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2008-09-05x86: ticket spin locks: reduce instruction dependenciesJan Beulich
Reduce the amount of partial register accesses in the NR_CPUS < 256 case, and slightly weaken resource dependencies in the other case. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-09-05x86: ticket spin locks: factor out more common codeJan Beulich
Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-09-05x86: ticket spin locks: fix asm constraintsJan Beulich
In addition to these changes I doubt the 'volatile' on all the ticket lock asm()-s are really necessary. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-09-05Merge branch 'x86/alternatives' into x86/coreIngo Molnar
2008-09-05Merge commit '63cc8c75156462d4b42cbdd76c293b7eee7ddbfe':Ingo Molnar
"percpu: introduce DEFINE_PER_CPU_PAGE_ALIGNED() macro" into x86/core Conflicts: arch/x86/kernel/cpu/common.c Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-09-05Merge branch 'x86/x2apic' into x86/coreIngo Molnar
Conflicts: arch/x86/kernel/cpu/common_64.c Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-09-05Merge branch 'x86/cpu' into x86/coreIngo Molnar
2008-09-05Merge branch 'x86/xsave' into x86/coreIngo Molnar
2008-09-04x86: make (early)_identify_cpu more the same between 32bit and 64 bitYinghai Lu
1. add extended_cpuid_level for 32bit 2. add generic_identify for 64bit 3. add early_identify_cpu for 32bit 4. early_identify_cpu not be called by identify_cpu 5. remove early in get_cpu_vendor for 32bit 6. add get_cpu_cap 7. add cpu_detect for 64bit Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-09-04Merge branch 'x86/debug' into x86/cpuIngo Molnar
2008-09-04Merge branch 'core/resources' into x86/coreIngo Molnar
2008-09-04IO resources: add reserve_region_with_split()Yinghai Lu
add reserve_region_with_split() to not lose e820 reserved entries if they overlap with existing IO regions: with test case by extend 0xe0000000 - 0xeffffff to 0xdd800000 - we get: e0000000-efffffff : PCI MMCONFIG 0 e0000000-efffffff : reserved and in /proc/iomem we get: found conflict for reserved [dd800000, efffffff], try to reserve with split __reserve_region_with_split: (PCI Bus #80) [dd000000, ddffffff], res: (reserved) [dd800000, efffffff] __reserve_region_with_split: (PCI Bus #00) [de000000, dfffffff], res: (reserved) [de000000, efffffff] initcall pci_subsys_init+0x0/0x121 returned 0 after 381 msecs in dmesg various fixes and improvements suggested by Linus. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-09-04Merge branch 'x86/cpu' into x86/x2apicH. Peter Anvin
Conflicts: arch/x86/kernel/cpu/feature_names.c include/asm-x86/cpufeature.h
2008-09-04Merge branch 'x86/cpu' into x86/xsaveH. Peter Anvin
Conflicts: arch/x86/kernel/cpu/feature_names.c include/asm-x86/cpufeature.h
2008-09-04x86: split e820 reserved entries record to late v2Yinghai Lu
so could let BAR res register at first, or even pnp. v2: insert e820 reserve resources before pnp_system_init Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-09-04Merge branch 'linus' into x86/coreH. Peter Anvin
2008-09-04Merge branch 'x86/cpu' into x86/coreH. Peter Anvin
Conflicts: arch/x86/kernel/cpu/feature_names.c include/asm-x86/cpufeature.h
2008-09-04Merge branch 'linus' into x86/x2apicIngo Molnar
Conflicts: arch/x86/kernel/cpu/cyrix.c include/asm-x86/cpufeature.h Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-09-02Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: ipsec: Fix deadlock in xfrm_state management. ipv: Re-enable IP when MTU > 68 net/xfrm: Use an IS_ERR test rather than a NULL test ath9: Fix ath_rx_flush_tid() for IRQs disabled kernel warning message. ath9k: Incorrect key used when group and pairwise ciphers are different. rt2x00: Compiler warning unmasked by fix of BUILD_BUG_ON mac80211: Fix debugfs union misuse and pointer corruption wireless/libertas/if_cs.c: fix memory leaks orinoco: Multicast to the specified addresses iwlwifi: fix 64bit platform firmware loading iwlwifi: fix apm_stop (wrong bit polarity for FLAG_INIT_DONE) iwlwifi: workaround interrupt handling no some platforms iwlwifi: do not use GFP_DMA in iwl_tx_queue_init net/wireless/Kconfig: clarify the description for CONFIG_WIRELESS_EXT_SYSFS net: Unbreak userspace usage of linux/mroute.h pkt_sched: Fix locking of qdisc_root with qdisc_root_sleeping_lock() ipv6: When we droped a packet, we should return NET_RX_DROP instead of 0
2008-09-02mm: show quicklist usage in /proc/meminfoKOSAKI Motohiro
Quicklists can consume several GB of memory. We should provide a means of monitoring this. After this patch is applied, /proc/meminfo will output the following: % cat /proc/meminfo MemTotal: 7715392 kB MemFree: 5401600 kB Buffers: 80384 kB Cached: 300800 kB SwapCached: 0 kB Active: 235584 kB Inactive: 262656 kB SwapTotal: 2031488 kB SwapFree: 2031488 kB Dirty: 3520 kB Writeback: 0 kB AnonPages: 117696 kB Mapped: 38528 kB Slab: 1589952 kB SReclaimable: 23104 kB SUnreclaim: 1566848 kB PageTables: 14656 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 5889152 kB Committed_AS: 393152 kB VmallocTotal: 17592177655808 kB VmallocUsed: 29056 kB VmallocChunk: 17592177626432 kB Quicklists: 130944 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 262144 kB Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Christoph Lameter <cl@linux-foundation.org> Cc: Keiichiro Tokunaga <tokunaga.keiich@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-09-02Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: ide/Kconfig: mark ide-scsi as deprecated ide-disk: remove stale init_idedisk_capacity() documentation palm_bk3710: improve IDE registration ide: fix hwif_to_node() IDE: palm_bk3710: fix compile warning for unused variable IDE: compile fix for sff_dma_ops
2008-09-02ide: fix hwif_to_node()Bartlomiej Zolnierkiewicz
hwif_to_node() incorrectly assumes that hwif->dev always belongs to a PCI device. This results in ide-cs oopsing in init_irq() after commit c56c5648a3bd15ff14c50f284b261140cd5b5472 accidentally fixed device tree registration for ide-cs. Fix it by using dev_to_node(). Thanks to Martin Michlmayr and Larry Finger for help with debugging the issue. Reported-by: Martin Michlmayr <tbm@cyrius.com> Tested-by: Martin Michlmayr <tbm@cyrius.com> Cc: Larry Finger <Larry.Finger@lwfinger.net> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-09-02IDE: compile fix for sff_dma_opsKevin Hilman
The sff_dma_ops struct should be wrapped by BLK_DEV_IDEDMA_SFF instead of BLK_DEV_IDEDMA_PCI. Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-09-02Merge branch 'for-2.6.27' of git://linux-nfs.org/~bfields/linuxLinus Torvalds
* 'for-2.6.27' of git://linux-nfs.org/~bfields/linux: nfsd: fix buffer overrun decoding NFSv4 acl sunrpc: fix possible overrun on read of /proc/sys/sunrpc/transports nfsd: fix compound state allocation error handling svcrdma: Fix race between svc_rdma_recvfrom thread and the dto_tasklet
2008-08-29Resource handling: add 'insert_resource_expand_to_fit()' functionLinus Torvalds
Not used anywhere yet, but this complements the existing plain 'insert_resource()' functionality with a version that can expand the resource we are adding in order to fix up any conflicts it has with existing resources. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-29net: Unbreak userspace usage of linux/mroute.hDavid S. Miller
Nothing in linux/pim.h should be exported to userspace. This should fix the XORP build failure reported by Jose Calhariz, the debain package maintainer. Nothing originally in linux/mroute.h was exported to userspace ever, but some of this stuff started to be when it was moved into this new linux/pim.h, and that was wrong. If we didn't provide these definitions for 10 years we can reasonably expect that applications defined this stuff locally or used GLIBC headers providing the protocol definitions. And as such the only result of this can be conflict and userland build breakage. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-28Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6: Blackfin arch: Fix PM building on BF52x: No ROTWE on BF52x, add USBWE Blackfin arch: sram: use 'unsigned long' for irqflags Blackfin arch: let PCI depend on BROKEN Blackfin arch: move include/asm-blackfin header files to arch/blackfin Blackfin arch: fix bug - MPU crashes under stress Blackfin arch: Fix bug - when to rmmod the L1_module, it stucks and then reboot the board. Blackfin arch: dont actually need to muck with EMAC_SYSTAT for BF52x for demuxing Blackfin arch: Add MTD Partitions for MTD_DATAFLASH, increase max SPI SCLK
2008-08-28Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: update defconfigs x86: msr: fix bogus return values from rdmsr_safe/wrmsr_safe x86: cpuid: correct return value on partial operations x86: msr: correct return value on partial operations x86: cpuid: propagate error from smp_call_function_single() x86: msr: propagate errors from smp_call_function_single() smp: have smp_call_function_single() detect invalid CPUs
2008-08-28Merge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6Linus Torvalds
* 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6: i2c: Prevent log spam on some DVB adapters i2c: Add missing kerneldoc descriptions i2c: Fix device_init_wakeup place
2008-08-28i2c: Add missing kerneldoc descriptionsJean Delvare
Add missing kernel descriptions of struct i2c_driver members. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Randy Dunlap <rdunlap@xenotime.net> Cc: David Brownell <david-b@pacbell.net>
2008-08-27x86: cpufeature: fix SMX flagH. Peter Anvin
Impact: "smx" flags showed as "safer" in /proc/cpuinfo The SMX feature flag is the so-called "safer mode"... I had put that in quotes, but that flagged it as a cpuinfo flag name. Remove the quotes to correct the flag name in /proc/cpuinfo. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2008-08-27x86: <asm/cpufeature.h>: clean up overlong lines, whitespaceH. Peter Anvin
Clean up overlong lines and stealth whitespace in <asm-x86/cpufeature.h>. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2008-08-27x86: cpufeature: add Intel features from CPUID and AVX specsH. Peter Anvin
Add all Intel CPUID features currently documented in the CPUID spec (AP-485, 241618-032, Dec 2007) and the AVX Programming Reference (319433-003, Aug 2008). Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2008-08-27x86: generate names for /proc/cpuinfo from <asm/cpufeature.h>H. Peter Anvin
We have had a number of cases where <asm/cpufeature.h> (and its predecessors) have diverged substantially from the names list in /proc/cpuinfo. This patch generates the latter from the former. It retains the option for explicitly overriding the strings, but by making that require a separate action it should at least be less likely to happen. It would be good to do a future pass and rename strings that are gratuituously different in the kernel (/proc/cpuinfo is a userspace interface and must remain constant.) Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2008-08-27Merge branch 'x86/urgent' into x86/cpuH. Peter Anvin
Conflicts: arch/x86/kernel/cpu/cyrix.c
2008-08-27Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (55 commits) sctp: fix random memory dereference with SCTP_HMAC_IDENT option. sctp: correct bounds check in sctp_setsockopt_auth_key wan: Missing capability checks in sbni_ioctl() e100, fix iomap read qeth: preallocated header account offset qeth: l2 write unicast list to hardware qeth: use -EOPNOTSUPP instead of -ENOTSUPP. ibm_newemac: Don't call dev_mc_add() before device is registered net: don't grab a mutex within a timer context in gianfar forcedeth: fix checksum flag net/usb/mcs7830: add set_mac_address net/usb/mcs7830: new device IDs [netdrvr] smc91x: fix resource removal (null ptr deref) ibmveth: fix bad UDP checksums [netdrvr] hso: dev_kfree_skb crash fix [netdrvr] hso: icon 322 detection fix atl1: disable TSO by default atl1e: multistatement if missing braces igb: remove 82576 quad adapter drivers/net/skfp/ess.c: fix compile warnings ...
2008-08-27Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: [PATCH] deal with the first call of ->show() generating no output [PATCH] fix ->llseek() for a bunch of directories [PATCH] fix regular readdir() and friends [PATCH] fix hpux_getdents() [PATCH] fix osf_getdirents() [PATCH] ntfs: use d_add_ci [PATCH] change d_add_ci argument ordering [PATCH] fix efs_lookup() [PATCH] proc: inode number fixlet
2008-08-27pkt_sched: Fix sch_tree_lock()Jarek Poplawski
Use new qdisc_root_sleeping_lock() instead of qdisc_root_lock() as sch_tree_lock() because this lock could be used while dev is deactivated, but we never need to use this with noop_qdisc as a root. Signed-off-by: Jarek Poplawski <jarkao2@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-27pkt_sched: Fix gen_estimator locksJarek Poplawski
While passing a qdisc root lock to gen_new_estimator() and gen_replace_estimator() dev could be deactivated or even before grafting proper root qdisc as qdisc_sleeping (e.g. qdisc_create), so using qdisc_root_lock() is not enough. This patch adds qdisc_root_sleeping_lock() for this, plus additional checks, where necessary. Signed-off-by: Jarek Poplawski <jarkao2@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-27block: remove blk_queue_tag_depth() and blk_queue_tag_queue()Jens Axboe
They are unused and ->busy doesn't exist anymore. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-08-27block: rename blk_scsi_cmd_filter to blk_cmd_filterFUJITA Tomonori
Technically, the cmd_filter would be applied to other protocols though it's unlikely to happen. Putting SCSI stuff to request_queue is kinda layer violation. So let's rename it. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-08-27block: move cmdfilter from gendisk to request_queueFUJITA Tomonori
cmd_filter works only for the block layer SG_IO with SCSI block devices. It breaks scsi/sg.c, bsg, and the block layer SG_IO with SCSI character devices (such as st). We hit a kernel crash with them. The problem is that cmd_filter code accesses to gendisk (having struct blk_scsi_cmd_filter) via inode->i_bdev->bd_disk. It works for only SCSI block device files. With character device files, inode->i_bdev leads you to struct cdev. inode->i_bdev->bd_disk->blk_scsi_cmd_filter isn't safe. SCSI ULDs don't expose gendisk; they keep it private. bsg needs to be independent on any protocols. We shouldn't change ULDs to expose their gendisk. This patch moves struct blk_scsi_cmd_filter from gendisk to request_queue, a common object, which eveyone can access to. The user interface doesn't change; users can change the filters via /sys/block/. gendisk has a pointer to request_queue so the cmd_filter code accesses to struct blk_scsi_cmd_filter. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-08-27Blackfin arch: move include/asm-blackfin header files to arch/blackfinBryan Wu
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-08-26Fix userspace export of <linux/net.h>David Woodhouse
Including <linux/fcntl.h> in the user-visible part of this header has caused build regressions with headers from 2.6.27-rc. Move it down to the #ifdef __KERNEL__ part, which is the only place it's needed. Move some other kernel-only things down there too, while we're at it. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-26[MIPS] Wire up new syscalls.Ralf Baechle
signalfd4, eventfd2, epoll_create1, dup3, pipe2 and inotify_init1. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-08-25x86: msr: fix bogus return values from rdmsr_safe/wrmsr_safeH. Peter Anvin
Impact: bogus error codes (+other?) on x86-64 The rdmsr_safe/wrmsr_safe routines have macros for the handling of the edx:eax arguments. Those macros take a variable number of assembly arguments. This is rather inherently incompatible with using %digit-style escapes in the inline assembly; replace those with %[name]-style escapes. This fixes miscompilation on x86-64, which at the very least caused bogus return values. It is possible that this could also corrupt the return value; I am not sure. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2008-08-25x86: msr: propagate errors from smp_call_function_single()H. Peter Anvin
Propagate error (-ENXIO) from smp_call_function_single(). These errors can happen when a CPU is unplugged while the MSR driver is open. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2008-08-25Merge branch 'timers-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: rtc: fix deadlock
2008-08-25Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: add X86_FEATURE_XMM4_2 definitions x86: fix cpufreq + sched_clock() regression x86: fix HPET regression in 2.6.26 versus 2.6.25, check hpet against BAR, v3 x86: do not enable TSC notifier if we don't need it x86 MCE: Fix CPU hotplug problem with multiple multicore AMD CPUs x86: fix: make PCI ECS for AMD CPUs hotplug capable x86: fix: do not run code in amd_bus.c on non-AMD CPUs
2008-08-25Merge branch 'kvm-updates-2.6.27' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm * 'kvm-updates-2.6.27' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm: KVM: fix userspace ABI breakage KVM: MMU: Fix torn shadow pte KVM: Use .fixup instead of .text.fixup on __kvm_handle_fault_on_reboot