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2013-05-15blk-throttle: implement sq_to_tg(), sq_to_td() and throtl_log()Tejun Heo1-29/+81
Now that both throtl_data and throtl_grp embed throtl_service_queue, we can unify throtl_log() and throtl_log_tg(). * sq_to_tg() is added. This returns the throtl_grp a service_queue is embedded in. If the service_queue is the top-level one embedded in throtl_data, NULL is returned. * sq_to_td() is added. A service_queue is always associated with a throtl_data. This function finds the associated td and returns it. * throtl_log() is updated to take throtl_service_queue instead of throtl_data. If the service_queue is one embedded in throtl_grp, it prints the same header as throtl_log_tg() did. If it's one embedded in throtl_data, it behaves the same as before. This renders throtl_log_tg() unnecessary. Removed. This change is necessary for hierarchy support as we're gonna be using the same code paths to dispatch bios to intermediate service_queues embedded in throtl_grps and the top-level service_queue embedded in throtl_data. This patch doesn't make any behavior changes. v2: throtl_log() didn't print a space after blkg path. Updated so that it prints a space after throtl_grp path. Spotted by Vivek. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Vivek Goyal <vgoyal@redhat.com>
2013-05-15blk-throttle: add throtl_service_queue->parent_sqTejun Heo1-42/+39
To prepare for hierarchy support, this patch adds throtl_service_queue->service_sq which points to the arent service_queue. Currently, for all service_queues embedded in throtl_grps, it points to throtl_data->service_queue. As throtl_data->service_queue doesn't have a parent its parent_sq is set to NULL. There are a number of functions which take both throtl_grp *tg and throtl_service_queue *parent_sq. With this patch, the parent service_queue can be determined from @tg and the @parent_sq arguments are removed. This patch doesn't make any behavior differences. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Vivek Goyal <vgoyal@redhat.com>
2013-05-15blk-throttle: generalize update_disptime optimization in blk_throtl_bio()Tejun Heo1-10/+18
When blk_throtl_bio() wants to queue a bio to a tg (throtl_grp), it avoids invoking tg_update_disptime() and throtl_schedule_next_dispatch() if the tg already has bios queued in that direction. As a new bio is appeneded after the existing ones, it can't change the tg's next dispatch time or the parent's dispatch schedule. This optimization is currently open coded in blk_throtl_bio(). Whether the target biolist was occupied was recorded in a local variable and later used to skip disptime update. This patch moves generalizes it so that throtl_add_bio_tg() sets a new flag THROTL_TG_WAS_EMPTY if the biolist was empty before the new bio was added. tg_update_disptime() clears the flag automatically. blk_throtl_bio() is updated to simply test the flag before updating disptime. This patch doesn't make any functional differences now but will enable using the same optimization for recursive dispatch. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Vivek Goyal <vgoyal@redhat.com>
2013-05-15blk-throttle: dispatch to throtl_data->service_queue.bio_lists[]Tejun Heo1-17/+23
throtl_service_queues will eventually form a tree which is anchored at throtl_data->service_queue and queue bios will climb the tree to the top service_queue to be executed. This patch makes the dispatch paths in blk_throtl_dispatch_work_fn() and blk_throtl_drain() to dispatch bios to throtl_data->service_queue.bio_lists[] instead of the on-stack bio_lists. This will keep the final dispatch to the top level service_queue share the same mechanism as dispatches through the rest of the hierarchy. As bio's should be issued in a sleepable context, blk_throtl_dispatch_work_fn() transfers all dispatched bio's from the service_queue bio_lists[] into an onstack one before dropping queue_lock and issuing the bio's. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Vivek Goyal <vgoyal@redhat.com>
2013-05-15blk-throttle: move bio_lists[] and friends to throtl_service_queueTejun Heo1-24/+39
throtl_service_queues will eventually form a tree which is anchored at throtl_data->service_queue and queue bios will climb the tree to the top service_queue to be executed. This patch moves bio_lists[] and nr_queued[] from throtl_grp to its service_queue to prepare for that. As currently only the throtl_data->service_queue is in use, this patch just ends up moving throtl_grp->bio_lists[] and ->nr_queued[] to throtl_grp->service_queue.bio_lists[] and ->nr_queued[] without making any functional differences. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Vivek Goyal <vgoyal@redhat.com>
2013-05-15blk-throttle: add throtl_grp->service_queueTejun Heo1-4/+11
Currently, there's single service_queue per queue - throtl_data->service_queue. All active throtl_grp's are queued on the queue and dispatched according to their limits. To support hierarchy, this will be expanded such that active throtl_grp's form a tree anchored at throtl_data->service_queue and chained through each intermediate throtl_grp's service_queue. This patch adds throtl_grp->service_queue to prepare for hierarchy support. The initialization function - throtl_service_queue_init() - is added and replaces the macro initializer. The newly added tg->service_queue isn't used yet. Following patches will do. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Vivek Goyal <vgoyal@redhat.com>
2013-05-15blk-throttle: reorganize throtl_service_queue passed around as argumentTejun Heo1-49/+51
throtl_service_queue will be the building block of hierarchy support and will form a tree. This patch updates its usages as arguments to reduce confusion. * When a service queue is used as the parent role - the host of the rbtree - use @parent_sq instead of @sq. * For functions taking both @tg and @parent_sq, reorder them so that the order is (@tg, @parent_sq) not the other way around. This makes the code follow the usual convention of specifying the primary target of the operation as the first argument. This patch doesn't make any functional differences. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Vivek Goyal <vgoyal@redhat.com>
2013-05-15blk-throttle: pass around throtl_service_queue instead of throtl_dataTejun Heo1-25/+28
throtl_service_queue will be used as the basic block to implement hierarchy support. Pass around throtl_service_queue *sq instead of throtl_data *td in the following functions which will be used across multiple levels of hierarchy. * [__]throtl_enqueue/dequeue_tg() * throtl_add_bio_tg() * tg_update_disptime() * throtl_select_dispatch() Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Vivek Goyal <vgoyal@redhat.com>
2013-05-15blk-throttle: add backlink pointer from throtl_grp to throtl_dataTejun Heo1-53/+53
Add throtl_grp->td so that the td (throtl_data) a given tg (throtl_grp) belongs to can be determined, and remove @td argument from functions which take both @td and @tg as the former now can be determined from the latter. This generally simplifies the code and removes a number of cases where @td is passed as an argument without being actually used. This will also help hierarchy support implementation. While at it, in multi-line conditions, move the logical operators leading broken lines to the end of the previous line. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Vivek Goyal <vgoyal@redhat.com>
2013-05-15blk-throttle: simplify throtl_grp flag handlingTejun Heo1-25/+9
blk-throttle is still using function-defining macros to define flag handling functions, which went out style at least a decade ago. Just define the flag as bitmask and use direct bit operations. This patch doesn't make any functional changes. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Vivek Goyal <vgoyal@redhat.com>
2013-05-15blk-throttle: rename throtl_rb_root to throtl_service_queueTejun Heo1-42/+42
throtl_rb_root will be expanded to cover more roles for hierarchy support. Rename it to throtl_service_queue and make its fields more descriptive. * rb -> pending_tree * left -> first_pending * count -> nr_pending * min_disptime -> first_pending_disptime This patch is purely cosmetic. Signed-off-by: Tejun Heo <tj@kernel.org Acked-by: Vivek Goyal <vgoyal@redhat.com>
2013-05-15blk-throttle: remove pointless throtl_nr_queued() optimizationsTejun Heo1-22/+7
throtl_nr_queued() is used in several places to avoid performing certain operations when the throtl_data is empty. This usually is useless as those paths usually aren't traveled if there's no bio queued. * throtl_schedule_delayed_work() skips scheduling dispatch work item if @td doesn't have any bios queued; however, the only case it can be called when @td is empty is from tg_set_conf() which isn't something we should be optimizing for. * throtl_schedule_next_dispatch() takes a quick exit if @td is empty; however, right after that it triggers BUG if the service tree is empty. The two conditions are equivalent and it can just test @st->count for the quick exit. * blk_throtl_dispatch_work_fn() skips dispatch if @td is empty. This work function isn't usually invoked when @td is empty. The only possibility is from tg_set_conf() and when it happens the normal dispatching path can handle empty @td fine. No need to add special skip path. This patch removes the above three unnecessary optimizations, which leave throtl_log() call in blk_throtl_dispatch_work_fn() the only user of throtl_nr_queued(). Remove throtl_nr_queued() and open code it in throtl_log(). I don't think we need td->nr_queued[] at all. Maybe we can remove it later. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Vivek Goyal <vgoyal@redhat.com>
2013-05-15blk-throttle: relocate throtl_schedule_delayed_work()Tejun Heo1-16/+13
Move throtl_schedule_delayed_work() above its first user so that the forward declaration can be removed. This patch is pure relocaiton. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Vivek Goyal <vgoyal@redhat.com>
2013-05-15blk-throttle: collapse throtl_dispatch() into the work functionTejun Heo1-17/+9
blk-throttle is about to go through major restructuring to support hierarchy. Do cosmetic updates in preparation. * s/throtl_data->throtl_work/throtl_data->dispatch_work/ * s/blk_throtl_work()/blk_throtl_dispatch_work_fn()/ * Collapse throtl_dispatch() into blk_throtl_dispatch_work_fn() This patch is purely cosmetic. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Vivek Goyal <vgoyal@redhat.com>
2013-05-15blk-throttle: remove deferred config application mechanismTejun Heo1-54/+20
When bps or iops configuration changes, blk-throttle records the new configuration and sets a flag indicating that the config has changed. The flag is checked in the bio dispatch path and applied. This deferred config application was necessary due to limitations in blkcg framework, which haven't existed for quite a while now. This patch removes the deferred config application mechanism and applies new configurations directly from tg_set_conf(), which is simpler. v2: Dropped unnecessary throtl_schedule_delayed_work() call from tg_set_conf() as suggested by Vivek Goyal. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Vivek Goyal <vgoyal@redhat.com>
2013-05-15blk-throttle: remove spurious throtl_enqueue_tg() call from ↵Tejun Heo1-3/+1
throtl_select_dispatch() throtl_select_dispatch() calls throtl_enqueue_tg() right after tg_update_disptime(), which always calls the function anyway. The call is, while harmless, unnecessary. Remove it. This patch doesn't introduce any behavior difference. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Vivek Goyal <vgoyal@redhat.com>
2013-05-15blkcg: move bulk of blkcg_gq release operations to the RCU callbackTejun Heo2-20/+18
Currently, when the last reference of a blkcg_gq is put, all then release operations sans the actual freeing happen directly in blkg_put(). As blkg_put() may be called under queue_lock, all pd_exit_fn()s may be too. This makes it impossible for pd_exit_fn()s to use del_timer_sync() on timers which grab the queue_lock which is an irq-safe lock due to the deadlock possibility described in the comment on top of del_timer_sync(). This can be easily avoided by perfoming the release operations in the RCU callback instead of directly from blkg_put(). This patch moves the blkcg_gq release operations to the RCU callback. As this leaves __blkg_release() with only call_rcu() invocation, blkg_rcu_free() is renamed to __blkg_release_rcu(), exported and call_rcu() invocation is now done directly from blkg_put() instead of going through __blkg_release() which is removed. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Vivek Goyal <vgoyal@redhat.com>
2013-05-15blkcg: invoke blkcg_policy->pd_init() after parent is linkedTejun Heo1-17/+22
Currently, when creating a new blkcg_gq, each policy's pd_init_fn() is invoked in blkg_alloc() before the parent is linked. This makes it difficult for policies to perform initializations which are dependent on the parent. This patch moves pd_init_fn() invocations to blkg_create() after the parent blkg is linked where the new blkg is fully initialized. As this means that blkg_free() can't assume that pd's are initialized, pd_exit_fn() invocations are moved to __blkg_release(). This guarantees that pd_exit_fn() is also invoked with fully initialized blkgs with valid parent pointers. This will help implementing hierarchy support in blk-throttle. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Vivek Goyal <vgoyal@redhat.com>
2013-05-15blkcg: implement blkg_for_each_descendant_post()Tejun Heo1-0/+14
This will be used by blk-throttle hierarchy support. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Vivek Goyal <vgoyal@redhat.com>
2013-05-15blkcg: move blkg_for_each_descendant_pre() to block/blk-cgroup.hTejun Heo2-22/+22
blk-throttle hierarchy support will make use of it. Move blkg_for_each_descendant_pre() from block/blk-cgroup.c to block/blk-cgroup.h. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Vivek Goyal <vgoyal@redhat.com>
2013-05-15blkcg: fix error return path in blkg_create()Tejun Heo1-1/+1
In blkg_create(), after lookup of parent fails, the control jumps to error path with the error code encoded into @blkg. The error path doesn't use @blkg for the return value. It returns ERR_PTR(ret). Make lookup fail path set @ret instead of @blkg. Note that the parent lookup is guaranteed to succeed at that point and the condition check is purely for sanity and triggers WARN when fails. As such, I don't think it's necessary to mark it for -stable. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Vivek Goyal <vgoyal@redhat.com>
2013-05-12Linux 3.10-rc1Linus Torvalds1-2/+2
2013-05-12Merge tag 'trace-fixes-v3.10' of ↵Linus Torvalds6-108/+368
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing/kprobes update from Steven Rostedt: "The majority of these changes are from Masami Hiramatsu bringing kprobes up to par with the latest changes to ftrace (multi buffering and the new function probes). He also discovered and fixed some bugs in doing so. When pulling in his patches, I also found a few minor bugs as well and fixed them. This also includes a compile fix for some archs that select the ring buffer but not tracing. I based this off of the last patch you took from me that fixed the merge conflict error, as that was the commit that had all the changes I needed for this set of changes." * tag 'trace-fixes-v3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: tracing/kprobes: Support soft-mode disabling tracing/kprobes: Support ftrace_event_file base multibuffer tracing/kprobes: Pass trace_probe directly from dispatcher tracing/kprobes: Increment probe hit-count even if it is used by perf tracing/kprobes: Use bool for retprobe checker ftrace: Fix function probe when more than one probe is added ftrace: Fix the output of enabled_functions debug file ftrace: Fix locking in register_ftrace_function_probe() tracing: Add helper function trace_create_new_event() to remove duplicate code tracing: Modify soft-mode only if there's no other referrer tracing: Indicate enabled soft-mode in enable file tracing/kprobes: Fix to increment return event probe hit-count ftrace: Cleanup regex_lock and ftrace_lock around hash updating ftrace, kprobes: Fix a deadlock on ftrace_regex_lock ftrace: Have ftrace_regex_write() return either read or error tracing: Return error if register_ftrace_function_probe() fails for event_enable_func() tracing: Don't succeed if event_enable_func did not register anything ring-buffer: Select IRQ_WORK
2013-05-12Merge tag 'stable/for-linus-3.10-rc0-tag-two' of ↵Linus Torvalds5-7/+55
git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen Pull Xen bug-fixes from Konrad Rzeszutek Wilk: - More fixes in the vCPU PVHVM hotplug path. - Add more documentation. - Fix various ARM related issues in the Xen generic drivers. - Updates in the xen-pciback driver per Bjorn's updates. - Mask the x2APIC feature for PV guests. * tag 'stable/for-linus-3.10-rc0-tag-two' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen: xen/pci: Used cached MSI-X capability offset xen/pci: Use PCI_MSIX_TABLE_BIR, not PCI_MSIX_FLAGS_BIRMASK xen: clear IRQ_NOAUTOEN and IRQ_NOREQUEST xen: mask x2APIC feature in PV xen: SWIOTLB is only used on x86 xen/spinlock: Fix check from greater than to be also be greater or equal to. xen/smp/pvhvm: Don't point per_cpu(xen_vpcu, 33 and larger) to shared_info xen/vcpu: Document the xen_vcpu_info and xen_vcpu xen/vcpu/pvhvm: Fix vcpu hotplugging hanging.
2013-05-12Merge tag 'scsi-for-linus' of ↵Linus Torvalds101-1481/+10569
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull second SCSI update from James "Jaj B" Bottomley: "This is the final round of SCSI patches for the merge window. It consists mostly of driver updates (bnx2fc, ibmfc, fnic, lpfc, be2iscsi, pm80xx, qla4x and ipr). There's also the power management updates that complete the patches in Jens' tree, an iscsi refcounting problem fix from the last pull, some dif handling in scsi_debug fixes, a few nice code cleanups and an error handling busy bug fix." * tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (92 commits) [SCSI] qla2xxx: Update firmware link in Kconfig file. [SCSI] iscsi class, qla4xxx: fix sess/conn refcounting when find fns are used [SCSI] sas: unify the pointlessly separated enums sas_dev_type and sas_device_type [SCSI] pm80xx: thermal, sas controller config and error handling update [SCSI] pm80xx: NCQ error handling changes [SCSI] pm80xx: WWN Modification for PM8081/88/89 controllers [SCSI] pm80xx: Changed module name and debug messages update [SCSI] pm80xx: Firmware flash memory free fix, with addition of new memory region for it [SCSI] pm80xx: SPC new firmware changes for device id 0x8081 alone [SCSI] pm80xx: Added SPCv/ve specific hardware functionalities and relevant changes in common files [SCSI] pm80xx: MSI-X implementation for using 64 interrupts [SCSI] pm80xx: Updated common functions common for SPC and SPCv/ve [SCSI] pm80xx: Multiple inbound/outbound queue configuration [SCSI] pm80xx: Added SPCv/ve specific ids, variables and modify for SPC [SCSI] lpfc: fix up Kconfig dependencies [SCSI] Handle MLQUEUE busy response in scsi_send_eh_cmnd [SCSI] sd: change to auto suspend mode [SCSI] sd: use REQ_PM in sd's runtime suspend operation [SCSI] qla4xxx: Fix iocb_cnt calculation in qla4xxx_send_mbox_iocb() [SCSI] ufs: Correct the expected data transfersize ...
2013-05-12Merge branch 'release' of ↵Linus Torvalds4-2/+78
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux Pull idle update from Len Brown: "Add support for new Haswell-ULT CPU idle power states" * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: intel_idle: initial C8, C9, C10 support tools/power turbostat: display C8, C9, C10 residency
2013-05-12Merge git://git.infradead.org/users/eparis/auditLinus Torvalds12-867/+745
Pull audit changes from Eric Paris: "Al used to send pull requests every couple of years but he told me to just start pushing them to you directly. Our touching outside of core audit code is pretty straight forward. A couple of interface changes which hit net/. A simple argument bug calling audit functions in namei.c and the removal of some assembly branch prediction code on ppc" * git://git.infradead.org/users/eparis/audit: (31 commits) audit: fix message spacing printing auid Revert "audit: move kaudit thread start from auditd registration to kaudit init" audit: vfs: fix audit_inode call in O_CREAT case of do_last audit: Make testing for a valid loginuid explicit. audit: fix event coverage of AUDIT_ANOM_LINK audit: use spin_lock in audit_receive_msg to process tty logging audit: do not needlessly take a lock in tty_audit_exit audit: do not needlessly take a spinlock in copy_signal audit: add an option to control logging of passwords with pam_tty_audit audit: use spin_lock_irqsave/restore in audit tty code helper for some session id stuff audit: use a consistent audit helper to log lsm information audit: push loginuid and sessionid processing down audit: stop pushing loginid, uid, sessionid as arguments audit: remove the old depricated kernel interface audit: make validity checking generic audit: allow checking the type of audit message in the user filter audit: fix build break when AUDIT_DEBUG == 2 audit: remove duplicate export of audit_enabled Audit: do not print error when LSMs disabled ...
2013-05-10Merge branch 'for-3.10' of git://linux-nfs.org/~bfields/linuxLinus Torvalds3-37/+48
Pull nfsd fixes from Bruce Fields: "Small fixes for two bugs and two warnings" * 'for-3.10' of git://linux-nfs.org/~bfields/linux: nfsd: fix oops when legacy_recdir_name_error is passed a -ENOENT error SUNRPC: fix decoding of optional gss-proxy xdr fields SUNRPC: Refactor gssx_dec_option_array() to kill uninitialized warning nfsd4: don't allow owner override on 4.1 CLAIM_FH opens
2013-05-10Merge branch 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86Linus Torvalds10-12/+242
Pull x86 platform drivers from Matthew Garrett: "Small set of updates, mainly trivial bugfixes and some small updates to deal with newer hardware. There's also a new driver that allows qemu guests to notify the hypervisor that they've just paniced, which seems useful." * 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86: Add support for fan button on Ideapad Z580 pvpanic: pvpanic device driver asus-nb-wmi: set wapf=4 for ASUSTeK COMPUTER INC. X75A drivers: platform: x86: Use PTR_RET function sony-laptop: SVS151290S kbd backlight and gfx switch support hp-wmi: add more definitions for new event_id's dell-laptop: Fix krealloc() misuse in parse_da_table() hp_accel: Ignore the error from lis3lv02d_poweron() at resume dell: add new dell WMI format for the AIO machines
2013-05-10Merge branch 'for-linus' of ↵Linus Torvalds20-107/+45
git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal Pull stray syscall bits from Al Viro: "Several syscall-related commits that were missing from the original" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal: switch compat_sys_sysctl to COMPAT_SYSCALL_DEFINE unicore32: just use mmap_pgoff()... unify compat fanotify_mark(2), switch to COMPAT_SYSCALL_DEFINE x86, vm86: fix VM86 syscalls: use SYSCALL_DEFINEx(...)
2013-05-10Merge tag 'ecryptfs-3.10-rc1-ablkcipher' of ↵Linus Torvalds2-41/+103
git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs Pull eCryptfs update from Tyler Hicks: "Improve performance when AES-NI (and most likely other crypto accelerators) is available by moving to the ablkcipher crypto API. The improvement is more apparent on faster storage devices. There's no noticeable change when hardware crypto is not available" * tag 'ecryptfs-3.10-rc1-ablkcipher' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs: eCryptfs: Use the ablkcipher crypto API
2013-05-10Merge tag 'for-linus-20130509' of git://git.infradead.org/~dwmw2/random-2.6Linus Torvalds4-162/+10
Pull misc fixes from David Woodhouse: "This is some miscellaneous cleanups that don't really belong anywhere else (or were ignored), that have been sitting in linux-next for some time. Two of them are fixes resulting from my audit of krealloc() usage that don't seem to have elicited any response when I posted them, and the other three are patches from Artem removing dead code." * tag 'for-linus-20130509' of git://git.infradead.org/~dwmw2/random-2.6: pcmcia: remove RPX board stuff m68k: remove rpxlite stuff pcmcia: remove Motorola MBX860 support params: Fix potential memory leak in add_sysfs_param() dell-laptop: Fix krealloc() misuse in parse_da_table()
2013-05-10Merge tag 'kvm-3.10-2' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds4-26/+80
Pull kvm fixes from Gleb Natapov: "Most of the fixes are in the emulator since now we emulate more than we did before for correctness sake we see more bugs there, but there is also an OOPS fixed and corruption of xcr0 register." * tag 'kvm-3.10-2' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: emulator: emulate SALC KVM: emulator: emulate XLAT KVM: emulator: emulate AAM KVM: VMX: fix halt emulation while emulating invalid guest sate KVM: Fix kvm_irqfd_init initialization KVM: x86: fix maintenance of guest/host xcr0 state
2013-05-10Merge tag 'dm-3.10-changes-2' of ↵Linus Torvalds15-116/+442
git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm Pull device-mapper updates from Alasdair Kergon: "Allow devices that hold metadata for the device-mapper thin provisioning target to be extended easily; allow WRITE SAME on multipath devices; an assortment of little fixes and clean-ups." * tag 'dm-3.10-changes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm: (21 commits) dm cache: set config value dm cache: move config fns dm thin: generate event when metadata threshold passed dm persistent metadata: add space map threshold callback dm persistent data: add threshold callback to space map dm thin: detect metadata device resizing dm persistent data: support space map resizing dm thin: open dev read only when possible dm thin: refactor data dev resize dm cache: replace memcpy with struct assignment dm cache: fix typos in comments dm cache policy: fix description of lookup fn dm: document iterate_devices dm persistent data: fix error message typos dm cache: tune migration throttling dm mpath: enable WRITE SAME support dm table: fix write same support dm bufio: avoid a possible __vmalloc deadlock dm snapshot: fix error return code in snapshot_ctr dm cache: fix error return code in cache_create ...
2013-05-10Merge branch 'for-linus' of ↵Linus Torvalds4-11/+18
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid Pull HID fixes from Jiri Kosina: - fix usage of sleeping lock in atomic context from Jiri Kosina - build fix for hid-steelseries under certain .config setups by Simon Wood - simple mismerge fix from Fernando Luis Vázquez Cao * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: HID: debug: fix RCU preemption issue HID: hid-steelseries fix led class build issue HID: reintroduce fix-up for certain Sony RF receivers
2013-05-10Merge branch 'postmerge' into for-linusJames Bottomley4-38/+93
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-05-10Merge branch 'misc' into for-linusJames Bottomley98-1443/+10476
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-05-10Merge tag 'sound-3.10' of ↵Linus Torvalds13-49/+56
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "This contains small fixes since the previous pull request: - A few regression fixes and small updates of HD-audio - Yet another fix for Haswell HDMI audio - A copule of trivial fixes in ASoC McASP, DPAM and WM8994" * tag 'sound-3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: Revert "ALSA: hda - Don't set up active streams twice" ALSA: Add comment for control TLV API ALSA: hda - Apply pin-enablement workaround to all Haswell HDMI codecs ALSA: HDA: Fix Oops caused by dereference NULL pointer ALSA: mips/sgio2audio: Remove redundant platform_set_drvdata() ALSA: mips/hal2: Remove redundant platform_set_drvdata() ALSA: hda - Fix 3.9 regression of EAPD init on Conexant codecs sound: Fix make allmodconfig on MIPS ALSA: hda - Fix system panic when DMA > 40 bits for Nvidia audio controllers ALSA: atmel: Remove redundant platform_set_drvdata() ASoC: McASP: Fix receive clock polarity in DAIFMT_NB_NF mode. ASoC: wm8994: missing break in wm8994_aif3_hw_params() ASoC: McASP: Add pins output direction for rx clocks when configured in CBS_CFS format ASoC: dapm: use clk_prepare_enable and clk_disable_unprepare
2013-05-10Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds205-2325/+16155
Pull MIPS updates from Ralf Baechle: - More work on DT support for various platforms - Various fixes that were to late to make it straight into 3.9 - Improved platform support, in particular the Netlogic XLR and BCM63xx, and the SEAD3 and Malta eval boards. - Support for several Ralink SOC families. - Complete support for the microMIPS ASE which basically reencodes the existing MIPS32/MIPS64 ISA to use non-constant size instructions. - Some fallout from LTO work which remove old cruft and will generally make the MIPS kernel easier to maintain and resistant to compiler optimization, even in absence of LTO. - KVM support. While MIPS has announced hardware virtualization extensions this KVM extension uses trap and emulate mode for virtualization of MIPS32. More KVM work to add support for VZ hardware virtualizaiton extensions and MIPS64 will probably already be merged for 3.11. Most of this has been sitting in -next for a long time. All defconfigs have been build or run time tested except three for which fixes are being sent by other maintainers. Semantic conflict with kvm updates done as per Ralf * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (118 commits) MIPS: Add new GIC clockevent driver. MIPS: Formatting clean-ups for clocksources. MIPS: Refactor GIC clocksource code. MIPS: Move 'gic_frequency' to common location. MIPS: Move 'gic_present' to common location. MIPS: MIPS16e: Add unaligned access support. MIPS: MIPS16e: Support handling of delay slots. MIPS: MIPS16e: Add instruction formats. MIPS: microMIPS: Optimise 'strnlen' core library function. MIPS: microMIPS: Optimise 'strlen' core library function. MIPS: microMIPS: Optimise 'strncpy' core library function. MIPS: microMIPS: Optimise 'memset' core library function. MIPS: microMIPS: Add configuration option for microMIPS kernel. MIPS: microMIPS: Disable LL/SC and fix linker bug. MIPS: microMIPS: Add vdso support. MIPS: microMIPS: Add unaligned access support. MIPS: microMIPS: Support handling of delay slots. MIPS: microMIPS: Add support for exception handling. MIPS: microMIPS: Floating point support. MIPS: microMIPS: Fix macro naming in micro-assembler. ...
2013-05-10[SCSI] qla2xxx: Update firmware link in Kconfig file.Chad Dupuis1-1/+3
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com> Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-05-10[SCSI] iscsi class, qla4xxx: fix sess/conn refcounting when find fns are usedMike Christie3-55/+49
This fixes a bug where the iscsi class/driver did not do a put_device when a sess/conn device was found. This also simplifies the interface by not having to pass in some arguments that were duplicated and did not need to be exported. Reported-by: Zhao Hongjiang <zhaohongjiang@huawei.com> Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Acked-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-05-10[SCSI] sas: unify the pointlessly separated enums sas_dev_type and ↵James Bottomley24-165/+160
sas_device_type These enums have been separate since the dawn of SAS, mainly because the latter is a procotol only enum and the former includes additional state for libsas. The dichotomy causes endless confusion about which one you should use where and leads to pointless warnings like this: drivers/scsi/mvsas/mv_sas.c: In function 'mvs_update_phyinfo': drivers/scsi/mvsas/mv_sas.c:1162:34: warning: comparison between 'enum sas_device_type' and 'enum sas_dev_type' [-Wenum-compare] Fix by eliminating one of them. The one kept is effectively the sas.h one, but call it sas_device_type and make sure the enums are all properly namespaced with the SAS_ prefix. Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-05-10[SCSI] pm80xx: thermal, sas controller config and error handling updateSakthivel K6-17/+249
Modified thermal configuration to happen after interrupt registration Added SAS controller configuration during initialization Added error handling logic to handle I_T_Nexus errors and variants [jejb: fix up tabs and spaces issues] Signed-off-by: Anand Kumar S <AnandKumar.Santhanam@pmcs.com> Acked-by: Jack Wang <jack_wang@usish.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-05-10[SCSI] pm80xx: NCQ error handling changesSakthivel K5-28/+544
Handled NCQ errors in the low level driver as the FW is not providing the faulty tag for NCQ errors for libsas to recover. [jejb: fix checkpatch issues] Signed-off-by: Anand Kumar S <AnandKumar.Santhanam@pmcs.com> Acked-by: Jack Wang <jack_wang@usish.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-05-10[SCSI] pm80xx: WWN Modification for PM8081/88/89 controllersSakthivel K1-7/+36
Individual WWN read operations based on controller. PM8081 - Read WWN from Flash VPD. PM8088/89 - Read WWN from EEPROM. PM8001 - Read WWN from NVM. Signed-off-by: Sakthivel K <Sakthivel.SaravananKamalRaju@pmcs.com> Signed-off-by: Anand Kumar S <AnandKumar.Santhanam@pmcs.com> Acked-by: Jack Wang <jack_wang@usish.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-05-10[SCSI] pm80xx: Changed module name and debug messages updateSakthivel K3-13/+20
Changed name in driver to pm80xx. Updated debug messages. Signed-off-by: Sakthivel K <Sakthivel.SaravananKamalRaju@pmcs.com> Signed-off-by: Anand Kumar S <AnandKumar.Santhanam@pmcs.com> Acked-by: Jack Wang <jack_wang@usish.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-05-10[SCSI] pm80xx: Firmware flash memory free fix, with addition of new memory ↵Sakthivel K4-27/+14
region for it Performing pci_free_consistent in tasklet had result in a core dump. So allocated a new memory region for it. Fix for passing proper address and operation in firmware flash update. Signed-off-by: Sakthivel K <Sakthivel.SaravananKamalRaju@pmcs.com> Signed-off-by: Anand Kumar S <AnandKumar.Santhanam@pmcs.com> Acked-by: Jack Wang <jack_wang@usish.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-05-10[SCSI] pm80xx: SPC new firmware changes for device id 0x8081 aloneSakthivel K2-3/+30
Additional bar shift for new SPC firmware, applicable to device id 0x8081 only. Signed-off-by: Sakthivel K <Sakthivel.SaravananKamalRaju@pmcs.com> Signed-off-by: Anand Kumar S <AnandKumar.Santhanam@pmcs.com> Acked-by: Jack Wang <jack_wang@usish.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-05-10[SCSI] pm80xx: Added SPCv/ve specific hardware functionalities and relevant ↵Sakthivel K8-18/+5287
changes in common files Implementation of SPCv/ve specific hardware functionality and macros. Changing common functionalities wrt SPCv/ve operations. Conditional checks for SPC specific operations. Signed-off-by: Sakthivel K <Sakthivel.SaravananKamalRaju@pmcs.com> Signed-off-by: Anand Kumar S <AnandKumar.Santhanam@pmcs.com> Acked-by: Jack Wang <jack_wang@usish.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-05-10[SCSI] pm80xx: MSI-X implementation for using 64 interruptsSakthivel K2-30/+113
Implementation of interrupt handlers and tasklets to support upto 64 interrupt for the device. Signed-off-by: Sakthivel K <Sakthivel.SaravananKamalRaju@pmcs.com> Signed-off-by: Anand Kumar S <AnandKumar.Santhanam@pmcs.com> Acked-by: Jack Wang <jack_wang@usish.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Parallels.com>