summaryrefslogtreecommitdiffstats
path: root/include/linux
Commit message (Collapse)AuthorAgeFilesLines
* iommu/vt-d: Use plain writeq() for dmar_writeq() where availableDavid Woodhouse2015-10-131-8/+6
| | | | Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* Merge branch 'strscpy' of ↵Linus Torvalds2015-10-041-0/+3
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile Pull strscpy string copy function implementation from Chris Metcalf. Chris sent this during the merge window, but I waffled back and forth on the pull request, which is why it's going in only now. The new "strscpy()" function is definitely easier to use and more secure than either strncpy() or strlcpy(), both of which are horrible nasty interfaces that have serious and irredeemable problems. strncpy() has a useless return value, and doesn't NUL-terminate an overlong result. To make matters worse, it pads a short result with zeroes, which is a performance disaster if you have big buffers. strlcpy(), by contrast, is a mis-designed "fix" for strlcpy(), lacking the insane NUL padding, but having a differently broken return value which returns the original length of the source string. Which means that it will read characters past the count from the source buffer, and you have to trust the source to be properly terminated. It also makes error handling fragile, since the test for overflow is unnecessarily subtle. strscpy() avoids both these problems, guaranteeing the NUL termination (but not excessive padding) if the destination size wasn't zero, and making the overflow condition very obvious by returning -E2BIG. It also doesn't read past the size of the source, and can thus be used for untrusted source data too. So why did I waffle about this for so long? Every time we introduce a new-and-improved interface, people start doing these interminable series of trivial conversion patches. And every time that happens, somebody does some silly mistake, and the conversion patch to the improved interface actually makes things worse. Because the patch is mindnumbing and trivial, nobody has the attention span to look at it carefully, and it's usually done over large swatches of source code which means that not every conversion gets tested. So I'm pulling the strscpy() support because it *is* a better interface. But I will refuse to pull mindless conversion patches. Use this in places where it makes sense, but don't do trivial patches to fix things that aren't actually known to be broken. * 'strscpy' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile: tile: use global strscpy() rather than private copy string: provide strscpy() Make asm/word-at-a-time.h available on all architectures
| * string: provide strscpy()Chris Metcalf2015-09-101-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The strscpy() API is intended to be used instead of strlcpy(), and instead of most uses of strncpy(). - Unlike strlcpy(), it doesn't read from memory beyond (src + size). - Unlike strlcpy() or strncpy(), the API provides an easy way to check for destination buffer overflow: an -E2BIG error return value. - The provided implementation is robust in the face of the source buffer being asynchronously changed during the copy, unlike the current implementation of strlcpy(). - Unlike strncpy(), the destination buffer will be NUL-terminated if the string in the source buffer is too long. - Also unlike strncpy(), the destination buffer will not be updated beyond the NUL termination, avoiding strncpy's behavior of zeroing the entire tail end of the destination buffer. (A memset() after the strscpy() can be used if this behavior is desired.) - The implementation should be reasonably performant on all platforms since it uses the asm/word-at-a-time.h API rather than simple byte copy. Kernel-to-kernel string copy is not considered to be performance critical in any case. Signed-off-by: Chris Metcalf <cmetcalf@ezchip.com>
* | Merge branch 'for-linus' of git://git.kernel.dk/linux-blockLinus Torvalds2015-10-022-4/+3
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull block fixes from Jens Axboe: "Another week, another round of fixes. These have been brewing for a bit and in various iterations, but I feel pretty comfortable about the quality of them. They fix real issues. The pull request is mostly blk-mq related, and the only one not fixing a real bug, is the tag iterator abstraction from Christoph. But it's pretty trivial, and we'll need it for another fix soon. Apart from the blk-mq fixes, there's an NVMe affinity fix from Keith, and a single fix for xen-blkback from Roger fixing failure to free requests on disconnect" * 'for-linus' of git://git.kernel.dk/linux-block: blk-mq: factor out a helper to iterate all tags for a request_queue blk-mq: fix racy updates of rq->errors blk-mq: fix deadlock when reading cpu_list blk-mq: avoid inserting requests before establishing new mapping blk-mq: fix q->mq_usage_counter access race blk-mq: Fix use after of free q->mq_map blk-mq: fix sysfs registration/unregistration race blk-mq: avoid setting hctx->tags->cpumask before allocation NVMe: Set affinity after allocating request queues xen/blkback: free requests on disconnection
| * | blk-mq: factor out a helper to iterate all tags for a request_queueChristoph Hellwig2015-10-011-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | And replace the blk_mq_tag_busy_iter with it - the driver use has been replaced with a new helper a while ago, and internal to the block we only need the new version. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
| * | blk-mq: fix racy updates of rq->errorsChristoph Hellwig2015-10-011-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | blk_mq_complete_request may be a no-op if the request has already been completed by others means (e.g. a timeout or cancellation), but currently drivers have to set rq->errors before calling blk_mq_complete_request, which might leave us with the wrong error value. Add an error parameter to blk_mq_complete_request so that we can defer setting rq->errors until we known we won the race to complete the request. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Jens Axboe <axboe@fb.com>
| * | blk-mq: fix sysfs registration/unregistration raceAkinobu Mita2015-09-292-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is a race between cpu hotplug handling and adding/deleting gendisk for blk-mq, where both are trying to register and unregister the same sysfs entries. null_add_dev --> blk_mq_init_queue --> blk_mq_init_allocated_queue --> add to 'all_q_list' (*) --> add_disk --> blk_register_queue --> blk_mq_register_disk (++) null_del_dev --> del_gendisk --> blk_unregister_queue --> blk_mq_unregister_disk (--) --> blk_cleanup_queue --> blk_mq_free_queue --> del from 'all_q_list' (*) blk_mq_queue_reinit --> blk_mq_sysfs_unregister (-) --> blk_mq_sysfs_register (+) While the request queue is added to 'all_q_list' (*), blk_mq_queue_reinit() can be called for the queue anytime by CPU hotplug callback. But blk_mq_sysfs_unregister (-) and blk_mq_sysfs_register (+) in blk_mq_queue_reinit must not be called before blk_mq_register_disk (++) and after blk_mq_unregister_disk (--) is finished. Because '/sys/block/*/mq/' is not exists. There has already been BLK_MQ_F_SYSFS_UP flag in hctx->flags which can be used to track these sysfs stuff, but it is only fixing this issue partially. In order to fix it completely, we just need per-queue flag instead of per-hctx flag with appropriate locking. So this introduces q->mq_sysfs_init_done which is properly protected with all_q_mutex. Also, we need to ensure that blk_mq_map_swqueue() is called with all_q_mutex is held. Since hctx->nr_ctx is reset temporarily and updated in blk_mq_map_swqueue(), so we should avoid blk_mq_register_hctx() seeing the temporary hctx->nr_ctx value in CPU hotplug handling or adding/deleting gendisk . Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Reviewed-by: Ming Lei <tom.leiming@gmail.com> Cc: Ming Lei <tom.leiming@gmail.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
* | | Merge git://git.infradead.org/intel-iommuLinus Torvalds2015-10-021-2/+2
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull IOVA fixes from David Woodhouse: "The main fix here is the first one, fixing the over-allocation of size-aligned requests. The other patches simply make the existing IOVA code available to users other than the Intel VT-d driver, with no functional change. I concede the latter really *should* have been submitted during the merge window, but since it's basically risk-free and people are waiting to build on top of it and it's my fault I didn't get it in, I (and they) would be grateful if you'd take it" * git://git.infradead.org/intel-iommu: iommu: Make the iova library a module iommu: iova: Export symbols iommu: iova: Move iova cache management to the iova library iommu/iova: Avoid over-allocating when size-aligned
| * | | iommu: iova: Move iova cache management to the iova librarySakari Ailus2015-07-281-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This is necessary to separate intel-iommu from the iova library. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | | | Merge branch 'akpm' (patches from Andrew)Linus Torvalds2015-10-012-1/+21
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Merge misc fixes from Andrew Morton: "12 fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: dmapool: fix overflow condition in pool_find_page() thermal: avoid division by zero in power allocator memcg: remove pcp_counter_lock kprobes: use _do_fork() in samples to make them work again drivers/input/joystick/Kconfig: zhenhua.c needs BITREVERSE memcg: make mem_cgroup_read_stat() unsigned memcg: fix dirty page migration dax: fix NULL pointer in __dax_pmd_fault() mm: hugetlbfs: skip shared VMAs when unmapping private pages to satisfy a fault mm/slab: fix unexpected index mapping result of kmalloc_size(INDEX_NODE+1) userfaultfd: remove kernel header include from uapi header arch/x86/include/asm/efi.h: fix build failure
| * | | | memcg: remove pcp_counter_lockGreg Thelen2015-10-011-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 733a572e66d2 ("memcg: make mem_cgroup_read_{stat|event}() iterate possible cpus instead of online") removed the last use of the per memcg pcp_counter_lock but forgot to remove the variable. Kill the vestigial variable. Signed-off-by: Greg Thelen <gthelen@google.com> Acked-by: Michal Hocko <mhocko@suse.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | | | memcg: fix dirty page migrationGreg Thelen2015-10-011-0/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The problem starts with a file backed dirty page which is charged to a memcg. Then page migration is used to move oldpage to newpage. Migration: - copies the oldpage's data to newpage - clears oldpage.PG_dirty - sets newpage.PG_dirty - uncharges oldpage from memcg - charges newpage to memcg Clearing oldpage.PG_dirty decrements the charged memcg's dirty page count. However, because newpage is not yet charged, setting newpage.PG_dirty does not increment the memcg's dirty page count. After migration completes newpage.PG_dirty is eventually cleared, often in account_page_cleaned(). At this time newpage is charged to a memcg so the memcg's dirty page count is decremented which causes underflow because the count was not previously incremented by migration. This underflow causes balance_dirty_pages() to see a very large unsigned number of dirty memcg pages which leads to aggressive throttling of buffered writes by processes in non root memcg. This issue: - can harm performance of non root memcg buffered writes. - can report too small (even negative) values in memory.stat[(total_)dirty] counters of all memcg, including the root. To avoid polluting migrate.c with #ifdef CONFIG_MEMCG checks, introduce page_memcg() and set_page_memcg() helpers. Test: 0) setup and enter limited memcg mkdir /sys/fs/cgroup/test echo 1G > /sys/fs/cgroup/test/memory.limit_in_bytes echo $$ > /sys/fs/cgroup/test/cgroup.procs 1) buffered writes baseline dd if=/dev/zero of=/data/tmp/foo bs=1M count=1k sync grep ^dirty /sys/fs/cgroup/test/memory.stat 2) buffered writes with compaction antagonist to induce migration yes 1 > /proc/sys/vm/compact_memory & rm -rf /data/tmp/foo dd if=/dev/zero of=/data/tmp/foo bs=1M count=1k kill % sync grep ^dirty /sys/fs/cgroup/test/memory.stat 3) buffered writes without antagonist, should match baseline rm -rf /data/tmp/foo dd if=/dev/zero of=/data/tmp/foo bs=1M count=1k sync grep ^dirty /sys/fs/cgroup/test/memory.stat (speed, dirty residue) unpatched patched 1) 841 MB/s 0 dirty pages 886 MB/s 0 dirty pages 2) 611 MB/s -33427456 dirty pages 793 MB/s 0 dirty pages 3) 114 MB/s -33427456 dirty pages 891 MB/s 0 dirty pages Notice that unpatched baseline performance (1) fell after migration (3): 841 -> 114 MB/s. In the patched kernel, post migration performance matches baseline. Fixes: c4843a7593a9 ("memcg: add per cgroup dirty page accounting") Signed-off-by: Greg Thelen <gthelen@google.com> Reported-by: Dave Hansen <dave.hansen@intel.com> Acked-by: Michal Hocko <mhocko@suse.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Cc: <stable@vger.kernel.org> [4.2+] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | Merge tag 'pm+acpi-4.3-rc4' of ↵Linus Torvalds2015-10-011-0/+1
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management and ACPI fixes from Rafael Wysocki: "These are fixes mostly, for a few changes made in this cycle (the intel_idle driver, the OPP library, the ACPI EC driver, turbostat) and for some issues that have just been discovered (ACPI PCI IRQ management, PCI power management documentation, turbostat), with a couple of cleanups on top of them. Specifics: - intel_idle driver fixup for the recently added Skylake chips support (Len Brown). - Operating Performance Points (OPP) library fix related to the recently added support for new DT bindings and a fix for a typo in a comment (Viresh Kumar, Stephen Boyd). - ACPI EC driver fix for a recently introduced memory leak in an error code path (Lv Zheng). - ACPI PCI IRQ management fix for the issue where an ISA IRQ is shared with a PCI device which requires it to be configured in a different way and may cause an interrupt storm to happen as a result with an extra ACPI SCI IRQ handling simplification on top of it (Jiang Liu). - Update of the PCI power management documentation that became outdated and started to actively confuse the readers to make it actually reflect the code (Rafael J Wysocki). - turbostat fixes including an IVB Xeon regression fix (related to the --debug command line option), Skylake adjustment for the TSC running at a frequency that doesn't match the base one exactly, and a Knights Landing quirk to account for the fact that it only updates APERF and MPERF every 1024 clock cycles plus bumping up the turbostat version number (Len Brown, Hubert Chrzaniuk)" * tag 'pm+acpi-4.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: tools/power turbosat: update version number tools/power turbostat: SKL: Adjust for TSC difference from base frequency tools/power turbostat: KNL workaround for %Busy and Avg_MHz tools/power turbostat: IVB Xeon: fix --debug regression ACPI / PCI: Remove duplicated penalty on SCI IRQ ACPI, PCI, irq: Do not share PCI IRQ with ISA IRQ ACPI / EC: Fix a memory leak issue in acpi_ec_query() PM / OPP: Fix typo modifcation -> modification PCI / PM: Update runtime PM documentation for PCI devices PM / OPP: of_property_count_u32_elems() can return errors intel_idle: Skylake Client Support - updated
| | \ \ \ \
| | \ \ \ \
| *-. \ \ \ \ Merge branches 'pm-pci' and 'acpi-pci'Rafael J. Wysocki2015-10-011-0/+1
| |\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * pm-pci: PCI / PM: Update runtime PM documentation for PCI devices * acpi-pci: ACPI / PCI: Remove duplicated penalty on SCI IRQ ACPI, PCI, irq: Do not share PCI IRQ with ISA IRQ
| | | * | | | | ACPI, PCI, irq: Do not share PCI IRQ with ISA IRQJiang Liu2015-09-261-0/+1
| | |/ / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Avoid IRQs occupied by ISA IRQs when allocating IRQs for PCI link devices, otherwise it may cause interrupt storm due to incompatible pin attributes. This issue was triggered on a KVM virtual machine, which 1) uses IRQ9 for SCI in high level mode. 2) defines an PCI interrupt link device (LNKS) with IRQ9 as the only possible irq. 3) has an PCI device referring to link device LNKS. So it causes interrupt storm when enabling the PCI device because PCI IRQ works in low level mode. Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* | | | | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds2015-10-011-1/+1
|\ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull networking fixes from David Miller: 1) Fix regression in SKB partial checksum handling, from Pravin B Shalar. 2) Fix VLAN inside of VXLAN handling in i40e driver, from Jesse Brandeburg. 3) Cure softlockups during accept() in SCTP, from Karl Heiss. 4) MSG_PEEK should return multiple SKBs worth of data in AF_UNIX, from Aaron Conole. 5) IPV6 erroneously ignores output interface specifier in lookup key for route lookups, fix from David Ahern. 6) In Marvell DSA driver, forward unknown frames to CPU port, from Andrew Lunn. 7) Mission flow flag initializations in some code paths, from David Ahern. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: net: Initialize flow flags in input path net: dsa: fix preparation of a port STP update testptp: Silence compiler warnings on ppc64 net/mlx4: Handle return codes in mlx4_qp_attach_common dsa: mv88e6xxx: Enable forwarding for unknown to the CPU port skbuff: Fix skb checksum partial check. net: ipv6: Add RT6_LOOKUP_F_IFACE flag if oif is set net sysfs: Print link speed as signed integer bna: fix error handling af_unix: return data from multiple SKBs on recv() with MSG_PEEK flag af_unix: Convert the unix_sk macro to an inline function for type safety net: sctp: Don't use 64 kilobyte lookup table for four elements l2tp: protect tunnel->del_work by ref_count net/ibm/emac: bump version numbers for correct work with ethtool sctp: Prevent soft lockup when sctp_accept() is called during a timeout event sctp: Whitespace fix i40e/i40evf: check for stopped admin queue i40e: fix VLAN inside VXLAN r8169: fix handling rtl_readphy result net: hisilicon: fix handling platform_get_irq result
| * | | | | | | skbuff: Fix skb checksum partial check.Pravin B Shelar2015-09-291-1/+1
| |/ / / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Earlier patch 6ae459bda tried to detect void ckecksum partial skb by comparing pull length to checksum offset. But it does not work for all cases since checksum-offset depends on updates to skb->data. Following patch fixes it by validating checksum start offset after skb-data pointer is updated. Negative value of checksum offset start means there is no need to checksum. Fixes: 6ae459bda ("skbuff: Fix skb checksum flag on skb pull") Reported-by: Andrew Vagin <avagin@odin.com> Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | | | | Merge tag 'for-linus' of ↵Linus Torvalds2015-10-012-12/+0
|\ \ \ \ \ \ \ | |_|_|/ / / / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma Pull rdma fixes from Doug Ledford: - Fixes for mlx5 related issues - Fixes for ipoib multicast handling * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: IB/ipoib: increase the max mcast backlog queue IB/ipoib: Make sendonly multicast joins create the mcast group IB/ipoib: Expire sendonly multicast joins IB/mlx5: Remove pa_lkey usages IB/mlx5: Remove support for IB_DEVICE_LOCAL_DMA_LKEY IB/iser: Add module parameter for always register memory xprtrdma: Replace global lkey with lkey local to PD
| * | | | | | IB/mlx5: Remove support for IB_DEVICE_LOCAL_DMA_LKEYSagi Grimberg2015-09-252-12/+0
| | |/ / / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 96249d70dd70 ("IB/core: Guarantee that a local_dma_lkey is available") allows ULPs that make use of the local dma key to keep working as before by allocating a DMA MR with local permissions and converted these consumers to use the MR associated with the PD rather then device->local_dma_lkey. ConnectIB has some known issues with memory registration using the local_dma_lkey (SEND, RDMA, RECV seems to work ok). Thus don't expose support for it (remove device->local_dma_lkey setting), and take advantage of the above commit such that no regression is introduced to working systems. The local_dma_lkey support will be restored in CX4 depending on FW capability query. Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* | | | | | Merge branch 'for-mingo' of ↵Ingo Molnar2015-09-281-6/+5
|\ \ \ \ \ \ | |_|/ / / / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/urgent Pull RCU fixes from Paul E. McKenney, for two regressions introduced in this merge window: - Fix bug with recent GCCs. - Fix false positive lockdep splat. Signed-off-by: Ingo Molnar <mingo@kernel.org>
| * | | | | rcu: Change _wait_rcu_gp() to work around GCC bug 67055Oleg Nesterov2015-09-201-6/+5
| |/ / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Code like this in inline functions confuses some recent versions of gcc: const int n = const-expr; whatever_t array[n]; For more details, see: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67055#c13 This compiler bug results in the following failure after 114b7fd4b (rcu: Create rcu_sync infrastructure): In file included from include/linux/rcupdate.h:429:0, from include/linux/rcu_sync.h:5, from kernel/rcu/sync.c:1: include/linux/rcutiny.h: In function 'rcu_barrier_sched': include/linux/rcutiny.h:55:20: internal compiler error: Segmentation fault static inline void rcu_barrier_sched(void) This commit therefore eliminates the constant local variable in favor of direct use of the expression. Reported-and-tested-by: Mark Salter <msalter@redhat.com> Reported-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
* | | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds2015-09-263-4/+12
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull networking fixes from David Miller: 1) When we run a tap on netlink sockets, we have to copy mmap'd SKBs instead of cloning them. From Daniel Borkmann. 2) When converting classical BPF into eBPF, fix the setting of the source reg to BPF_REG_X. From Tycho Andersen. 3) Fix igmpv3/mldv2 report parsing in the bridge multicast code, from Linus Lussing. 4) Fix dst refcounting for ipv6 tunnels, from Martin KaFai Lau. 5) Set NLM_F_REPLACE flag properly when replacing ipv6 routes, from Roopa Prabhu. 6) Add some new cxgb4 PCI device IDs, from Hariprasad Shenai. 7) Fix headroom tests and SKB leaks in ipv6 fragmentation code, from Florian Westphal. 8) Check DMA mapping errors in bna driver, from Ivan Vecera. 9) Several 8139cp bug fixes (dev_kfree_skb_any in interrupt context, misclearing of interrupt status in TX timeout handler, etc.) from David Woodhouse. 10) In tipc, reset SKB header pointer after skb_linearize(), from Erik Hugne. 11) Fix autobind races et al. in netlink code, from Herbert Xu with help from Tejun Heo and others. 12) Missing SET_NETDEV_DEV in sunvnet driver, from Sowmini Varadhan. 13) Fix various races in timewait timer and reqsk_queue_hadh_req, from Eric Dumazet. 14) Fix array overruns in mac80211, from Johannes Berg and Dan Carpenter. 15) Fix data race in rhashtable_rehash_one(), from Dmitriy Vyukov. 16) Fix race between poll_one_napi and napi_disable, from Neil Horman. 17) Fix byte order in geneve tunnel port config, from John W Linville. 18) Fix handling of ARP replies over lightweight tunnels, from Jiri Benc. 19) We can loop when fib rule dumps cross multiple SKBs, fix from Wilson Kok and Roopa Prabhu. 20) Several reference count handling bug fixes in the PHY/MDIO layer from Russel King. 21) Fix lockdep splat in ppp_dev_uninit(), from Guillaume Nault. 22) Fix crash in icmp_route_lookup(), from David Ahern. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (116 commits) net: Fix panic in icmp_route_lookup net: update docbook comment for __mdiobus_register() ppp: fix lockdep splat in ppp_dev_uninit() net: via/Kconfig: GENERIC_PCI_IOMAP required if PCI not selected phy: marvell: add link partner advertised modes net: fix net_device refcounting phy: add phy_device_remove() phy: fixed-phy: properly validate phy in fixed_phy_update_state() net: fix phy refcounting in a bunch of drivers of_mdio: fix MDIO phy device refcounting phy: add proper phy struct device refcounting phy: fix mdiobus module safety net: dsa: fix of_mdio_find_bus() device refcount leak phy: fix of_mdio_find_bus() device refcount leak ip6_tunnel: Reduce log level in ip6_tnl_err() to debug ip6_gre: Reduce log level in ip6gre_err() to debug fib_rules: fix fib rule dumps across multiple skbs bnx2x: byte swap rss_key to comply to Toeplitz specs net: revert "net_sched: move tp->root allocation into fw_init()" lwtunnel: remove source and destination UDP port config option ...
| * | | | | phy: add phy_device_remove()Russell King2015-09-241-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a phy_device_remove() function to complement phy_device_register(), which undoes the effects of phy_device_register() by removing the phy device from visibility, but not freeing it. This allows these details to be moved out of the mdio bus code into the phy code where this action belongs. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | phy: fix mdiobus module safetyRussell King2015-09-241-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Re-implement the mdiobus module refcounting to ensure that we actually ensure that the mdiobus module code does not go away while we might call into it. The old scheme using bus->dev.driver was buggy, because bus->dev is a class device which never has a struct device_driver associated with it, and hence the associated code trying to obtain a refcount did nothing useful. Instead, take the approach that other subsystems do: pass the module when calling mdiobus_register(), and record that in the mii_bus struct. When we need to increment the module use count in the phy code, use this stored pointer. When the phy is deteched, drop the module refcount, remembering that the phy device might go away at that point. This doesn't stop the mii_bus going away while there are in-use phys - it merely stops the underlying code vanishing. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | skbuff: Fix skb checksum flag on skb pullPravin B Shelar2015-09-241-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | VXLAN device can receive skb with checksum partial. But the checksum offset could be in outer header which is pulled on receive. This results in negative checksum offset for the skb. Such skb can cause the assert failure in skb_checksum_help(). Following patch fixes the bug by setting checksum-none while pulling outer header. Following is the kernel panic msg from old kernel hitting the bug. ------------[ cut here ]------------ kernel BUG at net/core/dev.c:1906! RIP: 0010:[<ffffffff81518034>] skb_checksum_help+0x144/0x150 Call Trace: <IRQ> [<ffffffffa0164c28>] queue_userspace_packet+0x408/0x470 [openvswitch] [<ffffffffa016614d>] ovs_dp_upcall+0x5d/0x60 [openvswitch] [<ffffffffa0166236>] ovs_dp_process_packet_with_key+0xe6/0x100 [openvswitch] [<ffffffffa016629b>] ovs_dp_process_received_packet+0x4b/0x80 [openvswitch] [<ffffffffa016c51a>] ovs_vport_receive+0x2a/0x30 [openvswitch] [<ffffffffa0171383>] vxlan_rcv+0x53/0x60 [openvswitch] [<ffffffffa01734cb>] vxlan_udp_encap_recv+0x8b/0xf0 [openvswitch] [<ffffffff8157addc>] udp_queue_rcv_skb+0x2dc/0x3b0 [<ffffffff8157b56f>] __udp4_lib_rcv+0x1cf/0x6c0 [<ffffffff8157ba7a>] udp_rcv+0x1a/0x20 [<ffffffff8154fdbd>] ip_local_deliver_finish+0xdd/0x280 [<ffffffff81550128>] ip_local_deliver+0x88/0x90 [<ffffffff8154fa7d>] ip_rcv_finish+0x10d/0x370 [<ffffffff81550365>] ip_rcv+0x235/0x300 [<ffffffff8151ba1d>] __netif_receive_skb+0x55d/0x620 [<ffffffff8151c360>] netif_receive_skb+0x80/0x90 [<ffffffff81459935>] virtnet_poll+0x555/0x6f0 [<ffffffff8151cd04>] net_rx_action+0x134/0x290 [<ffffffff810683d8>] __do_softirq+0xa8/0x210 [<ffffffff8162fe6c>] call_softirq+0x1c/0x30 [<ffffffff810161a5>] do_softirq+0x65/0xa0 [<ffffffff810687be>] irq_exit+0x8e/0xb0 [<ffffffff81630733>] do_IRQ+0x63/0xe0 [<ffffffff81625f2e>] common_interrupt+0x6e/0x6e Reported-by: Anupam Chanda <achanda@vmware.com> Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Acked-by: Tom Herbert <tom@herbertland.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | netpoll: Close race condition between poll_one_napi and napi_disableNeil Horman2015-09-231-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Drivers might call napi_disable while not holding the napi instance poll_lock. In those instances, its possible for a race condition to exist between poll_one_napi and napi_disable. That is to say, poll_one_napi only tests the NAPI_STATE_SCHED bit to see if there is work to do during a poll, and as such the following may happen: CPU0 CPU1 ndo_tx_timeout napi_poll_dev napi_disable poll_one_napi test_and_set_bit (ret 0) test_bit (ret 1) reset adapter napi_poll_routine If the adapter gets a tx timeout without a napi instance scheduled, its possible for the adapter to think it has exclusive access to the hardware (as the napi instance is now scheduled via the napi_disable call), while the netpoll code thinks there is simply work to do. The result is parallel hardware access leading to corrupt data structures in the driver, and a crash. Additionaly, there is another, more critical race between netpoll and napi_disable. The disabled napi state is actually identical to the scheduled state for a given napi instance. The implication being that, if a napi instance is disabled, a netconsole instance would see the napi state of the device as having been scheduled, and poll it, likely while the driver was dong something requiring exclusive access. In the case above, its fairly clear that not having the rings in a state ready to be polled will cause any number of crashes. The fix should be pretty easy. netpoll uses its own bit to indicate that that the napi instance is in a state of being serviced by netpoll (NAPI_STATE_NPSVC). We can just gate disabling on that bit as well as the sched bit. That should prevent netpoll from conducting a napi poll if we convert its set bit to a test_and_set_bit operation to provide mutual exclusion Change notes: V2) Remove a trailing whtiespace Resubmit with proper subject prefix V3) Clean up spacing nits Signed-off-by: Neil Horman <nhorman@tuxdriver.com> CC: "David S. Miller" <davem@davemloft.net> CC: jmaxwell@redhat.com Tested-by: jmaxwell@redhat.com Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | netfilter: bridge: fix routing of bridge frames with call-iptables=1Florian Westphal2015-09-141-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We can't re-use the physoutdev storage area. 1. When using NFQUEUE in PREROUTING, we attempt to bump a bogus refcnt since nf_bridge->physoutdev is garbage (ipv4/ipv6 address) 2. for same reason, we crash in physdev match in FORWARD or later if skb is routed instead of bridged. This increases nf_bridge_info to 40 bytes, but we have no other choice. Fixes: 72b1e5e4cac7 ("netfilter: bridge: reduce nf_bridge_info to 32 bytes again") Reported-by: Sander Eikelenboom <linux@eikelenboom.it> Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* | | | | | Merge branch 'for-4.3-fixes' of ↵Linus Torvalds2015-09-251-2/+9
|\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup Pull another cgroup fix from Tejun Heo: "The cgroup writeback support got inadvertently enabled for traditional hierarchies revealing two regressions which are currently being worked on. It shouldn't have been enabled on traditional hierarchies, so disable it on them. This is enough to make the regressions go away for people who aren't experimenting with cgroup" * 'for-4.3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: cgroup, writeback: don't enable cgroup writeback on traditional hierarchies
| * | | | | | cgroup, writeback: don't enable cgroup writeback on traditional hierarchiesTejun Heo2015-09-241-2/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | inode_cgwb_enabled() gates cgroup writeback support. If it returns true, each inode is attached to the corresponding memory domain which gets mapped to io domain. It currently only tests whether the filesystem and bdi support cgroup writeback; however, cgroup writeback support doesn't work on traditional hierarchies and thus it should also test whether memcg and iocg are on the default hierarchy. This caused traditional hierarchy setups to hit the cgroup writeback path inadvertently and ended up creating separate writeback domains for each memcg and mapping them all to the root iocg uncovering a couple issues in the cgroup writeback path. cgroup writeback was never meant to be enabled on traditional hierarchies. Make inode_cgwb_enabled() test whether both memcg and iocg are on the default hierarchy. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: Artem Bityutskiy <dedekind1@gmail.com> Reported-by: Dexuan Cui <decui@microsoft.com> Link: http://lkml.kernel.org/g/1443012552.19983.209.camel@gmail.com Link: http://lkml.kernel.org/g/f30d4a6aa8a546ff88f73021d026a453@SIXPR30MB031.064d.mgd.msft.net
* | | | | | | Merge tag 'nfs-for-4.3-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfsLinus Torvalds2015-09-251-0/+3
|\ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull NFS client bugfixes from Trond Myklebust: "Highlights include: Stable patches: - fix v4.2 SEEK on files over 2 gigs - Fix a layout segment reference leak when pNFS I/O falls back to inband I/O. - Fix recovery of recalled read delegations Bugfixes: - Fix a case where NFSv4 fails to send CLOSE after a server reboot - Fix sunrpc to wait for connections to complete before retrying - Fix sunrpc races between transport connect/disconnect and shutdown - Fix an infinite loop when layoutget fail with BAD_STATEID - nfs/filelayout: Fix NULL reference caused by double freeing of fh_array - Fix a bogus WARN_ON_ONCE() in O_DIRECT when layout commit_through_mds is set - Fix layoutreturn/close ordering issues" * tag 'nfs-for-4.3-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: NFS41: make close wait for layoutreturn NFS: Skip checking ds_cinfo.buckets when lseg's commit_through_mds is set NFSv4.x/pnfs: Don't try to recover stateids twice in layoutget NFSv4: Recovery of recalled read delegations is broken NFS: Fix an infinite loop when layoutget fail with BAD_STATEID NFS: Do cleanup before resetting pageio read/write to mds SUNRPC: xs_sock_mark_closed() does not need to trigger socket autoclose SUNRPC: Lock the transport layer on shutdown nfs/filelayout: Fix NULL reference caused by double freeing of fh_array SUNRPC: Ensure that we wait for connections to complete before retrying SUNRPC: drop null test before destroy functions nfs: fix v4.2 SEEK on files over 2 gigs SUNRPC: Fix races between socket connection and destroy code nfs: fix pg_test page count calculation Failing to send a CLOSE if file is opened WRONLY and server reboots on a 4.x mount
| * | | | | | | SUNRPC: Ensure that we wait for connections to complete before retryingTrond Myklebust2015-09-171-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 718ba5b87343, moved the responsibility for unlocking the socket to xs_tcp_setup_socket, meaning that the socket will be unlocked before we know that it has finished trying to connect. The following patch is based on an initial patch by Russell King to ensure that we delay clearing the XPRT_CONNECTING flag until we either know that we failed to initiate a connection attempt, or the connection attempt itself failed. Fixes: 718ba5b87343 ("SUNRPC: Add helpers to prevent socket create from racing") Reported-by: Russell King <linux@arm.linux.org.uk> Reported-by: Russell King <rmk+kernel@arm.linux.org.uk> Tested-by: Russell King <rmk+kernel@arm.linux.org.uk> Tested-by: Benjamin Coddington <bcodding@redhat.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
* | | | | | | | Merge branch 'next' of ↵Linus Torvalds2015-09-241-1/+7
|\ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux Pull thermal management fixes from Zhang Rui: - Power allocator governor changes to allow binding on thermal zones with missing power estimates information. From Javi Merino. - Add compile test flags on thermal drivers that allow it without producing compilation errors. From Eduardo Valentin. - Fixes around memory allocation on cpu_cooling. From Javi Merino. - Fix on db8500 cpufreq code to allow autoload. From Luis de Bethencourt. - Maintainer entries for cpu cooling device * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: thermal: power_allocator: exit early if there are no cooling devices thermal: power_allocator: don't require tzp to be present for the thermal zone thermal: power_allocator: relax the requirement of two passive trip points thermal: power_allocator: relax the requirement of a sustainable_power in tzp thermal: Add a function to get the minimum power thermal: cpu_cooling: free power table on error or when unregistering thermal: cpu_cooling: don't call kcalloc() under rcu_read_lock thermal: db8500_cpufreq_cooling: Fix module autoload for OF platform driver thermal: cpu_cooling: Add MAINTAINERS entry thermal: ti-soc: Kconfig fix to avoid menu showing wrongly thermal: ti-soc: allow compile test thermal: qcom_spmi: allow compile test thermal: exynos: allow compile test thermal: armada: allow compile test thermal: dove: allow compile test thermal: kirkwood: allow compile test thermal: rockchip: allow compile test thermal: spear: allow compile test thermal: hisi: allow compile test thermal: Fix thermal_zone_of_sensor_register to match documentation
| * | | | | | | | thermal: Add a function to get the minimum powerJavi Merino2015-09-141-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The thermal core already has a function to get the maximum power of a cooling device: power_actor_get_max_power(). Add a function to get the minimum power of a cooling device. Cc: Zhang Rui <rui.zhang@intel.com> Cc: Eduardo Valentin <edubezval@gmail.com> Reviewed-by: Daniel Kurtz <djkurtz@chromium.org> Signed-off-by: Javi Merino <javi.merino@arm.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
| * | | | | | | | thermal: Fix thermal_zone_of_sensor_register to match documentationPunit Agrawal2015-09-131-1/+1
| |/ / / / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | thermal_zone_of_sensor_register is documented as returning a pointer to either a valid thermal_zone_device on success, or a corresponding ERR_PTR() value. In contrast, the function returns NULL when THERMAL_OF is configured off. Fix this. Signed-off-by: Punit Agrawal <punit.agrawal@arm.com> Acked-by: Guenter Roeck <linux@roeck-us.net> Cc: Eduardo Valentin <edubezval@gmail.com> Cc: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
* | | | | | | | Merge branch 'akpm' (patches from Andrew)Linus Torvalds2015-09-241-3/+2
|\ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Merge misc fixes from Andrew Morton: "15 fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: ocfs2/dlm: fix deadlock when dispatch assert master membarrier: clean up selftest vmscan: fix sane_reclaim helper for legacy memcg lib/iommu-common.c: do not try to deref a null iommu->lazy_flush() pointer when n < pool->hint x86, efi, kasan: #undef memset/memcpy/memmove per arch mm: migrate: hugetlb: putback destination hugepage to active list mm, dax: VMA with vm_ops->pfn_mkwrite wants to be write-notified userfaultfd: register uapi generic syscall (aarch64) userfaultfd: selftest: don't error out if pthread_mutex_t isn't identical userfaultfd: selftest: return an error if BOUNCE_VERIFY fails userfaultfd: selftest: avoid my_bcmp false positives with powerpc userfaultfd: selftest: only warn if __NR_userfaultfd is undefined userfaultfd: selftest: headers fixup userfaultfd: selftests: vm: pick up sanitized kernel headers userfaultfd: revert "userfaultfd: waitqueue: add nr wake parameter to __wake_up_locked_key"
| * | | | | | | | userfaultfd: revert "userfaultfd: waitqueue: add nr wake parameter to ↵Andrea Arcangeli2015-09-221-3/+2
| | |_|_|_|_|/ / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | __wake_up_locked_key" This reverts commit 51360155eccb907ff8635bd10fc7de876408c2e0 and adapts fs/userfaultfd.c to use the old version of that function. It didn't look robust to call __wake_up_common with "nr == 1" when we absolutely require wakeall semantics, but we've full control of what we insert in the two waitqueue heads of the blocked userfaults. No exclusive waitqueue risks to be inserted into those two waitqueue heads so we can as well stick to "nr == 1" of the old code and we can rely purely on the fact no waitqueue inserted in one of the two waitqueue heads we must enforce as wakeall, has wait->flags WQ_FLAG_EXCLUSIVE set. Signed-off-by: Andrea Arcangeli <aarcange@redhat.com> Cc: Dr. David Alan Gilbert <dgilbert@redhat.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Shuah Khan <shuahkh@osg.samsung.com> Cc: Thierry Reding <treding@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | | | | Merge tag 'spi-fix-v4.3-rc2' of ↵Linus Torvalds2015-09-241-1/+1
|\ \ \ \ \ \ \ \ | |/ / / / / / / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi Pull spi fixes from Mark Brown: "A disappointingly large collection of fixes for SPI issues, though almost all in drivers (and there mainly the newly added Mediatek driver) and the core fixes are documentation and error handling. The driver fixes are all of the usual 'important if you see them' variety" * tag 'spi-fix-v4.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: spi: xtensa-xtfpga: fix register endianness spi: meson: Fix module autoload for OF platform driver spi: mediatek: fix wrong error return value on probe spi: fix kernel-doc warnings in spi.h spi: spidev: fix possible NULL dereference spi: atmel: remove warning when !CONFIG_PM_SLEEP spi: bcm2835: BUG: fix wrong use of PAGE_MASK spi: mediatek: fix spi cs polarity error spi: Fix documentation of spi_alloc_master() spi: spi-pxa2xx: Check status register to determine if SSSR_TINT is disabled spi: Mediatek: Document devicetree bindings update for spi bus spi: mediatek: fix spi clock usage error spi: mediatek: remove clk_disable_unprepare()
| | | | | | | |
| | \ \ \ \ \ \
| | \ \ \ \ \ \
| | \ \ \ \ \ \
| | \ \ \ \ \ \
| | \ \ \ \ \ \
| | \ \ \ \ \ \
| | \ \ \ \ \ \
| *-------. \ \ \ \ \ \ Merge remote-tracking branches 'spi/fix/atmel', 'spi/fix/bcm2835', ↵Mark Brown2015-09-221-1/+1
| |\ \ \ \ \ \ \ \ \ \ \ | | | | | | |/ / / / / / | | | | | |/| | | / / / | | |_|_|_|_|_|_|/ / / | |/| | | | | | | | / | | | |_|_|_|_|_|_|/ | | |/| | | | | | | 'spi/fix/doc', 'spi/fix/mediatek', 'spi/fix/meson', 'spi/fix/mtk' and 'spi/fix/pxa2xx' into spi-linus
| | | * | | | | | | spi: fix kernel-doc warnings in spi.hGeliang Tang2015-09-161-1/+1
| | | | |/ / / / / | | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix the following 'make htmldocs' warnings: .//include/linux/spi/spi.h:71: warning: No description found for parameter 'lock' .//include/linux/spi/spi.h:71: warning: Excess struct/union/enum/typedef member 'clock' description in 'spi_statistics' Signed-off-by: Geliang Tang <geliangtang@163.com> Signed-off-by: Mark Brown <broonie@kernel.org>
* | | | | | | | | Merge branch 'for-4.3-fixes' of ↵Linus Torvalds2015-09-213-25/+22
|\ \ \ \ \ \ \ \ \ | | |_|_|_|_|/ / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup Pull cgroup fixes from Tejun Heo: "The threadgroup locking changes which went in during 4.2 devel cycle added write locking of a percpu_rwsem in cgroup task migration path; unfortunately, that involved expedited rcu syncing which turned out to be too slow and heavy for certain workloads. The patchset which is dependent on this one didn't get committed during that devel cycle, so these two patches can be reverted safely. Oleg reworked percpu_rwsem for 4.4 so that the writer path is a lot lighter. The reported issue goes away with Oleg's reworked percpu_rwsem and I'll reapply these patches on the for-4.4 branch so that they can land together with Oleg's changes" * 'for-4.3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: Revert "sched, cgroup: replace signal_struct->group_rwsem with a global percpu_rwsem" Revert "cgroup: simplify threadgroup locking"
| * | | | | | | | Revert "sched, cgroup: replace signal_struct->group_rwsem with a global ↵Tejun Heo2015-09-163-25/+22
| | |_|/ / / / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | percpu_rwsem" This reverts commit d59cfc09c32a2ae31f1c3bc2983a0cd79afb3f14. d59cfc09c32a ("sched, cgroup: replace signal_struct->group_rwsem with a global percpu_rwsem") and b5ba75b5fc0e ("cgroup: simplify threadgroup locking") changed how cgroup synchronizes against task fork and exits so that it uses global percpu_rwsem instead of per-process rwsem; unfortunately, the write [un]lock paths of percpu_rwsem always involve synchronize_rcu_expedited() which turned out to be too expensive. Improvements for percpu_rwsem are scheduled to be merged in the coming v4.4-rc1 merge window which alleviates this issue. For now, revert the two commits to restore per-process rwsem. They will be re-applied for the v4.4-rc1 merge window. Signed-off-by: Tejun Heo <tj@kernel.org> Link: http://lkml.kernel.org/g/55F8097A.7000206@de.ibm.com Reported-by: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: stable@vger.kernel.org # v4.2+
* | | | | | | | security: fix typo in security_task_prctlJann Horn2015-09-201-1/+1
| |/ / / / / / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Jann Horn <jann@thejh.net> Reviewed-by: Andy Lutomirski <luto@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | | | Merge tag 'pm+acpi-4.3-rc2' of ↵Linus Torvalds2015-09-192-1/+28
|\ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management and ACPI updates from Rafael Wysocki: "Included are: a somewhat late devfreq update which however is mostly fixes and cleanups with one new thing only (the PPMUv2 support on Exynos5433), an ACPI cpufreq driver fixup and two ACPI core cleanups related to preprocessor directives. Specifics: - Fix a memory allocation size in the devfreq core (Xiaolong Ye). - Fix a mistake in the exynos-ppmu DT binding (Javier Martinez Canillas). - Add support for PPMUv2 ((Platform Performance Monitoring Unit version 2.0) on the Exynos5433 SoCs (Chanwoo Choi). - Fix a type casting bug in the Exynos PPMU code (MyungJoo Ham). - Assorted devfreq code cleanups and optimizations (Javi Merino, MyungJoo Ham, Viresh Kumar). - Fix up the ACPI cpufreq driver to use a more lightweight way to get to its private data in the ->get() callback (Rafael J Wysocki). - Fix a CONFIG_ prefix bug in one of the ACPI drivers and make the ACPI subsystem use IS_ENABLED() instead of #ifdefs in function bodies (Sudeep Holla)" * tag 'pm+acpi-4.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: cpufreq: acpi-cpufreq: Use cpufreq_cpu_get_raw() in ->get() ACPI: Eliminate CONFIG_.*{, _MODULE} #ifdef in favor of IS_ENABLED() ACPI: int340x_thermal: add missing CONFIG_ prefix PM / devfreq: Fix incorrect type issue. PM / devfreq: tegra: Update governor to use devfreq_update_stats() PM / devfreq: comments for get_dev_status usage updated PM / devfreq: drop comment about thermal setting max_freq PM / devfreq: cache the last call to get_dev_status() PM / devfreq: Drop unlikely before IS_ERR(_OR_NULL) PM / devfreq: exynos-ppmu: bit-wise operation bugfix. PM / devfreq: exynos-ppmu: Update documentation to support PPMUv2 PM / devfreq: exynos-ppmu: Add the support of PPMUv2 for Exynos5433 PM / devfreq: event: Remove incorrect property in exynos-ppmu DT binding
| | \ \ \ \ \ \
| | \ \ \ \ \ \
| *-. \ \ \ \ \ \ Merge branches 'pm-cpufreq' and 'pm-devfreq'Rafael J. Wysocki2015-09-182-1/+28
| |\ \ \ \ \ \ \ \ | | |_|/ / / / / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * pm-cpufreq: cpufreq: acpi-cpufreq: Use cpufreq_cpu_get_raw() in ->get() * pm-devfreq: PM / devfreq: Fix incorrect type issue. PM / devfreq: tegra: Update governor to use devfreq_update_stats() PM / devfreq: comments for get_dev_status usage updated PM / devfreq: drop comment about thermal setting max_freq PM / devfreq: cache the last call to get_dev_status() PM / devfreq: Drop unlikely before IS_ERR(_OR_NULL) PM / devfreq: exynos-ppmu: bit-wise operation bugfix. PM / devfreq: exynos-ppmu: Update documentation to support PPMUv2 PM / devfreq: exynos-ppmu: Add the support of PPMUv2 for Exynos5433 PM / devfreq: event: Remove incorrect property in exynos-ppmu DT binding
| | | * | | | | | Merge branch 'for-rafael' of ↵Rafael J. Wysocki2015-09-151-1/+23
| | |/| | | | | | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | https://git.kernel.org/pub/scm/linux/kernel/git/mzx/devfreq into pm-devfreq Pull devfreq updates for v4.3 from MyungJoo Ham. * 'for-rafael' of https://git.kernel.org/pub/scm/linux/kernel/git/mzx/devfreq: PM / devfreq: Fix incorrect type issue. PM / devfreq: tegra: Update governor to use devfreq_update_stats() PM / devfreq: comments for get_dev_status usage updated PM / devfreq: drop comment about thermal setting max_freq PM / devfreq: cache the last call to get_dev_status() PM / devfreq: Drop unlikely before IS_ERR(_OR_NULL) PM / devfreq: exynos-ppmu: bit-wise operation bugfix. PM / devfreq: exynos-ppmu: Update documentation to support PPMUv2 PM / devfreq: exynos-ppmu: Add the support of PPMUv2 for Exynos5433 PM / devfreq: event: Remove incorrect property in exynos-ppmu DT binding Conflicts: drivers/devfreq/event/exynos-ppmu.c
| | | * | | | | | PM / devfreq: comments for get_dev_status usage updatedMyungJoo Ham2015-09-111-1/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With the introduction of devfreq_update_stats(), governors are not recommended to use get_dev_status() directly. Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
| | | * | | | | | PM / devfreq: cache the last call to get_dev_status()Javi Merino2015-09-111-0/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The return value of get_dev_status() can be reused. Cache it so that other parts of the kernel can reuse it instead of having to call the same function again. Cc: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Javi Merino <javi.merino@arm.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
| | * | | | | | | cpufreq: acpi-cpufreq: Use cpufreq_cpu_get_raw() in ->get()Rafael J. Wysocki2015-09-161-0/+5
| |/ / / / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | cpufreq_cpu_get() called by get_cur_freq_on_cpu() is overkill, because the ->get() callback is always invoked in a context in which all of the conditions checked by cpufreq_cpu_get() are guaranteed to be satisfied. Use cpufreq_cpu_get_raw() instead of it and drop the corresponding cpufreq_cpu_put() from get_cur_freq_on_cpu(). Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
* | | | | | | | Merge branch 'for-linus' of git://git.kernel.dk/linux-blockLinus Torvalds2015-09-191-0/+50
|\ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull block updates from Jens Axboe: "This is a bit bigger than it should be, but I could (did) not want to send it off last week due to both wanting extra testing, and expecting a fix for the bounce regression as well. In any case, this contains: - Fix for the blk-merge.c compilation warning on gcc 5.x from me. - A set of back/front SG gap merge fixes, from me and from Sagi. This ensures that we honor SG gapping for integrity payloads as well. - Two small fixes for null_blk from Matias, fixing a leak and a capacity propagation issue. - A blkcg fix from Tejun, fixing a NULL dereference. - A fast clone optimization from Ming, fixing a performance regression since the arbitrarily sized bio's were introduced. - Also from Ming, a regression fix for bouncing IOs" * 'for-linus' of git://git.kernel.dk/linux-block: block: fix bounce_end_io block: blk-merge: fast-clone bio when splitting rw bios block: blkg_destroy_all() should clear q->root_blkg and ->root_rl.blkg block: Copy a user iovec if it includes gaps block: Refuse adding appending a gapped integrity page to a bio block: Refuse request/bio merges with gaps in the integrity payload block: Check for gaps on front and back merges null_blk: fix wrong capacity when bs is not 512 bytes null_blk: fix memory leak on cleanup block: fix bogus compiler warnings in blk-merge.c
| * | | | | | | | block: Refuse request/bio merges with gaps in the integrity payloadSagi Grimberg2015-09-111-0/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If a driver sets the block queue virtual boundary mask, it means that it cannot handle gaps so we must not allow those in the integrity payload as well. Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Fixed up by me to have duplicate integrity merge functions, depending on whether block integrity is enabled or not. Fixes a compilations issue with CONFIG_BLK_DEV_INTEGRITY unset. Signed-off-by: Jens Axboe <axboe@fb.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-17 16:23:52 +0000