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2014-04-03RDMA/ocrdma: Fix warnings about pointer <-> integer castsRoland Dreier
We should cast pointers to and from unsigned long to turn them into ints. Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-03RDMA/ocrdma: Code clean-upDevesh Sharma
Clean up code. Also modifying GSI QP to error during ocrdma_close is fixed. Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com> Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-03RDMA/ocrdma: Display FW versionSelvin Xavier
Adding a sysfs file for getting the FW version. Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com> Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-03RDMA/ocrdma: Query controller informationSelvin Xavier
Issue mailbox commands to query ocrdma controller information and phy information and print them while adding ocrdma device. Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com> Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-03RDMA/ocrdma: Support non-embedded mailbox commandsSelvin Xavier
Added a routine to issue non-embedded mailbox commands for handling large mailbox request/response data. Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com> Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-03RDMA/ocrdma: Handle CQ overrun errorSelvin Xavier
Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com> Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-03RDMA/ocrdma: Display proper value for max_mwSelvin Xavier
Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com> Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-03RDMA/ocrdma: Use non-zero tag in SRQ postingSelvin Xavier
As part of SRQ receive buffers posting we populate a non-zero tag which will be returned in SRQ receive completions. Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com> Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-03RDMA/ocrdma: Memory leak fix in ocrdma_dereg_mr()Selvin Xavier
Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com> Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-03RDMA/ocrdma: Increment abi version countDevesh Sharma
Increment the ABI version count for driver/library interface. Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com> Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-03RDMA/ocrdma: Update version stringDevesh Sharma
Update the driver vrsion string and node description string Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com> Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-03be2net: Add abi version between be2net and ocrdmaDevesh Sharma
This patch adds abi versioning between be2net and ocrdma driver modules to catch functional incompatibilities in the two drivers. Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com> Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-03RDMA/ocrdma: ABI versioning between ocrdma and be2netDevesh Sharma
While loading RoCE driver be2net driver should check for ABI version to catch functional incompatibilities. Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com> Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-03RDMA/ocrdma: Allow DPP QP creationDevesh Sharma
Allow creating DPP QP even if inline-data is not requested. This is an optimization to lower latency. Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com> Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-03RDMA/ocrdma: Read ASIC_ID register to select asic_genDevesh Sharma
ocrdma driver selects execution path based on sli_family and asic generation number. This introduces code to read the asic gen number from pci register instead of obtaining it from the Emulex NIC driver. Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com> Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-03RDMA/ocrdma: SQ and RQ doorbell offset clean upDevesh Sharma
Introducing new macros to define SQ and RQ doorbell offset. Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com> Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-03RDMA/ocrdma: EQ full catastrophe avoidanceDevesh Sharma
Stale entries in the CQ being destroyed causes hardware to generate EQEs indefinitely for a given CQ. Thus causing uncontrolled execution of irq_handler. This patch fixes this using following sementics: * irq_handler will ring EQ doorbell atleast once and implement budgeting scheme. * cq_destroy will count number of valid entires during destroy and ring cq-db so that hardware does not generate uncontrolled EQE. * cq_destroy will synchronize with last running irq_handler instance. * arm_cq will always defer arming CQ till poll_cq, except for the first arm_cq call. * poll_cq will always ring cq-db with arm=SET if arm_cq was called prior to enter poll_cq. * poll_cq will always ring cq-db with arm=UNSET if arm_cq was not called prior to enter poll_cq. Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com> Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-03fbdev: Make the switch from generic to native driver less alarmingAdam Jackson
Calling this "conflicting" just makes people think there's a problem when there's not. Signed-off-by: Adam Jackson <ajax@redhat.com> Reviewed-by: David Herrmann <dh.herrmann@gmail.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-04-02hwmon: (k10temp) Add support for AMD F16 M30h processorAravind Gopalakrishnan
Adding new PCI ID to support AMD F16 M30h processor (Mullins). While at it, modify Kconfig and Doc files to reflect the support for newer processors Note: PCI ID for this processor will make it into pci_ids.h as part of this patch: http://marc.info/?l=linux-kernel&m=139291362126057&w=2 which should be pulled into 3.15 when merge window opens (It currently sits in 'for-next' branch of bp.git- https://git.kernel.org/cgit/linux/kernel/git/bp/bp.git/log/?h=for-next) Signed-off-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-04-02Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds
Pull networking updates from David Miller: "Here is my initial pull request for the networking subsystem during this merge window: 1) Support for ESN in AH (RFC 4302) from Fan Du. 2) Add full kernel doc for ethtool command structures, from Ben Hutchings. 3) Add BCM7xxx PHY driver, from Florian Fainelli. 4) Export computed TCP rate information in netlink socket dumps, from Eric Dumazet. 5) Allow IPSEC SA to be dumped partially using a filter, from Nicolas Dichtel. 6) Convert many drivers to pci_enable_msix_range(), from Alexander Gordeev. 7) Record SKB timestamps more efficiently, from Eric Dumazet. 8) Switch to microsecond resolution for TCP round trip times, also from Eric Dumazet. 9) Clean up and fix 6lowpan fragmentation handling by making use of the existing inet_frag api for it's implementation. 10) Add TX grant mapping to xen-netback driver, from Zoltan Kiss. 11) Auto size SKB lengths when composing netlink messages based upon past message sizes used, from Eric Dumazet. 12) qdisc dumps can take a long time, add a cond_resched(), From Eric Dumazet. 13) Sanitize netpoll core and drivers wrt. SKB handling semantics. Get rid of never-used-in-tree netpoll RX handling. From Eric W Biederman. 14) Support inter-address-family and namespace changing in VTI tunnel driver(s). From Steffen Klassert. 15) Add Altera TSE driver, from Vince Bridgers. 16) Optimizing csum_replace2() so that it doesn't adjust the checksum by checksumming the entire header, from Eric Dumazet. 17) Expand BPF internal implementation for faster interpreting, more direct translations into JIT'd code, and much cleaner uses of BPF filtering in non-socket ocntexts. From Daniel Borkmann and Alexei Starovoitov" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1976 commits) netpoll: Use skb_irq_freeable to make zap_completion_queue safe. net: Add a test to see if a skb is freeable in irq context qlcnic: Fix build failure due to undefined reference to `vxlan_get_rx_port' net: ptp: move PTP classifier in its own file net: sxgbe: make "core_ops" static net: sxgbe: fix logical vs bitwise operation net: sxgbe: sxgbe_mdio_register() frees the bus Call efx_set_channels() before efx->type->dimension_resources() xen-netback: disable rogue vif in kthread context net/mlx4: Set proper build dependancy with vxlan be2net: fix build dependency on VxLAN mac802154: make csma/cca parameters per-wpan mac802154: allow only one WPAN to be up at any given time net: filter: minor: fix kdoc in __sk_run_filter netlink: don't compare the nul-termination in nla_strcmp can: c_can: Avoid led toggling for every packet. can: c_can: Simplify TX interrupt cleanup can: c_can: Store dlc private can: c_can: Reduce register access can: c_can: Make the code readable ...
2014-04-03ceph: print inode number for LOOKUPINO requestYan, Zheng
Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com> Reviewed-by: Sage Weil <sage@inktank.com>
2014-04-03ceph: add get_name() NFS export callbackYan, Zheng
Use the newly introduced LOOKUPNAME MDS request to connect child inode to its parent directory. Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com> Reviewed-by: Sage Weil <sage@inktank.com>
2014-04-03ceph: fix ceph_fh_to_parent()Yan, Zheng
ceph_fh_to_parent() returns dentry that corresponds to the 'ino' field of struct ceph_nfs_confh. This is wrong, it should return dentry that corresponds to the 'parent_ino' field. Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com> Reviewed-by: Sage Weil <sage@inktank.com>
2014-04-03ceph: add get_parent() NFS export callbackYan, Zheng
The callback uses LOOKUPPARENT MDS request to find parent. Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com> Reviewed-by: Sage Weil <sage@inktank.com>
2014-04-03ceph: simplify ceph_fh_to_dentry()Yan, Zheng
MDS handles LOOKUPHASH and LOOKUPINO MDS requests in the same way. So __cfh_to_dentry() is redundant. Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com> Reviewed-by: Sage Weil <sage@inktank.com>
2014-04-03ceph: fscache: Wait for completion of object initializationYunchuan Wen
The object store limit needs to be updated after writing, and this can be done provided the corresponding object has already been initialized. Current object initialization is done asynchrously, which introduce a race if a file is opened, then immediately followed by a writing, the initialization may have not completed, the code will reach the ASSERT in fscache_submit_exclusive_op() to cause kernel bug. Tested-by: Milosz Tanski <milosz@adfin.com> Signed-off-by: Yunchuan Wen <yunchuanwen@ubuntukylin.com> Signed-off-by: Min Chen <minchen@ubuntukylin.com> Signed-off-by: Li Wang <liwang@ubuntukylin.com>
2014-04-03ceph: fscache: Update object store limit after file writingYunchuan Wen
Synchronize object->store_limit[_l] with new inode->i_size after file writing. Tested-by: Milosz Tanski <milosz@adfin.com> Signed-off-by: Yunchuan Wen <yunchuanwen@ubuntukylin.com> Signed-off-by: Min Chen <minchen@ubuntukylin.com> Signed-off-by: Li Wang <liwang@ubuntukylin.com>
2014-04-03ceph: fscache: add an interface to synchronize object store limitYunchuan Wen
Add an interface to explicitly synchronize object->store_limit[_l] with inode->i_size Tested-by: Milosz Tanski <milosz@adfin.com> Signed-off-by: Yunchuan Wen <yunchuanwen@ubuntukylin.com> Signed-off-by: Min Chen <minchen@ubuntukylin.com> Signed-off-by: Li Wang <liwang@ubuntukylin.com>
2014-04-03ceph: do not set r_old_dentry_dir on link()Sage Weil
This is racy--we do not know whather d_parent has changed out from underneath us because i_mutex is not held on the source inode's directory. Also, taking this reference is useless. Reported-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Sage Weil <sage@inktank.com> Reviewed-by: Yan, Zheng <zheng.z.yan@intel.com>
2014-04-03ceph: do not assume r_old_dentry[_dir] always set togetherSage Weil
Do not assume that r_old_dentry implies that r_old_dentry_dir is also true. Separate out the ref cleanup and make the debugs dump behave when it is NULL. Signed-off-by: Sage Weil <sage@inktank.com> Reviewed-by: Yan, Zheng <zheng.z.yan@intel.com>
2014-04-03ceph: do not chain inode updates to parent fsyncSage Weil
The fsync(dirfd) only covers namespace operations, not inode updates. We do not need to cover setattr variants or O_TRUNC. Reported-by: Al Viro <viro@xeniv.linux.org.uk> Signed-off-by: Sage Weil <sage@inktank.com> Reviewed-by: Yan, Zheng <zheng.z.yan@intel.com>
2014-04-03ceph: avoid useless ceph_get_dentry_parent_inode() in ceph_rename()Sage Weil
This is just old_dir; no reason to abuse the dcache pointers. Reported-by: Al Viro <viro.zeniv.linux.org.uk> Signed-off-by: Sage Weil <sage@inktank.com> Reviewed-by: Yan, Zheng <zheng.z.yan@intel.com>
2014-04-03ceph: let MDS adjust readdir 'frag'Yan, Zheng
If readdir 'frag' is adjusted, readdir 'offset' should be reset. Otherwise some dentries may be lost when readdir and fragmenting directory happen at the some. Another way to fix this issue is let MDS adjust readdir 'frag'. The code that handles MDS reply reset the readdir 'offset' if the readdir reply is different than the requested one. Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
2014-04-03ceph: fix reset_readdir()Yan, Zheng
When changing readdir postion, fi->next_offset should be set to 0 if the new postion is not in the first dirfrag. Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com> Reviewed-by: Alex Elder <elder@linaro.org>
2014-04-03ceph: fix ceph_dir_llseek()Yan, Zheng
Comparing offset with inode->i_sb->s_maxbytes doesn't make sense for directory. For a fragmented directory, offset (frag_t, off) can be larger than inode->i_sb->s_maxbytes. At the very beginning of ceph_dir_llseek(), local variable old_offset is initialized to parameter offset. This doesn't make sense neither. Old_offset should be ceph_make_fpos(fi->frag, fi->next_offset). Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com> Reviewed-by: Alex Elder <elder@linaro.org>
2014-04-03rbd: prefix rbd writes with CEPH_OSD_OP_SETALLOCHINT osd opIlya Dryomov
In an effort to reduce fragmentation, prefix every rbd write with a CEPH_OSD_OP_SETALLOCHINT osd op with an expected_write_size value set to the object size (1 << order). Backwards compatibility is taken care of on the libceph/osd side. "The CEPH_OSD_OP_SETALLOCHINT hint is durable, in that it's enough to do it once. The reason every rbd write is prefixed is that rbd doesn't explicitly create objects and relies on writes creating them implicitly, so there is no place to stick a single hint op into. To get around that we decided to prefix every rbd write with a hint (just like write and setattr ops, hint op will create an object implicitly if it doesn't exist)." Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com> Reviewed-by: Sage Weil <sage@inktank.com> Reviewed-by: Alex Elder <elder@linaro.org>
2014-04-03rbd: num_ops parameter for rbd_osd_req_create()Ilya Dryomov
In preparation for prefixing rbd writes with an allocation hint introduce a num_ops parameter for rbd_osd_req_create(). The rationale is that not every write request is a write op that needs to be prefixed (e.g. watch op), so the num_ops logic needs to be in the callers. Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com> Reviewed-by: Sage Weil <sage@inktank.com> Reviewed-by: Alex Elder <elder@linaro.org>
2014-04-03libceph: bump CEPH_OSD_MAX_OP to 3Ilya Dryomov
Our longest osd request now contains 3 ops: copyup+hint+write. Also, CEPH_OSD_MAX_OP value in a BUG_ON in rbd_osd_req_callback() was hard-coded to 2. Fix it, and switch to rbd_assert while at it. Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com> Reviewed-by: Sage Weil <sage@inktank.com> Reviewed-by: Alex Elder <elder@linaro.org>
2014-04-03libceph: add support for CEPH_OSD_OP_SETALLOCHINT osd opIlya Dryomov
This is primarily for rbd's benefit and is supposed to combat fragmentation: "... knowing that rbd images have a 4m size, librbd can pass a hint that will let the osd do the xfs allocation size ioctl on new files so that they are allocated in 1m or 4m chunks. We've seen cases where users with rbd workloads have very high levels of fragmentation in xfs and this would mitigate that and probably have a pretty nice performance benefit." SETALLOCHINT is considered advisory, so our backwards compatibility mechanism here is to set FAILOK flag for all SETALLOCHINT ops. Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com> Reviewed-by: Sage Weil <sage@inktank.com> Reviewed-by: Alex Elder <elder@linaro.org>
2014-04-03libceph: encode CEPH_OSD_OP_FLAG_* op flagsIlya Dryomov
Encode ceph_osd_op::flags field so that it gets sent over the wire. Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com> Reviewed-by: Sage Weil <sage@inktank.com> Reviewed-by: Alex Elder <elder@linaro.org>
2014-04-03rbd: fix error paths in rbd_img_request_fill()Ilya Dryomov
Doing rbd_obj_request_put() in rbd_img_request_fill() error paths is not only insufficient, but also triggers an rbd_assert() in rbd_obj_request_destroy(): Assertion failure in rbd_obj_request_destroy() at line 1867: rbd_assert(obj_request->img_request == NULL); rbd_img_obj_request_add() adds obj_requests to the img_request, the opposite is rbd_img_obj_request_del(). Use it. Fixes: http://tracker.ceph.com/issues/7327 Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com> Reviewed-by: Alex Elder <elder@linaro.org>
2014-04-03rbd: remove out_partial label in rbd_img_request_fill()Ilya Dryomov
Commit 03507db631c94 ("rbd: fix buffer size for writes to images with snapshots") moved the call to rbd_img_obj_request_add() up, making the out_partial label bogus. Remove it. Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com> Reviewed-by: Alex Elder <elder@linaro.org>
2014-04-03libceph: a per-osdc crush scratch bufferIlya Dryomov
With the addition of erasure coding support in the future, scratch variable-length array in crush_do_rule_ary() is going to grow to at least 200 bytes on average, on top of another 128 bytes consumed by rawosd/osd arrays in the call chain. Replace it with a buffer inside struct osdmap and a mutex. This shouldn't result in any contention, because all osd requests were already serialized by request_mutex at that point; the only unlocked caller was ceph_ioctl_get_dataloc(). Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com> Reviewed-by: Sage Weil <sage@inktank.com>
2014-04-02Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid Pull HID updates from Jiri Kosina: - substantial cleanup of the generic and transport layers, in the direction of an ultimate goal of making struct hid_device completely transport independent, by Benjamin Tissoires - cp2112 driver from David Barksdale - a lot of fixes and new hardware support (Dualshock 4) to hid-sony driver, by Frank Praznik - support for Win 8.1 multitouch protocol by Andrew Duggan - other smaller fixes / device ID additions * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (75 commits) HID: sony: fix force feedback mismerge HID: sony: Set the quriks flag for Bluetooth controllers HID: sony: Fix Sixaxis cable state detection HID: uhid: Add UHID_CREATE2 + UHID_INPUT2 HID: hyperv: fix _raw_request() prototype HID: hyperv: Implement a stub raw_request() entry point HID: hid-sensor-hub: fix sleeping function called from invalid context HID: multitouch: add support for Win 8.1 multitouch touchpads HID: remove hid_output_raw_report transport implementations HID: sony: do not rely on hid_output_raw_report HID: cp2112: remove the last hid_output_raw_report() call HID: cp2112: remove various hid_out_raw_report calls HID: multitouch: add support of other generic collections in hid-mt HID: multitouch: remove pen special handling HID: multitouch: remove registered devices with default behavior HID: hidp: Add a comment that some devices depend on the current behavior of uniq HID: sony: Prevent duplicate controller connections. HID: sony: Perform a boundry check on the sixaxis battery level index. HID: sony: Fix work queue issues HID: sony: Fix multi-line comment styling ...
2014-04-02Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial Pull trivial tree updates from Jiri Kosina: "Usual rocket science -- mostly documentation and comment updates" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: sparse: fix comment doc: fix double words isdn: capi: fix "CAPI_VERSION" comment doc: DocBook: Fix typos in xml and template file Bluetooth: add module name for btwilink driver core: unexport static function create_syslog_header mmc: core: typo fix in printk specifier ARM: spear: clean up editing mistake net-sysfs: fix comment typo 'CONFIG_SYFS' doc: Insert MODULE_ in module-signing macros Documentation: update URL to hfsplus Technote 1150 gpio: update path to documentation ixgbe: Fix format string in ixgbe_fcoe. Kconfig: Remove useless "default N" lines user_namespace.c: Remove duplicated word in comment CREDITS: fix formatting treewide: Fix typo in Documentation/DocBook mm: Fix warning on make htmldocs caused by slab.c ata: ata-samsung_cf: cleanup in header file idr: remove unused prototype of idr_free()
2014-04-02Merge branch 'sched-idle-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull sched/idle changes from Ingo Molnar: "More idle code reorganization, to prepare for more integration. (Sent separately because it depended on pending timer work, which is now upstream)" * 'sched-idle-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched/idle: Add more comments to the code sched/idle: Move idle conditions in cpuidle_idle main function sched/idle: Reorganize the idle loop cpuidle/idle: Move the cpuidle_idle_call function to idle.c idle/cpuidle: Split cpuidle_idle_call main function into smaller functions
2014-04-02pid_namespace: pidns_get() should check task_active_pid_ns() != NULLOleg Nesterov
pidns_get()->get_pid_ns() can hit ns == NULL. This task_struct can't go away, but task_active_pid_ns(task) is NULL if release_task(task) was already called. Alternatively we could change get_pid_ns(ns) to check ns != NULL, but it seems that other callers are fine. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Cc: Eric W. Biederman ebiederm@xmission.com> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-04-02Merge tag 'kvm-3.15-1' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull kvm updates from Paolo Bonzini: "PPC and ARM do not have much going on this time. Most of the cool stuff, instead, is in s390 and (after a few releases) x86. ARM has some caching fixes and PPC has transactional memory support in guests. MIPS has some fixes, with more probably coming in 3.16 as QEMU will soon get support for MIPS KVM. For x86 there are optimizations for debug registers, which trigger on some Windows games, and other important fixes for Windows guests. We now expose to the guest Broadwell instruction set extensions and also Intel MPX. There's also a fix/workaround for OS X guests, nested virtualization features (preemption timer), and a couple kvmclock refinements. For s390, the main news is asynchronous page faults, together with improvements to IRQs (floating irqs and adapter irqs) that speed up virtio devices" * tag 'kvm-3.15-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (96 commits) KVM: PPC: Book3S HV: Save/restore host PMU registers that are new in POWER8 KVM: PPC: Book3S HV: Fix decrementer timeouts with non-zero TB offset KVM: PPC: Book3S HV: Don't use kvm_memslots() in real mode KVM: PPC: Book3S HV: Return ENODEV error rather than EIO KVM: PPC: Book3S: Trim top 4 bits of physical address in RTAS code KVM: PPC: Book3S HV: Add get/set_one_reg for new TM state KVM: PPC: Book3S HV: Add transactional memory support KVM: Specify byte order for KVM_EXIT_MMIO KVM: vmx: fix MPX detection KVM: PPC: Book3S HV: Fix KVM hang with CONFIG_KVM_XICS=n KVM: PPC: Book3S: Introduce hypervisor call H_GET_TCE KVM: PPC: Book3S HV: Fix incorrect userspace exit on ioeventfd write KVM: s390: clear local interrupts at cpu initial reset KVM: s390: Fix possible memory leak in SIGP functions KVM: s390: fix calculation of idle_mask array size KVM: s390: randomize sca address KVM: ioapic: reinject pending interrupts on KVM_SET_IRQCHIP KVM: Bump KVM_MAX_IRQ_ROUTES for s390 KVM: s390: irq routing for adapter interrupts. KVM: s390: adapter interrupt sources ...
2014-04-02Merge tag 'virtio-next-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux Pull virtio updates from Rusty Russell: "Nothing exciting: virtio-blk users might see a bit of a boost from the doubling of the default queue length though" * tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: virtio-blk: base queue-depth on virtqueue ringsize or module param Revert a02bbb1ccfe8: MAINTAINERS: add virtio-dev ML for virtio virtio: fail adding buffer on broken queues. virtio-rng: don't crash if virtqueue is broken. virtio_balloon: don't crash if virtqueue is broken. virtio_blk: don't crash, report error if virtqueue is broken. virtio_net: don't crash if virtqueue is broken. virtio_balloon: don't softlockup on huge balloon changes. virtio: Use pci_enable_msix_exact() instead of pci_enable_msix() MAINTAINERS: virtio-dev is subscribers only tools/virtio: add a missing ) tools/virtio: fix missing kmemleak_ignore symbol tools/virtio: update internal copies of headers
2014-04-02Merge branch 'for-3.15' of ↵Linus Torvalds
git://git.linaro.org/people/mszyprowski/linux-dma-mapping Pull DMA-mapping updates from Marek Szyprowski: "This contains extension for more efficient handling of io address space for dma-mapping subsystem for ARM architecture" * 'for-3.15' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping: arm: dma-mapping: remove order parameter from arm_iommu_create_mapping() arm: dma-mapping: Add support to extend DMA IOMMU mappings
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