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2011-05-20Fix for buffer overflow in ldm_frag_add not sufficientTimo Warns
As Ben Hutchings discovered [1], the patch for CVE-2011-1017 (buffer overflow in ldm_frag_add) is not sufficient. The original patch in commit c340b1d64000 ("fs/partitions/ldm.c: fix oops caused by corrupted partition table") does not consider that, for subsequent fragments, previously allocated memory is used. [1] http://lkml.org/lkml/2011/5/6/407 Reported-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Timo Warns <warns@pre-sense.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-20tmpfs: fix highmem swapoff crash regressionHugh Dickins
Commit 778dd893ae78 ("tmpfs: fix race between umount and swapoff") forgot the new rules for strict atomic kmap nesting, causing WARNING: at arch/x86/mm/highmem_32.c:81 from __kunmap_atomic(), then BUG: unable to handle kernel paging request at fffb9000 from shmem_swp_set() when shmem_unuse_inode() is handling swapoff with highmem in use. My disgrace again. See https://bugzilla.kernel.org/show_bug.cgi?id=35352 Reported-by: Witold Baryluk <baryluk@smp.if.uj.edu.pl> Signed-off-by: Hugh Dickins <hughd@google.com> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-20powerpc: Fix 32-bit SMP buildJosh Boyer
Commit 69e3cea8d5fd526 ("powerpc/smp: Make start_secondary_resume available to all CPU variants") introduced start_secondary_resume to misc_32.S, however it uses a 64-bit instruction which is not valid on 32-bit platforms. Use 'stw' instead. Reported-by: Richard Cochran <richardcochran@gmail.com> Tested-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-20Merge branch 'upstream-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: libata: Power off empty ports libata-pmp: add support for Thermaltake BlackX Duet esata drive dock ATA: Don't powerdown Compaq Triflex IDE device on suspend libata: Use Maximum Write Same Length to report discard size limit drivers/ata/acard-ahci.c: fix enum warning pata_at91: SMC settings calculation bugfixes, support for t6z and IORDY libata-sff: prevent irq descriptions for dummy ports pata_cm64x: fix boot crash on parisc
2011-05-20ipc: Add missing sys_ni entries for ipc/compat.c functionsKevin Cernekee
When building with: CONFIG_64BIT=y CONFIG_MIPS32_COMPAT=y CONFIG_COMPAT=y CONFIG_MIPS32_O32=y CONFIG_MIPS32_N32=y CONFIG_SYSVIPC is not set (and implicitly: CONFIG_SYSVIPC_COMPAT is not set) the final link fails with unresolved symbols for: compat_sys_semctl, compat_sys_msgsnd, compat_sys_msgrcv, compat_sys_shmctl, compat_sys_msgctl, compat_sys_semtimedop The fix is to add cond_syscall declarations for all syscalls in ipc/compat.c Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Acked-by: Ralf Baechle <ralf@linux-mips.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-20Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1446 commits) macvlan: fix panic if lowerdev in a bond tg3: Add braces around 5906 workaround. tg3: Fix NETIF_F_LOOPBACK error macvlan: remove one synchronize_rcu() call networking: NET_CLS_ROUTE4 depends on INET irda: Fix error propagation in ircomm_lmp_connect_response() irda: Kill set but unused variable 'bytes' in irlan_check_command_param() irda: Kill set but unused variable 'clen' in ircomm_connect_indication() rxrpc: Fix set but unused variable 'usage' in rxrpc_get_transport() be2net: Kill set but unused variable 'req' in lancer_fw_download() irda: Kill set but unused vars 'saddr' and 'daddr' in irlan_provider_connect_indication() atl1c: atl1c_resume() is only used when CONFIG_PM_SLEEP is defined. rxrpc: Fix set but unused variable 'usage' in rxrpc_get_peer(). rxrpc: Kill set but unused variable 'local' in rxrpc_UDP_error_handler() rxrpc: Kill set but unused variable 'sp' in rxrpc_process_connection() rxrpc: Kill set but unused variable 'sp' in rxrpc_rotate_tx_window() pkt_sched: Kill set but unused variable 'protocol' in tc_classify() isdn: capi: Use pr_debug() instead of ifdefs. tg3: Update version to 3.119 tg3: Apply rx_discards fix to 5719/5720 ... Fix up trivial conflicts in arch/x86/Kconfig and net/mac80211/agg-tx.c as per Davem.
2011-05-20Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] define "_sdata" symbol pstore: Fix Kconfig dependencies for apei->pstore pstore: fix potential logic issue in pstore read interface pstore: fix pstore filesystem mount/remount issue pstore: fix one type of return value in pstore [IA64] fix build warning in arch/ia64/oprofile/backtrace.c
2011-05-20Merge 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: MAINTAINERS: Add drivers/clocksource to TIMEKEEPING clockevents/source: Use u64 to make 32bit happy
2011-05-20Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: (32 commits) [CIFS] Fix to problem with getattr caused by invalidate simplification patch [CIFS] Remove sparse warning [CIFS] Update cifs to version 1.72 cifs: Change key name to cifs.idmap, misc. clean-up cifs: Unconditionally copy mount options to superblock info cifs: Use kstrndup for cifs_sb->mountdata cifs: Simplify handling of submount options in cifs_mount. cifs: cifs_parse_mount_options: do not tokenize mount options in-place cifs: Add support for mounting Windows 2008 DFS shares cifs: Extract DFS referral expansion logic to separate function cifs: turn BCC into a static inlined function cifs: keep BCC in little-endian format cifs: fix some unused variable warnings in id_rb_search CIFS: Simplify invalidate part (try #5) CIFS: directio read/write cleanups consistently use smb_buf_length as be32 for cifs (try 3) cifs: Invoke id mapping functions (try #17 repost) cifs: Add idmap key and related data structures and functions (try #17 repost) CIFS: Add launder_page operation (try #3) Introduce smb2 mounts as vers=2 ...
2011-05-20Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: extable, core_kernel_data(): Make sure all archs define _sdata core_kernel_data(): Fix architectures that do not define _sdata
2011-05-20Merge branch 'ptrace' of git://git.kernel.org/pub/scm/linux/kernel/git/oleg/miscLinus Torvalds
* 'ptrace' of git://git.kernel.org/pub/scm/linux/kernel/git/oleg/misc: (41 commits) signal: trivial, fix the "timespec declared inside parameter list" warning job control: reorganize wait_task_stopped() ptrace: fix signal->wait_chldexit usage in task_clear_group_stop_trapping() signal: sys_sigprocmask() needs retarget_shared_pending() signal: cleanup sys_sigprocmask() signal: rename signandsets() to sigandnsets() signal: do_sigtimedwait() needs retarget_shared_pending() signal: introduce do_sigtimedwait() to factor out compat/native code signal: sys_rt_sigtimedwait: simplify the timeout logic signal: cleanup sys_rt_sigprocmask() x86: signal: sys_rt_sigreturn() should use set_current_blocked() x86: signal: handle_signal() should use set_current_blocked() signal: sigprocmask() should do retarget_shared_pending() signal: sigprocmask: narrow the scope of ->siglock signal: retarget_shared_pending: optimize while_each_thread() loop signal: retarget_shared_pending: consider shared/unblocked signals only signal: introduce retarget_shared_pending() ptrace: ptrace_check_attach() should not do s/STOPPED/TRACED/ signal: Turn SIGNAL_STOP_DEQUEUED into GROUP_STOP_DEQUEUED signal: do_signal_stop: Remove the unneeded task_clear_group_stop_pending() ...
2011-05-20Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (110 commits) [SCSI] qla2xxx: Refactor call to qla2xxx_read_sfp for thermal temperature. [SCSI] qla2xxx: Unify the read/write sfp mailbox command routines. [SCSI] qla2xxx: Clear complete initialization control block. [SCSI] qla2xxx: Allow an override of the registered maximum LUN. [SCSI] qla2xxx: Add host number in reset and quiescent message logs. [SCSI] qla2xxx: Correctly read sfp single byte mailbox register. [SCSI] qla2xxx: Add qla82xx_rom_unlock() function. [SCSI] qla2xxx: Log if qla82xx firmware fails to load from flash. [SCSI] qla2xxx: Use passed in host to initialize local scsi_qla_host in queuecommand function [SCSI] qla2xxx: Correct buffer start in edc sysfs debug print. [SCSI] qla2xxx: Update firmware version after flash update for ISP82xx. [SCSI] qla2xxx: Fix hang during driver unload when vport is active. [SCSI] qla2xxx: Properly set the dsd_list_len for dsd_chaining in cmd type 6. [SCSI] qla2xxx: Fix virtual port failing to login after chip reset. [SCSI] qla2xxx: Fix vport delete hang when logins are outstanding. [SCSI] hpsa: Change memset using sizeof(ptr) to sizeof(*ptr) [SCSI] ipr: Rate limit DMA mapping errors [SCSI] hpsa: add P2000 to list of shared SAS devices [SCSI] hpsa: do not attempt PCI power management reset method if we know it won't work. [SCSI] hpsa: remove superfluous sleeps around reset code ...
2011-05-20Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmwLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw: (32 commits) GFS2: Move all locking inside the inode creation function GFS2: Clean up symlink creation GFS2: Clean up mkdir GFS2: Use UUID field in generic superblock GFS2: Rename ops_inode.c to inode.c GFS2: Inode.c is empty now, remove it GFS2: Move final part of inode.c into super.c GFS2: Move most of the remaining inode.c into ops_inode.c GFS2: Move gfs2_refresh_inode() and friends into glops.c GFS2: Remove gfs2_dinode_print() function GFS2: When adding a new dir entry, inc link count if it is a subdir GFS2: Make gfs2_dir_del update link count when required GFS2: Don't use gfs2_change_nlink in link syscall GFS2: Don't use a try lock when promoting to a higher mode GFS2: Double check link count under glock GFS2: Improve bug trap code in ->releasepage() GFS2: Fix ail list traversal GFS2: make sure fallocate bytes is a multiple of blksize GFS2: Add an AIL writeback tracepoint GFS2: Make writeback more responsive to system conditions ...
2011-05-20Merge branch 'merge' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (152 commits) powerpc: Fix hard CPU IDs detection powerpc/pmac: Update via-pmu to new syscore_ops powerpc/kvm: Fix the build for 32-bit Book 3S (classic) processors powerpc/kvm: Fix kvmppc_core_pending_dec powerpc: Remove last piece of GEMINI powerpc: Fix for Pegasos keyboard and mouse powerpc: Make early memory scan more resilient to out of order nodes powerpc/pseries/iommu: Cleanup ddw naming powerpc/pseries/iommu: Find windows after kexec during boot powerpc/pseries/iommu: Remove ddw property when destroying window powerpc/pseries/iommu: Add additional checks when changing iommu mask powerpc/pseries/iommu: Use correct return type in dupe_ddw_if_already_created powerpc: Remove unused/obsolete CONFIG_XICS misc: Add CARMA DATA-FPGA Programmer support misc: Add CARMA DATA-FPGA Access Driver powerpc: Make IRQ_NOREQUEST last to clear, first to set powerpc: Integrated Flash controller device tree bindings powerpc/85xx: Create dts of each core in CAMP mode for P1020RDB powerpc/85xx: Fix PCIe IDSEL for Px020RDB powerpc/85xx: P2020 DTS: re-organize dts files ...
2011-05-20spinlock_up.h: include asm/processor.h in for cpu_relaxStephen Rothwell
Commit e66eed651fd1 ("list: remove prefetching from regular list iterators") removed the include of prefetch.h from list.h and this was a path to including asm/processor.h. We need to include it excplicitly now. Fixes this build error on sparc32 (at least): In file included from include/linux/seqlock.h:29, from include/linux/time.h:8, from include/linux/timex.h:56, from include/linux/sched.h:57, from arch/sparc/kernel/asm-offsets.c:13: include/linux/spinlock.h: In function 'spin_unlock_wait': include/linux/spinlock.h:360: error: implicit declaration of function 'cpu_relax Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-20sanitize <linux/prefetch.h> usageLinus Torvalds
Commit e66eed651fd1 ("list: remove prefetching from regular list iterators") removed the include of prefetch.h from list.h, which uncovered several cases that had apparently relied on that rather obscure header file dependency. So this fixes things up a bit, using grep -L linux/prefetch.h $(git grep -l '[^a-z_]prefetchw*(' -- '*.[ch]') grep -L 'prefetchw*(' $(git grep -l 'linux/prefetch.h' -- '*.[ch]') to guide us in finding files that either need <linux/prefetch.h> inclusion, or have it despite not needing it. There are more of them around (mostly network drivers), but this gets many core ones. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-20macvlan: fix panic if lowerdev in a bondEric Dumazet
commit a35e2c1b6d905 (macvlan: use rx_handler_data pointer to store macvlan_port pointer V2) added a bug in macvlan_port_create() Steps to reproduce the bug: # ifenslave bond0 eth0 eth1 # ip link add link eth0 up name eth0#1 type macvlan ->error EBUSY # ip link add link eth0 up name eth0#1 type macvlan ->panic Fix: Dont set IFF_MACVLAN_PORT in error case. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-20[IA64] define "_sdata" symbolTony Luck
core_kernel_data() wants to know if an address looks like kernel data. IA64 has had _edata forever, but never needed _sdata until now. Signed-off-by: Tony Luck <tony.luck@intel.com>
2011-05-20Pull misc-2.6.40 into release branchTony Luck
2011-05-20Pull pstore into release branchTony Luck
2011-05-20pstore: Fix Kconfig dependencies for apei->pstoreLuck, Tony
Geert Uytterhoeven ran a dependency checker which kicked out this warning: + warning: (ACPI_APEI) selects PSTORE which has unmet direct dependencies (MISC_FILESYSTEMS): => N/A Randy confirmed that the fix was to "select MISC_FILESYSTEMS" too. Tested-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2011-05-20[CIFS] Fix to problem with getattr caused by invalidate simplification patchSteve French
Fix to earlier "Simplify invalidate part (try #6)" patch That patch caused problems with connectathon test 5. Reviewed-by: Jeff Layton <jlayton@samba.org> Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Signed-off-by: Steve French <sfrench@us.ibm.com>
2011-05-20MAINTAINERS: Add drivers/clocksource to TIMEKEEPINGThomas Gleixner
It's not a random dump ground and we care about it. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Ralf Baechle <ralf@linux-mips.org>
2011-05-20clockevents/source: Use u64 to make 32bit happyThomas Gleixner
unsigned long is not 64bit on 32bit machine. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-05-20powerpc: Fix hard CPU IDs detectionBenjamin Herrenschmidt
commit 9d07bc841c9779b4d7902e417f4e509996ce805d "powerpc: Properly handshake CPUs going out of boot spin loop" Would cause a miscalculation of the hard CPU ID. It removes breaking out of the loop when finding a match with a processor, thus the "i" used as an index in the intserv array is always incorrect This broke interrupt on my PowerMac laptop. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-05-20extable, core_kernel_data(): Make sure all archs define _sdataSteven Rostedt
A new utility function (core_kernel_data()) is used to determine if a passed in address is part of core kernel data or not. It may or may not return true for RO data, but this utility must work for RW data. Thus both _sdata and _edata must be defined and continuous, without .init sections that may later be freed and replaced by volatile memory (memory that can be freed). This utility function is used to determine if data is safe from ever being freed. Thus it should return true for all RW global data that is not in a module or has been allocated, or false otherwise. Also change core_kernel_data() back to the more precise _sdata condition and document the function. Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Acked-by: Ralf Baechle <ralf@linux-mips.org> Acked-by: Hirokazu Takata <takata@linux-m32r.org> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Matt Turner <mattst88@gmail.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: linux-m68k@lists.linux-m68k.org Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Helge Deller <deller@gmx.de> Cc: JamesE.J.Bottomley <jejb@parisc-linux.org> Link: http://lkml.kernel.org/r/1305855298.1465.19.camel@gandalf.stny.rr.com Signed-off-by: Ingo Molnar <mingo@elte.hu> ---- arch/alpha/kernel/vmlinux.lds.S | 1 + arch/m32r/kernel/vmlinux.lds.S | 1 + arch/m68k/kernel/vmlinux-std.lds | 2 ++ arch/m68k/kernel/vmlinux-sun3.lds | 1 + arch/mips/kernel/vmlinux.lds.S | 1 + arch/parisc/kernel/vmlinux.lds.S | 3 +++ kernel/extable.c | 12 +++++++++++- 7 files changed, 20 insertions(+), 1 deletion(-)
2011-05-20Merge branch 'perf/core' into perf/urgentIngo Molnar
Merge reason: One pending commit was left in perf/core after Linus merged perf/core - continue v2.6.40 work in the perf/urgent reason. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-05-20powerpc/pmac: Update via-pmu to new syscore_opsBenjamin Herrenschmidt
This was left as a sysdev, breaking the build Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-05-20Merge remote branch 'origin/master' into mergeBenjamin Herrenschmidt
Manual merge of arch/powerpc/kernel/smp.c and add missing scheduler_ipi() call to arch/powerpc/platforms/cell/interrupt.c Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-05-20tg3: Add braces around 5906 workaround.Matt Carlson
Commit dabc5c670d3f86d15ee4f42ab38ec5bd2682487d, entitled "tg3: Move TSO_CAPABLE assignment", moved some TSO flagging code around. In the process it failed to add braces around an exceptional 5906 condition. This patch fixes the problem. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-20tg3: Fix NETIF_F_LOOPBACK errorMatt Carlson
Mahesh Bandewar noticed that the features cleanup in commit 0da0606f493c5cdab74bdcc96b12f4305ad94085, entitled "tg3: Consolidate all netdev feature assignments", mistakenly sets NETIF_F_LOOPBACK by default. This patch corrects the error. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: Mahesh Bandewar <maheshb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-20macvlan: remove one synchronize_rcu() callEric Dumazet
When one macvlan device is dismantled, we can avoid one synchronize_rcu() call done after deletion from hash list, since caller will perform a synchronize_net() call after its ndo_stop() call. Add a new netdev->dismantle field to signal this dismantle intent. Reduces RTNL hold time. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Patrick McHardy <kaber@trash.net> CC: Ben Greear <greearb@candelatech.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-19selinux: avoid unnecessary avc cache stat hit countLinus Torvalds
There is no point in counting hits - we can calculate it from the number of lookups and misses. This makes the avc statistics a bit smaller, and makes the code generation better too. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-20Merge remote branch 'kumar/next' into nextBenjamin Herrenschmidt
2011-05-20powerpc/kvm: Fix the build for 32-bit Book 3S (classic) processorsPaul Mackerras
Commits a5d4f3ad3a ("powerpc: Base support for exceptions using HSRR0/1") and 673b189a2e ("powerpc: Always use SPRN_SPRG_HSCRATCH0 when running in HV mode") cause compile and link errors for 32-bit classic Book 3S processors when KVM is enabled. This fixes these errors. Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-05-20powerpc/kvm: Fix kvmppc_core_pending_decPaul Mackerras
The vcpu->arch.pending_exceptions field is a bitfield indexed by interrupt priority number as returned by kvmppc_book3s_vec2irqprio. However, kvmppc_core_pending_dec was using an interrupt vector shifted by 7 as the bit index. Fix it to use the irqprio value for the decrementer interrupt instead. This problem was found by code inspection. Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-05-19selinux: de-crapify avc cache stat code generationLinus Torvalds
You can turn off the avc cache stats, but distributions seem to not do that (perhaps because several performance tuning how-to's talk about the avc cache statistics). Which is sad, because the code it generates is truly horrendous, with the statistics update being sandwitched between get_cpu/put_cpu which in turn causes preemption disables etc. We're talking ten+ instructions just to increment a per-cpu variable in some pretty hot code. Fix the craziness by just using 'this_cpu_inc()' instead. Suddenly we only need a single 'inc' instruction to increment the statistics. This is quite noticeable in the incredibly hot avc_has_perm_noaudit() function (which triggers all the statistics by virtue of doing an avc_lookup() call). Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-19Merge branch 'driver-core-next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6 * 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: (44 commits) debugfs: Silence DEBUG_STRICT_USER_COPY_CHECKS=y warning sysfs: remove "last sysfs file:" line from the oops messages drivers/base/memory.c: fix warning due to "memory hotplug: Speed up add/remove when blocks are larger than PAGES_PER_SECTION" memory hotplug: Speed up add/remove when blocks are larger than PAGES_PER_SECTION SYSFS: Fix erroneous comments for sysfs_update_group(). driver core: remove the driver-model structures from the documentation driver core: Add the device driver-model structures to kerneldoc Translated Documentation/email-clients.txt RAW driver: Remove call to kobject_put(). reboot: disable usermodehelper to prevent fs access efivars: prevent oops on unload when efi is not enabled Allow setting of number of raw devices as a module parameter Introduce CONFIG_GOOGLE_FIRMWARE driver: Google Memory Console driver: Google EFI SMI x86: Better comments for get_bios_ebda() x86: get_bios_ebda_length() misc: fix ti-st build issues params.c: Use new strtobool function to process boolean inputs debugfs: move to new strtobool ... Fix up trivial conflicts in fs/debugfs/file.c due to the same patch being applied twice, and an unrelated cleanup nearby.
2011-05-19signal.h need a definition of struct task_structStephen Rothwell
This fixes these build errors on powerpc: In file included from arch/powerpc/mm/fault.c:18: include/linux/signal.h:239: error: 'struct task_struct' declared inside parameter list include/linux/signal.h:239: error: its scope is only this definition or declaration, which is probably not what you want include/linux/signal.h:240: error: 'struct task_struct' declared inside parameter list .. Exposed by commit e66eed651fd1 ("list: remove prefetching from regular list iterators"), which removed the include of <linux/prefetch.h> from <linux/list.h>. Without that, linux/signal.h no longer accidentally got the declaration of 'struct task_struct'. Fix by properly declaring the struct, rather than introducing any new header file dependency. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-19Merge branch 'core-rcu-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (78 commits) Revert "rcu: Decrease memory-barrier usage based on semi-formal proof" net,rcu: convert call_rcu(prl_entry_destroy_rcu) to kfree batman,rcu: convert call_rcu(softif_neigh_free_rcu) to kfree_rcu batman,rcu: convert call_rcu(neigh_node_free_rcu) to kfree() batman,rcu: convert call_rcu(gw_node_free_rcu) to kfree_rcu net,rcu: convert call_rcu(kfree_tid_tx) to kfree_rcu() net,rcu: convert call_rcu(xt_osf_finger_free_rcu) to kfree_rcu() net/mac80211,rcu: convert call_rcu(work_free_rcu) to kfree_rcu() net,rcu: convert call_rcu(wq_free_rcu) to kfree_rcu() net,rcu: convert call_rcu(phonet_device_rcu_free) to kfree_rcu() perf,rcu: convert call_rcu(swevent_hlist_release_rcu) to kfree_rcu() perf,rcu: convert call_rcu(free_ctx) to kfree_rcu() net,rcu: convert call_rcu(__nf_ct_ext_free_rcu) to kfree_rcu() net,rcu: convert call_rcu(net_generic_release) to kfree_rcu() net,rcu: convert call_rcu(netlbl_unlhsh_free_addr6) to kfree_rcu() net,rcu: convert call_rcu(netlbl_unlhsh_free_addr4) to kfree_rcu() security,rcu: convert call_rcu(sel_netif_free) to kfree_rcu() net,rcu: convert call_rcu(xps_dev_maps_release) to kfree_rcu() net,rcu: convert call_rcu(xps_map_release) to kfree_rcu() net,rcu: convert call_rcu(rps_map_release) to kfree_rcu() ...
2011-05-19Merge branch 'x86-smep-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-smep-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, cpu: Enable/disable Supervisor Mode Execution Protection x86, cpu: Add SMEP CPU feature in CR4 x86, cpufeature: Add cpufeature flag for SMEP
2011-05-19Merge branches 'x86-reboot-for-linus' and 'x86-setup-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-reboot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: Reorder reboot method preferences * 'x86-setup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, setup: Fix EDD3.0 data verification.
2011-05-19Merge branch 'x86-platform-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: Introduce pci_map_biosrom() x86, olpc: Use device tree for platform identification
2011-05-19Merge branch 'x86-mm-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (50 commits) x86, mm: Allow ZONE_DMA to be configurable x86, NUMA: Trim numa meminfo with max_pfn in a separate loop x86, NUMA: Rename setup_node_bootmem() to setup_node_data() x86, NUMA: Enable emulation on 32bit too x86, NUMA: Enable CONFIG_AMD_NUMA on 32bit too x86, NUMA: Rename amdtopology_64.c to amdtopology.c x86, NUMA: Make numa_init_array() static x86, NUMA: Make 32bit use common NUMA init path x86, NUMA: Initialize and use remap allocator from setup_node_bootmem() x86-32, NUMA: Add @start and @end to init_alloc_remap() x86, NUMA: Remove long 64bit assumption from numa.c x86, NUMA: Enable build of generic NUMA init code on 32bit x86, NUMA: Move NUMA init logic from numa_64.c to numa.c x86-32, NUMA: Update numaq to use new NUMA init protocol x86-32, NUMA: Replace srat_32.c with srat.c x86-32, NUMA: implement temporary NUMA init shims x86, NUMA: Move numa_nodes_parsed to numa.[hc] x86-32, NUMA: Move get_memcfg_numa() into numa_32.c x86, NUMA: make srat.c 32bit safe x86, NUMA: rename srat_64.c to srat.c ...
2011-05-19Merge branches 'x86-efi-for-linus', 'x86-gart-for-linus', ↵Linus Torvalds
'x86-irq-for-linus' and 'x86-mce-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, efi: Ensure that the entirity of a region is mapped x86, efi: Pass a minimal map to SetVirtualAddressMap() x86, efi: Merge contiguous memory regions of the same type and attribute x86, efi: Consolidate EFI nx control x86, efi: Remove virtual-mode SetVirtualAddressMap call * 'x86-gart-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, gart: Don't enforce GART aperture lower-bound by alignment * 'x86-irq-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: Don't unmask disabled irqs when migrating them x86: Skip migrating IRQF_PER_CPU irqs in fixup_irqs() * 'x86-mce-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, mce: Drop the default decoding notifier x86, MCE: Do not taint when handling correctable errors
2011-05-19Merge branch 'x86-cpu-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, cpu: Fix detection of Celeron Covington stepping A1 and B0 Documentation, ABI: Update L3 cache index disable text x86, AMD, cacheinfo: Fix L3 cache index disable checks x86, AMD, cacheinfo: Fix fallout caused by max3 conversion x86, cpu: Change NOP selection for certain Intel CPUs x86, cpu: Clean up and unify the NOP selection infrastructure x86, percpu: Use ASM_NOP4 instead of hardcoding P6_NOP4 x86, cpu: Move AMD Elan Kconfig under "Processor family" Fix up trivial conflicts in alternative handling (commit dc326fca2b64 "x86, cpu: Clean up and unify the NOP selection infrastructure" removed some hacky 5-byte instruction stuff, while commit d430d3d7e646 "jump label: Introduce static_branch() interface" renamed HAVE_JUMP_LABEL to CONFIG_JUMP_LABEL in the code that went away)
2011-05-19libata: Power off empty portsKristen Carlson Accardi
Give users the option of completely powering off unoccupied SATA ports using the existing min_power link_power_management_policy option. When the use selects this option on an empty port, we will power the port off by setting DET to off. For occupied ports, behavior is unchanged. Signed-off-by: Kristen Carlson Accardi <kristen@linux.intel.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2011-05-19Merge branches 'x86-apic-for-linus', 'x86-asm-for-linus' and ↵Linus Torvalds
'x86-cleanups-for-linus' of 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: x86, apic: Print verbose error interrupt reason on apic=debug * 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: Demacro CONFIG_PARAVIRT cpu accessors * 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: Fix mrst sparse complaints x86: Fix spelling error in the memcpy() source code comment x86, mpparse: Remove unnecessary variable
2011-05-19libata-pmp: add support for Thermaltake BlackX Duet esata drive dockPavel Herrmann
Some errors still show up, but the dock works, both drives can be accessed at the same time The chip maker and designation is unknown - possibly jmicron JMB350? Signed-off-by: Pavel Herrmann <morpheus.ibis@gmail.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2011-05-19ATA: Don't powerdown Compaq Triflex IDE device on suspendMikulas Patocka
Don't powerdown Compaq Triflex IDE device on suspend This fixes APM suspend on Compaq Armada 7400. APM BIOS doesn't suspend if IDE is powered down when suspending. The Triflex controller is found only on old Compaq boards, so this patch will hopefully have no side effects. Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>