aboutsummaryrefslogtreecommitdiff
path: root/include
AgeCommit message (Collapse)Author
2010-04-07include/linux/kfifo.h: fix INIT_KFIFO()David Härdeman
DECLARE_KFIFO creates a union with a struct kfifo and a buffer array with size [size + sizeof(struct kfifo)]. INIT_KFIFO then sets the buffer pointer in struct kfifo to point to the beginning of the buffer array which means that the first call to kfifo_in will overwrite members of the struct kfifo. Signed-off-by: David Härdeman <david@hardeman.nu> Acked-by: Stefani Seibold <stefani@seibold.net> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-04-07bitops: remove temporary for_each_bit()Andrew Morton
Migration has been completed so remove this now. There's one straggler in linux-next's drivers/mtd/sm_ftl.c. A patch has been sent. Cc: Akinobu Mita <akinobu.mita@gmail.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-04-06Merge 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: unlock HPA if device shrunk libata: disable NCQ on Crucial C300 SSD libata: don't whine on spurious IRQ
2010-04-06libata: unlock HPA if device shrunkTejun Heo
Some BIOSes don't configure HPA during boot but do so while resuming. This causes harddrives to shrink during resume making libata detach and reattach them. This can be worked around by unlocking HPA if old size equals native size. Add ATA_DFLAG_UNLOCK_HPA so that HPA unlocking can be controlled per-device and update ata_dev_revalidate() such that it sets ATA_DFLAG_UNLOCK_HPA and fails with -EIO when the above condition is detected. This patch fixes the following bug. https://bugzilla.kernel.org/show_bug.cgi?id=15396 Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: Oleksandr Yermolenko <yaa.bta@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2010-04-05Fix up possibly racy module refcountingNick Piggin
Module refcounting is implemented with a per-cpu counter for speed. However there is a race when tallying the counter where a reference may be taken by one CPU and released by another. Reference count summation may then see the decrement without having seen the previous increment, leading to lower than expected count. A module which never has its actual reference drop below 1 may return a reference count of 0 due to this race. Module removal generally runs under stop_machine, which prevents this race causing bugs due to removal of in-use modules. However there are other real bugs in module.c code and driver code (module_refcount is exported) where the callers do not run under stop_machine. Fix this by maintaining running per-cpu counters for the number of module refcount increments and the number of refcount decrements. The increments are tallied after the decrements, so any decrement seen will always have its corresponding increment counted. The final refcount is the difference of the total increments and decrements, preventing a low-refcount from being returned. Signed-off-by: Nick Piggin <npiggin@suse.de> Acked-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-04-05Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs: 9p: saving negative to unsigned char 9p: return on mutex_lock_interruptible() 9p: Creating files with names too long should fail with ENAMETOOLONG. 9p: Make sure we are able to clunk the cached fid on umount 9p: drop nlink remove fs/9p: Clunk the fid resulting from partial walk of the name 9p: documentation update 9p: Fix setting of protocol flags in v9fs_session_info structure.
2010-04-05Merge branch 'slabh' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/miscLinus Torvalds
* 'slabh' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc: eeepc-wmi: include slab.h staging/otus: include slab.h from usbdrv.h percpu: don't implicitly include slab.h from percpu.h kmemcheck: Fix build errors due to missing slab.h include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h iwlwifi: don't include iwl-dev.h from iwl-devtrace.h x86: don't include slab.h from arch/x86/include/asm/pgtable_32.h Fix up trivial conflicts in include/linux/percpu.h due to is_kernel_percpu_address() having been introduced since the slab.h cleanup with the percpu_up.c splitup.
2010-04-05Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: module: add stub for is_module_percpu_address percpu, module: implement and use is_kernel/module_percpu_address() module: encapsulate percpu handling better and record percpu_size
2010-04-059p: Make sure we are able to clunk the cached fid on umountAneesh Kumar K.V
dcache prune happen on umount. So we cannot mark the client satus disconnect. That will prevent a 9p call to the server Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
2010-04-05Merge branch 'master' into export-slabhTejun Heo
2010-04-04Merge branch 'perf-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: perf: Always build the powerpc perf_arch_fetch_caller_regs version perf: Always build the stub perf_arch_fetch_caller_regs version perf, probe-finder: Build fix on Debian perf/scripts: Tuple was set from long in both branches in python_process_event() perf: Fix 'perf sched record' deadlock perf, x86: Fix callgraphs of 32-bit processes on 64-bit kernels perf, x86: Fix AMD hotplug & constraint initialization x86: Move notify_cpu_starting() callback to a later stage x86,kgdb: Always initialize the hw breakpoint attribute perf: Use hot regs with software sched switch/migrate events perf: Correctly align perf event tracing buffer
2010-04-02Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* master.kernel.org:/home/rmk/linux-2.6-arm: ARM: 5965/1: Fix soft lockup in at91 udc driver ARM: 6006/1: ARM: Use the correct NOP size in memmove for Thumb-2 kernel builds ARM: 6005/1: arm: kprobes: fix register corruption with jprobes ARM: 6003/1: removing compilation warning from pl061.h ARM: 6001/1: removing compilation warning comming from clkdev.h ARM: 6000/1: removing compilation warning comming from <asm/irq.h> ARM: 5999/1: Including device.h and resource.h header files in linux/amba/bus.h ARM: 5997/1: ARM: Correct the VFPv3 detection ARM: 5996/1: ARM: Change the mandatory barriers implementation (4/4) ARM: 5995/1: ARM: Add L2x0 outer_sync() support (3/4) ARM: 5994/1: ARM: Add outer_cache_fns.sync function pointer (2/4) ARM: 5993/1: ARM: Move the outer_cache definitions into a separate file (1/4)
2010-04-02Merge branch 'pm-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6 * 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6: Freezer: Fix buggy resume test for tasks frozen with cgroup freezer Freezer: Only show the state of tasks refusing to freeze
2010-04-02Merge branch 'perf/urgent' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing into perf/urgent
2010-04-01Merge branch 'drm-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 * 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (76 commits) drm/radeon/kms: enable ACPI powermanagement mode on radeon gpus. drm/radeon/kms: rs400/480 should set common registers. drm/radeon/kms: add sanity check to wptr. drm/radeon/kms/evergreen: get DP working drm/radeon/kms: add hw_i2c module option drm/radeon/kms: use new pre/post_xfer i2c bit algo hooks drm/radeon/kms: disable MSI on IGP chips drm/radeon/kms: display watermark updates (v2) drm/radeon/kms/dp: disable training pattern on the sink at the end of link training drm/radeon/kms: minor fixes for eDP with LCD* device tags (v2) drm/radeon/kms/dp: remove extraneous training complete call drm/radeon/kms/atom: minor fixes to transmitter setup drm/radeon/kms: Only restrict BO to visible VRAM size when pinning to VRAM. drm: fix build error when SYSRQ is disabled drm/radeon/kms: fix macbookpro connector quirk drm/radeon/r6xx/r7xx: further safe reg clean up drm/radeon: bump the UMS driver version for r6xx/r7xx const buffer support drm/radeon/kms: bump the version for r6xx/r7xx const buffer support drm/radeon/r6xx/r7xx: CS parser fixes drm/radeon/kms: fix some typos in r6xx/r7xx hpd setup ... Fix up MSI-related conflicts in drivers/gpu/drm/radeon/radeon_irq_kms.c
2010-04-01perf: Use hot regs with software sched switch/migrate eventsFrederic Weisbecker
Scheduler's task migration events don't work because they always pass NULL regs perf_sw_event(). The event hence gets filtered in perf_swevent_add(). Scheduler's context switches events use task_pt_regs() to get the context when the event occured which is a wrong thing to do as this won't give us the place in the kernel where we went to sleep but the place where we left userspace. The result is even more wrong if we switch from a kernel thread. Use the hot regs snapshot for both events as they belong to the non-interrupt/exception based events family. Unlike page faults or so that provide the regs matching the exact origin of the event, we need to save the current context. This makes the task migration event working and fix the context switch callchains and origin ip. Example: perf record -a -e cs Before: 10.91% ksoftirqd/0 0 [k] 0000000000000000 | --- (nil) perf_callchain perf_prepare_sample __perf_event_overflow perf_swevent_overflow perf_swevent_add perf_swevent_ctx_event do_perf_sw_event __perf_sw_event perf_event_task_sched_out schedule run_ksoftirqd kthread kernel_thread_helper After: 23.77% hald-addon-stor [kernel.kallsyms] [k] schedule | --- schedule | |--60.00%-- schedule_timeout | wait_for_common | wait_for_completion | blk_execute_rq | scsi_execute | scsi_execute_req | sr_test_unit_ready | | | |--66.67%-- sr_media_change | | media_changed | | cdrom_media_changed | | sr_block_media_changed | | check_disk_change | | cdrom_open v2: Always build perf_arch_fetch_caller_regs() now that software events need that too. They don't need it from modules, unlike trace events, so we keep the EXPORT_SYMBOL in trace_event_perf.c Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: David Miller <davem@davemloft.net>
2010-03-31Merge branch 'v2.6.34-rc2' into drm-linusDave Airlie
2010-03-31module: add stub for is_module_percpu_addressRandy Dunlap
Fix build for CONFIG_MODULES not enabled by providing a stub for is_module_percpu_address(). kernel/lockdep.c:605: error: implicit declaration of function 'is_module_percpu_address' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2010-03-30percpu: don't implicitly include slab.h from percpu.hTejun Heo
percpu.h has always been including slab.h to get k[mz]alloc/free() for UP inline implementation. percpu.h being used by very low level headers including module.h and sched.h, this meant that a lot files unintentionally got slab.h inclusion. Lee Schermerhorn was trying to make topology.h use percpu.h and got bitten by this implicit inclusion. The right thing to do is break this ultimately unnecessary dependency. The previous patch added explicit inclusion of either gfp.h or slab.h to the source files using them. This patch updates percpu.h such that slab.h is no longer included from percpu.h. Signed-off-by: Tejun Heo <tj@kernel.org> Reviewed-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-30include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo
implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-29Merge 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: (33 commits) r8169: offical fix for CVE-2009-4537 (overlength frame DMAs) ipv6: Don't drop cache route entry unless timer actually expired. tulip: Add missing parens. r8169: fix broken register writes pcnet_cs: add new id bonding: fix broken multicast with round-robin mode drivers/net: Fix continuation lines e1000: do not modify tx_queue_len on link speed change net: ipmr/ip6mr: prevent out-of-bounds vif_table access ixgbe: Do not run all Diagnostic offline tests when VFs are active igb: use correct bits to identify if managability is enabled benet: Fix compile warnnings in drivers/net/benet/be_ethtool.c net: Add MSG_WAITFORONE flag to recvmmsg e1000e: do not modify tx_queue_len on link speed change igbvf: do not modify tx_queue_len on link speed change ipv4: Restart rt_intern_hash after emergency rebuild (v2) ipv4: Cleanup struct net dereference in rt_intern_hash net: fix netlink address dumping in IPv4/IPv6 tulip: Fix null dereference in uli526x_rx_packet() gianfar: fix undo of reserve() ...
2010-03-29ext3: fix broken handling of EXT3_STATE_NEWLinus Torvalds
In commit 9df93939b735 ("ext3: Use bitops to read/modify EXT3_I(inode)->i_state") ext3 changed its internal 'i_state' variable to use bitops for its state handling. However, unline the same ext4 change, it didn't actually change the name of the field when it changed the semantics of it. As a result, an old use of 'i_state' remained in fs/ext3/ialloc.c that initialized the field to EXT3_STATE_NEW. And that does not work _at_all_ when we're now working with individually named bits rather than values that get masked. So the code tried to mark the state to be new, but in actual fact set the field to EXT3_STATE_JDATA. Which makes no sense at all, and screws up all the code that checks whether the inode was newly allocated. In particular, it made the xattr code unhappy, and caused various random behavior, like apparently https://bugzilla.redhat.com/show_bug.cgi?id=577911 So fix the initialization, and rename the field to match ext4 so that we don't have this happen again. Cc: James Morris <jmorris@namei.org> Cc: Stephen Smalley <sds@tycho.nsa.gov> Cc: Daniel J Walsh <dwalsh@redhat.com> Cc: Eric Paris <eparis@redhat.com> Cc: Jan Kara <jack@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-03-29ARM: 6003/1: removing compilation warning from pl061.hviresh kumar
pl061.h is using u8 type. including <linux/types.h> in pl061.h to avoid warning. Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Acked-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-03-29ARM: 5999/1: Including device.h and resource.h header files in linux/amba/bus.hviresh kumar
linux/amba/bus.h have dependencies on linux/device.h and linux/resource.h, but it doesn't include them. We get compilation errors in our files which include bus.h but doesn't include device.h and resource.h. This patch includes device.h and resource.h in linux/amba/bus.h file. Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Acked-by: Linux Walleij <linux.ml.walleij@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-03-29SLOW_WORK: CONFIG_SLOW_WORK_PROC should be CONFIG_SLOW_WORK_DEBUGDavid Howells
CONFIG_SLOW_WORK_PROC was changed to CONFIG_SLOW_WORK_DEBUG, but not in all instances. Change the remaining instances. This makes the debugfs file display the time mark and the owner's description again. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-03-29percpu, module: implement and use is_kernel/module_percpu_address()Tejun Heo
lockdep has custom code to check whether a pointer belongs to static percpu area which is somewhat broken. Implement proper is_kernel/module_percpu_address() and replace the custom code. On UP, percpu variables are regular static variables and can't be distinguished from them. Always return %false on UP. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Ingo Molnar <mingo@redhat.com>
2010-03-29module: encapsulate percpu handling better and record percpu_sizeTejun Heo
Better encapsulate module static percpu area handling so that code outsidef of CONFIG_SMP ifdef doesn't deal with mod->percpu directly and add mod->percpu_size and record percpu_size in it. Both percpu fields are compiled out on UP. While at it, mark mod->percpu w/ __percpu. This is to prepare for is_module_percpu_address(). Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Rusty Russell <rusty@rustcorp.com.au>
2010-03-27net: Add MSG_WAITFORONE flag to recvmmsgBrandon L Black
Add new flag MSG_WAITFORONE for the recvmmsg() syscall. When this flag is specified for a blocking socket, recvmmsg() will only block until at least 1 packet is available. The default behavior is to block until all vlen packets are available. This flag has no effect on non-blocking sockets or when used in combination with MSG_DONTWAIT. Signed-off-by: Brandon L Black <blblack@gmail.com> Acked-by: Ulrich Drepper <drepper@redhat.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-26Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: x86/PCI: truncate _CRS windows with _LEN > _MAX - _MIN + 1 x86/PCI: for host bridge address space collisions, show conflicting resource frv/PCI: remove redundant warnings x86/PCI: remove redundant warnings PCI: don't say we claimed a resource if we failed PCI quirk: Disable MSI on VIA K8T890 systems PCI quirk: RS780/RS880: work around missing MSI initialization PCI quirk: only apply CX700 PCI bus parking quirk if external VT6212L is present PCI: complain about devices that seem to be broken PCI: print resources consistently with %pR PCI: make disabled window printk style match the enabled ones PCI: break out primary/secondary/subordinate for readability PCI: for address space collisions, show conflicting resource resources: add interfaces that return conflict information PCI: cleanup error return for pcix get and set mmrbc functions PCI: fix access of PCI_X_CMD by pcix get and set mmrbc functions PCI: kill off pci_register_set_vga_state() symbol export. PCI: fix return value from pcix_get_max_mmrbc()
2010-03-26Freezer: Fix buggy resume test for tasks frozen with cgroup freezerMatt Helsley
When the cgroup freezer is used to freeze tasks we do not want to thaw those tasks during resume. Currently we test the cgroup freezer state of the resuming tasks to see if the cgroup is FROZEN. If so then we don't thaw the task. However, the FREEZING state also indicates that the task should remain frozen. This also avoids a problem pointed out by Oren Ladaan: the freezer state transition from FREEZING to FROZEN is updated lazily when userspace reads or writes the freezer.state file in the cgroup filesystem. This means that resume will thaw tasks in cgroups which should be in the FROZEN state if there is no read/write of the freezer.state file to trigger this transition before suspend. NOTE: Another "simple" solution would be to always update the cgroup freezer state during resume. However it's a bad choice for several reasons: Updating the cgroup freezer state is somewhat expensive because it requires walking all the tasks in the cgroup and checking if they are each frozen. Worse, this could easily make resume run in N^2 time where N is the number of tasks in the cgroup. Finally, updating the freezer state from this code path requires trickier locking because of the way locks must be ordered. Instead of updating the freezer state we rely on the fact that lazy updates only manage the transition from FREEZING to FROZEN. We know that a cgroup with the FREEZING state may actually be FROZEN so test for that state too. This makes sense in the resume path even for partially-frozen cgroups -- those that really are FREEZING but not FROZEN. Reported-by: Oren Ladaan <orenl@cs.columbia.edu> Signed-off-by: Matt Helsley <matthltc@us.ibm.com> Cc: stable@kernel.org Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2010-03-26Merge branch 'urgent' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6 * 'urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6: pcmcia: use dev_pm_ops for class pcmcia_socket_class power: support _noirq actions on device types and classes pcmcia: allow for four multifunction subdevices (again) pcmcia: do not use ioports < 0x100 on x86 pd6729: Coding Style fixes
2010-03-26Merge 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: time: Fix accumulation bug triggered by long delay. posix-cpu-timers: Reset expire cache when no timer is running timer stats: Fix del_timer_sync() and try_to_del_timer_sync() clockevents: Sanitize min_delta_ns adjustment and prevent overflows
2010-03-26Merge branch 'core-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: Remove excessive early_res debug output softlockup: Stop spurious softlockup messages due to overflow rcu: Fix local_irq_disable() CONFIG_PROVE_RCU=y false positives rcu: Fix tracepoints & lockdep false positive rcu: Make rcu_read_lock_bh_held() allow for disabled BH
2010-03-25Merge 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: (25 commits) TIPC: Removed inactive maintainer isdn: Cleanup Sections in PCMCIA driver elsa isdn: Cleanup Sections in PCMCIA driver avma1 isdn: Cleanup Sections in PCMCIA driver teles isdn: Cleanup Sections in PCMCIA driver sedlbauer via-velocity: Fix FLOW_CNTL_TX_RX handling in set_mii_flow_control() netfilter: xt_hashlimit: IPV6 bugfix netfilter: ip6table_raw: fix table priority netfilter: xt_hashlimit: dl_seq_stop() fix af_key: return error if pfkey_xfrm_policy2msg_prep() fails skbuff: remove unused dma_head & dma_maps fields vlan: updates vlan real_num_tx_queues vlan: adds vlan_dev_select_queue igb: only use vlan_gro_receive if vlans are registered igb: do not modify tx_queue_len on link speed change igb: count Rx FIFO errors correctly bnx2: Use proper handler during netpoll. bnx2: Fix netpoll crash. ksz884x: fix return value of netdev_set_eeprom cgroups: net_cls as module ...
2010-03-25Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-2.6
2010-03-25netfilter: ip6table_raw: fix table priorityJozsef Kadlecsik
The order of the IPv6 raw table is currently reversed, that makes impossible to use the NOTRACK target in IPv6: for example if someone enters ip6tables -t raw -A PREROUTING -p tcp --dport 80 -j NOTRACK and if we receive fragmented packets then the first fragment will be untracked and thus skip nf_ct_frag6_gather (and conntrack), while all subsequent fragments enter nf_ct_frag6_gather and reassembly will never successfully be finished. Singed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> Signed-off-by: Patrick McHardy <kaber@trash.net>
2010-03-24Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6Linus Torvalds
* 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6: NFS: don't try to decode GETATTR if DELEGRETURN returned error sunrpc: handle allocation errors from __rpc_lookup_create() SUNRPC: Fix the return value of rpc_run_bc_task() SUNRPC: Fix a use after free bug with the NFSv4.1 backchannel SUNRPC: Fix a potential memory leak in auth_gss NFS: Prevent another deadlock in nfs_release_page()
2010-03-24Merge branch 'i2c-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging * 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging: i2c-scmi: Provide module aliases for automatic loading i2c-scmi: Support IBM SMBus CMI devices acpi: Support IBM SMBus CMI devices
2010-03-24Document Linux's circular buffering capabilitiesDavid Howells
Document the circular buffering capabilities available in Linux. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Randy Dunlap <rdunlap@xenotime.net> Reviewed-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-03-24mmc: fix incorrect interpretation of card type bitsAdrian Hunter
In the extended CSD register the CARD_TYPE is an 8-bit value of which the upper 6 bits were reserved in JEDEC specifications prior to version 4.4. In version 4.4 two of the reserved bits were designated for identifying support for the newly added High-Speed Dual Data Rate. Unfortunately the mmc_read_ext_csd() function required that the reserved bits be zero instead of ignoring them as it should. This patch makes mmc_read_ext_csd() ignore the CARD_TYPE bits that are reserved or not yet supported. It also stops the function jumping to the end as though an error occurred, when it is only warns that the CARD_TYPE bits (that it does interpret) are invalid. Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-03-24reiserfs: fix oops while creating privroot with selinux enabledJeff Mahoney
Commit 57fe60df ("reiserfs: add atomic addition of selinux attributes during inode creation") contains a bug that will cause it to oops when mounting a file system that didn't previously contain extended attributes on a system using security.* xattrs. The issue is that while creating the privroot during mount reiserfs_security_init calls reiserfs_xattr_jcreate_nblocks which dereferences the xattr root. The xattr root doesn't exist, so we get an oops. Addresses http://bugzilla.kernel.org/show_bug.cgi?id=15309 Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-03-24kfifo: fix KFIFO_INIT in include/linux/kfifo.hDavid Härdeman
include/linux/kfifo.h first defines and then undefines __kfifo_initializer which is used by INIT_KFIFO (which is also a macro, so building a module which uses INIT_KFIFO will fail). Signed-off-by: David Härdeman <david@hardeman.nu> Acked-by: Stefani Seibold <stefani@seibold.net> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-03-24skbuff: remove unused dma_head & dma_maps fieldsAlexander Duyck
The dma map fields in the skb_shared_info structure no longer has any users and can be dropped since it is making the skb_shared_info unecessarily larger. Running slabtop show that we were using 4K slabs for the skb->head on x86_64 w/ an allocation size of 1522. It turns out that the dma_head and dma_maps array made skb_shared large enough that we had crossed over the 2k boundary with standard frames and as such we were using 4k blocks of memory for all skbs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-24acpi: Support IBM SMBus CMI devicesDarrick J. Wong
On some old IBM workstations and desktop computers, the BIOS presents in the DSDT an SMBus object that is missing the HID identifier that the i2c-scmi driver looks for. Modify the ACPI device scan code to insert the missing HID if it finds an IBM system with such an object. Affected machines: IntelliStation Z20/Z30. Note that the i2c-i801 driver no longer works on these machines because of ACPI resource conflicts. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2010-03-24pcmcia: use dev_pm_ops for class pcmcia_socket_classDominik Brodowski
Instead of requiring PCMCIA socket drivers to call various functions during their (bus) resume and suspend functions, register an own dev_pm_ops for this class. This fixes several suspend/resume bugs seen on db1xxx-ss, and probably on some other socket drivers, too. With regard to the asymmetry with only _noirq suspend, but split up resume, please see bug 14334 and commit 9905d1b411946fb3 . Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2010-03-23resources: add interfaces that return conflict informationBjorn Helgaas
request_resource() and insert_resource() only return success or failure, which no information about what existing resource conflicted with the proposed new reservation. This patch adds request_resource_conflict() and insert_resource_conflict(), which return the conflicting resource. Callers may use this for better error messages or to adjust the new resource and retry the request. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-03-22Fix up prototype for sys_ipc breakageLinus Torvalds
Commit 45575f5a426c ("ppc64 sys_ipc breakage in 2.6.34-rc2") fixed the definition of the sys_ipc() helper, but didn't fix the prototype in <linux/syscalls.h> Reported-and-tested-by: Andreas Schwab <schwab@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-03-22Merge 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: (38 commits) ip_gre: include route header_len in max_headroom calculation if_tunnel.h: add missing ams/byteorder.h include ipv4: Don't drop redirected route cache entry unless PTMU actually expired net: suppress lockdep-RCU false positive in FIB trie. Bluetooth: Fix kernel crash on L2CAP stress tests Bluetooth: Convert debug files to actually use debugfs instead of sysfs Bluetooth: Fix potential bad memory access with sysfs files netfilter: ctnetlink: fix reliable event delivery if message building fails netlink: fix NETLINK_RECV_NO_ENOBUFS in netlink_set_err() NET_DMA: free skbs periodically netlink: fix unaligned access in nla_get_be64() tcp: Fix tcp_mark_head_lost() with packets == 0 net: ipmr/ip6mr: fix potential out-of-bounds vif_table access KS8695: update ksp->next_rx_desc_read at the end of rx loop igb: Add support for 82576 ET2 Quad Port Server Adapter ixgbevf: Message formatting cleanups ixgbevf: Shorten up delay timer for watchdog task ixgbevf: Fix VF Stats accounting after reset ixgbe: Set IXGBE_RSC_CB(skb)->DMA field to zero after unmapping the address ixgbe: fix for real_num_tx_queues update issue ...
2010-03-22SUNRPC: Fix a use after free bug with the NFSv4.1 backchannelTrond Myklebust
The ->release_request() callback was designed to allow the transport layer to do housekeeping after the RPC call is done. It cannot be used to free the request itself, and doing so leads to a use-after-free bug in xprt_release(). Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-03-21if_tunnel.h: add missing ams/byteorder.h includePaulius Zaleckas
When compiling userspace application which includes if_tunnel.h and uses GRE_* defines you will get undefined reference to __cpu_to_be16. Fix this by adding missing #include <asm/byteorder.h> Cc: stable@kernel.org Signed-off-by: Paulius Zaleckas <paulius.zaleckas@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>