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* x86, mm: Allow highmem user page tables to be disabled at boot timeIan Campbell2010-03-151-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 14315592009c17035cac81f4954d5a1f4d71e489 upstream. Distros generally (I looked at Debian, RHEL5 and SLES11) seem to enable CONFIG_HIGHPTE for any x86 configuration which has highmem enabled. This means that the overhead applies even to machines which have a fairly modest amount of high memory and which therefore do not really benefit from allocating PTEs in high memory but still pay the price of the additional mapping operations. Running kernbench on a 4G box I found that with CONFIG_HIGHPTE=y but no actual highptes being allocated there was a reduction in system time used from 59.737s to 55.9s. With CONFIG_HIGHPTE=y and highmem PTEs being allocated: Average Optimal load -j 4 Run (std deviation): Elapsed Time 175.396 (0.238914) User Time 515.983 (5.85019) System Time 59.737 (1.26727) Percent CPU 263.8 (71.6796) Context Switches 39989.7 (4672.64) Sleeps 42617.7 (246.307) With CONFIG_HIGHPTE=y but with no highmem PTEs being allocated: Average Optimal load -j 4 Run (std deviation): Elapsed Time 174.278 (0.831968) User Time 515.659 (6.07012) System Time 55.9 (1.07799) Percent CPU 263.8 (71.266) Context Switches 39929.6 (4485.13) Sleeps 42583.7 (373.039) This patch allows the user to control the allocation of PTEs in highmem from the command line ("userpte=nohigh") but retains the status-quo as the default. It is possible that some simple heuristic could be developed which allows auto-tuning of this option however I don't have a sufficiently large machine available to me to perform any particularly meaningful experiments. We could probably handwave up an argument for a threshold at 16G of total RAM. Assuming 768M of lowmem we have 196608 potential lowmem PTE pages. Each page can map 2M of RAM in a PAE-enabled configuration, meaning a maximum of 384G of RAM could potentially be mapped using lowmem PTEs. Even allowing generous factor of 10 to account for other required lowmem allocations, generous slop to account for page sharing (which reduces the total amount of RAM mappable by a given number of PT pages) and other innacuracies in the estimations it would seem that even a 32G machine would not have a particularly pressing need for highmem PTEs. I think 32G could be considered to be at the upper bound of what might be sensible on a 32 bit machine (although I think in practice 64G is still supported). It's seems questionable if HIGHPTE is even a win for any amount of RAM you would sensibly run a 32 bit kernel on rather than going 64 bit. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> LKML-Reference: <1266403090-20162-1-git-send-email-ian.campbell@citrix.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* ARM: allow alignment fault mode to be configured at kernel bootRussell King2010-02-201-0/+5
| | | | | | | | | | | | | | | Some glibc versions intentionally create lots of alignment faults in their gconv code, which if not fixed up, results in segfaults during boot. This can prevent systems booting properly. There is no clear hard-configurable default for this; the desired default depends on the nature of the userspace which is going to be booted. So, provide a way for the alignment fault handler to be configured via the kernel command line. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ACPI: processor: add kernel command line support for early _PDC evalAlex Chiang2010-01-221-0/+4
| | | | | | | | Allow platforms not listed in DMI table to opt-in and evaluate _PDC early. Signed-off-by: Alex Chiang <achiang@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI: introduce kernel parameter acpi_sleep=sci_force_enableZhang Rui2009-12-301-1/+4
| | | | | | | | | | | | | | | | Introduce kernel parameter acpi_sleep=sci_force_enable some laptop requires SCI_EN being set directly on resume, or else they hung somewhere in the resume code path. We already have a blacklist for these laptops but we still need this option, especially when debugging some suspend/resume problems, in case there are systems that need this workaround and are not yet in the blacklist. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Acked-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Len Brown <len.brown@intel.com>
* Merge branch 'for-2.6.33' of git://linux-nfs.org/~bfields/linuxLinus Torvalds2009-12-161-3/+3
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-2.6.33' of git://linux-nfs.org/~bfields/linux: (42 commits) nfsd: remove pointless paths in file headers nfsd: move most of nfsfh.h to fs/nfsd nfsd: remove unused field rq_reffh nfsd: enable V4ROOT exports nfsd: make V4ROOT exports read-only nfsd: restrict filehandles accepted in V4ROOT case nfsd: allow exports of symlinks nfsd: filter readdir results in V4ROOT case nfsd: filter lookup results in V4ROOT case nfsd4: don't continue "under" mounts in V4ROOT case nfsd: introduce export flag for v4 pseudoroot nfsd: let "insecure" flag vary by pseudoflavor nfsd: new interface to advertise export features nfsd: Move private headers to source directory vfs: nfsctl.c un-used nfsd #includes lockd: Remove un-used nfsd headers #includes s390: remove un-used nfsd #includes sparc: remove un-used nfsd #includes parsic: remove un-used nfsd #includes compat.c: Remove dependence on nfsd private headers ...
| * nfs: new subdir Documentation/filesystems/nfsJ. Bruce Fields2009-10-271-3/+3
| | | | | | | | | | | | | | | | We're adding enough nfs documentation that it may as well have its own subdirectory. Acked-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* | vt: make the default cursor shape configurableClemens Ladisch2009-12-161-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For embedded systems, the blinking cursor at startup time can be annoying and unintended. Add a new kernel parameter to change the default cursor shape. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Cc: Daniel Mack <daniel@caiaq.de> Acked-by: Pavel Machek <pavel@ucw.cz> Cc: David Newall <davidn@davidnewall.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Greg Kroah-Hartman <gregkh@suse.de> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge branch 'omap-for-linus' of ↵Linus Torvalds2009-12-121-0/+5
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 * 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: (75 commits) omap3: Fix OMAP35XX_REV macros omap: serial: fix non-empty uart fifo read abort omap3: Zoom2/3: Update hsmmc board config params omap3 : Enable TWL4030 Keypad for Zoom2 and Zoom3 boards omap3: id code detection 3525 vs 3515 omap3: rx51: Use wl1251 in SPI mode 3 omap3: zoom2/3: make MMC slot work again omap1: htcherald: Update defconfig to include mux support omap1: LCD_DMA: Use some define rather than a hexadecimal omap: header: remove unused data-type omap: arch/arm/plat-omap/devices.c - sort alphabetically omap: Correcting GPMC_CONFIG1_DEVICETYPE_NAND OMAP3: serial - allow platforms specify which UARTs to initialize omap3: cm-t35: add mux initialization OMAP4: Sync up omap4430 defconfig OMAP4: Remove the secondary wait loop OMAP4: AuxCoreBoot registers only accessible in secure mode OMAP4: Fix SRAM base and size OMAP4: Fix cpu detection omap3: pandora: board file updates for .33 ...
| * | omap: mux: Add new style pin multiplexing code for omap3Tony Lindgren2009-12-111-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Initially only for 34xx. This code allows us to: - Make the code more generic as the omap internal signal names can stay the same across omap generations for some devices - Map mux registers to GPIO registers that is needed for dynamic muxing of pins during off-idle - Override bootloader mux values via kernel cmdline using omap_mux=some.signa1=0x1234,some.signal2=0x1234 - View and set the mux registers via debugfs if CONFIG_DEBUG_FS is enabled Cc: Mike Rapoport <mike@compulab.co.il> Cc: Benoit Cousson <b-cousson@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* | | USB: usb-storage: add BAD_SENSE flagAlan Stern2009-12-111-0/+2
|/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch (as1311) fixes a problem in usb-storage: Some devices are pretty broken when it comes to reporting sense data. The information they send back indicates that they have more than 18 bytes of sense data available, but when the system asks for more than 18 they fail or hang. The symptom is that probing fails with multiple resets. The patch adds a new BAD_SENSE flag to indicate that usb-storage should never ask for more than 18 bytes of sense data. The flag can be set in an unusual_devs entry or via the "quirks=" module parameter, and it is set automatically whenever a REQUEST SENSE command for more than 18 bytes fails or times out. An unusual_devs entry is added for the Agfa photo frame, which uses a Prolific chip having this bug. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Tested-by: Daniel Kukula <daniel.kuku@gmail.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | Merge branch 'x86-setup-for-linus' of ↵Linus Torvalds2009-12-081-0/+9
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-setup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: vgacon: Add support for setting the default cursor state vc: Add support for hiding the cursor when creating VTs x86, setup: Store the boot cursor state
| * | vc: Add support for hiding the cursor when creating VTsMatthew Garrett2009-11-131-0/+9
| |/ | | | | | | | | | | | | | | | | | | Add support for setting a global default for whether or not a visible cursor should be enabled when creating VCs. The default will be to do so, unless overridden by the user at boot time or by a driver. Signed-off-by: Matthew Garrett <mjg@redhat.com> LKML-Reference: <1258143251-5818-1-git-send-email-mjg@redhat.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6Linus Torvalds2009-12-081-0/+3
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1815 commits) mac80211: fix reorder buffer release iwmc3200wifi: Enable wimax core through module parameter iwmc3200wifi: Add wifi-wimax coexistence mode as a module parameter iwmc3200wifi: Coex table command does not expect a response iwmc3200wifi: Update wiwi priority table iwlwifi: driver version track kernel version iwlwifi: indicate uCode type when fail dump error/event log iwl3945: remove duplicated event logging code b43: fix two warnings ipw2100: fix rebooting hang with driver loaded cfg80211: indent regulatory messages with spaces iwmc3200wifi: fix NULL pointer dereference in pmkid update mac80211: Fix TX status reporting for injected data frames ath9k: enable 2GHz band only if the device supports it airo: Fix integer overflow warning rt2x00: Fix padding bug on L2PAD devices. WE: Fix set events not propagated b43legacy: avoid PPC fault during resume b43: avoid PPC fault during resume tcp: fix a timewait refcnt race ... Fix up conflicts due to sysctl cleanups (dead sysctl_check code and CTL_UNNUMBERED removed) in kernel/sysctl_check.c net/ipv4/sysctl_net_ipv4.c net/ipv6/addrconf.c net/sctp/sysctl.c
| * \ Merge branch 'master' of /home/davem/src/GIT/linux-2.6/David S. Miller2009-12-051-12/+16
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: drivers/net/pcmcia/fmvj18x_cs.c drivers/net/pcmcia/nmclan_cs.c drivers/net/pcmcia/xirc2ps_cs.c drivers/net/wireless/ray_cs.c
| * \ \ Merge branch 'master' of ↵David S. Miller2009-11-181-0/+1
| |\ \ \ | | | |/ | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/sfc/sfe4001.c drivers/net/wireless/libertas/cmd.c drivers/staging/Kconfig drivers/staging/Makefile drivers/staging/rtl8187se/Kconfig drivers/staging/rtl8192e/Kconfig
| * | | udp: dynamically size hash tables at boot timeEric Dumazet2009-10-071-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | UDP_HTABLE_SIZE was initialy defined to 128, which is a bit small for several setups. 4000 active UDP sockets -> 32 sockets per chain in average. An incoming frame has to lookup all sockets to find best match, so long chains hurt latency. Instead of a fixed size hash table that cant be perfect for every needs, let UDP stack choose its table size at boot time like tcp/ip route, using alloc_large_system_hash() helper Add an optional boot parameter, uhash_entries=x so that an admin can force a size between 256 and 65536 if needed, like thash_entries and rhash_entries. dmesg logs two new lines : [ 0.647039] UDP hash table entries: 512 (order: 0, 4096 bytes) [ 0.647099] UDP Lite hash table entries: 512 (order: 0, 4096 bytes) Maximal size on 64bit arches would be 65536 slots, ie 1 MBytes for non debugging spinlocks. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | Merge branch 'x86-apic-for-linus' of ↵Linus Torvalds2009-12-051-0/+9
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (30 commits) x86, apic: Enable lapic nmi watchdog on AMD Family 11h x86: Remove unnecessary mdelay() from cpu_disable_common() x86, ioapic: Document another case when level irq is seen as an edge x86, ioapic: Fix the EOI register detection mechanism x86, io-apic: Move the effort of clearing remoteIRR explicitly before migrating the irq x86: SGI UV: Map low MMR ranges x86: apic: Print out SRAT table APIC id in hex x86: Re-get cfg_new in case reuse/move irq_desc x86: apic: Remove not needed #ifdef x86: io-apic: IO-APIC MMIO should not fail on resource insertion x86: Remove asm/apicnum.h x86: apic: Do not use stacked physid_mask_t x86, apic: Get rid of apicid_to_cpu_present assign on 64-bit x86, ioapic: Use snrpintf while set names for IO-APIC resourses x86, apic: Use PAGE_SIZE instead of numbers x86: Remove local_irq_enable()/local_irq_disable() in fixup_irqs() x86: Use EOI register in io-apic on intel platforms x86: Force irq complete move during cpu offline x86: Remove move_cleanup_count from irq_cfg x86, intr-remap: Avoid irq_chip mask/unmask in fixup_irqs() for intr-remapping ...
| * | | | x86, apic: Explain show_lapic= in kernel parameters listCyrill Gorcunov2009-10-141-0/+9
| | |/ / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Cc: yinghai@kernel.org Cc: macro@linux-mips.org LKML-Reference: <20091014150904.GA5259@lenovo> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | | Merge branch 'sched-core-for-linus' of ↵Linus Torvalds2009-12-051-0/+2
|\ \ \ \ | |_|_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (35 commits) sched, cputime: Introduce thread_group_times() sched, cputime: Cleanups related to task_times() Revert "sched, x86: Optimize branch hint in __switch_to()" sched: Fix isolcpus boot option sched: Revert 498657a478c60be092208422fefa9c7b248729c2 sched, time: Define nsecs_to_jiffies() sched: Remove task_{u,s,g}time() sched: Introduce task_times() to replace task_{u,s}time() pair sched: Limit the number of scheduler debug messages sched.c: Call debug_show_all_locks() when dumping all tasks sched, x86: Optimize branch hint in __switch_to() sched: Optimize branch hint in context_switch() sched: Optimize branch hint in pick_next_task_fair() sched_feat_write(): Update ppos instead of file->f_pos sched: Sched_rt_periodic_timer vs cpu hotplug sched, kvm: Fix race condition involving sched_in_preempt_notifers sched: More generic WAKE_AFFINE vs select_idle_sibling() sched: Cleanup select_task_rq_fair() sched: Fix granularity of task_u/stime() sched: Fix/add missing update_rq_clock() calls ...
| * | | sched: Limit the number of scheduler debug messagesMike Travis2009-11-261-0/+2
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove the verbose scheduler debug messages unless kernel parameter "sched_debug" set. /proc/sched_debug unchanged. Signed-off-by: Mike Travis <travis@sgi.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Roland Dreier <rdreier@cisco.com> Cc: Randy Dunlap <rdunlap@xenotime.net> Cc: Tejun Heo <tj@kernel.org> Cc: Andi Kleen <andi@firstfloor.org> Cc: Greg Kroah-Hartman <gregkh@suse.de> Cc: Yinghai Lu <yhlu.kernel@gmail.com> Cc: David Rientjes <rientjes@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Cc: Jack Steiner <steiner@sgi.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <20091118002221.489305000@alcatraz.americas.sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | Merge branch 'tracing-core-for-linus' of ↵Linus Torvalds2009-12-051-0/+7
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'tracing-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (40 commits) tracing: Separate raw syscall from syscall tracer ring-buffer-benchmark: Add parameters to set produce/consumer priorities tracing, function tracer: Clean up strstrip() usage ring-buffer benchmark: Run producer/consumer threads at nice +19 tracing: Remove the stale include/trace/power.h tracing: Only print objcopy version warning once from recordmcount tracing: Prevent build warning: 'ftrace_graph_buf' defined but not used ring-buffer: Move access to commit_page up into function used tracing: do not disable interrupts for trace_clock_local ring-buffer: Add multiple iterations between benchmark timestamps kprobes: Sanitize struct kretprobe_instance allocations tracing: Fix to use __always_unused attribute compiler: Introduce __always_unused tracing: Exit with error if a weak function is used in recordmcount.pl tracing: Move conditional into update_funcs() in recordmcount.pl tracing: Add regex for weak functions in recordmcount.pl tracing: Move mcount section search to front of loop in recordmcount.pl tracing: Fix objcopy revision check in recordmcount.pl tracing: Check absolute path of input file in recordmcount.pl tracing: Correct the check for number of arguments in recordmcount.pl ...
| * | | Merge branch 'tracing/urgent' into tracing/coreIngo Molnar2009-10-291-0/+1
| |\| | | | | | | | | | | | | | | | | | | | | | Merge reason: Pick up fixes and move base from -rc1 to -rc5. Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | ftrace: add kernel command line graph function filteringStefan Assmann2009-10-121-0/+7
| | |/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a command line parameter to allow limiting the function graphs that are traced on boot up from the given top-level callers , when ftrace=function_graph is specified. This patch adds the following command line option: ftrace_graph_filter=function-list Where function-list is a comma separated list of functions to filter. [fweisbec@gmail.com: picked the documentation changes from the v2 patch] Signed-off-by: Stefan Assmann <sassmann@redhat.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> LKML-Reference: <4AD2DEB9.2@redhat.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
* | | Merge branch 'core-signal-for-linus' of ↵Linus Torvalds2009-12-051-2/+9
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'core-signal-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: signal: Print warning message when dropping signals signal: Fix alternate signal stack check
| * | | signal: Print warning message when dropping signalsNaohiro Ooiwa2009-11-091-2/+9
| | |/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When the system has too many timers or too many aggregate queued signals, the EAGAIN error is returned to application from kernel, including timer_create() [POSIX.1b]. It means that the app exceeded the limit of pending signals, but in general application writers do not expect this outcome and the current silent failure can cause rare app failures under very high load. This patch adds a new message when we reach the limit and if print_fatal_signals is enabled: task/1234: reached RLIMIT_SIGPENDING, dropping signal If you see this message and your system behaved unexpectedly, you can run following command to lift the limit: # ulimit -i unlimited With help from Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>. Signed-off-by: Naohiro Ooiwa <nooiwa@miraclelinux.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com> Cc: Roland McGrath <roland@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: oleg@redhat.com LKML-Reference: <4AF6E7E2.9080406@miraclelinux.com> [ Modified a few small details, gave surrounding code some love. ] Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | Merge branch 'master' into nextJames Morris2009-12-031-0/+1
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| * | x86: earlyprintk: Fix regression to handle serial,ttySn as 1 argJason Wessel2009-10-011-0/+1
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit c953094 ("early_printk: Allow more than one early console") introduced a regression in the parsing of the earlyprintk= kernel arguments. If you specify "earlyprintk=serial,ttyS0,115200" as a kernel argument, the "serial,ttyS" should be parsed as a single argument and not as "serial" and then "ttyS". Also update the documentation to reflect you can specify the ttyS directly without the "serial" argument. Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Cc: Len Brown <lenb@kernel.org> Cc: Greg KH <gregkh@suse.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Johannes Weiner <hannes@cmpxchg.org> LKML-Reference: <4ABB7D5E.6000301@windriver.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* / security: remove root_plugJames Morris2009-10-201-10/+0
|/ | | | | | | | | | Remove the root_plug example LSM code. It's unmaintained and increasingly broken in various ways. Made at the 2009 Kernel Summit in Tokyo! Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: James Morris <jmorris@namei.org>
* USB: ehci-dbgp,documentation: Documentation updates for ehci-dbgpJason Wessel2009-09-231-1/+1
| | | | | | | | | | | | | | | | | Add missing information about requirements of using the EHCI usb debug controller as well as to mention you can use a debug controller other than the first one in the system. Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Yinghai Lu <yinghai@kernel.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Sarah Sharp <sarah.a.sharp@intel.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* trivial: typo in kernel-parameters.txtStephen Hemminger2009-09-211-1/+1
| | | | | Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6Linus Torvalds2009-09-181-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (262 commits) sh: mach-ecovec24: Add user debug switch support sh: Kill off unused se_skipped in alignment trap notification code. sh: Wire up HAVE_SYSCALL_TRACEPOINTS. video: sh_mobile_lcdcfb: use both register sets for display panning video: sh_mobile_lcdcfb: implement display panning sh: Fix up sh7705 flush_dcache_page() build. sh: kfr2r09: document the PLL/FLL <-> RF relationship. sh: mach-ecovec24: need asm/clock.h. sh: mach-ecovec24: deassert usb irq on boot. sh: Add KEYSC support for EcoVec24 sh: add kycr2_delay for sh_keysc sh: cpufreq: Include CPU id in info messages. sh: multi-evt support for SH-X3 proto CPU. sh: clkfwk: remove bogus set_bus_parent() from SH7709. sh: Fix the indication point of the liquid crystal of AP-325RXA(AP3300) sh: Add EcoVec24 romImage defconfig sh: USB disable process is needed if romImage boot for EcoVec24 sh: EcoVec24: add HIZA setting for LED sh: EcoVec24: write MAC address in boot sh: Add romImage support for EcoVec24 ...
| * Merge branch 'master' of ↵Paul Mundt2009-09-161-5/+84
| |\ | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 Conflicts: arch/sh/kernel/vmlinux.lds.S
| * | sh: nmi_debug support.Paul Mundt2009-09-011-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This implements support for NMI debugging that was shamelessly copied from the avr32 port. A bit of special magic is needed in the interrupt exception path given that the NMI exception handler is stubbed in to the regular exception handling table despite being reported in INTEVT. So we mangle the lookup and kick off an EXPEVT-style exception dispatch from the INTEVT path for exceptions that do_IRQ() has no chance of handling. As a result, we also drop the evt2irq() conversion from the do_IRQ() path and just do it in assembly. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | | MIPS: Loongson: Add a machtype kernel command line argumentWu Zhangjin2009-09-171-0/+4
| |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The difference between some loongson-based machines is very small, so, if there is no necessary to add new kernel config options to cope with this difference, it will be better to share the same kernel image file between them, benefit from this, the linux distribution developers only have a need to compile the kernel one time. This machtype kernel command line argument will be used later to share the same kernel image file between two different machines(menglong & yeeloong) made by lemote. Thanks very much to Zhang Le for cleaning up the machtype implementation. Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | Merge branch 'for-linus' of ↵Linus Torvalds2009-09-151-5/+6
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: (46 commits) powerpc64: convert to dynamic percpu allocator sparc64: use embedding percpu first chunk allocator percpu: kill lpage first chunk allocator x86,percpu: use embedding for 64bit NUMA and page for 32bit NUMA percpu: update embedding first chunk allocator to handle sparse units percpu: use group information to allocate vmap areas sparsely vmalloc: implement pcpu_get_vm_areas() vmalloc: separate out insert_vmalloc_vm() percpu: add chunk->base_addr percpu: add pcpu_unit_offsets[] percpu: introduce pcpu_alloc_info and pcpu_group_info percpu: move pcpu_lpage_build_unit_map() and pcpul_lpage_dump_cfg() upward percpu: add @align to pcpu_fc_alloc_fn_t percpu: make @dyn_size mandatory for pcpu_setup_first_chunk() percpu: drop @static_size from first chunk allocators percpu: generalize first chunk allocator selection percpu: build first chunk allocators selectively percpu: rename 4k first chunk allocator to page percpu: improve boot messages percpu: fix pcpu_reclaim() locking ... Fix trivial conflict as by Tejun Heo in kernel/sched.c
| * | percpu: kill lpage first chunk allocatorTejun Heo2009-08-141-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | With x86 converted to embedding allocator, lpage doesn't have any user left. Kill it along with cpa handling code. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Jan Beulich <JBeulich@novell.com>
| * | percpu: generalize first chunk allocator selectionTejun Heo2009-08-141-5/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | Now that all first chunk allocators are in mm/percpu.c, it makes sense to make generalize percpu_alloc kernel parameter. Define PCPU_FC_* and set pcpu_chosen_fc using early_param() in mm/percpu.c. Arch code can use the set value to determine which first chunk allocator to use. Signed-off-by: Tejun Heo <tj@kernel.org>
| * | percpu: rename 4k first chunk allocator to pageTejun Heo2009-08-141-1/+1
| |/ | | | | | | | | | | | | | | Page size isn't always 4k depending on arch and configuration. Rename 4k first chunk allocator to page. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: David Howells <dhowells@redhat.com>
* | Merge branch 'kvm-updates/2.6.32' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds2009-09-141-0/+39
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'kvm-updates/2.6.32' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (202 commits) MAINTAINERS: update KVM entry KVM: correct error-handling code KVM: fix compile warnings on s390 KVM: VMX: Check cpl before emulating debug register access KVM: fix misreporting of coalesced interrupts by kvm tracer KVM: x86: drop duplicate kvm_flush_remote_tlb calls KVM: VMX: call vmx_load_host_state() only if msr is cached KVM: VMX: Conditionally reload debug register 6 KVM: Use thread debug register storage instead of kvm specific data KVM guest: do not batch pte updates from interrupt context KVM: Fix coalesced interrupt reporting in IOAPIC KVM guest: fix bogus wallclock physical address calculation KVM: VMX: Fix cr8 exiting control clobbering by EPT KVM: Optimize kvm_mmu_unprotect_page_virt() for tdp KVM: Document KVM_CAP_IRQCHIP KVM: Protect update_cr8_intercept() when running without an apic KVM: VMX: Fix EPT with WP bit change during paging KVM: Use kvm_{read,write}_guest_virt() to read and write segment descriptors KVM: x86 emulator: Add adc and sbb missing decoder flags KVM: Add missing #include ...
| * | KVM: add module parameters documentationAndre Przywara2009-09-101-0/+39
| |/ | | | | | | | | Signed-off-by: Andre Przywara <andre.przywara@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6Linus Torvalds2009-09-141-0/+5
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1623 commits) netxen: update copyright netxen: fix tx timeout recovery netxen: fix file firmware leak netxen: improve pci memory access netxen: change firmware write size tg3: Fix return ring size breakage netxen: build fix for INET=n cdc-phonet: autoconfigure Phonet address Phonet: back-end for autoconfigured addresses Phonet: fix netlink address dump error handling ipv6: Add IFA_F_DADFAILED flag net: Add DEVTYPE support for Ethernet based devices mv643xx_eth.c: remove unused txq_set_wrr() ucc_geth: Fix hangs after switching from full to half duplex ucc_geth: Rearrange some code to avoid forward declarations phy/marvell: Make non-aneg speed/duplex forcing work for 88E1111 PHYs drivers/net/phy: introduce missing kfree drivers/net/wan: introduce missing kfree net: force bridge module(s) to be GPL Subject: [PATCH] appletalk: Fix skb leak when ipddp interface is not loaded ... Fixed up trivial conflicts: - arch/x86/include/asm/socket.h converted to <asm-generic/socket.h> in the x86 tree. The generic header has the same new #define's, so that works out fine. - drivers/net/tun.c fix conflict between 89f56d1e9 ("tun: reuse struct sock fields") that switched over to using 'tun->socket.sk' instead of the redundantly available (and thus removed) 'tun->sk', and 2b980dbd ("lsm: Add hooks to the TUN driver") which added a new 'tun->sk' use. Noted in 'next' by Stephen Rothwell.
| * \ Merge branch 'master' of ↵David S. Miller2009-08-121-2/+2
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: arch/microblaze/include/asm/socket.h
| * | | netpoll: Introduce netpoll_carrier_timeout kernel optionAnton Vorontsov2009-07-081-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some PHYs require longer timeouts for carrier detection, and auto-negotiation process may take indefinite amount of time. It may be inconvenient to force longer timeouts for sane PHYs, so let's introduce a kernel command line option. Since we're using module_param(), the option also can be changed in runtime. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | Merge git://git.linux-nfs.org/projects/trondmy/nfs-2.6Linus Torvalds2009-09-111-0/+29
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.linux-nfs.org/projects/trondmy/nfs-2.6: (87 commits) NFSv4: Disallow 'mount -t nfs4 -overs=2' and 'mount -t nfs4 -overs=3' NFS: Allow the "nfs" file system type to support NFSv4 NFS: Move details of nfs4_get_sb() to a helper NFS: Refactor NFSv4 text-based mount option validation NFS: Mount option parser should detect missing "port=" NFS: out of date comment regarding O_EXCL above nfs3_proc_create() NFS: Handle a zero-length auth flavor list SUNRPC: Ensure that sunrpc gets initialised before nfs, lockd, etc... nfs: fix compile error in rpc_pipefs.h nfs: Remove reference to generic_osync_inode from a comment SUNRPC: cache must take a reference to the cache detail's module on open() NFS: Use the DNS resolver in the mount code. NFS: Add a dns resolver for use with NFSv4 referrals and migration SUNRPC: Fix a typo in cache_pipefs_files nfs: nfs4xdr: optimize low level decoding nfs: nfs4xdr: get rid of READ_BUF nfs: nfs4xdr: simplify decode_exchange_id by reusing decode_opaque_inline nfs: nfs4xdr: get rid of COPYMEM nfs: nfs4xdr: introduce decode_sessionid helper nfs: nfs4xdr: introduce decode_verifier helper ...
| * | | | NFS: Add a dns resolver for use with NFSv4 referrals and migrationTrond Myklebust2009-08-191-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The NFSv4 and NFSv4.1 protocols both allow for the redirection of a client from one server to another in order to support filesystem migration and replication. For full protocol support, we need to add the ability to convert a DNS host name into an IP address that we can feed to the RPC client. We'll reuse the sunrpc cache, now that it has been converted to work with rpc_pipefs. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | | | Merge branch 'nfsv4_xdr_cleanups-for-2.6.32' into nfs-for-2.6.32Trond Myklebust2009-08-191-0/+4
| |\ \ \ \ | | | |_|/ | | |/| | | | | | | | | | | | Conflicts: fs/nfs/nfs4xdr.c
| * | | | SUNRPC: convert some sysctls into module parametersTrond Myklebust2009-08-091-0/+21
| | |_|/ | |/| | | | | | | | | | | | | | | | | | | | | | Parameters like the minimum reserved port, and the number of slot entries should really be module parameters rather than sysctls. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | | | Merge commit 'v2.6.31-rc9' into tracing/coreIngo Molnar2009-09-061-0/+4
|\ \ \ \ | | |/ / | |/| | | | | | | | | | | | | | Merge reason: move from -rc5 to -rc9. Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | Documentation/kernel-parameters.txt: document libata's ignore_hpa optionMichael Prokop2009-08-121-0/+4
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | By default the kernel honors the HPA (host protected area) of hard drives. Using libata's ignore_hpa module option it's possible to change this behaviour. Document usage and options of libata.ignore_hpa in Documentation/kernel-parameters.txt. Signed-off-by: Michael Prokop <mika@grml.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* | | Merge branch 'linus' into tracing/coreIngo Molnar2009-07-181-11/+9
|\| | | | | | | | | | | | | | | | | Merge reason: tracing/core was on an older, pre-rc1 base. Signed-off-by: Ingo Molnar <mingo@elte.hu>
generated by cgit (git 2.34.1) at 2024-06-22 09:49:33 +0000