kernel/linux.git/include/xen, branch v3.15.2

xen/acpi-processor: fix enabling interrupts on syscore_resume

2014-03-18T14:40:20+00:00

syscore->resume() callback is expected to do not enable interrupts, it generates warning like below otherwise: [ 9386.365390] WARNING: CPU: 0 PID: 6733 at drivers/base/syscore.c:104 syscore_resume+0x9a/0xe0() [ 9386.365403] Interrupts enabled after xen_acpi_processor_resume+0x0/0x34 [xen_acpi_processor] ... [ 9386.365429] Call Trace: [ 9386.365434] [] dump_stack+0x45/0x56 [ 9386.365437] [] warn_slowpath_common+0x7d/0xa0 [ 9386.365439] [] warn_slowpath_fmt+0x4c/0x50 [ 9386.365442] [] ? xen_upload_processor_pm_data+0x300/0x300 [xen_acpi_processor] [ 9386.365443] [] syscore_resume+0x9a/0xe0 [ 9386.365445] [] suspend_devices_and_enter+0x402/0x470 [ 9386.365447] [] pm_suspend+0x178/0x260 On xen_acpi_processor_resume() we call various procedures, which are non atomic and can enable interrupts. To prevent the issue introduce separate resume notify called after we enable interrupts on resume and before we call other drivers resume callbacks. Signed-off-by: Stanislaw Gruszka Signed-off-by: Konrad Rzeszutek Wilk

xen: add support for MSI message groups

2014-03-18T14:40:09+00:00

Add support for MSI message groups for Xen Dom0 using the MAP_PIRQ_TYPE_MULTI_MSI pirq map type. In order to keep track of which pirq is the first one in the group all pirqs in the MSI group except for the first one have the newly introduced PIRQ_MSI_GROUP flag set. This prevents calling PHYSDEVOP_unmap_pirq on them, since the unmap must be done with the first pirq in the group. Signed-off-by: Roger Pau Monné Signed-off-by: David Vrabel Cc: Boris Ostrovsky

xen/xenbus: remove unused xenbus_bind_evtchn()

2014-02-28T20:26:23+00:00

xenbus_bind_evtchn() has no callers so remove it. Signed-off-by: David Vrabel Signed-off-by: Konrad Rzeszutek Wilk Reviewed-by: Boris Ostrovsky

xen/events: remove the unused resend_irq_on_evtchn()

2014-02-28T20:26:16+00:00

resend_irq_on_evtchn() was only used by ia64 (which no longer has Xen support). Signed-off-by: David Vrabel Signed-off-by: Konrad Rzeszutek Wilk Reviewed-by: Boris Ostrovsky

Merge branch 'for-linus' of git://git.kernel.dk/linux-block

2014-02-14T18:45:18+00:00

Pull block IO fixes from Jens Axboe: "Second round of updates and fixes for 3.14-rc2. Most of this stuff has been queued up for a while. The notable exception is the blk-mq changes, which are naturally a bit more in flux still. The pull request contains: - Two bug fixes for the new immutable vecs, causing crashes with raid or swap. From Kent. - Various blk-mq tweaks and fixes from Christoph. A fix for integrity bio's from Nic. - A few bcache fixes from Kent and Darrick Wong. - xen-blk{front,back} fixes from David Vrabel, Matt Rushton, Nicolas Swenson, and Roger Pau Monne. - Fix for a vec miscount with integrity vectors from Martin. - Minor annotations or fixes from Masanari Iida and Rashika Kheria. - Tweak to null_blk to do more normal FIFO processing of requests from Shlomo Pongratz. - Elevator switching bypass fix from Tejun. - Softlockup in blkdev_issue_discard() fix when !CONFIG_PREEMPT from me" * 'for-linus' of git://git.kernel.dk/linux-block: (31 commits) block: add cond_resched() to potentially long running ioctl discard loop xen-blkback: init persistent_purge_work work_struct blk-mq: pair blk_mq_start_request / blk_mq_requeue_request blk-mq: dont assume rq->errors is set when returning an error from ->queue_rq block: Fix cloning of discard/write same bios block: Fix type mismatch in ssize_t_blk_mq_tag_sysfs_show blk-mq: rework flush sequencing logic null_blk: use blk_complete_request and blk_mq_complete_request virtio_blk: use blk_mq_complete_request blk-mq: rework I/O completions fs: Add prototype declaration to appropriate header file include/linux/bio.h fs: Mark function as static in fs/bio-integrity.c block/null_blk: Fix completion processing from LIFO to FIFO block: Explicitly handle discard/write same segments block: Fix nr_vecs for inline integrity vectors blk-mq: Add bio_integrity setup to blk_mq_make_request blk-mq: initialize sg_reserved_size blk-mq: handle dma_drain_size blk-mq: divert __blk_put_request for MQ ops blk-mq: support at_head inserations for blk_execute_rq ...

Merge tag 'stable/for-linus-3.14-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

2014-02-12T20:28:05+00:00

Pull Xen bugfixes from Konrad Rzeszutek Wilk: "This has an healthy amount of code being removed - which we do not use anymore (the only user of it was ia64 Xen which had been removed already). The other bug-fixes are to make Xen ARM be able to use the new event channel mechanism and proper export of header files to user-space. Summary: - Fix ARM and Xen FIFO not working. - Remove more Xen ia64 vestigates. - Fix UAPI missing Xen files" * tag 'stable/for-linus-3.14-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: ia64/xen: Remove Xen support for ia64 even more xen: install xen/gntdev.h and xen/gntalloc.h xen/events: bind all new interdomain events to VCPU0

ia64/xen: Remove Xen support for ia64 even more

2014-02-11T15:12:37+00:00

Commit d52eefb47d4e ("ia64/xen: Remove Xen support for ia64") removed the Kconfig symbol XEN_XENCOMM. But it didn't remove the code depending on that symbol. Remove that code now. Signed-off-by: Paul Bolle Acked-by: David Vrabel Signed-off-by: Konrad Rzeszutek Wilk

xen: install xen/gntdev.h and xen/gntalloc.h

2014-02-11T15:12:36+00:00

xen/gntdev.h and xen/gntalloc.h both provide userspace ABIs so they should be installed. CC: stable@vger.kernel.org Signed-off-by: David Vrabel Signed-off-by: Konrad Rzeszutek Wilk

Merge branch 'stable/for-jens-3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip into for-linus

2014-02-10T19:52:34+00:00

Konrad writes: Please git pull the following branch: git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip.git stable/for-jens-3.14 which is based off v3.13-rc6. If you would like me to rebase it on a different branch/tag I would be more than happy to do so. The patches are all bug-fixes and hopefully can go in 3.14. They deal with xen-blkback shutdown and cause memory leaks as well as shutdown races. They should go to stable tree and if you are OK with I will ask them to backport those fixes. There is also a fix to xen-blkfront to deal with unexpected state transition. And lastly a fix to the header where it was using the __aligned__ unnecessarily.

xen-blkif: drop struct blkif_request_segment_aligned

2014-02-07T18:03:53+00:00

This was wrongly introduced in commit 402b27f9, the only difference between blkif_request_segment_aligned and blkif_request_segment is that the former has a named padding, while both share the same memory layout. Also correct a few minor glitches in the description, including for it to no longer assume PAGE_SIZE == 4096. Signed-off-by: Roger Pau Monné [Description fix by Jan Beulich] Signed-off-by: Jan Beulich Reported-by: Jan Beulich Cc: Konrad Rzeszutek Wilk Cc: David Vrabel Cc: Boris Ostrovsky Tested-by: Matt Rushton Cc: Matt Wilson Signed-off-by: Konrad Rzeszutek Wilk