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2012-03-21Merge branch 'next' of ↵Linus Torvalds1-809/+0
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc Pull powerpc merge from Benjamin Herrenschmidt: "Here's the powerpc batch for this merge window. It is going to be a bit more nasty than usual as in touching things outside of arch/powerpc mostly due to the big iSeriesectomy :-) We finally got rid of the bugger (legacy iSeries support) which was a PITA to maintain and that nobody really used anymore. Here are some of the highlights: - Legacy iSeries is gone. Thanks Stephen ! There's still some bits and pieces remaining if you do a grep -ir series arch/powerpc but they are harmless and will be removed in the next few weeks hopefully. - The 'fadump' functionality (Firmware Assisted Dump) replaces the previous (equivalent) "pHyp assisted dump"... it's a rewrite of a mechanism to get the hypervisor to do crash dumps on pSeries, the new implementation hopefully being much more reliable. Thanks Mahesh Salgaonkar. - The "EEH" code (pSeries PCI error handling & recovery) got a big spring cleaning, motivated by the need to be able to implement a new backend for it on top of some new different type of firwmare. The work isn't complete yet, but a good chunk of the cleanups is there. Note that this adds a field to struct device_node which is not very nice and which Grant objects to. I will have a patch soon that moves that to a powerpc private data structure (hopefully before rc1) and we'll improve things further later on (hopefully getting rid of the need for that pointer completely). Thanks Gavin Shan. - I dug into our exception & interrupt handling code to improve the way we do lazy interrupt handling (and make it work properly with "edge" triggered interrupt sources), and while at it found & fixed a wagon of issues in those areas, including adding support for page fault retry & fatal signals on page faults. - Your usual random batch of small fixes & updates, including a bunch of new embedded boards, both Freescale and APM based ones, etc..." I fixed up some conflicts with the generalized irq-domain changes from Grant Likely, hopefully correctly. * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (141 commits) powerpc/ps3: Do not adjust the wrapper load address powerpc: Remove the rest of the legacy iSeries include files powerpc: Remove the remaining CONFIG_PPC_ISERIES pieces init: Remove CONFIG_PPC_ISERIES powerpc: Remove FW_FEATURE ISERIES from arch code tty/hvc_vio: FW_FEATURE_ISERIES is no longer selectable powerpc/spufs: Fix double unlocks powerpc/5200: convert mpc5200 to use of_platform_populate() powerpc/mpc5200: add options to mpc5200_defconfig powerpc/mpc52xx: add a4m072 board support powerpc/mpc5200: update mpc5200_defconfig to fit for charon board Documentation/powerpc/mpc52xx.txt: Checkpatch cleanup powerpc/44x: Add additional device support for APM821xx SoC and Bluestone board powerpc/44x: Add support PCI-E for APM821xx SoC and Bluestone board MAINTAINERS: Update PowerPC 4xx tree powerpc/44x: The bug fixed support for APM821xx SoC and Bluestone board powerpc: document the FSL MPIC message register binding powerpc: add support for MPIC message register API powerpc/fsl: Added aliased MSIIR register address to MSI node in dts powerpc/85xx: mpc8548cds - add 36-bit dts ...
2012-03-21Merge branch 'kmap_atomic' of git://github.com/congwang/linuxLinus Torvalds5-49/+49
Pull kmap_atomic cleanup from Cong Wang. It's been in -next for a long time, and it gets rid of the (no longer used) second argument to k[un]map_atomic(). Fix up a few trivial conflicts in various drivers, and do an "evil merge" to catch some new uses that have come in since Cong's tree. * 'kmap_atomic' of git://github.com/congwang/linux: (59 commits) feature-removal-schedule.txt: schedule the deprecated form of kmap_atomic() for removal highmem: kill all __kmap_atomic() [swarren@nvidia.com: highmem: Fix ARM build break due to __kmap_atomic rename] drbd: remove the second argument of k[un]map_atomic() zcache: remove the second argument of k[un]map_atomic() gma500: remove the second argument of k[un]map_atomic() dm: remove the second argument of k[un]map_atomic() tomoyo: remove the second argument of k[un]map_atomic() sunrpc: remove the second argument of k[un]map_atomic() rds: remove the second argument of k[un]map_atomic() net: remove the second argument of k[un]map_atomic() mm: remove the second argument of k[un]map_atomic() lib: remove the second argument of k[un]map_atomic() power: remove the second argument of k[un]map_atomic() kdb: remove the second argument of k[un]map_atomic() udf: remove the second argument of k[un]map_atomic() ubifs: remove the second argument of k[un]map_atomic() squashfs: remove the second argument of k[un]map_atomic() reiserfs: remove the second argument of k[un]map_atomic() ocfs2: remove the second argument of k[un]map_atomic() ntfs: remove the second argument of k[un]map_atomic() ...
2012-03-20Merge branch 'for-linus' of ↵Linus Torvalds1-1/+0
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial Pull trivial tree from Jiri Kosina: "It's indeed trivial -- mostly documentation updates and a bunch of typo fixes from Masanari. There are also several linux/version.h include removals from Jesper." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (101 commits) kcore: fix spelling in read_kcore() comment constify struct pci_dev * in obvious cases Revert "char: Fix typo in viotape.c" init: fix wording error in mm_init comment usb: gadget: Kconfig: fix typo for 'different' Revert "power, max8998: Include linux/module.h just once in drivers/power/max8998_charger.c" writeback: fix fn name in writeback_inodes_sb_nr_if_idle() comment header writeback: fix typo in the writeback_control comment Documentation: Fix multiple typo in Documentation tpm_tis: fix tis_lock with respect to RCU Revert "media: Fix typo in mixer_drv.c and hdmi_drv.c" Doc: Update numastat.txt qla4xxx: Add missing spaces to error messages compiler.h: Fix typo security: struct security_operations kerneldoc fix Documentation: broken URL in libata.tmpl Documentation: broken URL in filesystems.tmpl mtd: simplify return logic in do_map_probe() mm: fix comment typo of truncate_inode_pages_range power: bq27x00: Fix typos in comment ...
2012-03-20Merge tag 'usb-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usbLinus Torvalds2-38/+3
Pull USB merge for 3.4-rc1 from Greg KH: "Here's the big USB merge for the 3.4-rc1 merge window. Lots of gadget driver reworks here, driver updates, xhci changes, some new drivers added, usb-serial core reworking to fix some bugs, and other various minor things. There are some patches touching arch code, but they have all been acked by the various arch maintainers." * tag 'usb-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (302 commits) net: qmi_wwan: add support for ZTE MF820D USB: option: add ZTE MF820D usb: gadget: f_fs: Remove lock is held before freeing checks USB: option: make interface blacklist work again usb/ub: deprecate & schedule for removal the "Low Performance USB Block" driver USB: ohci-pxa27x: add clk_prepare/clk_unprepare calls USB: use generic platform driver on ath79 USB: EHCI: Add a generic platform device driver USB: OHCI: Add a generic platform device driver USB: ftdi_sio: new PID: LUMEL PD12 USB: ftdi_sio: add support for FT-X series devices USB: serial: mos7840: Fixed MCS7820 device attach problem usb: Don't make USB_ARCH_HAS_{XHCI,OHCI,EHCI} depend on USB_SUPPORT. usb gadget: fix a section mismatch when compiling g_ffs with CONFIG_USB_FUNCTIONFS_ETH USB: ohci-nxp: Remove i2c_write(), use smbus USB: ohci-nxp: Support for LPC32xx USB: ohci-nxp: Rename symbols from pnx4008 to nxp USB: OHCI-HCD: Rename ohci-pnx4008 to ohci-nxp usb: gadget: Kconfig: fix typo for 'different' usb: dwc3: pci: fix another failure path in dwc3_pci_probe() ...
2012-03-20drbd: remove the second argument of k[un]map_atomic()Cong Wang1-7/+7
Signed-off-by: Cong Wang <amwang@redhat.com>
2012-03-20block: remove the second argument of k[un]map_atomic()Cong Wang5-42/+42
Signed-off-by: Cong Wang <amwang@redhat.com>
2012-03-16usb/ub: deprecate & schedule for removal the "Low Performance USB Block" driverSebastian Andrzej Siewior2-1/+3
Deprecate this driver. All devices which can be handled by this driver can also be handled by the usb-storage driver. Acked-By: Pete Zaitcev <zaitcev@redhat.com> Cc: Jens Axboe <jaxboe@fusionio.com> Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-16powerpc: Remove some of the legacy iSeries specific device driversStephen Rothwell1-809/+0
These drivers are specific to the PowerPC legacy iSeries platform and their Kconfig is specified in arch/powerpc. Legacy iSeries is being removed, so these drivers can no longer be selected. Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-03-14Merge branch 'for-linus' of git://git.kernel.dk/linux-blockLinus Torvalds2-9/+11
Pull block fixes from Jens Axboe: "Been sitting on this for a while, but lets get this out the door. This fixes various important bugs for 3.3 final, along with a few more trivial ones. Please pull!" * 'for-linus' of git://git.kernel.dk/linux-block: block: fix ioc leak in put_io_context block, sx8: fix pointer math issue getting fw version Block: use a freezable workqueue for disk-event polling drivers/block/DAC960: fix -Wuninitialized warning drivers/block/DAC960: fix DAC960_V2_IOCTL_Opcode_T -Wenum-compare warning block: fix __blkdev_get and add_disk race condition block: Fix setting bio flags in drivers (sd_dif/floppy) block: Fix NULL pointer dereference in sd_revalidate_disk block: exit_io_context() should call elevator_exit_icq_fn() block: simplify ioc_release_fn() block: replace icq->changed with icq->flags
2012-03-12Merge 3.3-rc7 into usb-nextGreg Kroah-Hartman1-37/+0
This resolves the conflict with drivers/usb/host/ehci-fsl.h that happened with changes in Linus's and this branch at the same time. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-05floppy/scsi: fix setting of BIO flagsMuthu Kumar1-1/+1
Fix setting bio flags in drivers (sd_dif/floppy). Signed-off-by: Muthukumar R <muthur@gmail.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-03block, sx8: fix pointer math issue getting fw versionDan Carpenter1-1/+1
"mem" is type u8. We need parenthesis here or it screws up the pointer math probably leading to an oops. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Cc: stable@kernel.org Acked-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2012-03-02drivers/block/DAC960: fix -Wuninitialized warningDanny Kukawka1-1/+2
Set CommandMailbox with memset before use it. Fix for: drivers/block/DAC960.c: In function ‘DAC960_V1_EnableMemoryMailboxInterface’: arch/x86/include/asm/io.h:61:1: warning: ‘CommandMailbox.Bytes[12]’ may be used uninitialized in this function [-Wuninitialized] drivers/block/DAC960.c:1175:30: note: ‘CommandMailbox.Bytes[12]’ was declared here Signed-off-by: Danny Kukawka <danny.kukawka@bisect.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2012-03-02drivers/block/DAC960: fix DAC960_V2_IOCTL_Opcode_T -Wenum-compare warningDanny Kukawka1-7/+8
Fixed compiler warning: comparison between ‘DAC960_V2_IOCTL_Opcode_T’ and ‘enum <anonymous>’ Renamed enum, added a new enum for SCSI_10.CommandOpcode in DAC960_V2_ProcessCompletedCommand(). Signed-off-by: Danny Kukawka <danny.kukawka@bisect.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2012-03-02block: Fix setting bio flags in drivers (sd_dif/floppy)Muthukumar R1-1/+1
Fix setting bio flags in drivers (sd_dif/floppy). Signed-off-by: Muthukumar R <muthur@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2012-02-28usb/storage: a couple defines from drivers/usb/storage/transport.h to ↵Sebastian Andrzej Siewior1-37/+0
include/linux/usb/storage.h This moves the BOT data structures for CBW and CSW from drivers internal header file to global include able file in include/. The storage gadget is using the same name for CSW but a different for CBW so I fix it up properly. The same goes for the ub driver and keucr driver in staging. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-21asm-generic: architecture independent readq/writeq for 32bit environmentHitoshi Mitake1-0/+2
This provides unified readq()/writeq() helper functions for 32-bit drivers. For some cases, readq/writeq without atomicity is harmful, and order of io access has to be specified explicitly. So in this patch, new two header files which contain non-atomic readq/writeq are added. - <asm-generic/io-64-nonatomic-lo-hi.h> provides non-atomic readq/ writeq with the order of lower address -> higher address - <asm-generic/io-64-nonatomic-hi-lo.h> provides non-atomic readq/ writeq with reversed order This allows us to remove some readq()s that were added drivers when the default non-atomic ones were removed in commit dbee8a0affd5 ("x86: remove 32-bit versions of readq()/writeq()") The drivers which need readq/writeq but can do with the non-atomic ones must add the line: #include <asm-generic/io-64-nonatomic-lo-hi.h> /* or hi-lo.h */ But this will be nop in 64-bit environments, and no other #ifdefs are required. So I believe that this patch can solve the problem of 1. driver-specific readq/writeq 2. atomicity and order of io access This patch is tested with building allyesconfig and allmodconfig as ARCH=x86 and ARCH=i386 on top of tip/master. Cc: Kashyap Desai <Kashyap.Desai@lsi.com> Cc: Len Brown <lenb@kernel.org> Cc: Ravi Anand <ravi.anand@qlogic.com> Cc: Vikas Chaudhary <vikas.chaudhary@qlogic.com> Cc: Matthew Garrett <mjg@redhat.com> Cc: Jason Uhlenkott <juhlenko@akamai.com> Cc: James Bottomley <James.Bottomley@parallels.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Roland Dreier <roland@purestorage.com> Cc: James Bottomley <jbottomley@parallels.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Matthew Wilcox <matthew.r.wilcox@intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Hitoshi Mitake <h.mitake@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-02-21NVM Express: Remove unneeded include of linux/version.h from nvme.cJesper Juhl1-1/+0
There's no need for drivers/block/nvme.c to include linux/version.h, so remove the include. Signed-off-by: Jesper Juhl <jj@chaosbits.net> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-02-11Merge branch 'for-linus' of git://git.kernel.dk/linux-blockLinus Torvalds4-23/+34
Says Jens: "Time to push off some of the pending items. I really wanted to wait until we had the regression nailed, but alas it's not quite there yet. But I'm very confident that it's "just" a missing expire on exit, so fix from Tejun should be fairly trivial. I'm headed out for a week on the slopes. - Killing the barrier part of mtip32xx. It doesn't really support barriers, and it doesn't need them (writes are fully ordered). - A few fixes from Dan Carpenter, preventing overflows of integer multiplication. - A fixup for loop, fixing a previous commit that didn't quite solve the partial read problem from Dave Young. - A bio integer overflow fix from Kent Overstreet. - Improvement/fix of the door "keep locked" part of the cdrom shared code from Paolo Benzini. - A few cfq fixes from Shaohua Li. - A fix for bsg sysfs warning when removing a file it did not create from Stanislaw Gruszka. - Two fixes for floppy from Vivek, preventing a crash. - A few block core fixes from Tejun. One killing the over-optimized ioc exit path, cleaning that up nicely. Two others fixing an oops on elevator switch, due to calling into the scheduler merge check code without holding the queue lock." * 'for-linus' of git://git.kernel.dk/linux-block: block: fix lockdep warning on io_context release put_io_context() relay: prevent integer overflow in relay_open() loop: zero fill bio instead of return -EIO for partial read bio: don't overflow in bio_get_nr_vecs() floppy: Fix a crash during rmmod floppy: Cleanup disk->queue before caling put_disk() if add_disk() was never called cdrom: move shared static to cdrom_device_info bsg: fix sysfs link remove warning block: don't call elevator callbacks for plug merges block: separate out blk_rq_merge_ok() and blk_try_merge() from elevator functions mtip32xx: removed the irrelevant argument of mtip_hw_submit_io() and the unused member of struct driver_data block: strip out locking optimization in put_io_context() cdrom: use copy_to_user() without the underscores block: fix ioc locking warning block: fix NULL icq_cache reference block,cfq: change code order
2012-02-08loop: zero fill bio instead of return -EIO for partial readDave Young1-11/+13
commit 8268f5a741 ("deny partial write for loop dev fd") tried to fix the loop device partial read information leak problem. But it changed the semantics of read behavior. When we read beyond the end of the device we should get 0 bytes, which is normal behavior, we should not just return -EIO Instead of returning -EIO, zero out the bio to avoid information leak in case of partail read. Signed-off-by: Dave Young <dyoung@redhat.com> Reviewed-by: Jeff Moyer <jmoyer@redhat.com> Tested-by: Jeff Moyer <jmoyer@redhat.com> Cc: Dmitry Monakhov <dmonakhov@sw.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2012-02-08floppy: Fix a crash during rmmodVivek Goyal1-0/+9
floppy driver does not call add_disk() on all the drives hence we don't take gendisk reference on request queue for these drives. Don't call put_disk() with disk->queue set, otherwise we try to put the reference we never took. Reported-and-tested-by: Dirk Gouders <gouders@et.bocholt.fh-gelsenkirchen.de> Signed-off-by: Vivek Goyal<vgoyal@redhat.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2012-02-08floppy: Cleanup disk->queue before caling put_disk() if add_disk() was never ↵Vivek Goyal1-1/+7
called add_disk() takes gendisk reference on request queue. If driver failed during initialization and never called add_disk() then that extra reference is not taken. That reference is put in put_disk(). floppy driver allocates the disk, allocates queue, sets disk->queue and then relizes that floppy controller is not present. It tries to tear down everything and tries to put a reference down in put_disk() which was never taken. In such error cases cleanup disk->queue before calling put_disk() so that we never try to put down a reference which was never taken in first place. Reported-and-tested-by: Suresh Jayaraman <sjayaraman@suse.com> Tested-by: Dirk Gouders <gouders@et.bocholt.fh-gelsenkirchen.de> Signed-off-by: Vivek Goyal <vgoyal@redhat.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2012-02-07mtip32xx: removed the irrelevant argument of mtip_hw_submit_io() and the ↵Asai Thambi S P2-11/+5
unused member of struct driver_data Removed the following: * irrelevant argument 'barrier' of mtip_hw_submit_io() * unused member 'eh_active' of struct driver_data Signed-off-by: Asai Thambi S P <asamymuthupa@micron.com> Signed-off-by: Sam Bradshaw <sbradshaw@micron.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2012-02-02Merge branch 'for-linus' of ↵Linus Torvalds1-2/+5
git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: rbd: fix safety of rbd_put_client() rbd: fix a memory leak in rbd_get_client() ceph: create a new session lock to avoid lock inversion ceph: fix length validation in parse_reply_info() ceph: initialize client debugfs outside of monc->mutex ceph: change "ceph.layout" xattr to be "ceph.file.layout"
2012-02-02rbd: fix safety of rbd_put_client()Alex Elder1-2/+4
The rbd_client structure uses a kref to arrange for cleaning up and freeing an instance when its last reference is dropped. The cleanup routine is rbd_client_release(), and one of the things it does is delete the rbd_client from rbd_client_list. It acquires node_lock to do so, but the way it is done is still not safe. The problem is that when attempting to reuse an existing rbd_client, the structure found might already be in the process of getting destroyed and cleaned up. Here's the scenario, with "CLIENT" representing an existing rbd_client that's involved in the race: Thread on CPU A | Thread on CPU B --------------- | --------------- rbd_put_client(CLIENT) | rbd_get_client() kref_put() | (acquires node_lock) kref->refcount becomes 0 | __rbd_client_find() returns CLIENT calls rbd_client_release() | kref_get(&CLIENT->kref); | (releases node_lock) (acquires node_lock) | deletes CLIENT from list | ...and starts using CLIENT... (releases node_lock) | and frees CLIENT | <-- but CLIENT gets freed here Fix this by having rbd_put_client() acquire node_lock. The result could still be improved, but at least it avoids this problem. Signed-off-by: Alex Elder <elder@dreamhost.com> Signed-off-by: Sage Weil <sage@newdream.net>
2012-02-02rbd: fix a memory leak in rbd_get_client()Alex Elder1-0/+1
If an existing rbd client is found to be suitable for use in rbd_get_client(), the rbd_options structure is not being freed as it should. Fix that. Signed-off-by: Alex Elder <elder@dreamhost.com> Signed-off-by: Sage Weil <sage@newdream.net>
2012-01-18nvme: fix merge error due to change of 'make_request_fn' fn typeLinus Torvalds1-7/+1
The type of 'make_request_fn' changed in 5a7bbad27a4 ("block: remove support for bio remapping from ->make_request"), but the merge of the nvme driver didn't take that into account, and as a result the driver would compile with a warning: drivers/block/nvme.c: In function 'nvme_alloc_ns': drivers/block/nvme.c:1336:2: warning: passing argument 2 of 'blk_queue_make_request' from incompatible pointer type [enabled by default] include/linux/blkdev.h:830:13: note: expected 'void (*)(struct request_queue *, struct bio *)' but argument is of type 'int (*)(struct request_queue *, struct bio *)' It's benign, but the warning is annoying. Reported-by: Stephen Rothwell <sfr@canb.auug.org> Cc: Matthew Wilcox <matthew.r.wilcox@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-01-18Merge git://git.infradead.org/users/willy/linux-nvmeLinus Torvalds3-0/+1757
* git://git.infradead.org/users/willy/linux-nvme: (105 commits) NVMe: Set number of queues correctly NVMe: Version 0.8 NVMe: Set queue flags correctly NVMe: Simplify nvme_unmap_user_pages NVMe: Mark the end of the sg list NVMe: Fix DMA mapping for admin commands NVMe: Rename IO_TIMEOUT to NVME_IO_TIMEOUT NVMe: Merge the nvme_bio and nvme_prp data structures NVMe: Change nvme_completion_fn to take a dev NVMe: Change get_nvmeq to take a dev instead of a namespace NVMe: Simplify completion handling NVMe: Update Identify Controller data structure NVMe: Implement doorbell stride capability NVMe: Version 0.7 NVMe: Don't probe namespace 0 Fix calculation of number of pages in a PRP List NVMe: Create nvme_identify and nvme_get_features functions NVMe: Fix memory leak in nvme_dev_add() NVMe: Fix calls to dma_unmap_sg NVMe: Correct sg list setup in nvme_map_user_pages ...
2012-01-15Merge branch 'for-3.3/drivers' of git://git.kernel.dk/linux-blockLinus Torvalds10-105/+4228
* 'for-3.3/drivers' of git://git.kernel.dk/linux-block: mtip32xx: do rebuild monitoring asynchronously xen-blkfront: Use kcalloc instead of kzalloc to allocate array mtip32xx: uninitialized variable in mtip_quiesce_io() mtip32xx: updates based on feedback xen-blkback: convert hole punching to discard request on loop devices xen/blkback: Move processing of BLKIF_OP_DISCARD from dispatch_rw_block_io xen/blk[front|back]: Enhance discard support with secure erasing support. xen/blk[front|back]: Squash blkif_request_rw and blkif_request_discard together mtip32xx: update to new ->make_request() API mtip32xx: add module.h include to avoid conflict with moduleh tree mtip32xx: mark a few more items static mtip32xx: ensure that all local functions are static mtip32xx: cleanup compat ioctl handling mtip32xx: fix warnings/errors on 32-bit compiles block: Add driver for Micron RealSSD pcie flash cards
2012-01-15Merge branch 'for-3.3/core' of git://git.kernel.dk/linux-blockLinus Torvalds1-4/+8
* 'for-3.3/core' of git://git.kernel.dk/linux-block: (37 commits) Revert "block: recursive merge requests" block: Stop using macro stubs for the bio data integrity calls blockdev: convert some macros to static inlines fs: remove unneeded plug in mpage_readpages() block: Add BLKROTATIONAL ioctl block: Introduce blk_set_stacking_limits function block: remove WARN_ON_ONCE() in exit_io_context() block: an exiting task should be allowed to create io_context block: ioc_cgroup_changed() needs to be exported block: recursive merge requests block, cfq: fix empty queue crash caused by request merge block, cfq: move icq creation and rq->elv.icq association to block core block, cfq: restructure io_cq creation path for io_context interface cleanup block, cfq: move io_cq exit/release to blk-ioc.c block, cfq: move icq cache management to block core block, cfq: move io_cq lookup to blk-ioc.c block, cfq: move cfqd->icq_list to request_queue and add request->elv.icq block, cfq: reorganize cfq_io_context into generic and cfq specific parts block: remove elevator_queue->ops block: reorder elevator switch sequence ... Fix up conflicts in: - block/blk-cgroup.c Switch from can_attach_task to can_attach - block/cfq-iosched.c conflict with now removed cic index changes (we now use q->id instead)
2012-01-15Merge branch 'for-3.3/mtip32xx' into for-3.3/driversJens Axboe6-0/+4091
2012-01-14block: add and use scsi_blk_cmd_ioctlPaolo Bonzini3-7/+6
Introduce a wrapper around scsi_cmd_ioctl that takes a block device. The function will then be enhanced to detect partition block devices and, in that case, subject the ioctls to whitelisting. Cc: linux-scsi@vger.kernel.org Cc: Jens Axboe <axboe@kernel.dk> Cc: James Bottomley <JBottomley@parallels.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-01-14Merge tag 'for-linus' of git://github.com/rustyrussell/linuxLinus Torvalds9-13/+18
Autogenerated GPG tag for Rusty D1ADB8F1: 15EE 8D6C AB0E 7F0C F999 BFCB D920 0E6C D1AD B8F1 * tag 'for-linus' of git://github.com/rustyrussell/linux: module_param: check that bool parameters really are bool. intelfbdrv.c: bailearly is an int module_param paride/pcd: fix bool verbose module parameter. module_param: make bool parameters really bool (drivers & misc) module_param: make bool parameters really bool (arch) module_param: make bool parameters really bool (core code) kernel/async: remove redundant declaration. printk: fix unnecessary module_param_name. lirc_parallel: fix module parameter description. module_param: avoid bool abuse, add bint for special cases. module_param: check type correctness for module_param_array modpost: use linker section to generate table. modpost: use a table rather than a giant if/else statement. modules: sysfs - export: taint, coresize, initsize kernel/params: replace DEBUGP with pr_debug module: replace DEBUGP with pr_debug module: struct module_ref should contains long fields module: Fix performance regression on modules with large symbol tables module: Add comments describing how the "strmap" logic works Fix up conflicts in scripts/mod/file2alias.c due to the new linker- generated table approach to adding __mod_*_device_table entries. The ARM sa11x0 mcp bus needed to be converted to that too.
2012-01-13Merge branch 'for-linus' of ↵Linus Torvalds1-0/+2
git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: ceph: ensure prealloc_blob is in place when removing xattr rbd: initialize snap_rwsem in rbd_add() ceph: enable/disable dentry complete flags via mount option vfs: export symbol d_find_any_alias() ceph: always initialize the dentry in open_root_dentry() libceph: remove useless return value for osd_client __send_request() ceph: avoid iput() while holding spinlock in ceph_dir_fsync ceph: avoid useless dget/dput in encode_fh ceph: dereference pointer after checking for NULL crush: fix force for non-root TAKE ceph: remove unnecessary d_fsdata conditional checks ceph: Use kmemdup rather than duplicating its implementation Fix up conflicts in fs/ceph/super.c (d_alloc_root() failure handling vs always initialize the dentry in open_root_dentry)
2012-01-13paride/pcd: fix bool verbose module parameter.Rusty Russell1-1/+1
Dan Carpenter points out that it's an int, not a bool: pcd.c:427: if (verbose > 1) pcd.c:433: if (verbose > 1) pcd.c:437: if (verbose < 2) pcd.c:506:#define DBMSG(msg) ((verbose>1)?(msg):NULL) Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: Dan Carpenter <dan.carpenter@oracle.com>
2012-01-13module_param: make bool parameters really bool (drivers & misc)Rusty Russell8-12/+17
module_param(bool) used to counter-intuitively take an int. In fddd5201 (mid-2009) we allowed bool or int/unsigned int using a messy trick. It's time to remove the int/unsigned int option. For this version it'll simply give a warning, but it'll break next kernel version. Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2012-01-12rbd: initialize snap_rwsem in rbd_add()Alex Elder1-0/+2
New rbd device structures get initialized in rbd_add(). Many of the fields rely on being initially zero-filled. However we lockdep was noticing that the rw_semaphore embedded in the header field was not getting properly initialized. Fix that. Signed-off-by: Alex Elder <elder@dreamhost.com> Signed-off-by: Sage Weil <sage@newdream.net>
2012-01-12virtio: blk: Add freeze, restore handlers to support S4Amit Shah1-0/+44
Delete the vq and flush any pending requests from the block queue on the freeze callback to prepare for hibernation. Re-create the vq in the restore callback to resume normal function. Signed-off-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2012-01-12virtio: blk: Move vq initialization to separate functionAmit Shah1-5/+14
The probe and PM restore functions will share this code. Signed-off-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2012-01-12virtio_blk: fix config handler raceMichael S. Tsirkin1-1/+21
Fix a theoretical race related to config work handler: a config interrupt might happen after we flush config work but before we reset the device. It will then cause the config work to run during or after reset. Two problems with this: - if this runs after device is gone we will get use after free - access of config while reset is in progress is racy (as layout is changing). As a solution 1. flush after reset when we know there will be no more interrupts 2. add a flag to disable config access before reset Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2012-01-12virtio: rename virtqueue_add_buf_gfp to virtqueue_add_bufRusty Russell1-1/+1
Remove wrapper functions. This makes the allocation type explicit in all callers; I used GPF_KERNEL where it seemed obvious, left it at GFP_ATOMIC otherwise. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Reviewed-by: Christoph Hellwig <hch@lst.de>
2012-01-11NVMe: Set number of queues correctlyMatthew Wilcox1-3/+17
The number of submission & completion queues should be set by calling Set Features, not Get Features. Reported-by: Kwok Kong <Kwok.Kong@idt.com> Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2012-01-10Merge branch 'next' of git://git.monstr.eu/linux-2.6-microblazeLinus Torvalds1-5/+5
* 'next' of git://git.monstr.eu/linux-2.6-microblaze: microblaze: Wire-up new system calls microblaze: Remove NO_IRQ from architecture input: xilinx_ps2: Don't use NO_IRQ block: xsysace: Don't use NO_IRQ microblaze: Trivial asm fix microblaze: Fix debug message in module microblaze: Remove eprintk macro microblaze: Send CR before LF for early console microblaze: Change NO_IRQ to 0 microblaze: Use irq_of_parse_and_map for timer microblaze: intc: Change variable name microblaze: Use of_find_compatible_node for timer and intc microblaze: Add __cmpdi2 microblaze: Synchronize __pa __va macros
2012-01-10NVMe: Version 0.8Matthew Wilcox1-1/+1
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2012-01-10NVMe: Set queue flags correctlyMatthew Wilcox1-2/+4
QUEUE_FLAG_* are flags (other than QUEUE_FLAG_DEFAULT), so they cannot be ORed together. Set the queue flags using queue_flag_set_unlocked(). Reported-by: Donald Wood <donald.e.wood@intel.com> Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2012-01-10NVMe: Simplify nvme_unmap_user_pagesMatthew Wilcox1-10/+9
By using the iod->nents field (the same way other I/O paths do), we can avoid recalculating the number of sg entries at unmap time, and make nvme_unmap_user_pages() easier to call. Also, use the 'write' parameter instead of assuming DMA_FROM_DEVICE. Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2012-01-10NVMe: Mark the end of the sg listMatthew Wilcox1-0/+1
For user I/O and admin commands, we were forgetting to mark the end of the SG list. Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2012-01-10NVMe: Fix DMA mapping for admin commandsMatthew Wilcox1-2/+4
We were always mapping as DMA_FROM_DEVICE then unmapping with DMA_TO_DEVICE which was clearly not correct. Follow the same pattern as nvme_submit_io() and key off the bottom bit of the opcode to determine whether this is a read or a write. Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2012-01-10NVMe: Rename IO_TIMEOUT to NVME_IO_TIMEOUTMatthew Wilcox1-4/+4
IO_TIMEOUT is a little too generic and might be used by other parts of the kernel in the future. Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2012-01-10NVMe: Merge the nvme_bio and nvme_prp data structuresMatthew Wilcox1-115/+124
The new merged data structure is called nvme_iod. This improves performance for mid-sized I/Os (in the 16k range) since we save a memory allocation. It is also a slightly simpler interface to use. Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>