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2009-02-05Merge branch 'upstream-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2 * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2: Revert "configfs: Silence lockdep on mkdir(), rmdir() and configfs_depend_item()"
2009-02-05Merge branch 'sh/for-2.6.29' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 * 'sh/for-2.6.29' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: sh: Fix up T-bit error handling in SH-4A mutex fastpath. sh: Fix up spurious syscall restarting. sh: fcnvds fix with denormalized numbers on SH-4 FPU. sh: Only reserve memory under CONFIG_ZERO_PAGE_OFFSET when it != 0. sh: Handle calling csum_partial with misaligned data sh: ap325rxa: Enable ov772x in defconfig. sh: ap325rxa: Add ov772x support. sh: ap325rxa: control camera power toggling. sh: mach-migor: Enable ov772x and tw9910 in defconfig.
2009-02-05Merge 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: Revert "tcp: Always set urgent pointer if it's beyond snd_nxt" ipv6: Copy cork options in ip6_append_data udp: Fix UDP short packet false positive gianfar: Fix potential soft reset race gianfar: Fix BD_LENGTH_MASK definition cxgb3: Fix lro switch iwlwifi: save PCI state before suspend, restore after resume iwlwifi: clean key table in iwl_clear_stations_table
2009-02-05Revert "tcp: Always set urgent pointer if it's beyond snd_nxt"David S. Miller
This reverts commit 64ff3b938ec6782e6585a83d5459b98b0c3f6eb8. Jeff Chua reports that it breaks rlogin for him. Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-05ipv6: Copy cork options in ip6_append_dataHerbert Xu
As the options passed to ip6_append_data may be ephemeral, we need to duplicate it for corking. This patch applies the simplest fix which is to memdup all the relevant bits. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-05Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
2009-02-05udp: Fix UDP short packet false positiveJesper Dangaard Brouer
The UDP header pointer assignment must happen after calling pskb_may_pull(). As pskb_may_pull() can potentially alter the SKB buffer. This was exposted by running multicast traffic through the NIU driver, as it won't prepull the protocol headers into the linear area on receive. Signed-off-by: Jesper Dangaard Brouer <hawk@comx.dk> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-05seq_file: fix big-enough lseek() + read()Alexey Dobriyan
lseek() further than length of the file will leave stale ->index (second-to-last during iteration). Next seq_read() will not notice that ->f_pos is big enough to return 0, but will print last item as if ->f_pos is pointing to it. Introduced in commit cb510b8172602a66467f3551b4be1911f5a7c8c2 aka "seq_file: more atomicity in traverse()". Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-05x86: clean up arch/x86/Kconfig*Ingo Molnar
- Consistent alignment of help text - Use the ---help--- keyword everywhere consistently as a visual separator - fix whitespace mismatches Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-05x86, numaq: cleanupsIngo Molnar
Also move xquad_portio over to where it's allocated. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-05Merge branch 'x86/urgent' into x86/apicIngo Molnar
Conflicts: arch/x86/mach-default/setup.c Semantic merge: arch/x86/kernel/irqinit_32.c Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-05smp, generic: introduce arch_disable_smp_support(), build fixIngo Molnar
This function should be provided on UP too. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-05x86: move default_ipi_xx back to ipi.cYinghai Lu
Impact: cleanup only leave _default_ipi_xx etc in .h Beyond the cleanup factor, this saves a bit of code size as well: text data bss dec hex filename 7281931 1630144 1463304 10375379 9e50d3 vmlinux.before 7281753 1630144 1463304 10375201 9e5021 vmlinux.after Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-05x86, apic: explain the purpose of max_physical_apicidIngo Molnar
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-05smp, generic: introduce arch_disable_smp_support() instead of ↵Ingo Molnar
disable_ioapic_setup() Impact: cleanup disable_ioapic_setup() in init/main.c is ugly as the function is x86-specific. The #ifdef inline prototype there is ugly too. Replace it with a generic arch_disable_smp_support() function - which has a weak alias for non-x86 architectures and for non-ioapic x86 builds. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-05seq_file: move traverse so it can be used from seq_readEric Biederman
In 2.6.25 some /proc files were converted to use the seq_file infrastructure. But seq_files do not correctly support pread(), which broke some usersapce applications. To handle pread correctly we can't assume that f_pos is where we left it in seq_read. So move traverse() so that we can eventually use it in seq_read and do thus some day support pread(). Signed-off-by: Eric Biederman <ebiederm@xmission.com> Cc: Paul Turner <pjt@google.com> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-05sgi-xp: fix writing past the end of kzalloc()'d spaceDean Nelson
A missing type cast results in writing way beyond the end of a kzalloc()'d memory segment resulting in slab corruption. But it seems like the better solution is to define ->recv_msg_slots as a 'void *' rather than a 'struct xpc_notify_mq_msg_uv *' and add the type cast. Signed-off-by: Dean Nelson <dcn@sgi.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-05alpha: fixup BUG macroAlexey Dobriyan
Do usual do {} while (0) dance, otherwise fs/gfs2/util.c:99: error: expected expression before 'else' drivers/scsi/lpfc/lpfc_sli.c:363: error: expected expression before 'else' Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Acked-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Richard Henderson <rth@twiddle.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-05sx.c: fix missed unlock_kernel() on error path in sx_fw_ioctl()Dan Carpenter
If we return directly with -EPERM then lock_kernel() is still held. This was found with a code checker (http://repo.or.cz/w/smatch.git/). [akpm@linux-foundation.org: fix another such path - missed func_exit()] Signed-off-by: Dan Carpenter <error27@gmail.com> Cc: <R.E.Wolff@BitWizard.nl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-05atyfb: fix CONFIG_ namespace violationsRandy Dunlap
Fix namespace violations by changing non-kconfig CONFIG_ names to CNFG_*. Fixes breakage in staging/, which adds a real CONFIG_PANEL. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-05rtc-ds1390: fix compilation warnings in drivers/rtc/rtc-ds1390.cManish Katiyar
drivers/rtc/rtc-ds1390.c:125: warning: unused variable 'rtc' Signed-off-by: Manish Katiyar <mkatiyar@gmail.com> Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-05drivers/video/backlight: rename da903x to da903x_blMike Rapoport
Currently both da903x backlight and voltage reulator drivers have the same name. Rename the backlight driver to allow use of both drivers as modules. Signed-off-by: Mike Rapoport <mike@compulab.co.il> Acked-by: Eric Miao <eric.miao@marvell.com> Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-05atmel-ssc: fix misuse of dev_dbg when requested ssc instance is not foundHans-Christian Egtvedt
The ssc pointer is not valid when the id is not found in the list. Convert the message from a debug one into an error message and avoid dereferencing the bad pointer. Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> Cc: Kay Sievers <kay.sievers@vrfy.org> Cc: Huang Weiyi <weiyi.huang@gmail.com> Acked-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-05do_wp_page: fix regression with execute in placeCarsten Otte
Fix do_wp_page for VM_MIXEDMAP mappings. In the case where pfn_valid returns 0 for a pfn at the beginning of do_wp_page and the mapping is not shared writable, the code branches to label `gotten:' with old_page == NULL. In case the vma is locked (vma->vm_flags & VM_LOCKED), lock_page, clear_page_mlock, and unlock_page try to access the old_page. This patch checks whether old_page is valid before it is dereferenced. The regression was introduced by "mlock: mlocked pages are unevictable" (commit b291f000393f5a0b679012b39d79fbc85c018233). Signed-off-by: Carsten Otte <cotte@de.ibm.com> Cc: Nick Piggin <npiggin@suse.de> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: <stable@kernel.org> [2.6.28.x] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-05wait: prevent exclusive waiter starvationJohannes Weiner
With exclusive waiters, every process woken up through the wait queue must ensure that the next waiter down the line is woken when it has finished. Interruptible waiters don't do that when aborting due to a signal. And if an aborting waiter is concurrently woken up through the waitqueue, noone will ever wake up the next waiter. This has been observed with __wait_on_bit_lock() used by lock_page_killable(): the first contender on the queue was aborting when the actual lock holder woke it up concurrently. The aborted contender didn't acquire the lock and therefor never did an unlock followed by waking up the next waiter. Add abort_exclusive_wait() which removes the process' wait descriptor from the waitqueue, iff still queued, or wakes up the next waiter otherwise. It does so under the waitqueue lock. Racing with a wake up means the aborting process is either already woken (removed from the queue) and will wake up the next waiter, or it will remove itself from the queue and the concurrent wake up will apply to the next waiter after it. Use abort_exclusive_wait() in __wait_event_interruptible_exclusive() and __wait_on_bit_lock() when they were interrupted by other means than a wake up through the queue. [akpm@linux-foundation.org: coding-style fixes] Reported-by: Chris Mason <chris.mason@oracle.com> Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Mentored-by: Oleg Nesterov <oleg@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Matthew Wilcox <matthew@wil.cx> Cc: Chuck Lever <cel@citi.umich.edu> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Cc: Ingo Molnar <mingo@elte.hu> Cc: <stable@kernel.org> ["after some testing"] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-05maintainers: general@lists.openfabrics.org is moderatedRandy Dunlap
I got the "list is moderated message," so add it here. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-05lis3lv02d: add axes knowledge for HP 6710Martin Kebert
Add support for the HP laptops of model 6710x for having correctly setup axes. Signed-off-by: Martin Kebert <gkmarty@gmail.com> Signed-off-by: Eric Piel <eric.piel@tremplin-utc.net> Acked-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-05lis3lv02d: add axes knowledge for HP 6730Pavel Herrmann
Add support for the HP laptops of model 6730x for having correctly setup axes. Signed-off-by: Pavel Herrmann <morpheus.ibis@gmail.com> Signed-off-by: Eric Piel <eric.piel@tremplin-utc.net> Acked-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-05lis3lv02d: add axes knowledge for HP 6530Eric Piel
Add support for the HP laptops of model 6530x for having correctly setup axes. Reported-by: Jerome Poulin <jeromepoulin@gmail.com> Signed-off-by: Eric Piel <eric.piel@tremplin-utc.net> Acked-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-05lis3lv02d: add axes knowledge for HP 6510bJiri Tersel
According to dmesg my laptop model HP 6510b is not being recognized by this driver. After I have modified "lis3lv02d.c" axes in Neverball are OK. Signed-off-by: Jiri Tersel <tersel@mail.muni.cz> Signed-off-by: Eric Piel <eric.piel@tremplin-utc.net> Acked-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-05hp-wmi: fix error path in hp_wmi_bios_setup()Andrew Morton
The error-path code can call rfkill_unregister() with a pointer which does not contain the result of a call to rfkill_register(). It goes BUG(). Addresses http://bugzilla.kernel.org/show_bug.cgi?id=12560. Cc: Frans Pop <elendil@planet.nl> Cc: Larry Finger <Larry.Finger@lwfinger.net> Cc: Len Brown <lenb@kernel.org> Acked-by: Matthew Garrett <mjg@redhat.com> Reported-by: Helge Deller <deller@gmx.de> Testted-by: Helge Deller <deller@gmx.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-05revert "rlimit: permit setting RLIMIT_NOFILE to RLIM_INFINITY"Andrew Morton
Revert commit 0c2d64fb6cae9aae480f6a46cfe79f8d7d48b59f because it causes (arguably poorly designed) existing userspace to spend interminable periods closing billions of not-open file descriptors. We could bring this back, with some sort of opt-in tunable in /proc, which defaults to "off". Peter's alanysis follows: : I spent several hours trying to get to the bottom of a serious : performance issue that appeared on one of our servers after upgrading to : 2.6.28. In the end it's what could be considered a userspace bug that : was triggered by a change in 2.6.28. Since this might also affect other : people I figured I'd at least document what I found here, and maybe we : can even do something about it: : : : So, I upgraded some of debian.org's machines to 2.6.28.1 and immediately : the team maintaining our ftp archive complained that one of their : scripts that previously ran in a few minutes still hadn't even come : close to being done after an hour or so. Downgrading to 2.6.27 fixed : that. : : Turns out that script is forking a lot and something in it or python or : whereever closes all the file descriptors it doesn't want to pass on. : That is, it starts at zero and goes up to ulimit -n/RLIMIT_NOFILE and : closes them all with a few exceptions. : : Turns out that takes a long time when your limit -n is now 2^20 (1048576). : : With 2.6.27.* the ulimit -n was the standard 1024, but with 2.6.28 it is : now a thousand times that. : : 2.6.28 included a patch titled "rlimit: permit setting RLIMIT_NOFILE to : RLIM_INFINITY" (0c2d64fb6cae9aae480f6a46cfe79f8d7d48b59f)[1] that : allows, as the title implies, to set the limit for number of files to : infinity. : : Closer investigation showed that the broken default ulimit did not apply : to "system" processes (like stuff started from init). In the end I : could establish that all processes that passed through pam_limit at one : point had the bad resource limit. : : Apparently the pam library in Debian etch (4.0) initializes the limits : to some default values when it doesn't have any settings in limit.conf : to override them. Turns out that for nofiles this is RLIM_INFINITY. : Commenting out "case RLIMIT_NOFILE" in pam_limit.c:267 of our pam : package version 0.79-5 fixes that - tho I'm not sure what side effects : that has. : : Debian lenny (the upcoming 5.0 version) doesn't have this issue as it : uses a different pam (version). Reported-by: Peter Palfrader <weasel@debian.org> Cc: Adam Tkac <vonsch@gmail.com> Cc: Michael Kerrisk <mtk.manpages@googlemail.com> Cc: <stable@kernel.org> [2.6.28.x] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-05shm: fix shmctl(SHM_INFO) lockup with !CONFIG_SHMEMTony Battersby
shm_get_stat() assumes that the inode is a "struct shmem_inode_info", which is incorrect for !CONFIG_SHMEM (see fs/ramfs/inode.c: ramfs_get_inode() vs. mm/shmem.c: shmem_get_inode()). This bad assumption can cause shmctl(SHM_INFO) to lockup when shm_get_stat() tries to spin_lock(&info->lock). Users of !CONFIG_SHMEM may encounter this lockup simply by invoking the 'ipcs' command. Reported by Jiri Olsa back in February 2008: http://lkml.org/lkml/2008/2/29/74 Signed-off-by: Tony Battersby <tonyb@cybernetics.com> Cc: Jiri Kosina <jkosina@suse.cz> Reported-by: Jiri Olsa <olsajiri@gmail.com> Cc: Hugh Dickins <hugh@veritas.com> Cc: <stable@kernel.org> [2.6.everything] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-05fbmem: don't call copy_from/to_user() with mutex heldAndrea Righi
Avoid calling copy_from/to_user() with fb_info->lock mutex held in fbmem ioctl(). fb_mmap() is called under mm->mmap_sem (A) held, that also acquires fb_info->lock (B); fb_ioctl() takes fb_info->lock (B) and does copy_from/to_user() that might acquire mm->mmap_sem (A), causing a deadlock. NOTE: it doesn't push down the fb_info->lock in each own driver's fb_ioctl(), so there are still potential deadlocks elsewhere. Signed-off-by: Andrea Righi <righi.andrea@gmail.com> Cc: Dave Jones <davej@redhat.com> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: Johannes Weiner <hannes@saeurebad.de> Cc: Krzysztof Helt <krzysztof.h1@wp.pl> Cc: Harvey Harrison <harvey.harrison@gmail.com> Cc: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-05rtc: rtc-dm355evm driverDavid Brownell
Simple RTC driver for the MSP430 firmware on the DM355 EVM board. Other than not supporting atomic reads/writes of all four bytes, this is reasonable as a basic no-alarm RTC. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Acked-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-05misc: dell-laptop should depend on POWER_SUPPLYMatthew Garrett
dell-laptop makes use of the power supply class information to choose which backlight interface to change. Add a depends on it. Signed-off-by: Matthew Garrett <mjg@redhat.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: Len Brown <lenb@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-05generic swap(): don't return a value from swap()Peter Zijlstra
The swap() macro is accidentally retuning the value of its first argument. Change it into a doesn't-return-anything macro before someone goes and relies upon this behaviour. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Wu Fengguang <wfg@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-05hpilo: open/close fixDavid Altobelli
The device can take a while to respond to an open/close request, so increase the time kernel will wait for response (1 ms to 10ms). Also, properly clean up a channel on a failed open, by calling the channel close routine. Just freeing the memory isn't sufficient, the device needs to be informed that the channel is no longer open, and the device memory cleared of references to freed dma buffer. Signed-off-by: David Altobelli <david.altobelli@hp.com> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-05kernel/async.c: fix printk warningsAndrew Morton
alpha: kernel/async.c: In function 'run_one_entry': kernel/async.c:141: warning: format '%lli' expects type 'long long int', but argument 2 has type 'async_cookie_t' kernel/async.c:149: warning: format '%lli' expects type 'long long int', but argument 2 has type 'async_cookie_t' kernel/async.c:149: warning: format '%lld' expects type 'long long int', but argument 4 has type 's64' kernel/async.c: In function 'async_synchronize_cookie_special': kernel/async.c:250: warning: format '%lli' expects type 'long long int', but argument 3 has type 's64' Cc: Arjan van de Ven <arjan@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-05modpost: NOBITS sections may point beyond the end of the fileTejun Heo
Impact: fix link failure on certain toolchains with specific configs Recent percpu change made x86_64 split .data.init section into three separate segments - data.init, percpu and data.init2. data.init2 gets .data.nosave and .bss.* and is followed by .notes segment. Depending on configuration both segments might contain no data, in which case the tool chain makes the section header to contain offset beyond the end of the file. modpost isn't too happy about it and fails build - as reported by Pawel Dziekonski: Building modules, stage 2. MODPOST 416 modules FATAL: vmlinux is truncated. sechdrs[i].sh_offset=10354688 > sizeof(*hrd)=64 make[1]: *** [__modpost] Error 1 Teach modpost that NOBITS section may point beyond the end of the file and that .modinfo can't be NOBITS. Reported-by: Pawel Dziekonski <dzieko@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-05x86: style cleanups for xen assembliesTejun Heo
Make the following style cleanups: * drop unnecessary //#include from xen-asm_32.S * compulsive adding of space after comma * reformat multiline comments Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-05[CPUFREQ] powernow-k8: Get transition latency from ACPI _PSS tableMark Langsdorf
At this time, the PowerNow! driver for K8 uses an experimentally derived formula to calculate transition latency. The value it provides is orders of magnitude too large on modern systems. This patch replaces the formula with ACPI _PSS latency values for more accuracy and better performance. I've tested it on two 2nd generation Opteron systems, a 3rd generation Operton system, and a Turion X2 without seeing any stability problems. Signed-off-by: Mark Langsdorf <mark.langsdorf@amd.com> Signed-off-by: Thomas Renninger <trenn@suse.de> Signed-off-by: Dave Jones <davej@redhat.com>
2009-02-05[CPUFREQ] Make ignore_nice_load setting of ondemand work as expected.Venkatesh Pallipadi
ondemand micro-accounting of idle time changes broke ignore_nice_load sysfs setting due to a thinko in the code. The bug entry: http://bugzilla.kernel.org/show_bug.cgi?id=12310 Reported-by: Jim Bray <jimsantelmo@gmail.com> Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Dave Jones <davej@redhat.com>
2009-02-05x86: disable intel_iommu support by defaultKyle McMartin
Due to recurring issues with DMAR support on certain platforms. There's a number of filesystem corruption incidents reported: https://bugzilla.redhat.com/show_bug.cgi?id=479996 http://bugzilla.kernel.org/show_bug.cgi?id=12578 Provide a Kconfig option to change whether it is enabled by default. If disabled, it can still be reenabled by passing intel_iommu=on to the kernel. Keep the .config option off by default. Signed-off-by: Kyle McMartin <kyle@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-By: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-05Merge branch 'tj-percpu' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc into core/percpu
2009-02-05Btrfs: Fix memory leak in cache_drop_leaf_refChris Mason
The code wasn't doing a kfree on the sorted array Signed-off-by: Chris Mason <chris.mason@oracle.com>
2009-02-05timers: split process wide cpu clocks/timersPeter Zijlstra
Change the process wide cpu timers/clocks so that we: 1) don't mess up the kernel with too many threads, 2) don't have a per-cpu allocation for each process, 3) have no impact when not used. In order to accomplish this we're going to split it into two parts: - clocks; which can take all the time they want since they run from user context -- ie. sys_clock_gettime(CLOCK_PROCESS_CPUTIME_ID) - timers; which need constant time sampling but since they're explicity used, the user can pay the overhead. The clock readout will go back to a full sum of the thread group, while the timers will run of a global 'clock' that only runs when needed, so only programs that make use of the facility pay the price. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Reviewed-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-05signal: re-add dead task accumulation stats.Peter Zijlstra
We're going to split the process wide cpu accounting into two parts: - clocks; which can take all the time they want since they run from user context. - timers; which need constant time tracing but can affort the overhead because they're default off -- and rare. The clock readout will go back to a full sum of the thread group, for this we need to re-add the exit stats that were removed in the initial itimer rework (f06febc9: timers: fix itimer/many thread hang). Furthermore, since that full sum can be rather slow for large thread groups and we have the complete dead task stats, revert the do_notify_parent time computation. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Reviewed-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-05Merge branch 'sched/urgent' into timers/urgentIngo Molnar
Merging it here because an upcoming timers/urgent fix relies on a change already in sched/urgent and not yet upstream. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-05ALSA: hda - Fix misc workqueue issuesTakashi Iwai
Some fixes regarding snd-hda-intel workqueue: - Use create_singlethread_workqueue() instead of create_workqueue() as per-CPU work isn't required. - Allocate workq name string properly - Renamed the workq name to "hd-audio*" to be more obvious. Signed-off-by: Takashi Iwai <tiwai@suse.de>
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