] [ 6742.345887] md: ********************************** [ 6742.345890] md: * <COMPLETE RAID STATE PRINTOUT> * [ 6742.345892] md: ********************************** [ 6742.345896] md1: <ram7><ram6><ram5><ram4> [ 6742.345907] md: rdev ram7, SZ:00065472 F:0 S:1 DN:3 [ 6742.345909] md: rdev superblock: [ 6742.345914] md: SB: (V:0.90.0) ID:<42ef13c7.598c059a.5f9f1645.801e9ee6> CT:4919856d [ 6742.345918] md: L5 S00065472 ND:4 RD:4 md1 LO:2 CS:65536 [ 6742.345922] md: UT:4919856d ST:1 AD:4 WD:4 FD:0 SD:0 CSUM:b7992907 E:00000001 [ 6742.345924] D 0: DISK<N:0,(1,8),R:0,S:6> [ 6742.345930] D 1: DISK<N:1,(1,10),R:1,S:6> [ 6742.345933] D 2: DISK<N:2,(1,12),R:2,S:6> [ 6742.345937] D 3: DISK<N:3,(1,14),R:3,S:6> [ 6742.345942] md: THIS: DISK<N:3,(1,14),R:3,S:6> ... [ 6742.346058] md0: <ram3><ram2><ram1><ram0> [ 6742.346067] md: rdev ram3, SZ:00065472 F:0 S:1 DN:3 [ 6742.346070] md: rdev superblock: [ 6742.346073] md: SB: (V:1.0.0) ID:<369aad81.00000000.00000000.00000000> CT:9a322a9c [ 6742.346077] md: L-1507699579 S976570180 ND:48 RD:0 md0 LO:65536 CS:196610 [ 6742.346081] md: UT:00000018 ST:0 AD:131048 WD:0 FD:8 SD:0 CSUM:00000000 E:00000000 [ 6742.346084] D 0: DISK<N:-1,(-1,-1),R:-1,S:-1> [ 6742.346089] D 1: DISK<N:-1,(-1,-1),R:-1,S:-1> [ 6742.346092] D 2: DISK<N:-1,(-1,-1),R:-1,S:-1> [ 6742.346096] D 3: DISK<N:-1,(-1,-1),R:-1,S:-1> [ 6742.346102] md: THIS: DISK<N:0,(0,0),R:0,S:0> ... [ 6742.346219] md: ********************************** [ 6742.346221] Here md1 is metadata 0.90.0, and md0 is metadata 1.2 After some more code to distinguish these two types of superblock, in this patch, it will generate dump information like: [ 7906.755790] [ 7906.755799] md: ********************************** [ 7906.755802] md: * <COMPLETE RAID STATE PRINTOUT> * [ 7906.755804] md: ********************************** [ 7906.755808] md1: <ram7><ram6><ram5><ram4> [ 7906.755819] md: rdev ram7, SZ:00065472 F:0 S:1 DN:3 [ 7906.755821] md: rdev superblock (MJ:0): [ 7906.755826] md: SB: (V:0.90.0) ID:<3fca7a0d.a612bfed.5f9f1645.801e9ee6> CT:491989f3 [ 7906.755830] md: L5 S00065472 ND:4 RD:4 md1 LO:2 CS:65536 [ 7906.755834] md: UT:491989f3 ST:1 AD:4 WD:4 FD:0 SD:0 CSUM:00fb52ad E:00000001 [ 7906.755836] D 0: DISK<N:0,(1,8),R:0,S:6> [ 7906.755842] D 1: DISK<N:1,(1,10),R:1,S:6> [ 7906.755845] D 2: DISK<N:2,(1,12),R:2,S:6> [ 7906.755849] D 3: DISK<N:3,(1,14),R:3,S:6> [ 7906.755855] md: THIS: DISK<N:3,(1,14),R:3,S:6> ... [ 7906.755972] md0: <ram3><ram2><ram1><ram0> [ 7906.755981] md: rdev ram3, SZ:00065472 F:0 S:1 DN:3 [ 7906.755984] md: rdev superblock (MJ:1): [ 7906.755989] md: SB: (V:1) (F:0) Array-ID:<5fbcf158:55aa:5fbe:9a79:1e939880dcbd> [ 7906.755990] md: Name: "DG5:0" CT:1226410480 [ 7906.755998] md: L5 SZ130944 RD:4 LO:2 CS:128 DO:24 DS:131048 SO:8 RO:0 [ 7906.755999] md: Dev:00000003 UUID: 9194d744:87f7:a448:85f2:7497b84ce30a [ 7906.756001] md: (F:0) UT:1226410480 Events:0 ResyncOffset:-1 CSUM:0dbcd829 [ 7906.756003] md: (MaxDev:384) ... [ 7906.756113] md: ********************************** [ 7906.756116] this md0 (metadata 1.2) information dumping is exactly according to struct mdp_superblock_1. Signed-off-by: Cheng Renquan <crquan@gmail.com> Cc: Neil Brown <neilb@suse.de> Cc: Dan Williams <dan.j.williams@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: NeilBrown <neilb@suse.de>
2009-01-09md: use list_for_each_entry macro directlyCheng Renquan
The rdev_for_each macro defined in <linux/raid/md_k.h> is identical to list_for_each_entry_safe, from <linux/list.h>, it should be defined to use list_for_each_entry_safe, instead of reinventing the wheel. But some calls to each_entry_safe don't really need a safe version, just a direct list_for_each_entry is enough, this could save a temp variable (tmp) in every function that used rdev_for_each. In this patch, most rdev_for_each loops are replaced by list_for_each_entry, totally save many tmp vars; and only in the other situations that will call list_del to delete an entry, the safe version is used. Signed-off-by: Cheng Renquan <crquan@gmail.com> Signed-off-by: NeilBrown <neilb@suse.de>
2009-01-09md: raid0: make hash_spacing and preshift sector-based.Andre Noll
This patch renames the hash_spacing and preshift members of struct raid0_private_data to spacing and sector_shift respectively and changes the semantics as follows: We always have spacing = 2 * hash_spacing. In case sizeof(sector_t) > sizeof(u32) we also have sector_shift = preshift + 1 while sector_shift = preshift = 0 otherwise. Note that the values of nb_zone and zone are unaffected by these changes because in the sector_div() preceeding the assignement of these two variables both arguments double. Signed-off-by: Andre Noll <maan@systemlinux.org> Signed-off-by: NeilBrown <neilb@suse.de>
2009-01-09md: raid0: Represent the size of strip zones in sectors.Andre Noll
This completes the block -> sector conversion of struct strip_zone. Signed-off-by: Andre Noll <maan@systemlinux.org> Signed-off-by: NeilBrown <neilb@suse.de>
2009-01-09md: raid0: Represent zone->zone_offset in sectors.Andre Noll
For the same reason as in the previous patch, rename it from zone_offset to zone_start. Signed-off-by: Andre Noll <maan@systemlinux.org> Signed-off-by: NeilBrown <neilb@suse.de>