- 26 6月, 2009 11 次提交
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由 Benjamin Herrenschmidt 提交于
Commit 31207dab "Fix incorrect allocation of interrupt rev-map" introduced a regression crashing on boot on machines using a "DCR" based MPIC, such as the Cell blades. The reason is that the irq host data structure is initialized much later as a result of that patch, causing our calls to mpic_map() do be done before we have a host setup. Unfortunately, this breaks _mpic_map_dcr() which uses the mpic->irqhost to get to the device node. This fixes it by, instead, passing the device node explicitely to mpic_map(). Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: NAkira Tsukamoto <akirat@rd.scei.sony.co.jp>
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由 Michael Ellerman 提交于
Turning on SWIOTLB selects or enables PPC_NEED_DMA_SYNC_OPS, which means we get the non empty versions of dma_sync_* in asm/dma-mapping.h On my pseries machine the dma_ops have no such routines and we die with a null pointer - this patch gets it booting, is there a more elegant way to do it? Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6由 Linus Torvalds 提交于
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (28 commits) drm: remove unused #include <linux/version.h>'s drm/radeon: fix driver initialization order so radeon kms can be builtin drm: Fix shifts which were miscalculated when converting from bitfields. drm/radeon: Clear surface registers at initialization time. drm/radeon: Don't initialize acceleration related fields of struct fb_info. drm/radeon: fix radeon kms framebuffer device drm/i915: initialize fence registers to zero when loading GEM drm/i915: Fix HDMI regression introduced in new chipset support drm/i915: fix LFP data fetch drm/i915: set TV detection mode when tv is already connected drm/i915: Catch up to obj_priv->page_list rename in disabled debug code. drm/i915: Fix size_t handling in off-by-default debug printfs drm/i915: Don't change the blank/sync width when calculating scaled modes drm/i915: Add support for changing LVDS panel fitting using an output property. drm/i915: correct suspend/resume ordering drm/i915: Add missing dependency on Intel AGP support. drm/i915: Generate 2MHz clock for display port aux channel I/O. Retry I/O. drm/i915: Clarify error returns from display port aux channel I/O drm/i915: Add CLKCFG register definition drm/i915: Split array of DAC limits into separate structures. ...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip由 Linus Torvalds 提交于
* 'futexes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: futex: request only one page from get_user_pages()
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This commit 335f8514 has stopped properly checking if there is any usb serial associated with the tty in the close function. It happens the close function is called by releasing the terminal right after opening the device fails. As an example, open fails with a non-existing device, when probe has never been called, because the device has never been plugged. This is common in systems with static modules and no udev. Signed-off-by: NThadeu Lima de Souza Cascardo <cascardo@holoscopio.com> Signed-off-by: NAlan Cox <alan@linux.intel.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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This commit 10077d4a has stopped checking if there was a valid acm device associated to the tty, which is not true right after open fails and tty subsystem tries to close the device. As an example, open fails with a non-existing device, when probe has never been called, because the device has never been plugged. This is common in systems with static modules and no udev. Signed-off-by: NThadeu Lima de Souza Cascardo <cascardo@holoscopio.com> Signed-off-by: NAlan Cox <alan@linux.intel.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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This is required, otherwise a user will get a EINVAL while opening a non-existing device, instead of ENODEV. This is what I get with this patch applied now instead of an "Invalid argument". cascardo@vespa:~$ cat /dev/ttyACM0 cat: /dev/ttyACM0: No such device cascardo@vespa:~$ Signed-off-by: NThadeu Lima de Souza Cascardo <cascardo@holoscopio.com> Signed-off-by: NAlan Cox <alan@linux.intel.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-2.6由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-2.6: ide cs5520: Initialize second port's interrupt number. ide: improve handling of Power Management requests ide: add QUANTUM FIREBALLct20 30 with firmware APL.090 to ivb_list[] ide: relax DMA info validity checking ide-cd: Improve "weird block size" error message ide-cd: Don't warn on bogus block size unless it actually matters. ide: fix handling of unexpected IRQs vs request_irq()
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由 Peter Zijlstra 提交于
Currently the 4th parameter of get_user_pages() is called len, but its in pages, not bytes. Rename the thing to nr_pages to avoid future confusion. Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Paul Menage 提交于
UML: Fix some apparent bitrot - migration of net_device methods into net_device_ops - dma_sync_single() changes Signed-off-by: NPaul Menage <menage@google.com> Acked-by: NAmerigo Wang <xiyou.wangcong@gmail.com> -- This version is split from my earlier patch, including just the portions that ar required for Linus' tree. Fixes the following compile errors: include/linux/dma-mapping.h:113: error: redefinition of 'dma_sync_single' arch/um/include/asm/dma-mapping.h:84: error: previous definition of 'dma_sync_single' was here include/linux/dma-mapping.h: In function 'dma_sync_single': include/linux/dma-mapping.h:117: error: implicit declaration of function 'dma_sync_single_for_cpu' include/linux/dma-mapping.h: At top level: include/linux/dma-mapping.h:120: error: redefinition of 'dma_sync_sg' arch/um/include/asm/dma-mapping.h:91: error: previous definition of 'dma_sync_sg' was here include/linux/dma-mapping.h: In function 'dma_sync_sg': include/linux/dma-mapping.h:124: error: implicit declaration of function 'dma_sync_sg_for_cpu' arch/um/drivers/slirp_kern.c: In function 'slirp_init': arch/um/drivers/slirp_kern.c:35: error: 'struct net_device' has no member named 'init' Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Ingo Molnar 提交于
This build error triggers on x86: drivers/built-in.o: In function `i2c_dw_init': i2c-designware.c:(.text+0x4e37ca): undefined reference to `clk_get_rate' drivers/built-in.o: In function `dw_i2c_probe': i2c-designware.c:(.devinit.text+0x51f5e): undefined reference to `clk_get' i2c-designware.c:(.devinit.text+0x51f76): undefined reference to `clk_enable' i2c-designware.c:(.devinit.text+0x520ff): undefined reference to `clk_disable' i2c-designware.c:(.devinit.text+0x52108): undefined reference to `clk_put' Because this new driver uses the clk_*() facilities which is an ARM-only thing currently. Signed-off-by: NIngo Molnar <mingo@elte.hu> Acked-by: NBaruch Siach <baruch@tkos.co.il> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 25 6月, 2009 29 次提交
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由 Thomas Gleixner 提交于
Yanmin noticed that fault_in_user_writeable() requests 4 pages instead of one. That's the result of blindly trusting Linus' proposal :) I even looked up the prototype to verify the correctness: the argument in question is confusingly enough named "len" while in reality it means number of pages. Pointed-out-by: NYanmin Zhang <yanmin_zhang@linux.intel.com> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Linus Torvalds 提交于
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由 Linus Torvalds 提交于
This reverts commit 9e9f46c4. Quoting from the commit message: "At this point, it seems to solve more problems than it causes, so let's try using it by default. It's an easy revert if it ends up causing trouble." And guess what? The _CRS code causes trouble. Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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git://git.infradead.org/battery-2.6由 Linus Torvalds 提交于
* git://git.infradead.org/battery-2.6: da9030_battery: Fix race between event handler and monitor Add MAX17040 Fuel Gauge driver w1: ds2760_battery: add support for sleep mode feature w1: ds2760: add support for EEPROM read and write ds2760_battery: cleanups in ds2760_battery_probe()
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由 Linus Torvalds 提交于
Merge branches 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/{vfs-2.6,audit-current} * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: another race fix in jfs_check_acl() Get "no acls for this inode" right, fix shmem breakage inline functions left without protection of ifdef (acl) * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current: audit: inode watches depend on CONFIG_AUDIT not CONFIG_AUDIT_SYSCALL
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Eric Paris 提交于
Even though one cannot make use of the audit watch code without CONFIG_AUDIT_SYSCALL the spaghetti nature of the audit code means that the audit rule filtering requires that it at least be compiled. Thus build the audit_watch code when we build auditfilter like it was before cfcad62c Clearly this is a point of potential future cleanup.. Reported-by: NFrans Pop <elendil@planet.nl> Signed-off-by: NEric Paris <eparis@redhat.com> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Markus Trippelsdorf 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip由 Linus Torvalds 提交于
* 'futexes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: futex: Fix the write access fault problem for real
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由 Thomas Gleixner 提交于
commit 64d1304a (futex: setup writeable mapping for futex ops which modify user space data) did address only half of the problem of write access faults. The patch was made on two wrong assumptions: 1) access_ok(VERIFY_WRITE,...) would actually check write access. On x86 it does _NOT_. It's a pure address range check. 2) a RW mapped region can not go away under us. That's wrong as well. Nobody can prevent another thread to call mprotect(PROT_READ) on that region where the futex resides. If that call hits between the get_user_pages_fast() verification and the actual write access in the atomic region we are toast again. The solution is to not rely on access_ok and get_user() for any write access related fault on private and shared futexes. Instead we need to fault it in with verification of write access. There is no generic non destructive write mechanism which would fault the user page in trough a #PF, but as we already know that we will fault we can as well call get_user_pages() directly and avoid the #PF overhead. If get_user_pages() returns -EFAULT we know that we can not fix it anymore and need to bail out to user space. Remove a bunch of confusing comments on this issue as well. Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Cc: stable@kernel.org
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由 Pekka Enberg 提交于
SLUB uses higher order allocations by default but falls back to small orders under memory pressure. Make sure the GFP mask used in the initial allocation doesn't include __GFP_NOFAIL. Signed-off-by: NPekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Linus Torvalds 提交于
Traditionally, we never failed small orders (even regardless of any __GFP_NOFAIL flags), and slab will allocate order-1 allocations even for small allocations that could fit in a single page (in order to avoid excessive fragmentation). Maybe we should remove this warning entirely, but before making that judgement, at least limit it to bigger allocations. Acked-by: NPekka Enberg <penberg@cs.helsinki.fi> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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git://ftp.linux-mips.org/pub/scm/upstream-linus由 Linus Torvalds 提交于
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: Staging: octeon-ethernet: Fix race freeing transmit buffers. Staging: octeon-ethernet: Convert to use net_device_ops. MIPS: Cavium: Add CPU hotplugging code. MIPS: SMP: Allow suspend and hibernation if CPU hotplug is available MIPS: Add arch generic CPU hotplug DMA: txx9dmac: use dma_unmap_single if DMA_COMPL_{SRC,DEST}_UNMAP_SINGLE set MIPS: Sibyte: Fix build error if CONFIG_SERIAL_SB1250_DUART is undefined. MIPS: MIPSsim: Fix build error if MSC01E_INT_BASE is undefined. MIPS: Hibernation: Remove SMP TLB and cacheflushing code. MIPS: Build fix - include <linux/smp.h> into all smp_processor_id() users. MIPS: bug.h Build fix - include <linux/compiler.h>.
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由 David Daney 提交于
The existing code had the following race: Thread-1 Thread-2 inc/read in_use inc/read in_use inc tx_free_list[qos].len inc tx_free_list[qos].len The actual in_use value was incremented twice, but thread-1 is going to free memory based on its stale value, and will free one too many times. The result is that memory is freed back to the kernel while its packet is still in the transmit buffer. If the memory is overwritten before it is transmitted, the hardware will put a valid checksum on it and send it out (just like it does with good packets). If by chance the TCP flags are clobbered but not the addresses or ports, the result can be a broken TCP stream. The fix is to track the number of freed packets in a single location (a Fetch-and-Add Unit register). That way it can never get out of sync with itself. We try to free up to MAX_SKB_TO_FREE (currently 10) buffers at a time. If fewer are available we adjust the free count with the difference. The action of claiming buffers to free is atomic so two threads cannot claim the same buffers. Signed-off-by: NDavid Daney <ddaney@caviumnetworks.com> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 David Daney 提交于
Convert the driver to use net_device_ops as it is now mandatory. Also compensate for the removal of struct sk_buff's dst field. The changes are mostly mechanical, the content of ethernet-common.c was moved to ethernet.c and ethernet-common.{c,h} are removed. Signed-off-by: NDavid Daney <ddaney@caviumnetworks.com> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
Thanks to Cavium Inc. for the code contribution and help. Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
The SMP implementation of suspend and hibernate depends on CPU hotplugging. In the past we didn't have CPU hotplug so suspend and hibernation were not possible on SMP systems. Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
Each platform has to add support for CPU hotplugging itself by providing suitable definitions for the cpu_disable and cpu_die of the smp_ops methods and setting SYS_SUPPORTS_HOTPLUG_CPU. A platform should only set SYS_SUPPORTS_HOTPLUG_CPU once all it's smp_ops definitions have the necessary changes. This patch contains the changes to the dummy smp_ops definition for uni-processor systems. Parts of the code contributed by Cavium Inc. Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Atsushi Nemoto 提交于
This patch does not change actual behaviour since dma_unmap_page is just an alias of dma_unmap_single on MIPS. Signed-off-by: NAtsushi Nemoto <anemo@mba.ocn.ne.jp> Cc: Ralf Baechle <ralf@linux-mips.org> Acked-by: NDan Williams <dan.j.williams@intel.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
This fixes kernel.org bugzilla 13596, see http://bugzilla.kernel.org/show_bug.cgi?id=13596 Reported-by: dvice_null@yahoo.com Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
This fixes kernel.org bugzilla 13595, see http://bugzilla.kernel.org/show_bug.cgi?id=13595 Reported-by: dvice_null@yahoo.com Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
We can't perform any flushes on SMP from swsusp_arch_resume because interrupts are disabled. A cross-CPU flush is unnecessary anyway because all but the local CPU have already been disabled. A local flush is not needed either because we didn't change any mappings. So just delete the code. Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
Some of the were relying into smp.h being dragged in by another header which of course is fragile. <asm/cpu-info.h> uses smp_processor_id() only in macros and including smp.h there leads to an include loop, so don't change cpu-info.h. Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
In the past this file somehow used to be dragged in. Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm: (48 commits) dm mpath: change to be request based dm: disable interrupt when taking map_lock dm: do not set QUEUE_ORDERED_DRAIN if request based dm: enable request based option dm: prepare for request based option dm raid1: add userspace log dm: calculate queue limits during resume not load dm log: fix create_log_context to use logical_block_size of log device dm target:s introduce iterate devices fn dm table: establish queue limits by copying table limits dm table: replace struct io_restrictions with struct queue_limits dm table: validate device logical_block_size dm table: ensure targets are aligned to logical_block_size dm ioctl: support cookies for udev dm: sysfs add suspended attribute dm table: improve warning message when devices not freed before destruction dm mpath: add service time load balancer dm mpath: add queue length load balancer dm mpath: add start_io and nr_bytes to path selectors dm snapshot: use barrier when writing exception store ...
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git://git.kernel.org/pub/scm/linux/kernel/git/dvrabel/uwb由 Linus Torvalds 提交于
* 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/dvrabel/uwb: uwb: allow WLP to be used with IPv6. uwb: event_size should be signed
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current由 Linus Torvalds 提交于
* 'audit.b63' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current: Fix rule eviction order for AUDIT_DIR Audit: clean up all op= output to include string quoting Audit: move audit_get_nd completely into audit_watch audit: seperate audit inode watches into a subfile Audit: clean up audit_receive_skb Audit: cleanup netlink mesg handling Audit: unify the printk of an skb when auditd not around Audit: dereferencing krule as if it were an audit_watch Audit: better estimation of execve record length Audit: fix audit watch use after free
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由 Jesper Nilsson 提交于
Posting to the dev-etrax mailing list is only allowed for subscribers, and the list is more geared toward user applications than kernel developers. Change to newly created mailing list for CRIS. Signed-off-by: NJesper Nilsson <jesper.nilsson@axis.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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