- 22 Oct, 2007 3 commits
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Dave Jones authored
Signed-off-by: Dave Jones <davej@redhat.com>
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Elias Oltmanns authored
Make cpufreq_conservative handle out-of-sync events properly Currently, the cpufreq_conservative governor doesn't get notified when the actual frequency the cpu is running at differs from what cpufreq thought it was. As a result the cpu may stay at the maximum frequency after a s2ram / resume cycle even though the system is idle. Signed-off-by: Elias Oltmanns <eo@nebensachen.de> Signed-off-by: Dave Jones <davej@redhat.com>
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Mark Langsdorf authored
This patch should apply cleanly to the 2.6.23-git7 kernel. It changes the powernow-k8 driver code that deals with 3rd generation Opteron, Phenom, and later processors to match the architectural pstate driver described in the AMD64 Architecture Programmer's Manual Volume 2 Chapter 18. The initial implementation of the hardware pstate driver for PowerNow! used some processor-version specific features, and would not be maintainable in the long term as the processor features changed. This architectural driver should work on all future AMD processors. Signed-off-by: Mark Langsdorf <mark.langsdorf@amd.com> Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com> Signed-off-by: Dave Jones <davej@redhat.com>
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- 15 Oct, 2007 37 commits
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Geert Uytterhoeven authored
Atari keyboard: incorporate additional review comments: o Kill reference to source file name o Return error value from input_register_device() instead of -ENOMEM Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: Michael Schmitz <schmitz@biophys.uni-duesseldorf.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Linus Torvalds authored
Commit 90833fda ("[ARM] 4554/1: replace consistent_sync() with flush_ioremap_region()") introduced a new "flush_ioremap_region()" function to be used by the MTD mainstone-flash and lubbock-flash drivers to fix a regression from around 2.6.18. Those drivers were independently merged into a single driver by Todd Poynor in commit e644f7d6 ("[MTD] MAPS: Merge Lubbock and Mainstone drivers into common PXA2xx driver") Later, those two commits were merged into the main MTD tree by commit b160292c ("Merge Linux 2.6.23") by David Woodhouse, but in that merge, the fix to use flush_iomap_region() got lost (as it was to files that now no longer existed). This reinstates the fix in the new driver. Noticed-by: Russell King <rmk@arm.linux.org.uk> Tested-and-acked-by: Nicolas Pitre <nico@cam.org> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Jared Hulbert <jaredeh@gmail.com> Cc: Todd Poynor <tpoynor@mvista.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Linus Torvalds authored
If the gdth module is loaded (or compiled in), the gdth_timeout function gets started even if no actual gdth controllers are found b the probing. That ends up not only being unnecessary, but also causes a crash due to the function blindly just trying to pick the first entry off the "gdth_instances" list, and accessing it - which obviously doesn't work if the list is empty! Noticed by Ingo Molnar. Tested-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.linux-nfs.org/pub/linux/nfs-2.6Linus Torvalds authored
* git://git.linux-nfs.org/pub/linux/nfs-2.6: (131 commits) NFSv4: Fix a typo in nfs_inode_reclaim_delegation NFS: Add a boot parameter to disable 64 bit inode numbers NFS: nfs_refresh_inode should clear cache_validity flags on success NFS: Fix a connectathon regression in NFSv3 and NFSv4 NFS: Use nfs_refresh_inode() in ops that aren't expected to change the inode SUNRPC: Don't call xprt_release in call refresh SUNRPC: Don't call xprt_release() if call_allocate fails SUNRPC: Fix buggy UDP transmission [23/37] Clean up duplicate includes in [2.6 patch] net/sunrpc/rpcb_clnt.c: make struct rpcb_program static SUNRPC: Use correct type in buffer length calculations SUNRPC: Fix default hostname created in rpc_create() nfs: add server port to rpc_pipe info file NFS: Get rid of some obsolete macros NFS: Simplify filehandle revalidation NFS: Ensure that nfs_link() returns a hashed dentry NFS: Be strict about dentry revalidation when doing exclusive create NFS: Don't zap the readdir caches upon error NFS: Remove the redundant nfs_reval_fsid() NFSv3: Always use directory post-op attributes in nfs3_proc_lookup ... Fix up trivial conflict due to sock_owned_by_user() cleanup manually in net/sunrpc/xprtsock.c
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Linus Torvalds authored
Merge branch 'v2.6.24-lockdep' of git://git.kernel.org/pub/scm/linux/kernel/git/peterz/linux-2.6-lockdep * 'v2.6.24-lockdep' of git://git.kernel.org/pub/scm/linux/kernel/git/peterz/linux-2.6-lockdep: lockdep: annotate dir vs file i_mutex lockdep: per filesystem inode lock class lockdep: annotate kprobes irq fiddling lockdep: annotate rcu_read_{,un}lock{,_bh} lockdep: annotate journal_start() lockdep: s390: connect the sysexit hook lockdep: x86_64: connect the sysexit hook lockdep: i386: connect the sysexit hook lockdep: syscall exit check lockdep: fixup mutex annotations lockdep: fix mismatched lockdep_depth/curr_chain_hash lockdep: Avoid /proc/lockdep & lock_stat infinite output lockdep: maintainers
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git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6Linus Torvalds authored
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] update sn2_defconfig [IA64] Fix kernel hangup in kdump on INIT [IA64] Fix kernel panic in kdump on INIT [IA64] Remove vector from ia64_machine_kexec() [IA64] Fix race when multiple cpus go through MCA [IA64] Remove needless delay in MCA rendezvous [IA64] add driver for ACPI methods to call native firmware [IA64] abstract SAL_CALL wrapper to allow other firmware entry points [IA64] perfmon: Remove exit_pfm_fs() [IA64] tree-wide: Misc __cpu{initdata, init, exit} annotations
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Linus Torvalds authored
Commit 5a7ad7f0 removed all uses of 'retval', but didn't remove the variable itself. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Jes Sorensen authored
Update defonfig file for sn2 to match recent changes in config options. Signed-off-by: Jes Sorensen <jes@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-schedLinus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched: (140 commits) sched: sync wakeups preempt too sched: affine sync wakeups sched: guest CPU accounting: maintain guest state in KVM sched: guest CPU accounting: maintain stats in account_system_time() sched: guest CPU accounting: add guest-CPU /proc/<pid>/stat fields sched: guest CPU accounting: add guest-CPU /proc/stat field sched: domain sysctl fixes: add terminator comment sched: domain sysctl fixes: do not crash on allocation failure sched: domain sysctl fixes: unregister the sysctl table before domains sched: domain sysctl fixes: use for_each_online_cpu() sched: domain sysctl fixes: use kcalloc() Make scheduler debug file operations const sched: enable wake-idle on CONFIG_SCHED_MC=y sched: reintroduce topology.h tunings sched: allow the immediate migration of cache-cold tasks sched: debug, improve migration statistics sched: debug: increase width of debug line sched: activate task_hot() only on fair-scheduled tasks sched: reintroduce cache-hot affinity sched: speed up context-switches a bit ...
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Linus Torvalds authored
* master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (207 commits) [SCSI] gdth: fix CONFIG_ISA build failure [SCSI] esp_scsi: remove __dev{init,exit} [SCSI] gdth: !use_sg cleanup and use of scsi accessors [SCSI] gdth: Move members from SCp to gdth_cmndinfo, stage 2 [SCSI] gdth: Setup proper per-command private data [SCSI] gdth: Remove gdth_ctr_tab[] [SCSI] gdth: switch to modern scsi host registration [SCSI] gdth: gdth_interrupt() gdth_get_status() & gdth_wait() fixes [SCSI] gdth: clean up host private data [SCSI] gdth: Remove virt hosts [SCSI] gdth: Reorder scsi_host_template intitializers [SCSI] gdth: kill gdth_{read,write}[bwl] wrappers [SCSI] gdth: Remove 2.4.x support, in-kernel changelog [SCSI] gdth: split out pci probing [SCSI] gdth: split out eisa probing [SCSI] gdth: split out isa probing gdth: Make one abuse of scsi_cmnd less obvious [SCSI] NCR5380: Use scsi_eh API for REQUEST_SENSE invocation [SCSI] usb storage: use scsi_eh API in REQUEST_SENSE execution [SCSI] scsi_error: Refactoring scsi_error to facilitate in synchronous REQUEST_SENSE ...
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Linus Torvalds authored
* 'agp-patches' of master.kernel.org:/pub/scm/linux/kernel/git/airlied/agp-2.6: fix use after free in amd create gatt pages AGP fix race condition between unmapping and freeing pages
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ssh://master.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6Linus Torvalds authored
* 'drm-patches' of ssh://master.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: via invalid device ids removal radeon: Commit the ring after each partial texture upload blit. i915: fix vbl swap allocation size. drm: Replace DRM_IOCTL_ARGS with (dev, data, file_priv) and remove DRM_DEVICE. drm: remove XFREE86_VERSION macros. drm: Replace filp in ioctl arguments with drm_file *file_priv. drm: Remove DRM_ERR OS macro.
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git://linux-nfs.org/~bfields/linuxLinus Torvalds authored
* 'nfs-server-stable' of git://linux-nfs.org/~bfields/linux: knfsd: query filesystem for NFSv4 getattr of FATTR4_MAXNAME knfsd: nfsv4 delegation recall should take reference on client knfsd: don't shutdown callbacks until nfsv4 client is freed knfsd: let nfsd manage timing out its own leases knfsd: Add source address to sunrpc svc errors knfsd: 64 bit ino support for NFS server svcgss: move init code into separate function knfsd: remove code duplication in nfsd4_setclientid() nfsd warning fix knfsd: fix callback rpc cred knfsd: move nfsv4 slab creation/destruction to module init/exit knfsd: spawn kernel thread to probe callback channel knfsd: nfs4 name->id mapping not correctly parsing negative downcall knfsd: demote some printk()s to dprintk()s knfsd: cleanup of nfsd4 cmp_* functions knfsd: delete code made redundant by map_new_errors nfsd: fix horrible indentation in nfsd_setattr nfsd: remove unused cache_for_each macro nfsd: tone down inaccurate dprintk
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Geert Uytterhoeven authored
Kill unused variables Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Jiri Kosina authored
Fix bogus copying of data into userspace when HIDIOCGRDESC is issued. HID-transport layer makes sure that dev->hid->rdesc is not larger than HID_MAX_DESCRIPTOR_SIZE. Noticed-by: Al Viro <viro@ftp.linux.org.uk> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Ingo Molnar authored
make sure sync wakeups preempt too - the scheduler will not overschedule as we've got various throttles against that. As a result, sync wakeups can be used more widely in the kernel (to signal wakeup affinity between tasks), and no arbitrary latencies will be introduced either. Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Ingo Molnar authored
make sync wakeups affine for cache-cold tasks: if a cache-cold task is woken up by a sync wakeup then use the opportunity to migrate it straight away. (the two tasks are 'related' because they communicate) Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Laurent Vivier authored
Modify KVM to update guest time accounting. [ mingo@elte.hu: ported to 2.6.24 KVM. ] Signed-off-by: Laurent Vivier <Laurent.Vivier@bull.net> Acked-by: Avi Kivity <avi@qumranet.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Laurent Vivier authored
modify account_system_time() to add cputime to cpustat->guest if we are running a VCPU. We add this cputime to cpustat->user instead of cpustat->system because this part of KVM code is in fact user code although it is executed in the kernel. We duplicate VCPU time between guest and user to allow an unmodified "top(1)" to display correct value. A modified "top(1)" is able to display good cpu user time and cpu guest time by subtracting cpu guest time from cpu user time. Update "gtime" in task_struct accordingly. Signed-off-by: Laurent Vivier <Laurent.Vivier@bull.net> Acked-by: Avi Kivity <avi@qumranet.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Laurent Vivier authored
like for cpustat, introduce the "gtime" (guest time of the task) and "cgtime" (guest time of the task children) fields for the tasks. Modify signal_struct and task_struct. Modify /proc/<pid>/stat to display these new fields. Signed-off-by: Laurent Vivier <Laurent.Vivier@bull.net> Acked-by: Avi Kivity <avi@qumranet.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Laurent Vivier authored
as recent CPUs introduce a third running state, after "user" and "system", we need a new field, "guest", in cpustat to store the time used by the CPU to run virtual CPU. Modify /proc/stat to display this new field. Signed-off-by: Laurent Vivier <Laurent.Vivier@bull.net> Acked-by: Avi Kivity <avi@qumranet.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Milton Miller authored
we had an incorrect-terminator bug in sd_alloc_ctl_domain_table() before, so add a comment that documents it. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Milton Miller authored
Now that we are calling this at runtime, a more relaxed error path is suggested. If an allocation fails, we just register the partial table, which will show empty directories. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Milton Miller authored
Unregister and free the sysctl table before destroying domains, then rebuild and register after creating the new domains. This prevents the sysctl table from pointing to freed memory for root to write. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Milton Miller authored
init_sched_domain_sysctl was walking cpus 0-n and referencing per_cpu variables. If the cpus_possible mask is not contigious this will result in a crash referencing unallocated data. If the online mask is not contigious then we would show offline cpus and miss online ones. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Milton Miller authored
kcalloc checks for n * sizeof(element) overflows and it zeros. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Arjan van de Ven authored
In general, struct file_operations are const in the kernel, to not have false cacheline sharing and to catch bugs at compiletime with accidental writes to them. The new scheduler code introduces a new non-const one; fix this up. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Ingo Molnar authored
most multicore CPUs today have shared L2 caches, so tune things so that the spreading amongst cores is more aggressive. Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Ingo Molnar authored
reintroduce the 2.6.22 topology.h tunings again - they result in slightly better balancing. Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Ingo Molnar authored
allow the immediate migration of cache-cold tasks. Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Ingo Molnar authored
add new migration statistics when SCHED_DEBUG and SCHEDSTATS is enabled. Available in /proc/<PID>/sched. Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Ingo Molnar authored
increase width of debug line - in preparation of more debugging info. Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Peter Zijlstra authored
activate task_hot() only for fair-scheduled tasks (i.e. disable it for RT tasks). Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Ingo Molnar authored
reintroduce a simplified version of cache-hot/cold scheduling affinity. This improves performance with certain SMP workloads, such as sysbench. Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Ingo Molnar authored
speed up context-switches a bit by not clearing p->exec_start. (as a side-effect, this also makes p->exec_start a universal timestamp available to cache-hot estimations.) Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Ingo Molnar authored
do not wakeup-preempt with SCHED_BATCH tasks, their preemption is batched too, driven by the tick. Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Srivatsa Vaddagiri authored
Generate uevents when a user is being created/destroyed. These events can be used to configure cpu share of a new user. Signed-off-by: Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com> Signed-off-by: Dhaval Giani <dhaval@linux.vnet.ibm.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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