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* Do not account for the address space used by hugetlbfs using VM_ACCOUNTMel Gorman2009-02-102-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | When overcommit is disabled, the core VM accounts for pages used by anonymous shared, private mappings and special mappings. It keeps track of VMAs that should be accounted for with VM_ACCOUNT and VMAs that never had a reserve with VM_NORESERVE. Overcommit for hugetlbfs is much riskier than overcommit for base pages due to contiguity requirements. It avoids overcommiting on both shared and private mappings using reservation counters that are checked and updated during mmap(). This ensures (within limits) that hugepages exist in the future when faults occurs or it is too easy to applications to be SIGKILLed. As hugetlbfs makes its own reservations of a different unit to the base page size, VM_ACCOUNT should never be set. Even if the units were correct, we would double account for the usage in the core VM and hugetlbfs. VM_NORESERVE may be set because an application can request no reserves be made for hugetlbfs at the risk of getting killed later. With commit fc8744adc870a8d4366908221508bb113d8b72ee, VM_NORESERVE and VM_ACCOUNT are getting unconditionally set for hugetlbfs-backed mappings. This breaks the accounting for both the core VM and hugetlbfs, can trigger an OOM storm when hugepage pools are too small lockups and corrupted counters otherwise are used. This patch brings hugetlbfs more in line with how the core VM treats VM_NORESERVE but prevents VM_ACCOUNT being set. Signed-off-by: Mel Gorman <mel@csn.ul.ie> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'drm-fixes' of ↵Linus Torvalds2009-02-091-0/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 * 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: drm/i915: select framebuffer support automatically drm/i915: add get_vblank_counter function for GM45 drm/i915: capture last_vblank count at IRQ uninstall time too drm/i915: Unlock mutex on i915_gem_fault() error path drm/i915: Quiet the message on get/setparam ioctl with an unknown value. drm/i915: skip LVDS initialization on Apple Mac Mini drm/i915: sync SDVO code with stable userland modesetting driver drm/i915: Unref the object after failing to set tiling mode. drm/i915: add fence register management to execbuf drm/i915: Return error from i915_gem_object_get_fence_reg() when failing. drm/i915: Set up an MTRR covering the GTT at driver load. drm/i915: Skip SDVO/HDMI init when the chipset tells us it's not present. drm/i915: Suppress GEM teardown on X Server exit in KMS mode. drm/radeon: fix ioremap conflict with AGP mappings i915: fix unneeded locking in i915 LVDS get modes code.
| * drm/i915: add fence register management to execbufJesse Barnes2009-02-081-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | Adds code to set up fence registers at execbuf time on pre-965 chips as necessary. Also fixes up a few bugs in the pre-965 tile register support (get_order != ffs). The number of fences available to the kernel defaults to the hw limit minus 3 (for legacy X front/back/depth), but a new parameter allows userspace to override that as needed. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Eric Anholt <eric@anholt.net> Signed-off-by: Dave Airlie <airlied@linux.ie>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds2009-02-092-2/+7
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: scatterwalk - Avoid flush_dcache_page on slab pages crypto: shash - Fix tfm destruction crypto: api - Fix zeroing on free crypto: shash - Fix module refcount crypto: api - Fix algorithm test race that broke aead initialisation
| * | crypto: shash - Fix tfm destructionHerbert Xu2009-02-051-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | We were freeing an offset into the slab object instead of the start. This patch fixes it by calling crypto_destroy_tfm which allows the correct address to be given. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | crypto: api - Fix zeroing on freeHerbert Xu2009-02-051-1/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | Geert Uytterhoeven pointed out that we're not zeroing all the memory when freeing a transform. This patch fixes it by calling ksize to ensure that we zero everything in sight. Reported-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* | | x86: spinlocks: define dummy __raw_spin_is_contendedKyle McMartin2009-02-091-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Architectures other than mips and x86 are not using ticket spinlocks. Therefore, the contention on the lock is meaningless, since there is nobody known to be waiting on it (arguably /fairly/ unfair locks). Dummy it out to return 0 on other architectures. Signed-off-by: Kyle McMartin <kyle@redhat.com> Acked-by: Ralf Baechle <ralf@linux-mips.org> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | async: Rename _special -> _domain for clarity.Cornelia Huck2009-02-081-3/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | Rename the async_*_special() functions to async_*_domain(), which describes the purpose of these functions much better. [Broke up long lines to silence checkpatch] Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
* | | Merge branch 'for-linus' of ↵Linus Torvalds2009-02-071-1/+1
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: PCI PM: make the PM core more careful with drivers using the new PM framework PCI PM: Read power state from device after trying to change it on resume PCI PM: Do not disable and enable bridges during suspend-resume PCI: PCIe portdrv: Simplify suspend and resume PCI PM: Fix saving of device state in pci_legacy_suspend PCI PM: Check if the state has been saved before trying to restore it PCI PM: Fix handling of devices without drivers PCI: return error on failure to read PCI ROMs PCI: properly clean up ASPM link state on device remove
| * | | PCI: return error on failure to read PCI ROMsTimothy S. Nelson2009-02-041-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch makes the ROM reading code return an error to user space if the size of the ROM read is equal to 0. The patch also emits a warnings if the contents of the ROM are invalid, and documents the effects of the "enable" file on ROM reading. Signed-off-by: Timothy S. Nelson <wayland@wayland.id.au> Acked-by: Alex Villacis-Lasso <a_villacis@palosanto.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
* | | | module: remove over-zealous check in __module_get()Rusty Russell2009-02-071-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: fix spurious BUG_ON() triggered under load module_refcount() isn't reliable outside stop_machine(), as demonstrated by Karsten Keil <kkeil@suse.de>, networking can trigger it under load (an inc on one cpu and dec on another while module_refcount() is tallying can give false results, for example). Almost noone should be using __module_get, but that's another issue. Cc: Karsten Keil <kkeil@suse.de> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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*-------. \ \ \ Merge branches 'release', 'asus', 'bugzilla-12450', 'cpuidle', 'debug', ↵Len Brown2009-02-07295-15460/+510
|\ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | 'ec', 'misc', 'printk' and 'processor' into release
| | | | * | | | | atyfb: fix CONFIG_ namespace violationsRandy Dunlap2009-02-053-23/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix namespace violations by changing non-kconfig CONFIG_ names to CNFG_*. Fixes breakage in staging/, which adds a real CONFIG_PANEL. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| | | | * | | | | wait: prevent exclusive waiter starvationJohannes Weiner2009-02-051-2/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With exclusive waiters, every process woken up through the wait queue must ensure that the next waiter down the line is woken when it has finished. Interruptible waiters don't do that when aborting due to a signal. And if an aborting waiter is concurrently woken up through the waitqueue, noone will ever wake up the next waiter. This has been observed with __wait_on_bit_lock() used by lock_page_killable(): the first contender on the queue was aborting when the actual lock holder woke it up concurrently. The aborted contender didn't acquire the lock and therefor never did an unlock followed by waking up the next waiter. Add abort_exclusive_wait() which removes the process' wait descriptor from the waitqueue, iff still queued, or wakes up the next waiter otherwise. It does so under the waitqueue lock. Racing with a wake up means the aborting process is either already woken (removed from the queue) and will wake up the next waiter, or it will remove itself from the queue and the concurrent wake up will apply to the next waiter after it. Use abort_exclusive_wait() in __wait_event_interruptible_exclusive() and __wait_on_bit_lock() when they were interrupted by other means than a wake up through the queue. [akpm@linux-foundation.org: coding-style fixes] Reported-by: Chris Mason <chris.mason@oracle.com> Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Mentored-by: Oleg Nesterov <oleg@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Matthew Wilcox <matthew@wil.cx> Cc: Chuck Lever <cel@citi.umich.edu> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Cc: Ingo Molnar <mingo@elte.hu> Cc: <stable@kernel.org> ["after some testing"] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| | | | * | | | | fbmem: don't call copy_from/to_user() with mutex heldAndrea Righi2009-02-051-0/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Avoid calling copy_from/to_user() with fb_info->lock mutex held in fbmem ioctl(). fb_mmap() is called under mm->mmap_sem (A) held, that also acquires fb_info->lock (B); fb_ioctl() takes fb_info->lock (B) and does copy_from/to_user() that might acquire mm->mmap_sem (A), causing a deadlock. NOTE: it doesn't push down the fb_info->lock in each own driver's fb_ioctl(), so there are still potential deadlocks elsewhere. Signed-off-by: Andrea Righi <righi.andrea@gmail.com> Cc: Dave Jones <davej@redhat.com> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: Johannes Weiner <hannes@saeurebad.de> Cc: Krzysztof Helt <krzysztof.h1@wp.pl> Cc: Harvey Harrison <harvey.harrison@gmail.com> Cc: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| | | | * | | | | generic swap(): don't return a value from swap()Peter Zijlstra2009-02-051-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The swap() macro is accidentally retuning the value of its first argument. Change it into a doesn't-return-anything macro before someone goes and relies upon this behaviour. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Wu Fengguang <wfg@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| | | | * | | | | Merge branch 'sched-fixes-for-linus' of ↵Linus Torvalds2009-02-041-0/+1
| | | | |\ \ \ \ \ | | | | | |_|/ / / | | | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: sched: add missing kernel-doc in sched.h
| | | | | * | | | sched: add missing kernel-doc in sched.hRandy Dunlap2009-02-031-0/+1
| | | | | | |_|/ | | | | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add kernel-doc notation for @lock: include/linux/sched.h:457: No description found for parameter 'lock' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | | * | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2009-02-042-1/+4
| | | | |\ \ \ \ | | | | | |_|/ / | | | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: sunrpc: fix rdma dependencies e1000: Fix PCI enable to honor the need_ioport flag sgi-xp: link XPNET's net_device_ops to its net_device structure pcnet_cs: Fix misuse of the equality operator. hso: add new device id's dca: redesign locks to fix deadlocks cassini/sungem: limit reaches -1, but 0 tested net: variables reach -1, but 0 tested qlge: bugfix: Add missing netif_napi_del call. qlge: bugfix: Add flash offset for second port. qlge: bugfix: Fix endian issue when reading flash. udp: increments sk_drops in __udp_queue_rcv_skb() net: Fix userland breakage wrt. linux/if_tunnel.h net: packet socket packet_lookup_frame fix
| | | | | * | | Merge branch 'master' of ↵David S. Miller2009-02-02105-128/+350
| | | | | |\ \ \ | | | | | | |/ / | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
| | | | | * | | net: Fix userland breakage wrt. linux/if_tunnel.hDavid S. Miller2009-02-022-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Reported by Andrew Walrond <andrew@walrond.org> Changeset c19e654ddbe3831252f61e76a74d661e1a755530 ("gre: Add netlink interface") added an include of linux/ip.h to linux/if_tunnel.h We can't really let that get exposed to userspace because this conflicts with types defined in netinet/ip.h which userland is almost certainly going to have included either explicitly or implicitly. So guard this include with a __KERNEL__ ifdef. Signed-off-by: David S. Miller <davem@davemloft.net>
| | | | * | | | Merge branch 'upstream-linus' of ↵Linus Torvalds2009-02-032-13/+21
| | | | |\ \ \ \ | | | | | |_|/ / | | | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: implement HORKAGE_1_5_GBPS and apply it to WD My Book libata: add no penalty retry request for EH device handling routines libata: improve probe failure handling libata: add @spd_limit to sata_down_spd_limit() libata: clear dev->ering in smarter way libata: check onlineness before using SPD in sata_down_spd_limit() libata: move ata_dev_disable() to libata-eh.c libata: fix EH device failure handling sata_nv: ck804 has borked hardreset too ide/libata: fix ata_id_is_cfa() (take 4) libata: fix kernel-doc warnings ahci: add a module parameter to ignore the SSS flags for async scanning sata_mv: Fix chip type for Hightpoint RocketRaid 1740/1742 [libata] sata_sil: Fix compilation error with libata debugging enabled
| | | | | * | | libata: implement HORKAGE_1_5_GBPS and apply it to WD My BookTejun Heo2009-02-021-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 3Gbps is often much more prone to transmission failures. It's usually okay to let EH handle speed down after transmission failures but some WD My Book drives completely shutdown after certain transmission failures and after it only power cycling can revive them. Combined with the fact that external drives often end up with cable assembly which is longer than usual and more likely to have intervening gender, this makes these drives very likely to shutdown under certain configurations virtually rendering them unusable. This patch implements HOARKGE_1_5_GBPS and applies it to WD My Book such that 1.5Gbps is forced once the device is identified. Please take a look at the following bz for related reports. http://bugzilla.kernel.org/show_bug.cgi?id=9913 Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| | | | | * | | libata: clear dev->ering in smarter wayTejun Heo2009-02-021-8/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | dev->ering used to be cleared together with the rest of ata_device in ata_dev_init() which is called whenever a probing event occurs. dev->ering is about to be used to track probing failures so it needs to remain persistent over multiple porbing events. This patch achieves this by doing the following. * Instead of CLEAR_OFFSET, define CLEAR_BEGIN and CLEAR_END and only clear between BEGIN and END. ering is moved after END. The split of persistent area is to allow hotter items remain at the head. * ering is explicitly cleared on ata_dev_disable() and when device attach succeeds. So, ering is persistent throug a device's life time (unless explicitly cleared of course) and also through periods inbetween disablement of an attached device and successful detection of the next one. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| | | | | * | | ide/libata: fix ata_id_is_cfa() (take 4)Sergei Shtylyov2009-02-021-5/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When checking for the CFA feature set support, ata_id_is_cfa() tests bit 2 in word 82 of the identify data instead the word 83; it also checks the ATA/PI version support in the word 80 (which the CompactFlash specifications have as reserved), this having no slightest chance to work on the modern CF cards that don't have 0x848A in the word 0... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| | | | * | | | Merge branch 'for-linus' of ↵Linus Torvalds2009-02-021-0/+1
| | | | |\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: PCI hotplug: Change link order of pciehp & acpiphp PCI hotplug: fakephp: Allocate PCI resources before adding the device PCI MSI: Fix undefined shift by 32 PCI PM: Do not wait for buses in B2 or B3 during resume PCI PM: Power up devices before restoring their state PCI PM: Fix hibernation breakage on EeePC 701 PCI: irq and pci_ids patch for Intel Tigerpoint DeviceIDs PCI PM: Fix suspend error paths and testing facility breakage
| | | | | * | | | PCI: irq and pci_ids patch for Intel Tigerpoint DeviceIDsSeth Heasley2009-01-271-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds the Intel Tigerpoint LPC Controller DeviceIDs. Signed-off-by: Seth Heasley <seth.heasley@intel.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| | | | * | | | | Merge branch 'for-linus' of ↵Linus Torvalds2009-02-021-8/+2
| | | | |\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6: slub: fix per cpu kmem_cache_cpu array memory leak kmalloc: return NULL instead of link failure
| | | | | * | | | | kmalloc: return NULL instead of link failureJeff Mahoney2009-01-271-8/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The SLAB kmalloc with a constant value isn't consistent with the other implementations because it bails out with __you_cannot_kmalloc_that_much rather than returning NULL and properly allowing the caller to fall back to vmalloc or take other action. This doesn't happen with a non-constant value or with SLOB or SLUB. Starting with 2.6.28, I've been seeing build failures on s390x. This is due to init_section_page_cgroup trying to allocate 2.5MB when the max size for a kmalloc on s390x is 2MB. It's failing because the value is constant. The workarounds at the call size are ugly and the caller shouldn't have to change behavior depending on what the backend of the API is. So, this patch eliminates the link failure and returns NULL like the other implementations. Signed-off-by: Jeff Mahoney <jeffm@suse.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Christoph Lameter <cl@linux-foundation.org> Cc: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Matt Mackall <mpm@selenic.com> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Cc: <stable@kernel.org> [2.6.28.x] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
| | | | * | | | | | Merge branch 'for_linus' of ↵Linus Torvalds2009-02-021-4/+4
| | | | |\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (45 commits) V4L/DVB (10411): s5h1409: Perform s5h1409 soft reset after tuning V4L/DVB (10403): saa7134-alsa: saa7130 doesn't support digital audio V4L/DVB (10229): ivtv: fix memory leak V4L/DVB (10385): gspca - main: Fix memory leak when USB disconnection while streaming. V4L/DVB (10325): em28xx: Fix for fail to submit URB with IRQs and Pre-emption Disabled V4L/DVB (10317): radio-mr800: fix radio->muted and radio->stereo V4L/DVB (10314): cx25840: ignore TUNER_SET_CONFIG in the command callback. V4L/DVB (10288): af9015: bug fix: stick does not work always when plugged V4L/DVB (10287): af9015: fix second FE V4L/DVB (10270): saa7146: fix unbalanced mutex_lock/unlock V4L/DVB (10265): budget.c driver: Kernel oops: "BUG: unable to handle kernel paging request at ffffffff V4L/DVB (10261): em28xx: fix kernel panic on audio shutdown V4L/DVB (10257): em28xx: Fix for KWorld 330U Board V4L/DVB (10256): em28xx: Fix for KWorld 330U AC97 V4L/DVB (10254): em28xx: Fix audio URB transfer buffer race condition V4L/DVB (10250): cx25840: fix regression: fw not loaded on first use V4L/DVB (10248): v4l-dvb: fix a bunch of compile warnings. V4L/DVB (10243): em28xx: fix compile warning V4L/DVB (10240): Fix obvious swapped names in v4l2_subdev logic V4L/DVB (10233): [PATCH] Terratec Cinergy DT XS Diversity new USB ID (0ccd:0081) ...
| | | | | * | | | | | V4L/DVB (10230): v4l2-device: fix buggy macroHans Verkuil2009-01-291-4/+4
| | |_|_|/ / / / / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| | | | * | | | | | Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds2009-02-022-5/+7
| | | | |\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of git://git.kernel.dk/linux-2.6-block: block: add text file detailing queue/ sysfs files bio.h: If they MUST be inlined, then use __always_inline Fix misleading comment in bio.h block: fix inconsistent parenthesisation of QUEUE_FLAG_DEFAULT block: fix oops in blk_queue_io_stat()
| | | | | * | | | | | bio.h: If they MUST be inlined, then use __always_inlineAlberto Bertogli2009-02-021-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | bvec_kmap_irq() and bvec_kunmap_irq() comments say they MUST be inlined, so mark them as __always_inline. Signed-off-by: Alberto Bertogli <albertito@blitiri.com.ar> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| | | | | * | | | | | Fix misleading comment in bio.hAlberto Bertogli2009-02-021-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The comment says "remember to add offset!", but the function already adds it. Signed-off-by: Alberto Bertogli <albertito@blitiri.com.ar> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| | | | | * | | | | | block: fix inconsistent parenthesisation of QUEUE_FLAG_DEFAULTJens Axboe2009-02-021-1/+1
| | | | | | |_|/ / / | | | | | |/| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| | | | * | | | | | modules: Use a better scheme for refcountingEric Dumazet2009-02-021-9/+16
| | | | |/ / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Current refcounting for modules (done if CONFIG_MODULE_UNLOAD=y) is using a lot of memory. Each 'struct module' contains an [NR_CPUS] array of full cache lines. This patch uses existing infrastructure (percpu_modalloc() & percpu_modfree()) to allocate percpu space for the refcount storage. Instead of wasting NR_CPUS*128 bytes (on i386), we now use nr_cpu_ids*sizeof(local_t) bytes. On a typical distro, where NR_CPUS=8, shiping 2000 modules, we reduce size of module files by about 2 Mbytes. (1Kb per module) Instead of having all refcounters in the same memory node - with TLB misses because of vmalloc() - this new implementation permits to have better NUMA properties, since each CPU will use storage on its preferred node, thanks to percpu storage. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| | | | * | | | | Merge branch 'header-fixes-for-linus' of ↵Linus Torvalds2009-01-3182-29/+116
| | | | |\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'header-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (90 commits) headers_check fix: x86, swab.h headers_check fix: x86, sigcontext32.h headers_check fix: x86, sigcontext.h headers_check fix: x86, ptrace-abi.h headers_check fix: x86, mtrr.h headers_check fix: x86, mce.h headers_check fix: x86, kvm.h headers_check fix: x86, e820.h headers_check fix: linux/rtnetlink.h headers_check fix: linux/nubus.h headers_check fix: video/uvesafb.h headers_check fix: video/sisfb.h headers_check fix: sound/hdsp.h headers_check fix: mtd/inftl-user.h headers_check fix: linux/virtio_net.h headers_check fix: linux/virtio_console.h headers_check fix: linux/virtio_blk.h headers_check fix: linux/videodev.h headers_check fix: linux/video_encoder.h headers_check fix: linux/video_decoder.h ...
| | | | | * | | | | headers_check fix: linux/rtnetlink.hJaswinder Singh Rajput2009-01-311-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | fix the following 'make headers_check' warning: usr/include/linux/rtnetlink.h:328: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| | | | | * | | | | headers_check fix: linux/nubus.hJaswinder Singh Rajput2009-01-311-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | fix the following 'make headers_check' warning: usr/include/linux/nubus.h:232: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| | | | | * | | | | headers_check fix: video/uvesafb.hJaswinder Singh Rajput2009-01-311-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | fix the following 'make headers_check' warning: usr/include/video/uvesafb.h:5: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| | | | | * | | | | headers_check fix: video/sisfb.hJaswinder Singh Rajput2009-01-311-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | fix the following 'make headers_check' warnings: usr/include/video/sisfb.h:25: include of <linux/types.h> is preferred over <asm/types.h> usr/include/video/sisfb.h:78: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| | | | | * | | | | headers_check fix: sound/hdsp.hJaswinder Singh Rajput2009-01-311-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | fix the following 'make headers_check' warning: usr/include/sound/hdsp.h:33: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| | | | | * | | | | headers_check fix: mtd/inftl-user.hJaswinder Singh Rajput2009-01-311-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | fix the following 'make headers_check' warning: usr/include/mtd/inftl-user.h:61: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| | | | | * | | | | headers_check fix: linux/virtio_net.hJaswinder Singh Rajput2009-01-311-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | fix the following 'make headers_check' warning: usr/include/linux/virtio_net.h:28: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| | | | | * | | | | headers_check fix: linux/virtio_console.hJaswinder Singh Rajput2009-01-311-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | fix the following 'make headers_check' warning: usr/include/linux/virtio_console.h:15: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| | | | | * | | | | headers_check fix: linux/virtio_blk.hJaswinder Singh Rajput2009-01-311-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | fix the following 'make headers_check' warning: usr/include/linux/virtio_blk.h:21: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| | | | | * | | | | headers_check fix: linux/videodev.hJaswinder Singh Rajput2009-01-311-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | fix the following 'make headers_check' warning: usr/include/linux/videodev.h:53: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| | | | | * | | | | headers_check fix: linux/video_encoder.hJaswinder Singh Rajput2009-01-311-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | fix the following 'make headers_check' warning: usr/include/linux/video_encoder.h:5: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| | | | | * | | | | headers_check fix: linux/video_decoder.hJaswinder Singh Rajput2009-01-311-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | fix the following 'make headers_check' warning: usr/include/linux/video_decoder.h:7: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| | | | | * | | | | headers_check fix: linux/taskstats.hJaswinder Singh Rajput2009-01-311-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | fix the following 'make headers_check' warning: usr/include/linux/taskstats.h:44: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
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