- 18 4月, 2011 8 次提交
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由 Benjamin Herrenschmidt 提交于
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git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging由 Linus Torvalds 提交于
* 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging: i2c-algo-bit: Call pre/post_xfer for bit_test i2c: Improve deprecation warnings
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由 Linus Torvalds 提交于
Merge branch 's5p-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung * 's5p-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: ARM: SAMSUNG: Fix warning 's3c_pm_show_resume_irqs' defined but not used ARM: SAMSUNG: Fix build failure in PM CRC check code ARM: S5P: Remove unused s3c_pm_check_resume_pin
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由 Richard Henderson 提交于
Signed-off-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Richard Henderson 提交于
Following commit 091738a2 ("genirq: Remove real old transition functions") we removed an automatic conversion of no_irq_chip to dummy_irq_chip. This change needs to be propagated back into the alpha backend. Signed-off-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Richard Henderson 提交于
This is a new warning in gcc 4.6. Several of these variables are used within #if 0 code, which probably ought to be removed. Most of the changes are legitimate cleanups. Signed-off-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Richard Henderson 提交于
There are outstanding gcc 4.6 warnings that need to be cleaned up in the subdirectory. No sense forcing the issue immediately. Signed-off-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Milton Miller 提交于
While checking unregister_filesystem for saftey vs extra calls for "ext4: register ext2 and ext3 alias after ext4" I realized that the synchronize_rcu() was called on the error path but not on the success path. Cc: stable (2.6.38) Signed-off-by: NMilton Miller <miltonm@bga.com> [ This probably won't really make a difference since commit d863b50a ("vfs: call rcu_barrier after ->kill_sb()"), but it's the right thing to do. - Linus ] Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 17 4月, 2011 5 次提交
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由 Alex Deucher 提交于
Apparently some distros set i2c-algo-bit.bit_test to 1 by default. In some cases this causes i2c_bit_add_bus to fail and prevents the i2c bus from being added. In the radeon case, we fail to add the ddc i2c buses which prevents the driver from being able to detect attached monitors. The i2c bus works fine even if bit_test fails. This is likely due to gpio switching that is required and handled in the pre/post_xfer hooks, so call the pre/post_xfer hooks in the bit test as well. Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=36221Signed-off-by: NAlex Deucher <alexdeucher@gmail.com> Signed-off-by: NJean Delvare <khali@linux-fr.org> Cc: stable@kernel.org [.38 down to .34]
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由 Jean Delvare 提交于
When warning on the use of deprecated i2c_driver methods attach_adapter and detach_adapter, mention the name of the driver which needs to be updated. Signed-off-by: NJean Delvare <khali@linux-fr.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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git://git.kernel.dk/linux-2.6-block由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.dk/linux-2.6-block: block: make unplug timer trace event correspond to the schedule() unplug block: let io_schedule() flush the plug inline
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6由 Linus Torvalds 提交于
* 'usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (43 commits) Revert "USB: isp1760-hcd: move imask clear after pending work is done" xHCI: Implement AMD PLL quirk xhci: Tell USB core both roothubs lost power. usbcore: Bug fix: system can't suspend with USB3.0 device connected to USB3.0 hub USB: Fix unplug of device with active streams USB: xhci - also free streams when resetting devices xhci: Fix NULL pointer deref in handle_port_status() USB: xhci - fix math in xhci_get_endpoint_interval() USB: xhci: simplify logic of skipping missed isoc TDs USB: xhci - remove excessive 'inline' markings USB: xhci: unsigned char never equals -1 USB: xhci - fix unsafe macro definitions USB: fix formatting of SuperSpeed endpoints in /proc/bus/usb/devices USB: isp1760-hcd: move imask clear after pending work is done USB: fsl_qe_udc: send ZLP when zero flag and length % maxpacket == 0 usb: qcserial add missing errorpath kfrees usb: qcserial avoid pointing to freed memory usb: Fix qcserial memory leak on rmmod USB: ftdi_sio: add ids for Hameg HO720 and HO730 USB: option: Added support for Samsung GT-B3730/GT-B3710 LTE USB modem. ...
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由 Linus Torvalds 提交于
Merge branches 'core-fixes-for-linus', 'perf-fixes-for-linus', 'sched-fixes-for-linus', 'timer-fixes-for-linus' and 'x86-fixes-for-linus' of 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: futex: Set FLAGS_HAS_TIMEOUT during futex_wait restart setup * 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: perf_event: Fix cgrp event scheduling bug in perf_enable_on_exec() perf: Fix a build error with some GCC versions * 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: sched: Fix erroneous all_pinned logic sched: Fix sched-domain avg_load calculation * 'timer-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: RTC: rtc-mrst: follow on to the change of rtc_device_register() RTC: add missing "return 0" in new alarm func for rtc-bfin.c RTC: Fix s3c compile error due to missing s3c_rtc_setpie RTC: Fix early irqs caused by calling rtc_set_alarm too early * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, amd: Disable GartTlbWlkErr when BIOS forgets it x86, NUMA: Fix fakenuma boot failure x86/mrst: Fix boot crash caused by incorrect pin to irq mapping x86/ce4100: Add reg property to bridges
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- 16 4月, 2011 14 次提交
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由 Jens Axboe 提交于
It's a pretty close match to what we had before - the timer triggering would mean that nobody unplugged the plug in due time, in the new scheme this matches very closely what the schedule() unplug now is. It's essentially the difference between an explicit unplug (IO unplug) or an implicit unplug (timer unplug, we scheduled with pending IO queued). Signed-off-by: NJens Axboe <jaxboe@fusionio.com>
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由 Jens Axboe 提交于
Linus correctly observes that the most important dispatch cases are now done from kblockd, this isn't ideal for latency reasons. The original reason for switching dispatches out-of-line was to avoid too deep a stack, so by _only_ letting the "accidental" flush directly in schedule() be guarded by offload to kblockd, we should be able to get the best of both worlds. So add a blk_schedule_flush_plug() that offloads to kblockd, and only use that from the schedule() path. Signed-off-by: NJens Axboe <jaxboe@fusionio.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs: net/9p: nwname should be an unsigned int 9p: Fix sparse error fs/9p: Fix error reported by coccicheck 9p: revert tsyncfs related changes fs/9p: Use write_inode for data sync on server fs/9p: Fix revalidate to return correct value
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git://android.git.kernel.org/kernel/tegra由 Linus Torvalds 提交于
* 'for-linus' of git://android.git.kernel.org/kernel/tegra: arm: tegra: fix error check in tegra2_clocks.c ARM: tegra: gpio: Fix unused variable warnings
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由 Linus Torvalds 提交于
* 'fixes' of master.kernel.org:/home/rmk/linux-2.6-arm: ARM: 6879/1: fix personality test wrt usage of domain handlers ARM: 6878/1: fix personality flag propagation across an exec ARM: 6877/1: the ADDR_NO_RANDOMIZE personality flag should be honored with mmap() ARM: 6876/1: Kconfig.debug: Remove unused CONFIG_DEBUG_ERRORS ARM: pxa: convert incorrect IRQ_TO_IRQ() to irq_to_gpio() ARM: mmp: align NR_BUILTIN_GPIO with gpio interrupt number ARM: pxa: align NR_BUILTIN_GPIO with GPIO interrupt number ARM: pxa: always clear LPM bits for PXA168 MFPR pcmcia: limit pxa2xx_trizeps4 subdriver to trizeps4 platform pcmcia: limit pxa2xx_balloon3 subdriver to balloon3 platform ARM: pxafb: Fix access to nonexistent member of pxafb_info ARM: 6872/1: arch:common:Makefile Remove unused config in the Makefile. ARM: 6868/1: Preserve the VFP state during fork ARM: 6867/1: Introduce THREAD_NOTIFY_COPY for copy_thread() hooks ARM: 6866/1: Do not restrict HIGHPTE to !OUTER_CACHE ARM: 6865/1: perf: ensure pass through zero is counted on overflow ARM: 6864/1: hw_breakpoint: clear DBGVCR out of reset ARM: Only allow PM_SLEEP with CPUs which support suspend ARM: Make consolidated PM sleep code depend on PM_SLEEP
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由 Joerg Roedel 提交于
This patch disables GartTlbWlk errors on AMD Fam10h CPUs if the BIOS forgets to do is (or is just too old). Letting these errors enabled can cause a sync-flood on the CPU causing a reboot. The AMD BKDG recommends disabling GART TLB Wlk Error completely. This patch is the fix for https://bugzilla.kernel.org/show_bug.cgi?id=33012 on my machine. Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com> Link: http://lkml.kernel.org/r/20110415131152.GJ18463@8bytes.orgTested-by: NAlexandre Demers <alexandre.f.demers@gmail.com> Cc: <stable@kernel.org> Signed-off-by: NH. Peter Anvin <hpa@linux.intel.com>
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由 Tim Chen 提交于
During RCU walk in path_lookupat and path_openat, the rcu lookup frequently failed if looking up an absolute path, because when root directory was looked up, seq number was not properly set in nameidata. We dropped out of RCU walk in nameidata_drop_rcu due to mismatch in directory entry's seq number. We reverted to slow path walk that need to take references. With the following patch, I saw a 50% increase in an exim mail server benchmark throughput on a 4-socket Nehalem-EX system. Signed-off-by: NTim Chen <tim.c.chen@linux.intel.com> Reviewed-by: NAndi Kleen <ak@linux.intel.com> Cc: stable@kernel.org (v2.6.38) Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Harsh Prateek Bora 提交于
Signed-off-by: NHarsh Prateek Bora <harsh@linux.vnet.ibm.com> Signed-off-by: NVenkateswararao Jujjuri <jvrao@linux.vnet.ibm.com> Signed-off-by: NEric VAn Hensbergen <ericvh@gmail.com>
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由 Aneesh Kumar K.V 提交于
Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: NVenkateswararao Jujjuri <jvrao@linux.vnet.ibm.com> Signed-off-by: NEric Van Hensbergen <ericvh@gmail.com>
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由 Aneesh Kumar K.V 提交于
Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: NVenkateswararao Jujjuri <jvrao@linux.vnet.ibm.com> Signed-off-by: NEric Van Hensbergen <ericvh@gmail.com>
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由 Aneesh Kumar K.V 提交于
Now that we use write_inode to flush server cache related to fid, we don't need tsyncfs either fort dotl or dotu protocols. For dotu this helps to do a more efficient server flush. Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: NVenkateswararao Jujjuri <jvrao@linux.vnet.ibm.com> Signed-off-by: NEric Van Hensbergen <ericvh@gmail.com>
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由 Aneesh Kumar K.V 提交于
Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: NVenkateswararao Jujjuri <jvrao@linux.vnet.ibm.com> Signed-off-by: NEric Van Hensbergen <ericvh@gmail.com>
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由 Aneesh Kumar K.V 提交于
revalidate should return > 0 on success. Also return 0 on ENOENT to force do_revalidate to return NULL dentry; Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: NVenkateswararao Jujjuri <jvrao@linux.vnet.ibm.com> Signed-off-by: NEric Van Hensbergen <ericvh@gmail.com>
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由 KOSAKI Motohiro 提交于
Currently, numa=fake boot parameter is broken. If it's used, kernel may panic due to devide by zero error depending on CPU configuration Call Trace: [<ffffffff8104ad4c>] find_busiest_group+0x38c/0xd30 [<ffffffff81086aff>] ? local_clock+0x6f/0x80 [<ffffffff81050533>] load_balance+0xa3/0x600 [<ffffffff81050f53>] idle_balance+0xf3/0x180 [<ffffffff81550092>] schedule+0x722/0x7d0 [<ffffffff81550538>] ? wait_for_common+0x128/0x190 [<ffffffff81550a65>] schedule_timeout+0x265/0x320 [<ffffffff81095815>] ? lock_release_holdtime+0x35/0x1a0 [<ffffffff81550538>] ? wait_for_common+0x128/0x190 [<ffffffff8109bb6c>] ? __lock_release+0x9c/0x1d0 [<ffffffff815534e0>] ? _raw_spin_unlock_irq+0x30/0x40 [<ffffffff815534e0>] ? _raw_spin_unlock_irq+0x30/0x40 [<ffffffff81550540>] wait_for_common+0x130/0x190 [<ffffffff81051920>] ? try_to_wake_up+0x510/0x510 [<ffffffff8155067d>] wait_for_completion+0x1d/0x20 [<ffffffff8107f36c>] kthread_create_on_node+0xac/0x150 [<ffffffff81077bb0>] ? process_scheduled_works+0x40/0x40 [<ffffffff8155045f>] ? wait_for_common+0x4f/0x190 [<ffffffff8107a283>] __alloc_workqueue_key+0x1a3/0x590 [<ffffffff81e0cce2>] cpuset_init_smp+0x6b/0x7b [<ffffffff81df3d07>] kernel_init+0xc3/0x182 [<ffffffff8155d5e4>] kernel_thread_helper+0x4/0x10 [<ffffffff81553cd4>] ? retint_restore_args+0x13/0x13 [<ffffffff81df3c44>] ? start_kernel+0x400/0x400 [<ffffffff8155d5e0>] ? gs_change+0x13/0x13 The divede by zero is caused by the following line, group->cpu_power==0: kernel/sched_fair.c::update_sg_lb_stats() /* Adjust by relative CPU power of the group */ sgs->avg_load = (sgs->group_load * SCHED_LOAD_SCALE) / group->cpu_power; This regression was caused by commit e23bba60 ("x86-64, NUMA: Unify emulated distance mapping") because it changes cpu -> node mapping in the process of dropping fake_physnodes(). old) all cpus are assinged node 0 now) cpus are assigned round robin (the logic is implemented by numa_init_array()) Note: The change in behavior only happens if the system doesn't have neither ACPI SRAT table nor AMD northbridge NUMA information. Round robin assignment doesn't work because init_numa_sched_groups_power() assumes all logical cpus in the same physical cpu share the same node (then it only accounts for group_first_cpu()), and the simple round robin breaks the above assumption. Thus, this patch implements a reassignment of node-ids if buggy firmware or numa emulation makes wrong cpu node map. Tt enforce all logical cpus in the same physical cpu share the same node. Signed-off-by: NKOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Acked-by: NTejun Heo <tj@kernel.org> Cc: Yinghai Lu <yinghai@kernel.org> Cc: Brian Gerst <brgerst@gmail.com> Cc: Cyrill Gorcunov <gorcunov@gmail.com> Cc: Shaohui Zheng <shaohui.zheng@intel.com> Cc: David Rientjes <rientjes@google.com> Cc: H. Peter Anvin <hpa@linux.intel.com> Link: http://lkml.kernel.org/r/20110415203928.1303.A69D9226@jp.fujitsu.comSigned-off-by: NIngo Molnar <mingo@elte.hu>
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- 15 4月, 2011 13 次提交
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git://git.kernel.dk/linux-2.6-block由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.dk/linux-2.6-block: block: only force kblockd unplugging from the schedule() path block: cleanup the block plug helper functions block, blk-sysfs: Use the variable directly instead of a function call block: move queue run on unplug to kblockd block: kill queue_sync_plugs() block: readd plug trace event block: add callback function for unplug notification block: add comment on why we save and disable interrupts in flush_plug_list() block: fixup block IO unplug trace call block: remove block_unplug_timer() trace point block: splice plug list to local context
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git://git.infradead.org/ubifs-2.6由 Linus Torvalds 提交于
* 'linux-next' of git://git.infradead.org/ubifs-2.6: UBIFS: fix compilation warnings when compiling with gcc 4.5 UBIFS: fix oops when R/O file-system is fsync'ed
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由 Darren Hart 提交于
The FLAGS_HAS_TIMEOUT flag was not getting set, causing the restart_block to restart futex_wait() without a timeout after a signal. Commit b41277dc in 2.6.38 introduced the regression by accidentally removing the the FLAGS_HAS_TIMEOUT assignment from futex_wait() during the setup of the restart block. Restore the originaly behavior. Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=32922Reported-by: NTim Smith <tsmith201104@yahoo.com> Reported-by: NTorsten Hilbrich <torsten.hilbrich@secunet.com> Signed-off-by: NDarren Hart <dvhart@linux.intel.com> Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: John Kacur <jkacur@redhat.com> Cc: stable@kernel.org Link: http://lkml.kernel.org/r/%3Cdaac0eb3af607f72b9a4d3126b2ba8fb5ed3b883.1302820917.git.dvhart%40linux.intel.com%3ESigned-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Linus Torvalds 提交于
The case we should be verifying when updating the dentry name is that the _parent_ inode (the directory) semaphore is held, not the semaphore for the dentry itself. It's the directory locking that rename and readdir() etc all care about. The comment just above even says so - but then the BUG_ON() still checked the dentry inode itself. Very few people noticed, because this helper function really isn't used for very much, so you had to be using ncpfs to ever hit it. I think I should just remove the BUG_ON (the function really has just one user), but let's run with it fixed for a while before getting rid of it entirely. Reported-and-tested-by: NBongani Hlope <bonganih@bankservafrica.com> Reported-and-tested-by: NBernd Feige <bernd.feige@uniklinik-freiburg.de> Cc: Petr Vandrovec <petr@vandrovec.name>, Cc: Arnd Bergmann <arnd@arndb.de> Cc: Christoph Hellwig <hch@lst.de> Cc: Nick Piggin <npiggin@kernel.dk> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jens Axboe 提交于
For the explicit unplugging, we'd prefer to kick things off immediately and not pay the penalty of the latency to switch to kblockd. So let blk_finish_plug() do the run inline, while the implicit-on-schedule-out unplug will punt to kblockd. Signed-off-by: NJens Axboe <jaxboe@fusionio.com>
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由 Christoph Hellwig 提交于
It's a bit of a mess currently. task->plug is being cleared and reset in __blk_finish_plug(), and blk_finish_plug() is testing for a NULL plug which cannot happen even from schedule() anymore since it uses blk_needs_flush_plug() to determine whether to call into this function at all. So get rid of some of the cruft. Signed-off-by: NJens Axboe <jaxboe@fusionio.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin: Blackfin: SMP: fix cache flush loop Blackfin: time-ts: ack gptimer sooner to avoid missing short ints Blackfin: gptimers: fix thinko when disabling timers Blackfin: SMP: make all barriers handle cache issues
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git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: libceph: fix linger request requeueing
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由 Ben Hutchings 提交于
The conventional format for boolean attributes in sysfs is numeric ("0" or "1" followed by new-line). Any boolean attribute can then be read and written using a generic function. Using the strings "yes [no]", "[yes] no" (read), "yes" and "no" (write) will frustrate this. [akpm@linux-foundation.org: use kstrtoul()] [akpm@linux-foundation.org: test_bit() doesn't return 1/0, per Neil] Signed-off-by: NBen Hutchings <ben@decadent.org.uk> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Mel Gorman <mel@csn.ul.ie> Cc: Johannes Weiner <jweiner@redhat.com> Cc: Rik van Riel <riel@redhat.com> Cc: Hugh Dickins <hughd@google.com> Tested-by: NDavid Rientjes <rientjes@google.com> Cc: NeilBrown <neilb@suse.de> Cc: <stable@kernel.org> [2.6.38.x] Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Bob Liu 提交于
On no-mmu arch, there is a memleak during shmem test. The cause of this memleak is ramfs_nommu_expand_for_mapping() added page refcount to 2 which makes iput() can't free that pages. The simple test file is like this: int main(void) { int i; key_t k = ftok("/etc", 42); for ( i=0; i<100; ++i) { int id = shmget(k, 10000, 0644|IPC_CREAT); if (id == -1) { printf("shmget error\n"); } if(shmctl(id, IPC_RMID, NULL ) == -1) { printf("shm rm error\n"); return -1; } } printf("run ok...\n"); return 0; } And the result: root:/> free total used free shared buffers Mem: 60320 17912 42408 0 0 -/+ buffers: 17912 42408 root:/> shmem run ok... root:/> free total used free shared buffers Mem: 60320 19096 41224 0 0 -/+ buffers: 19096 41224 root:/> shmem run ok... root:/> free total used free shared buffers Mem: 60320 20296 40024 0 0 -/+ buffers: 20296 40024 ... After this patch the test result is:(no memleak anymore) root:/> free total used free shared buffers Mem: 60320 16668 43652 0 0 -/+ buffers: 16668 43652 root:/> shmem run ok... root:/> free total used free shared buffers Mem: 60320 16668 43652 0 0 -/+ buffers: 16668 43652 Signed-off-by: NBob Liu <lliubbo@gmail.com> Acked-by: NHugh Dickins <hughd@google.com> Signed-off-by: NDavid Howells <dhowells@redhat.com> Cc: <stable@kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Richard Weinberger 提交于
Commit 8a5ec0ba "Lockless (and preemptless) fastpaths for slub" makes use of this_cpu_cmpxchg_double() which needs this_cpu_cmpxchg16b_emu() on x86_64. Implementing cmpxchg16b emulation for UML would introduce too much complexity. So just disable it. Signed-off-by: NRichard Weinberger <richard@nod.at> Reported-by: NSergei Trofimovich <slyich@gmail.com> Acked-by: NPekka Enberg <penberg@kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Richard Weinberger 提交于
Commit 1de1502c ("x86, um: now we can get rid of trivial uml headers") removed accidentally bug.h which broke UML's call tracer and bug handler. Without asm-generic/bug.h UML uses BUG() from arch/x86/ which makes use of ud2. UML cannot use ud2, it raises SIGILL in user mode. As UML has a different stack for handling signals the call trace will be cut off. Signed-off-by: NRichard Weinberger <richard@nod.at> Reported-by: NSergei Trofimovich <slyich@gmail.com> Tested-by: NSergei Trofimovich <slyich@gmail.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jeff Mahoney 提交于
force_o_largefile() on ia64 is defined in <asm/fcntl.h> and requires <linux/personality.h>. Signed-off-by: NJeff Mahoney <jeffm@suse.com> Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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