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* ocfs2/cluster: Release debugfs file elapsed_time_in_msSunil Mushran2010-10-15
| | | | | | An earlier commit forgot to remove a debugfs file, elapsed_time_in_ms. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
* ocfs2/cluster: Bump up dlm protocol to version 1.1Sunil Mushran2010-10-09
| | | | | | | | | dlm protocol 1.1. activates messages DLM_QUERY_REGION and DLM_QUERY_NODEINFO that are a must for global heartbeat. It also activates o2hb_global_heartbeat_active(). Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
* ocfs2/cluster: Show per region heartbeat elapsed timeSunil Mushran2010-10-06
| | | | | | | This patch adds a per region debugfs file that shows the elapsed time since the time the o2hb timer was last armed. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
* ocfs2/cluster: Add mlogs for heartbeat up/down eventsSunil Mushran2010-10-06
| | | | | | This patch adds mlogs for o2hb up and down events. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
* ocfs2/cluster: Create debugfs dir/files for each regionSunil Mushran2010-10-06
| | | | | | | | This patch creates debugfs directory for each o2hb region and creates files to expose the region number and the per region live node bitmap. This information will be useful in debugging cluster issues. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
* ocfs2/cluster: Create debugfs files for live, quorum and failed region bitmapsSunil Mushran2010-10-06
| | | | | | | This patch prints the bitmaps of live, quorum and failed regions. This information will be useful in debugging cluster issues. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
* ocfs2/cluster: Maintain bitmap of failed regionsSunil Mushran2010-10-07
| | | | | | | | In global heartbeat mode, we track the bitmap of regions that have seen heartbeat timeouts. We fence if the number of such regions is greater than or equal to half the number of quorum regions. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
* ocfs2/cluster: Maintain bitmap of quorum regionsSunil Mushran2010-10-06
| | | | | | | | o2hb allows online adding of regions. However, a newly added region is not used in quorum calculations unless it has been added on all nodes. This patch tracks a bitmap of such quorum regions. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
* ocfs2/cluster: Track bitmap of live heartbeat regionsSunil Mushran2010-10-06
| | | | | | | A heartbeat region becomes live (or active) after a fixed number of (steady) iterations. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
* ocfs2/cluster: Track number of global heartbeat regionsSunil Mushran2010-10-07
| | | | | | | | In global heartbeat mode, we have a upper limit for the number of active regions. This patch adds the facility to track the number of active global heartbeat regions and fails to start heartbeat if the number exceeds the maximum. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
* ocfs2/cluster: Maintain live node bitmap per heartbeat regionSunil Mushran2010-10-06
| | | | | | | | | | | Currently we track a global livenode bitmap that keeps track of all nodes that are heartbeating in all regions. This patch adds the ability to track the livenode bitmap on a per region basis. We will use this facility in a later patch to allow us to withstand the loss of a minority number of regions. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
* ocfs2/cluster: Reorganize o2hb debugfs initSunil Mushran2010-10-07
| | | | | | o2hb debugfs handling is reorganized to allow for easy expansion. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
* ocfs2/cluster: Check slots for unconfigured live nodesSunil Mushran2010-10-07
| | | | | | | | o2hb currently checks slots for configured nodes only. This patch makes it check the slots for the live nodes too to take care of a race in which a node is removed from the configuration but not from the live map. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
* ocfs2/cluster: Print messages when adding/removing nodesSunil Mushran2010-10-07
| | | | | | Prints messages when the user adds or removes nodes. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
* ocfs2/cluster: Print messages when adding/removing heartbeat regionsSunil Mushran2010-10-06
| | | | | | | Prints messages when the user adds or removes heartbeat regions in global heartbeat mode. These messages are useful when debugging cluster related issues. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
* ocfs2/dlm: Add message DLM_QUERY_NODEINFOSunil Mushran2010-10-07
| | | | | | | | | Adds new dlm message DLM_QUERY_NODEINFO that sends the attributes of all registered nodes. This message is sent if the negotiated dlm protocol is 1.1 or higher. If the information of the joining node does not match that of any existing nodes, the join domain request is rejected. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
* ocfs2: Print message if user mounts without starting global heartbeatSunil Mushran2010-10-06
| | | | | | | | In global heartbeat mode, the heartbeat is started by the user. This patch prints an error if the user attempts to mount a volume without starting the heartbeat. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
* ocfs2/dlm: Add message DLM_QUERY_REGIONSunil Mushran2010-10-09
| | | | | | | | | Adds new dlm message DLM_QUERY_REGION that sends the names of all active heartbeat regions. This message is only sent in the global heartbeat mode. If the regions in the joining node do not fully match the ones in the active nodes, the join domain request is rejected. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
* ocfs2/cluster: Get all heartbeat regionsSunil Mushran2010-10-07
| | | | | | | | | | Export function in o2hb to get a list of heartbeat regions. It also adds an upper limit to the length of the heartbeat region name. o2hb_global_heartbeat_active() currently disables global heartbeat. It will be enabled in a later patch after all the code is added. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
* ocfs2/dlm: Expose dlm_protocol in dlm_stateSunil Mushran2010-10-06
| | | | | | Add dlm_protocol to the list of info shown by the debugfs file, dlm_state. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
* ocfs2: Add support for heartbeat=global mount optionSunil Mushran2010-10-07
| | | | | | | Adds support for heartbeat=global mount option. It ensures that the heartbeat mode passed matches the one enabled on disk. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
* ocfs2: Add an incompat feature flag OCFS2_FEATURE_INCOMPAT_CLUSTERINFOSunil Mushran2010-10-09
| | | | | | | | | | | | | | | OCFS2_FEATURE_INCOMPAT_CLUSTERINFO allows us to use sb->s_cluster_info for both userspace and o2cb cluster stacks. It also allows us to extend cluster info to include stack flags. This patch also adds stackflags to sb->s_clusterinfo. It also introduces a clusterinfo flag OCFS2_CLUSTER_O2CB_GLOBAL_HEARTBEAT to denote the enabled global heartbeat mode. This incompat flag can be set/cleared using tunefs.ocfs2 --fs-features. The clusterinfo flag is set/cleared using tunefs.ocfs2 --update-cluster-stack. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
* ocfs2/cluster: Add heartbeat mode configfs parameterSunil Mushran2010-10-07
| | | | | | | | Add heartbeat mode parameter to the configfs tree. This will be used to set/show the heartbeat mode. The user is free to toggle the mode between local and global as long as there is no active heartbeat region. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
* Linux 2.6.36-rc7v2.6.36-rc7Linus Torvalds2010-10-06
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* Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linusLinus Torvalds2010-10-06
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus: MIPS: Octeon: Place cnmips_cu2_setup in __init memory. MIPS: Don't place cu2 notifiers in __cpuinitdata MIPS: Calculate VMLINUZ_LOAD_ADDRESS based on the length of vmlinux.bin MIPS: Alchemy: Resolve prom section mismatches MIPS: Fix syscall 64 bit number comments. MIPS: Hookup fanotify_init, fanotify_mark, and prlimit64 syscalls. MIPS: TX49xx: Rename ARCH_KMALLOC_MINALIGN to ARCH_DMA_MINALIGN MIPS: N32: Fix getdents64 syscall for n32 MIPS: Remove pr_<level> uses of KERN_<level> MIPS: PNX8550: Sort out machine halt, restart and powerdown functions. MIPS: GIC: Remove dependencies from Malta files. MIPS: Kconfig: Fix and clarify kconfig help text for VSMP and SMTC. MIPS: DMA: Fix computation of DMA flags from device's coherent_dma_mask. MIPS: Audit: Fix hang in entry.S. MIPS: Document why RELOC_HIDE is there. MIPS: Octeon: Determine if helper needs to be built MIPS: Use generic atomic64 for 32-bit kernels MIPS: RM7000: Symbol should be static MIPS: kspd: Adjust confusing if indentation MIPS: Fix a typo.
| * MIPS: Octeon: Place cnmips_cu2_setup in __init memory.David Daney2010-10-04
| | | | | | | | | | | | | | | | | | It is an early_initcall, so it should be in __init memory. Signed-off-by: David Daney <ddaney@caviumnetworks.com> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/1593/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: Don't place cu2 notifiers in __cpuinitdataDavid Daney2010-10-04
| | | | | | | | | | | | | | | | | | | | The notifiers may be called at any time, so the notifier_block cannot be in init memory. Signed-off-by: David Daney <ddaney@caviumnetworks.com> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/1592/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: Calculate VMLINUZ_LOAD_ADDRESS based on the length of vmlinux.binShmulik Ladkani2010-10-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix VMLINUZ_LOAD_ADDRESS calculation to be based on the length of vmlinux.bin, the actual uncompressed kernel binary. Previously it was based on the length of KBUILD_IMAGE (the unstripped ELF vmlinux), which is bigger than vmlinux.bin. As a result, vmlinuz was loaded into a memory address higher then actually needed - a problem for small memory platforms. Signed-off-by: Shmulik Ladkani <shmulik.ladkani@gmail.com> To: linux-mips@linux-mips.org Cc: alex@digriz.org.uk Cc: manuel.lauss@googlemail.com Cc: sam@ravnborg.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/1564/ Acked-by: Wu Zhangjin <wuzhangjin@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: Alchemy: Resolve prom section mismatchesManuel Lauss2010-10-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The function prom_init_cmdline() references the variable __initdata arcs_cmdline. The function prom_get_ethernet_addr() references the variable __initdata arcs_cmdline. Annotate prom_init_cmdline() as __init, unexport and annotate prom_get_ethernet_addr() since it's no longer called from within driver code. Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com> To: Linux-MIPS <linux-mips@linux-mips.org> Patchwork: https://patchwork.linux-mips.org/patch/1547/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: Fix syscall 64 bit number comments.Ralf Baechle2010-10-04
| | | | | | | | | | | | Noticed and original patch by Philby John <pjohn@mvista.com>. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: Hookup fanotify_init, fanotify_mark, and prlimit64 syscalls.David Daney2010-10-04
| | | | | | | | | | | | | | Signed-off-by: David Daney <ddaney@caviumnetworks.com> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/1553/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: TX49xx: Rename ARCH_KMALLOC_MINALIGN to ARCH_DMA_MINALIGNFUJITA Tomonori2010-10-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Architectures need to set ARCH_DMA_MINALIGN to the minimum DMA alignment (commit a6eb9fe105d5de0053b261148cee56c94b4720ca). Defining ARCH_KMALLOC_MINALIGN doesn't work anymore. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Cc: anemo@mba.ocn.ne.jp Patchwork: https://patchwork.linux-mips.org/patch/1544/ Acked-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: N32: Fix getdents64 syscall for n32Bernhard Walle2010-10-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 31c984a5acabea5d8c7224dc226453022be46f33 introduced a new syscall getdents64. However, in the syscall table, the new syscall still refers to the old getdents which doesn't work. The problem appeared with a system that uses the eglibc 2.12-r11187 (that utilizes that new syscall) is very confused. The fix has been tested with that eglibc version. Signed-off-by: Bernhard Walle <walle@corscience.de> To: linux-mips@linux-mips.org Cc: ddaney@caviumnetworks.com Cc: akpm@linux-foundation.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/1567/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: Remove pr_<level> uses of KERN_<level>Joe Perches2010-10-04
| | | | | | | | | | | | | | | | | | | | | | These would result in KERN_<level> actually getting printed. Signed-off-by: Joe Perches <joe@perches.com> To: Jiri Kosina <trivial@kernel.org> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/1581/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: PNX8550: Sort out machine halt, restart and powerdown functions.Ralf Baechle2010-10-04
| | | | | | | | | | | | | | | | No rubbish printks - those belong to userspace. The halt function now actually halts the system and the poweroff function was deleted because it didn't actually power down the system. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: GIC: Remove dependencies from Malta files.Ralf Baechle2010-10-04
| | | | | | | | | | | | This prevents the GIC code from being reusable sanely. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: Kconfig: Fix and clarify kconfig help text for VSMP and SMTC.Ralf Baechle2010-10-04
| | | | | | | | | | | | | | Only VSMP was known as SMVP and generally the help text was too short to be helpful. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: DMA: Fix computation of DMA flags from device's coherent_dma_mask.Ralf Baechle2010-10-04
| | | | | | | | | | | | | | | | | | This only matters for ISA devices with a 24-bit DMA limit or for devices with a 32-bit DMA limit on systems with ZONE_DMA32 enabled. The latter currently only affects 32-bit PCI cards on Sibyte-based systems with more than 1GB RAM installed. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: Audit: Fix hang in entry.S.Ralf Baechle2010-10-04
| | | | | | | | | | | | | | | | | | | | | | _TIF_WORK_MASK false had _TIF_SYSCALL_AUDIT set. If a thread's _TIF_SYSCALL_AUDIT is ever set this will lead to an endless loop on the way out from a syscall. Currently this is only a theoretic bug as init/Kconfig doesn't allow AUDIT_SYSCALL to be enabled for MIPS. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: Document why RELOC_HIDE is there.Ralf Baechle2010-10-04
| | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: Octeon: Determine if helper needs to be builtAndreas Bießmann2010-10-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds an config switch to determine if we need to build some workaround helper files. The staging driver octeon-ethernet references some symbols which are only built when PCI is enabled. The new config switch enables these symbols in bothe cases. Signed-off-by: Andreas Bießmann <biessmann@corscience.de> To: linux-kernel@vger.kernel.org Cc: Andreas Bießmann <biessmann@corscience.de> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/1543/ Acked-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: Use generic atomic64 for 32-bit kernelsDeng-Cheng Zhu2010-10-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The 64-bit kernel has already had its atomic64 functions. Except for that, we use the generic spinlocked version. The atomic64 types and related functions are needed for the Linux performance counter subsystem. Signed-off-by: Deng-Cheng Zhu <dengcheng.zhu@gmail.com> To: linux-mips@linux-mips.org Cc: a.p.zijlstra@chello.nl Cc: paulus@samba.org Cc: mingo@elte.hu Cc: acme@redhat.com Cc: jamie.iles@picochip.com Patchwork: https://patchwork.linux-mips.org/patch/1361/ Acked-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: RM7000: Symbol should be staticRicardo Mendoza2010-10-04
| | | | | | | | | | | | | | Signed-off-by: Ricardo Mendoza <ricmm@gentoo.org> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/1540/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: kspd: Adjust confusing if indentationJulia Lawall2010-10-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Indent the branch of an if. The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r disable braces4@ position p1,p2; statement S1,S2; @@ ( if (...) { ... } | if (...) S1@p1 S2@p2 ) @script:python@ p1 << r.p1; p2 << r.p2; @@ if (p1[0].column == p2[0].column): cocci.print_main("branch",p1) cocci.print_secs("after",p2) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> To: linux-mips@linux-mips.org To: linux-kernel@vger.kernel.org To: kernel-janitors@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/1539/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: Fix a typo.Andrea Gelmini2010-10-04
| | | | | | | | | | | | | | | | | | | | | | | | "Userpace" -> "Userspace" Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net> Cc: Andrea Gelmini <andrea.gelmini@gelma.net> Cc: Jason Wessel <jason.wessel@windriver.com> Cc: Martin Hicks <mort@sgi.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/1536/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds2010-10-06
|\ \ | | | | | | | | | | | | * 'for-linus' of git://git.kernel.dk/linux-2.6-block: writeback: always use sb->s_bdi for writeback purposes
| * | writeback: always use sb->s_bdi for writeback purposesChristoph Hellwig2010-10-04
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We currently use struct backing_dev_info for various different purposes. Originally it was introduced to describe a backing device which includes an unplug and congestion function and various bits of readahead information and VM-relevant flags. We're also using for tracking dirty inodes for writeback. To make writeback properly find all inodes we need to only access the per-filesystem backing_device pointed to by the superblock in ->s_bdi inside the writeback code, and not the instances pointeded to by inode->i_mapping->backing_dev which can be overriden by special devices or might not be set at all by some filesystems. Long term we should split out the writeback-relevant bits of struct backing_device_info (which includes more than the current bdi_writeback) and only point to it from the superblock while leaving the traditional backing device as a separate structure that can be overriden by devices. The one exception for now is the block device filesystem which really wants different writeback contexts for it's different (internal) inodes to handle the writeout more efficiently. For now we do this with a hack in fs-writeback.c because we're so late in the cycle, but in the future I plan to replace this with a superblock method that allows for multiple writeback contexts per filesystem. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
* | Merge branch 'v2.6.36-rc6-urgent-fixes' of ↵Linus Torvalds2010-10-06
|\ \ | | | | | | | | | | | | | | | | | | | | | git://xenbits.xen.org/people/sstabellini/linux-pvhvm * 'v2.6.36-rc6-urgent-fixes' of git://xenbits.xen.org/people/sstabellini/linux-pvhvm: xen: do not initialize PV timers on HVM if !xen_have_vector_callback xen: do not set xenstored_ready before xenbus_probe on hvm
| * | xen: do not initialize PV timers on HVM if !xen_have_vector_callbackStefano Stabellini2010-10-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | if !xen_have_vector_callback do not initialize PV timer unconditionally because we still don't know how many cpus are available and if there is more than one we won't be able to receive the timer interrupts on cpu > 0. This patch fixes an hang at boot when Xen does not support vector callbacks and the guest has multiple vcpus. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Acked-by: Jeremy Fitzhardinge <jeremy@goop.org>
| * | xen: do not set xenstored_ready before xenbus_probe on hvmStefano Stabellini2010-10-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Register_xenstore_notifier should guarantee that the caller gets notified even if xenstore is already up. Therefore we revert "do not notify callers from register_xenstore_notifier" and set xenstored_read at the right time for PV on HVM guests too. In fact in case of PV on HVM guests xenstored is ready only after the platform pci driver has completed the initialization, so do not set xenstored_ready before the call to xenbus_probe(). This patch fixes a shutdown_event watcher registration bug that causes "xm shutdown" not to work properly. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Acked-by: Jeremy Fitzhardinge <jeremy@goop.org>
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