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2011-05-05net: Add sendmmsg socket system callAnton Blanchard9-6/+14
This patch adds a multiple message send syscall and is the send version of the existing recvmmsg syscall. This is heavily based on the patch by Arnaldo that added recvmmsg. I wrote a microbenchmark to test the performance gains of using this new syscall: http://ozlabs.org/~anton/junkcode/sendmmsg_test.c The test was run on a ppc64 box with a 10 Gbit network card. The benchmark can send both UDP and RAW ethernet packets. 64B UDP batch pkts/sec 1 804570 2 872800 (+ 8 %) 4 916556 (+14 %) 8 939712 (+17 %) 16 952688 (+18 %) 32 956448 (+19 %) 64 964800 (+20 %) 64B raw socket batch pkts/sec 1 1201449 2 1350028 (+12 %) 4 1461416 (+22 %) 8 1513080 (+26 %) 16 1541216 (+28 %) 32 1553440 (+29 %) 64 1557888 (+30 %) We see a 20% improvement in throughput on UDP send and 30% on raw socket send. [ Add sparc syscall entries. -DaveM ] Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-04x86/net: only select BPF_JIT when NET is enabledRandy Dunlap1-1/+1
Fix kconfig unmet dependency warning: HAVE_BPF_JIT depends on NET, so make the "select" of it depend on NET also. warning: (X86) selects HAVE_BPF_JIT which has unmet direct dependencies (NET) Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-29ethtool: Call ethtool's get/set_settings callbacks with cleaned dataDavid Decotigny1-13/+8
This makes sure that when a driver calls the ethtool's get/set_settings() callback of another driver, the data passed to it is clean. This guarantees that speed_hi will be zeroed correctly if the called callback doesn't explicitely set it: we are sure we don't get a corrupted speed from the underlying driver. We also take care of setting the cmd field appropriately (ETHTOOL_GSET/SSET). This applies to dev_ethtool_get_settings(), which now makes sure it sets up that ethtool command parameter correctly before passing it to drivers. This also means that whoever calls dev_ethtool_get_settings() does not have to clean the ethtool command parameter. This function also becomes an exported symbol instead of an inline. All drivers visible to make allyesconfig under x86_64 have been updated. Signed-off-by: David Decotigny <decot@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-27net: filter: Just In Time compiler for x86-64Eric Dumazet5-0/+800
In order to speedup packet filtering, here is an implementation of a JIT compiler for x86_64 It is disabled by default, and must be enabled by the admin. echo 1 >/proc/sys/net/core/bpf_jit_enable It uses module_alloc() and module_free() to get memory in the 2GB text kernel range since we call helpers functions from the generated code. EAX : BPF A accumulator EBX : BPF X accumulator RDI : pointer to skb (first argument given to JIT function) RBP : frame pointer (even if CONFIG_FRAME_POINTER=n) r9d : skb->len - skb->data_len (headlen) r8 : skb->data To get a trace of generated code, use : echo 2 >/proc/sys/net/core/bpf_jit_enable Example of generated code : # tcpdump -p -n -s 0 -i eth1 host 192.168.20.0/24 flen=18 proglen=147 pass=3 image=ffffffffa00b5000 JIT code: ffffffffa00b5000: 55 48 89 e5 48 83 ec 60 48 89 5d f8 44 8b 4f 60 JIT code: ffffffffa00b5010: 44 2b 4f 64 4c 8b 87 b8 00 00 00 be 0c 00 00 00 JIT code: ffffffffa00b5020: e8 24 7b f7 e0 3d 00 08 00 00 75 28 be 1a 00 00 JIT code: ffffffffa00b5030: 00 e8 fe 7a f7 e0 24 00 3d 00 14 a8 c0 74 49 be JIT code: ffffffffa00b5040: 1e 00 00 00 e8 eb 7a f7 e0 24 00 3d 00 14 a8 c0 JIT code: ffffffffa00b5050: 74 36 eb 3b 3d 06 08 00 00 74 07 3d 35 80 00 00 JIT code: ffffffffa00b5060: 75 2d be 1c 00 00 00 e8 c8 7a f7 e0 24 00 3d 00 JIT code: ffffffffa00b5070: 14 a8 c0 74 13 be 26 00 00 00 e8 b5 7a f7 e0 24 JIT code: ffffffffa00b5080: 00 3d 00 14 a8 c0 75 07 b8 ff ff 00 00 eb 02 31 JIT code: ffffffffa00b5090: c0 c9 c3 BPF program is 144 bytes long, so native program is almost same size ;) (000) ldh [12] (001) jeq #0x800 jt 2 jf 8 (002) ld [26] (003) and #0xffffff00 (004) jeq #0xc0a81400 jt 16 jf 5 (005) ld [30] (006) and #0xffffff00 (007) jeq #0xc0a81400 jt 16 jf 17 (008) jeq #0x806 jt 10 jf 9 (009) jeq #0x8035 jt 10 jf 17 (010) ld [28] (011) and #0xffffff00 (012) jeq #0xc0a81400 jt 16 jf 13 (013) ld [38] (014) and #0xffffff00 (015) jeq #0xc0a81400 jt 16 jf 17 (016) ret #65535 (017) ret #0 Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: Ben Hutchings <bhutchings@solarflare.com> Cc: Hagen Paul Pfeifer <hagen@jauu.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-21powerpc: Fix multicast problem in fs_enet driverAndrea Galbusera1-2/+2
mac-fec.c was setting individual UDP address registers instead of multicast group address registers when joining a multicast group. This prevented from correctly receiving UDP multicast packets. According to datasheet, replaced hash_table_high and hash_table_low with grp_hash_table_high and grp_hash_table_low respectively. Also renamed hash_table_* with grp_hash_table_* in struct fec declaration for 8xx: these registers are used only for multicast there. Tested on a MPC5121 based board. Build tested also against mpc866_ads_defconfig. Signed-off-by: Andrea Galbusera <gizero@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-08Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6Linus Torvalds4-8/+8
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: [S390] compile fix for latest binutils [S390] cio: prevent purging of CCW devices in the online state [S390] qdio: fix init sequence [S390] Fix parameter passing for smp_switch_to_cpu() [S390] oprofile s390: prevent stack corruption
2011-04-07Merge branch 'fbdev-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/fbdev-2.6Linus Torvalds2-8/+42
* 'fbdev-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/fbdev-2.6: efifb: Add override for 11" Macbook Air 3,1 efifb: Support overriding fields FW tells us with the DMI data. fb: Reduce priority of resource conflict message savagefb: Remove obsolete else clause in savage_setup_i2c_bus savagefb: Set up I2C based on chip family instead of card id savagefb: Replace magic register address with define drivers/video/bfin-lq035q1-fb.c: introduce missing kfree video: s3c-fb: fix checkpatch errors and warning efifb: support AMD Radeon HD 6490 s3fb: fix Virge/GX2 fbcon: Remove unused 'display *p' variable from fb_flashcursor() fbdev: sh_mobile_lcdcfb: fix module lock acquisition fbdev: sh_mobile_lcdcfb: add blanking support viafb: initialize margins correct viafb: refresh rate bug collection sh: mach-ap325rxa: move backlight control code sh: mach-ecovec24: support for main lcd backlight
2011-04-07Merge branch 'rmobile-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6Linus Torvalds4-20/+13
* 'rmobile-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: ARM: arch-shmobile: only run FSI init on respective boards ARM: arch-shmobile: only run HDMI init on respective boards ARM: mach-shmobile: Correctly check for CONFIG_MACH_MACKEREL
2011-04-07Merge branch 'sh-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6Linus Torvalds3-4/+4
* 'sh-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: sh: select ARCH_NO_SYSDEV_OPS. sh: fix build error in board-sh7757lcr.c sh: landisk: Remove whitespace sh: landisk: Remove mv_nr_irqs sh: sh-sci: Fix double initialization by serial_console_setup serial: sh-sci: prevent setup of uninitialized serial console dma: shdma: add checking the DMAOR_AE in sh_dmae_err
2011-04-07Merge branches 'x86-fixes-for-linus', 'sched-fixes-for-linus', 'timers-fixes-for-linus', 'irq-fixes-for-linus' and 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tipLinus Torvalds5-17/+18
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86-32, fpu: Fix FPU exception handling on non-SSE systems x86, hibernate: Initialize mmu_cr4_features during boot x86-32, NUMA: Fix ACPI NUMA init broken by recent x86-64 change x86: visws: Fixup irq overhaul fallout * 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: sched: Clean up rebalance_domains() load-balance interval calculation * 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86/mrst/vrtc: Fix boot crash in mrst_rtc_init() rtc, x86/mrst/vrtc: Fix boot crash in rtc_read_alarm() * 'irq-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: genirq: Fix cpumask leak in __setup_irq() * 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: perf probe: Fix listing incorrect line number with inline function perf probe: Fix to find recursively inlined function perf probe: Fix multiple --vars options behavior perf probe: Fix to remove redundant close perf probe: Fix to ensure function declared file
2011-04-07Merge branch 'kvm-updates/2.6.39' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds1-9/+28
* 'kvm-updates/2.6.39' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: move and fix substitue search for missing CPUID entries KVM: fix XSAVE bit scanning KVM: Enable async page fault processing KVM: fix crash on irqfd deassign
2011-04-07Merge branch 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6Linus Torvalds403-523/+523
* 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6: Fix common misspellings
2011-04-07x86/mrst/vrtc: Fix boot crash in mrst_rtc_init()Feng Tang1-1/+3
The sfi_mrtc_array[] only gets initialized when the sfi mrtc table is parsed, so the vrtc_paddr should be initalized after it too. Signed-off-by: Feng Tang <feng.tang@intel.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Link: http://lkml.kernel.org/r/1302140389-27603-1-git-send-email-feng.tang@intel.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-04-06x86-32, fpu: Fix FPU exception handling on non-SSE systemsHans Rosenfeld1-1/+1
On 32bit systems without SSE (that is, they use FSAVE/FRSTOR for FPU context switches), FPU exceptions in user mode cause Oopses, BUGs, recursive faults and other nasty things: fpu exception: 0000 [#1] last sysfs file: /sys/power/state Modules linked in: psmouse evdev pcspkr serio_raw [last unloaded: scsi_wait_scan] Pid: 1638, comm: fxsave-32-excep Not tainted 2.6.35-07798-g58a992b-dirty #633 VP3-596B-DD/VT82C597 EIP: 0060:[<c1003527>] EFLAGS: 00010202 CPU: 0 EIP is at math_error+0x1b4/0x1c8 EAX: 00000003 EBX: cf9be7e0 ECX: 00000000 EDX: cf9c5c00 ESI: cf9d9fb4 EDI: c1372db3 EBP: 00000010 ESP: cf9d9f1c DS: 007b ES: 007b FS: 0000 GS: 00e0 SS: 0068 Process fxsave-32-excep (pid: 1638, ti=cf9d8000 task=cf9be7e0 task.ti=cf9d8000) Stack: 00000000 00000301 00000004 00000000 00000000 cf9d3000 cf9da8f0 00000001 <0> 00000004 cf9b6b60 c1019a6b c1019a79 00000020 00000242 000001b6 cf9c5380 <0> cf806b40 cf791880 00000000 00000282 00000282 c108a213 00000020 cf9c5380 Call Trace: [<c1019a6b>] ? need_resched+0x11/0x1a [<c1019a79>] ? should_resched+0x5/0x1f [<c108a213>] ? do_sys_open+0xbd/0xc7 [<c108a213>] ? do_sys_open+0xbd/0xc7 [<c100353b>] ? do_coprocessor_error+0x0/0x11 [<c12d5965>] ? error_code+0x65/0x70 Code: a8 20 74 30 c7 44 24 0c 06 00 03 00 8d 54 24 04 89 d9 b8 08 00 00 00 e8 9b 6d 02 00 eb 16 8b 93 5c 02 00 00 eb 05 e9 04 ff ff ff <9b> dd 32 9b e9 16 ff ff ff 81 c4 84 00 00 00 5b 5e 5f 5d c3 c6 EIP: [<c1003527>] math_error+0x1b4/0x1c8 SS:ESP 0068:cf9d9f1c This usually continues in slight variations until the system is reset. This bug was introduced by commit 58a992b9cbaf449aeebd3575c3695a9eb5d95b5e: x86-32, fpu: Rewrite fpu_save_init() Signed-off-by: Hans Rosenfeld <hans.rosenfeld@amd.com> Link: http://lkml.kernel.org/r/1302106003-366952-1-git-send-email-hans.rosenfeld@amd.com Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2011-04-06x86, hibernate: Initialize mmu_cr4_features during bootH. Peter Anvin1-0/+5
Restore the initialization of mmu_cr4_features during boot, which was removed without comment in checkin e5f15b45ddf3afa2bbbb10c7ea34fb32b6de0a0e x86: Cleanup highmap after brk is concluded thereby breaking resume from hibernate. This restores previous functionality in approximately the same place, and corrects the reading of %cr4 on pre-CPUID hardware (%cr4 exists if and only if CPUID is supported.) However, part of the problem is that the hibernate suspend/resume sequence should manage the save/restore of %cr4 explicitly. Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Cc: Rafael J. Wysocki <rjw@sisk.pl> Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Cc: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <201104020154.57136.rjw@sisk.pl>
2011-04-06sh: select ARCH_NO_SYSDEV_OPS.Paul Mundt1-0/+1
Now that everything that was using these interfaces has been converted to the syscore ops, prevent new code from using the old API. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-04-06ARM: arch-shmobile: only run FSI init on respective boardsKuninori Morimoto1-5/+3
If several boards are enabled in the kernel configuration, fsi_init_pm_clock() functions from board-ap4evb.c will run on any of them. Prevent this by calling these functions from the .init_machine() callback instead of using device_initcall(). Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Cc: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-04-06ARM: arch-shmobile: only run HDMI init on respective boardsGuennadi Liakhovetski2-13/+8
If several boards are enabled in the kernel configuration, hdmi_init_pm_clock() functions from board-ap4evb.c and board-mackerel.c will run on any of them. Prevent this by calling these functions from the .init_machine() callback instead of using device_initcall(). Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Cc: Magnus Damm <damm@opensource.se> Tested-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-04-06ARM: mach-shmobile: Correctly check for CONFIG_MACH_MACKERELSimon Horman2-2/+2
I made a bit of a thinko when adding Mackerel to the boards that support zboot using MMCIF. Reported-by: Magnus Damm <magnus.damm@gmail.com> Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-04-06KVM: move and fix substitue search for missing CPUID entriesAndre Przywara1-6/+25
If KVM cannot find an exact match for a requested CPUID leaf, the code will try to find the closest match instead of simply confessing it's failure. The implementation was meant to satisfy the CPUID specification, but did not properly check for extended and standard leaves and also didn't account for the index subleaf. Beside that this rule only applies to CPUID intercepts, which is not the only user of the kvm_find_cpuid_entry() function. So fix this algorithm and call it from kvm_emulate_cpuid(). This fixes a crash of newer Linux kernels as KVM guests on AMD Bulldozer CPUs, where bogus values were returned in response to a CPUID intercept. Signed-off-by: Andre Przywara <andre.przywara@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-04-06KVM: fix XSAVE bit scanningAndre Przywara1-3/+3
When KVM scans the 0xD CPUID leaf for propagating the XSAVE save area leaves, it assumes that the leaves are contigious and stops at the first zero one. On AMD hardware there is a gap, though, as LWP uses leaf 62 to announce it's state save area. So lets iterate through all 64 possible leaves and simply skip zero ones to also cover later features. Signed-off-by: Andre Przywara <andre.przywara@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-04-05powerpc/pseries: Fix build without CONFIG_HOTPLUG_CPUMatt Evans1-6/+11
Signed-off-by: Matt Evans <matt@ozlabs.au.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-04-05powerpc: Set nr_cpu_ids early and use it to free PACAsRyan Grimm2-1/+4
Without this, "holes" in the CPU numbering can cause us to free too many PACAs Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-04-05powerpc/pseries: Don't register global initcallBenjamin Herrenschmidt1-1/+1
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-04-05powerpc/kexec: Fix mismatched ifdefs for PPC64/SMP.Paul Gortmaker1-3/+3
Commit b3df895aebe091b1657 "powerpc/kexec: Add support for FSL-BookE" introduced the original PPC_STD_MMU_64 checks around the function crash_kexec_wait_realmode(). Then commit c2be05481f61252 "powerpc: Fix default_machine_crash_shutdown #ifdef botch" changed the ifdef around the calling site to add a check on SMP, but the ifdef around the function itself was left unchanged, leaving an unused function for PPC_STD_MMU_64=y and SMP=n Rather than have two ifdefs that can get out of sync like this, simply put the corrected conditional around the function and use a stub to get rid of one set of ifdefs completely. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-04-05Merge remote branch 'kumar/merge' into mergeBenjamin Herrenschmidt4-19/+19
2011-04-04Merge branch 'next' of git://git.monstr.eu/linux-2.6-microblazeLinus Torvalds6-7/+24
* 'next' of git://git.monstr.eu/linux-2.6-microblaze: microblaze: Fix ftrace microblaze: Wire up new syscalls microblaze: Fix level/edge irq sensibility
2011-04-04Documentation: fix minor typos/spellingSylvestre Ledru2-2/+2
Fix some minor typos: * informations => information * there own => their own * these => this Signed-off-by: Sylvestre Ledru <sylvestre.ledru@scilab.org> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-04-04Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tipLinus Torvalds10-8/+31
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, UV: Fix kdump reboot x86, amd-nb: Rename CPU PCI id define for F4 sound: Add delay.h to sound/soc/codecs/sn95031.c x86, mtrr, pat: Fix one cpu getting out of sync during resume x86, microcode: Unregister syscore_ops after microcode unloaded x86: Stop including <linux/delay.h> in two asm header files
2011-04-04Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tipLinus Torvalds2-0/+6
* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: perf: Fix task_struct reference leak perf: Fix task context scheduling perf: mmap 512 kiB by default perf: Rebase max unprivileged mlock threshold on top of page size perf tools: Fix NO_NEWT=1 python build error perf symbols: Properly align symbol_conf.priv_size perf tools: Emit clearer message for sys_perf_event_open ENOENT return perf tools: Fixup exit path when not able to open events perf symbols: Fix vsyscall symbol lookup oprofile, x86: Allow setting EDGE/INV/CMASK for counter events
2011-04-04Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tipLinus Torvalds1-1/+1
* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: rcu: create new rcu_access_index() and use in mce WARN_ON_SMP(): Add comment to explain ({0;})
2011-04-04Merge branch 'unicore32' of git://git.kernel.org/pub/scm/linux/kernel/git/epip/linux-2.6-unicore32Linus Torvalds10-206/+7
* 'unicore32' of git://git.kernel.org/pub/scm/linux/kernel/git/epip/linux-2.6-unicore32: unicore32 framebuffer fix: get videomemory by __get_free_pages() and make it floatable unicore32 core architecture: remove duplicated #include unicore32 rtc driver fix: cleanup irq_set_freq and irq_set_state unicore32 fix: remove arch-specific futex support unicore32 ldscript fix: add cacheline parameter to PERCPU() macro
2011-04-04x86-32, NUMA: Fix ACPI NUMA init broken by recent x86-64 changeTejun Heo1-1/+3
Commit d8fc3afc49 (x86, NUMA: Move *_numa_init() invocations into initmem_init()) moved acpi_numa_init() call into NUMA initmem_init() but forgot to update 32bit NUMA init breaking ACPI NUMA configuration for 32bit. acpi_numa_init() call was later moved again to srat_64.c. Match it by adding the call to get_memcfg_from_srat() in srat_32.c. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Yinghai Lu <yinghai@kernel.org> Cc: Cyrill Gorcunov <gorcunov@gmail.com> Cc: David Rientjes <rientjes@google.com> Cc: H. Peter Anvin <hpa@linux.intel.com> LKML-Reference: <20110404100645.GE1420@mtj.dyndns.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-04-04x86: visws: Fixup irq overhaul falloutThomas Gleixner1-14/+6
Reported-by: Ian Campbell <Ian.Campbell@eu.citrix.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-04-04powerpc/85xx: Update dts for PCIe memory maps to match u-boot of Px020RDBPrabhakar Kushwaha4-19/+19
PCIe memory address space is 1:1 mapped with u-boot. Update dts of Px020RDB i.e. P1020RDB and P2020RDB to match the address map changes in u-boot. Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-04-04[S390] compile fix for latest binutilsMartin Schwidefsky1-1/+1
The latest binutils won't accept the stfl instruction with march=g5 which is the correct behaviour. Unfortunately head.S is assembled with -march=g5 even if the target cpu is z900 or later. To get 31-bit kernels compiled again the easiest fix is to use the .insn notation for the stfl instruction in head.S. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-04-04[S390] Fix parameter passing for smp_switch_to_cpu()Michael Holzheu2-2/+6
After the execution has been switched to the destination CPU, the target function is called with the wrong parameter. According to the C calling convention on s390, the first parameter should be loaded into register 2. Currently in smp_restart_cpu() it is stored in register 3. To fix this, we load the parameter into the correct register 2. Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-04-04[S390] oprofile s390: prevent stack corruptionJan Glauber1-5/+1
Prevent stack corruption by memcpy which copies more bytes then available at the destination. While at it use the new test_facility to test for the facility bit. Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-04-02unicore32 framebuffer fix: get videomemory by __get_free_pages() and make it floatableGuan Xuetao5-49/+2
1. get videomemory by __get_free_pages() in fb-puv3.c 2. remove resource reservation for old fixed UNIGFX_MMAP & UVC_MMAP space 3. remove unused macros: PKUNTIY_UNIGFX_MMAP_BASE, PKUNITY_UNIGFX_MMAP_SIZE, PKUNITY_UVC_MMAP_BASE, PKUNITY_UVC_MMAP_SIZE and KUSER_UNIGFX_BASE 4. remove unused header linux/vmalloc.h in fb-puv3.h Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn> Acked-by: Arnd Bergmann <arnd@arndb.de>
2011-04-02unicore32 core architecture: remove duplicated #includeHuang Weiyi1-1/+0
Remove duplicated #include('s) in arch/unicore32/kernel/traps.c Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com> Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
2011-04-02unicore32 rtc driver fix: cleanup irq_set_freq and irq_set_stateGuan Xuetao1-9/+0
Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
2011-04-02unicore32 fix: remove arch-specific futex supportGuan Xuetao2-144/+1
The futex functions in unicore32 are not used and verified, so just replaced by asm-generic version. Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn> Acked-by: Arnd Bergmann <arnd@arndb.de>
2011-04-02unicore32 ldscript fix: add cacheline parameter to PERCPU() macroGuan Xuetao1-3/+4
Also, adjust cacheline parameter of RW_DATA_SECTION and EXCEPTION_TABLE Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn> Acked-by: Arnd Bergmann <arnd@arndb.de>
2011-04-01Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6Linus Torvalds1-1/+1
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] fix build warning: argument 1 of 'irqd_irq_disabled'
2011-04-01[IA64] fix build warning: argument 1 of 'irqd_irq_disabled'Tony Luck1-1/+1
In commit f5e5bf088bd3d30990efb7429aaf9f1e5134ffd6 ia64: Use irqd_irq_disabled() instead of desc->status access Thomas forgot to convert from irq to *irq_data. Add a call to irq_get_irq_data() to fix that. Signed-off-by: Tony Luck <tony.luck@intel.com>
2011-04-01Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpcLinus Torvalds12-191/+238
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: kdump: Allow shrinking of kdump region to be overridden powerpc/pmac/smp: Remove no-longer needed preempt workaround powerpc/smp: Increase vdso_data->processorCount, not just decrease it powerpc/smp: Create idle threads on demand and properly reset them powerpc/smp: Don't expose per-cpu "cpu_state" array powerpc/pmac/smp: Fix CPU hotplug crashes on some machines powerpc/smp: Add a smp_ops->bringup_up() done callback powerpc/pmac: Rename cpu_state in therm_pm72 to avoid collision powerpc/pmac/smp: Properly NAP offlined CPU on G5 powerpc/pmac/smp: Remove HMT changes for PowerMac offline code powerpc/pmac/smp: Consolidate 32-bit and 64-bit PowerMac cpu_die in one file powerpc/pmac/smp: Fixup smp_core99_cpu_disable() and use it on 64-bit powerpc/pmac/smp: Rename fixup_irqs() to migrate_irqs() and use it on ppc32 powerpc/pmac/smp: Fix 32-bit PowerMac cpu_die powerpc/smp: Remove unused smp_ops->cpu_enable() powerpc/smp: Remove unused generic_cpu_enable() powerpc/smp: Fix generic_mach_cpu_die() powerpc/smp: soft-replugged CPUs must go back to start_secondary powerpc: Make decrementer interrupt robust against offlined CPUs
2011-04-01Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds15-17/+20
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: sparc32: Pass task_struct to schedule_tail() in ret_from_fork apbuart: Depend upon sparc. sparc64: Fix section mis-match errors. sparc32,leon: Fixed APBUART frequency detection sparc32, leon: APBUART driver must use archdata to get IRQ number sparc: Hook up syncfs system call.
2011-04-01rcu: create new rcu_access_index() and use in mcePaul E. McKenney1-1/+1
The MCE subsystem needs to sample an RCU-protected index outside of any protection for that index. If this was a pointer, we would use rcu_access_pointer(), but there is no corresponding rcu_access_index(). This commit therefore creates an rcu_access_index() and applies it to MCE. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Tested-by: Zdenek Kabelac <zkabelac@redhat.com>
2011-04-01microblaze: Fix ftraceMichal Simek3-4/+13
- Do not trace idle loop which takes a lot time - Fix cache handling in generic ftrace code - Do not trace lib functions ashldi3, ashrdi3, lshrdi3 Functions are called from generic ftrace code which can't be traced Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-04-01microblaze: Wire up new syscallsMichal Simek2-1/+9
Hook up name_to_handle_at, open_by_handle_at, clock_adjtime, syncfs Signed-off-by: Michal Simek <monstr@monstr.eu>
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