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2009-01-30hrtimers: allow the hot-unplugging of all cpusSebastien Dugue
Impact: fix CPU hotplug hang on Power6 testbox On architectures that support offlining all cpus (at least powerpc/pseries), hot-unpluging the tick_do_timer_cpu can result in a system hang. This comes from the fact that if the cpu going down happens to be the cpu doing the tick, then as the tick_do_timer_cpu handover happens after the cpu is dead (via the CPU_DEAD notification), we're left without ticks, jiffies are frozen and any task relying on timers (msleep, ...) is stuck. That's particularly the case for the cpu looping in __cpu_die() waiting for the dying cpu to be dead. This patch addresses this by having the tick_do_timer_cpu handover happen earlier during the CPU_DYING notification. For this, a new clockevent notification type is introduced (CLOCK_EVT_NOTIFY_CPU_DYING) which is triggered in hrtimer_cpu_notify(). Signed-off-by: Sebastien Dugue <sebastien.dugue@bull.net> Cc: <stable@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-30hrtimers: increase clock min delta threshold while interrupt hangingFrederic Weisbecker
Impact: avoid timer IRQ hanging slow systems While using the function graph tracer on a virtualized system, the hrtimer_interrupt can hang the system on an infinite loop. This can be caused in several situations: - the hardware is very slow and HZ is set too high - something intrusive is slowing the system down (tracing under emulation) ... and the next clock events to program are always before the current time. This patch implements a reasonable compromise: if such a situation is detected, we share the CPUs time in 1/4 to process the hrtimer interrupts. This is enough to let the system running without serious starvation. It has been successfully tested under VirtualBox with 1000 HZ and 100 HZ with function graph tracer launched. On both cases, the clock events were increased until about 25 ms periodic ticks, which means 40 HZ. So we change a hard to debug hang into a warning message and a system that still manages to limp along. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-29Merge 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: cifs: make sure we allocate enough storage for socket address [CIFS] Make socket retry timeouts consistent between blocking and nonblocking cases [CIFS] some cleanup to dir.c prior to addition of posix_open [CIFS] revalidate parent inode when rmdir done within that directory [CIFS] Rename md5 functions to avoid collision with new rt modules cifs: turn smb_send into a wrapper around smb_sendv
2009-01-29sata_sil: Fix build breakageAlexander Beregalov
Commit e57db7b (SATA Sil: Blacklist system that spins off disks during ACPI power off) breaks build like the following, in both cases when CONFIG_DMI set or not. drivers/ata/sata_sil.c: In function 'sil_broken_system_poweroff': drivers/ata/sata_sil.c:713: error: implicit declaration of function 'dmi_first_match' drivers/ata/sata_sil.c:713: warning: initialization makes pointer from integer without a cast sata_sil.c should include dmi.h Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-29Documentation/Changes: add required versions for new filesystemsBill Nottingham
btrfs requires version 0.18 of its tools, and squashfs requires 4.0. ext3 should use and ext4 requires v1.41.4 of e2fsprogs. Signed-off-by: Bill Nottingham <notting@redhat.com> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> cc: Ted Tso <tytso@mit.edu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-29fix emacs indenting howto filename expansionDan Carpenter
I don't think emacs understands tilde expansion, so use "expand-file-name" to do that. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-29Documentation: update CodingStyle tips for Emacs usersTeemu Likonen
With the previous Emacs tips example the kernel style was made available for files in the kernel-tree only. This patch updates the tip to add a separate cc-mode indent style ("linux-tabs-only"). This makes it easy to switch between different indent styles and also makes the kernel style easily available for any filetype mode (c++, awk, ...) that is managed by the Emacs cc-mode. Signed-off-by: Teemu Likonen <tlikonen@iki.fi> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-29Documentation: move DMA-mapping.txt to Doc/PCI/Randy Dunlap
Move DMA-mapping.txt to Documentation/PCI/. DMA-mapping.txt was supposed to be moved from Documentation/ to Documentation/PCI/. The 00-INDEX files in those two directories were updated, along with a few other text files, but the file itself somehow escaped being moved, so move it and update more text files and source files with its new location. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> cc: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-29Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6: Staging: poch: fix verification of memory area Staging: usbip: usbip_start_threads(): handle kernel_thread failure staging: agnx: drivers/staging/agnx/agnx.h needs <linux/io.h> Staging: android: task_get_unused_fd_flags: fix the wrong usage of tsk->signal Staging: android: Add lowmemorykiller documentation. Staging: android: fix build error on 64bit boxes Staging: android: timed_gpio: Fix build to build on kernels after 2.6.25. Staging: android: binder: fix arm build errors Staging: meilhaus: fix Kbuild Staging: comedi: fix Kbuild
2009-01-29Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: driver-core: fix kernel-doc parameter name UIO: Add missing documentation of features added recently Sync patch for jp_JP/stable_kernel_rules.txt
2009-01-29Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: ASoC: OMAP: Initialize XCCR and RCCR registers in McBSP DAI driver ASoC: Fix null string usage with WM8753 DAIs ALSA: hda - add another MacBook Pro 4, 1 subsystem ID ALSA: hda - Fix compile warning with CONFIG_SND_JACK=n ALSA: hda - Add quirk for HP DV6700 laptop ALSA: hda - Fix PCM reference NID for STAC/IDT analog outputs
2009-01-29Merge branch 'linux-next' of git://git.infradead.org/ubi-2.6Linus Torvalds
* 'linux-next' of git://git.infradead.org/ubi-2.6: UBI: allow direct user-space I/O UBI: fix resource de-allocation UBI: remove unused variable UBI: use nicer 64-bit math UBI: add ioctl compatibility UBI: constify file operations UBI: allow all ioctls UBI: remove unnecessry header inclusion UBI: improve ioctl commentaries UBI: add ioctl for is_mapped operation UBI: add ioctl for unmap operation UBI: add ioctl for map operation
2009-01-29Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: HID: document difference between hid_blacklist and hid_ignore_list HID: add antec-branded soundgraph imon devices to blacklist HID: fix reversed logic in disconnect testing of hiddev HID: adjust report descriptor fixup for MS 1028 receiver
2009-01-29Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linusLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus: lguest: Fix a memory leak with the lg object during launcher close lguest: disable the FORTIFY for lguest. lguest: typos fix
2009-01-29Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6: ieee1394: sbp2: add workarounds for 2nd and 3rd generation iPods firewire: sbp2: add workarounds for 2nd and 3rd generation iPods firewire: sbp2: fix DMA mapping leak on the failure path firewire: sbp2: define some magic numbers as macros firewire: sbp2: fix payload limit at S1600 and S3200 ieee1394: sbp2: don't assume zero model_id or firmware_revision if there is none ieee1394: sbp2: fix payload limit at S1600 and S3200 ieee1394: sbp2: update a help string ieee1394: support for speeds greater than S800 firewire: core: optimize card shutdown ieee1394: ohci1394: increase AT req. retries, fix ack_busy_X from Panasonic camcorders and others firewire: ohci: increase AT req. retries, fix ack_busy_X from Panasonic camcorders and others firewire: ohci: change "context_stop: still active" log message firewire: keep highlevel drivers attached during brief connection loss firewire: unnecessary BM delay after generation rollover firewire: insist on successive self ID complete events
2009-01-29drivers/gpu/drm/i915/intel_lvds.c: fix locking snafuAndrew Morton
s/unlock/lock/ Addresses http://bugzilla.kernel.org/show_bug.cgi?id=12575 Reported-by: Daniel Vetter <daniel@ffwll.ch> Cc: Dave Airlie <airlied@linux.ie> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> Cc: Eric Anholt <eric@anholt.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-29epoll: drop max_user_instances and rely only on max_user_watchesDavide Libenzi
Linus suggested to put limits where the money is, and max_user_watches already does that w/out the need of max_user_instances. That has the advantage to mitigate the potential DoS while allowing pretty generous default behavior. Allowing top 4% of low memory (per user) to be allocated in epoll watches, we have: LOMEM MAX_WATCHES (per user) 512MB ~178000 1GB ~356000 2GB ~712000 A box with 512MB of lomem, will meet some challenge in hitting 180K watches, socket buffers math teaches us. No more max_user_instances limits then. Signed-off-by: Davide Libenzi <davidel@xmailserver.org> Cc: Willy Tarreau <w@1wt.eu> Cc: Michael Kerrisk <mtk.manpages@googlemail.com> Cc: Bron Gondwana <brong@fastmail.fm> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-29hp-wmi: set initial docking stateFrans Pop
If the initial state is not set when the input device is set up, the first docking event after the module is loaded will be lost. Signed-off-by: Frans Pop <elendil@planet.nl> Acked-by: Matthew Garrett <mjg59@srcf.ucam.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-29hwmon: applesmc: add support for MacPro 3 temperature sensorsBharath Ramesh
MacPro 3 have more temperature sensors than the previous MacPro's also the sensor THTG has been removed. This patch add supports for the newer temperature sensors in the MacPro3. Signed-off-by: Bharath Ramesh <bramesh@vt.edu> Signed-off-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-29hpilo: increment versionDavid Altobelli
Bump hpilo module version to indicate that the open/close bug is fixed. Signed-off-by: David Altobelli <david.altobelli@hp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-29cgroup: fix root_count when mount fails due to busy subsystemPaul Menage
root_count was being incremented in cgroup_get_sb() after all error checking was complete, but decremented in cgroup_kill_sb(), which can be called on a superblock that we gave up on due to an error. This patch changes cgroup_kill_sb() to only decrement root_count if the root was previously linked into the list of roots. Signed-off-by: Paul Menage <menage@google.com> Tested-by: Serge Hallyn <serue@us.ibm.com> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-29cgroups: add cpu_relax() calls in css_tryget() and cgroup_clear_css_refs()Paul Menage
css_tryget() and cgroup_clear_css_refs() contain polling loops; these loops should have cpu_relax calls in them to reduce cross-cache traffic. Signed-off-by: Paul Menage <menage@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-29cgroups: fix lock inconsistency in cgroup_clone()Li Zefan
I fixed a bug in cgroup_clone() in Linus' tree in commit 7b574b7 ("cgroups: fix a race between cgroup_clone and umount") without noticing there was a cleanup patch in -mm tree that should be rebased (now commit 104cbd5, "cgroups: use task_lock() for access tsk->cgroups safe in cgroup_clone()"), thus resulted in lock inconsistency. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Acked-by: Paul Menage <menage@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-29alpha: fix the BUG() macroIvan Kokshaysky
The commit "alpha: teach the compiler that BUG doesn't return" (ed6b9b97f42c091630335bfb71a2931e6f86388b) moved the asm code into inline function which takes __FILE__ and __LINE__ as arguments. This violates asm constrains there ("i" - an immediate operand with constant value), so that compile may result in warning or error, depending on compiler version. Just adding an infinite loop to the BUG() is sufficient. Signed-off-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>
2009-01-29alpha: compile fixesIvan Kokshaysky
- jensen build: fix conflicting declarations for pci_alloc_consistent() and undefined virt_to_phys(); - SMP: arch/alpha/kernel/smp.c:124: warning: passing argument 2 of '__cpu_test_and_set' discards qualifiers from pointer target type Interestingly, this only happens with gcc-4.2; gcc <= 4.1 and gcc-4.3 are OK. Fixed with extra assignment. Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Richard Henderson <rth@twiddle.net> Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-29alpha: use syscall wrappersIvan Kokshaysky
Convert OSF syscalls and add alpha specific SYSCALL_ALIAS() macro. Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Richard Henderson <rth@twiddle.net> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-29memcg: NULL pointer dereference at rmdir on some NUMA systemsKAMEZAWA Hiroyuki
N_POSSIBLE doesn't means there is memory...and force_empty can visit invalid node which have no pgdat. To visit all valid nodes, N_HIGH_MEMORY should be used. Reported-by: Li Zefan <lizf@cn.fujitsu.com> Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Tested-by: Li Zefan <lizf@cn.fujitsu.com> Cc: Balbir Singh <balbir@linux.vnet.ibm.com> Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-29fbdev: incorrect URL given in drivers/video/KconfigAlex Buell
Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-29hp-wmi: fix regressions caused by missing if statementFrans Pop
Error was introduced in commit fe8e4e039dc3 ("hp-wmi: handle rfkill_register() failure"). Signed-off-by: Frans Pop <elendil@planet.nl> Acked-by: Larry Finger <Larry.Finger@lwfinger.net> Acked-by: Matthew Garrett <mjg@redhat.com> Cc: Matthew Garrett <mjg59@srcf.ucam.org> Cc: Len Brown <lenb@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-29memcg: update document to mention that swapoff should be testedKAMEZAWA Hiroyuki
Considering the recently found problem "memcg: fix refcnt handling at swapoff", it's better to mention swapoff behavior in the memcg_test document. Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Acked-by: Balbir Singh <balbir@linux.vnet.ibm.com> Cc: Li Zefan <lizf@cn.fujitsu.com> Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-29memcg: fix refcnt handling at swapoffKAMEZAWA Hiroyuki
Now, at swapoff, even while try_charge() fails, commit is executed. This is a bug which turns the refcnt of cgroup_subsys_state negative. Reported-by: Li Zefan <lizf@cn.fujitsu.com> Tested-by: Li Zefan <lizf@cn.fujitsu.com> Tested-by: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Reviewed-by: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> Cc: Balbir Singh <balbir@in.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-29gpiolib: fix request related issueMagnus Damm
Fix request-already-requested handling in gpio_request(). Signed-off-by: Magnus Damm <damm@igel.co.jp> Acked-by: David Brownell <dbrownell@users.sourceforge.net> 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>
2009-01-29memcg: get/put parents at create/freeDaisuke Nishimura
The lifetime of struct cgroup and struct mem_cgroup is different and mem_cgroup has its own reference count for handling references from swap_cgroup. This causes strange problem that the parent mem_cgroup dies while child mem_cgroup alive, and this problem causes a bug in case of use_hierarchy==1 because res_counter_uncharge climbs up the tree. This patch is for avoiding it by getting the parent at create, and putting it at freeing. Signed-off-by: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> Reviewed-by; KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Balbir Singh <balbir@linux.vnet.ibm.com> Cc: Pavel Emelyanov <xemul@openvz.org> Cc: Li Zefan <lizf@cn.fujitsu.com> Cc: Paul Menage <menage@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-29cgroups: use hierarchy mutex in creation failure pathKAMEZAWA Hiroyuki
Now, cgrp->sibling is handled under hierarchy mutex. error route should do so, too. Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Li Zefan <lizf@cn.fujitsu.com> Acked-by Paul Menage <menage@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-29mm: OOM documentation updateEvgeniy Polyakov
Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net> Acked-by: David Rientjes <rientjes@google.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-29kprobes: fix module compilation error with CONFIG_KPROBES=nMasami Hiramatsu
Define kprobes related data structures even if CONFIG_KPROBES is not set. This fixes compilation errors which occur if CONFIG_KPROBES is not set, in kprobe using modules. [akpm@linux-foundation.org: fix build for non-kprobes-supporting architectures] Reviewed-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-29sgi-xpc: fix up stale DBUG_ON statementsRobin Holt
Clean up the stale DBUG_ON checks and add a couple new ones. Signed-off-by: Robin Holt <holt@sgi.com> Signed-off-by: Dean Nelson <dcn@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-29sgi-xpc: Remove NULL pointer dereference.Robin Holt
If the bte copy fails, the attempt to retrieve payloads merely returns a null pointer deref and not NULL as was expected. Signed-off-by: Robin Holt <holt@sgi.com> 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>
2009-01-29sgi-xpc: ensure flags are updated before bte_copyRobin Holt
The clearing of the msg->flags needs a barrier between it and the notify of the channel threads that the messages are cleaned and ready for use. Signed-off-by: Robin Holt <holt@sgi.com> 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>
2009-01-29Fix OOPS in mmap_region() when merging adjacent VM_LOCKED file segmentsLinus Torvalds
As of commit ba470de43188cdbff795b5da43a1474523c6c2fb ("map: handle mlocked pages during map, remap, unmap") we now use the 'vma' variable at the end of mmap_region() to handle the page-in of newly mapped mlocked pages. However, if we merged adjacent vma's together, the vma we're using may be stale. We historically consciously avoided using it after the merge operation, but that got overlooked when redoing the locked page handling. This commit simplifies mmap_region() by doing any vma merges early, avoiding the issue entirely, and 'vma' will always be valid. As pointed out by Hugh Dickins, this depends on any drivers that change the page offset of flags to have set one of the VM_SPECIAL bits (so that they cannot trigger the early merge logic), but that's true in general. Reported-and-tested-by: Maksim Yevmenkin <maksim.yevmenkin@gmail.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com> Cc: Nick Piggin <npiggin@suse.de> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Hugh Dickins <hugh@veritas.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-30lguest: Fix a memory leak with the lg object during launcher closeMark Wallis
Fix a memory leak identified by Rusty Russell during LCA09 by kfree'ing the lg object instead of just clearing it when the launcher closes. Signed-off-by: Mark Wallis <mwallis@serialmonkey.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2009-01-30lguest: disable the FORTIFY for lguest.Tim 'mithro' Ansell
Makes all the warnings go away when compiling lguest on Ubuntu on Intrepid or greater. Signed-off-by: Timothy R Ansell <mithro@mithis.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2009-01-30lguest: typos fixAtsushi SAKAI
3 points lguest_asm.S => i386_head.S LHCALL_BREAK => LHREQ_BREAK perferred => preferred Signed-off-by: Atsushi SAKAI <sakaia@jp.fujitsu.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2009-01-29ieee1394: sbp2: add workarounds for 2nd and 3rd generation iPodsStefan Richter
as per https://bugs.launchpad.net/bugs/294391. These got one sample of each iPod generation going. However there still occurred I/O stalls with the 3rd generation iPod which remain undiagnosed at the time of this writing. Acked-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2009-01-29firewire: sbp2: add workarounds for 2nd and 3rd generation iPodsStefan Richter
According to https://bugs.launchpad.net/bugs/294391 - 3rd generation iPods need the "fix capacity" workaround after all (apparently they crash after the last sector was accessed), - 2nd generation iPods need the "128 kB maximum request size" workaround. Alas both iPod generations feature the same model ID in the config ROM, hence we can only define a shared quirks list entry for them. Luckily the fix capacity workaround did not show a negative effect in Jarod's tests with 2nd gen. iPod. A side note: Apple computers in target mode (or at least an x86 Mac mini) don't have firmware_version and model_id, hence none of the iPod quirks list entries is active for them. Tested-by: Jarod Wilson <jarod@redhat.com> Acked-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2009-01-29Merge branch 'fix/hda' into for-linusTakashi Iwai
2009-01-29Merge branch 'fix/asoc' into for-linusTakashi Iwai
2009-01-29ASoC: OMAP: Initialize XCCR and RCCR registers in McBSP DAI driverMisael Lopez Cruz
This patch explicitly initializes McBSP Transmit Configuration Control Register (XCCR) and Receive Configuration Control Register (RCCR) to their reset values. Reset values are 26 ns of DX delay and Transmit DMA disabled for XCCR register; receive full cycle mode enabled and Receive DMA disabled for RCCR register. This patch requires a counterpart in OMAP McBSP driver before to apply it. The required changes in McBSP were sent and approved in linux-omap mailing list and patch is going upstream (commit 3127f8f8595a064b3f1a1837fea2177902589ac3 from linux-omap-2.6 tree). Signed-off-by: Misael Lopez Cruz <x0052729@ti.com> [ jarkko.nikula@nokia.com: Commit id for counterpart patch corrected ] Signed-off-by: Jarkko Nikula <jarkko.nikula@nokia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-01-29ASoC: Fix null string usage with WM8753 DAIsMark Brown
The WM8753 driver multiplexes the DAI structures it exposes to the outside world, leaving them uninitialised until the codec probes. Since the DAI name is used during the registration and setup process provide a dummy name. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-01-29HID: document difference between hid_blacklist and hid_ignore_listJiri Kosina
Many people get it wrong and add device IDs into hid_blacklist instead of hid_ignore_list. Let's put a little comment in place. Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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