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* Merge branch 'release' of ↵Linus Torvalds2007-01-111-0/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: Revert "ACPI: ibm-acpi: make non-generic bay support optional" ACPI: update MAINTAINERS ACPI: schedule obsolete features for deletion ACPI: delete two spurious ACPI messages ACPI: rename cstate_entry_s to cstate_entry ACPI: ec: enable printk on cmdline use ACPI: Altix: ACPI _PRT support
| * Pull sgi into release branchLen Brown2007-01-111-0/+1
| |\
| | * ACPI: Altix: ACPI _PRT supportJohn Keller2007-01-041-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Provide ACPI _PRT support for SN Altix systems. The SN Altix platform does not conform to the IOSAPIC IRQ routing model, so a new acpi_irq_model (ACPI_IRQ_MODEL_PLATFORM) has been defined. The SN platform specific code sets acpi_irq_model to this new value, and keys off of it in acpi_register_gsi() to avoid the iosapic code path. Signed-off-by: John Keller <jpk@sgi.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | | [PATCH] Revert bd_mount_mutex back to a semaphoreDavid Chinner2007-01-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Revert bd_mount_mutex back to a semaphore so that xfs_freeze -f /mnt/newtest; xfs_freeze -u /mnt/newtest works safely and doesn't produce lockdep warnings. (XFS unlocks the semaphore from a different task, by design. The mutex code warns about this) Signed-off-by: Dave Chinner <dgc@sgi.com> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] NFS: Fix race in nfs_release_page()Trond Myklebust2007-01-111-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | NFS: Fix race in nfs_release_page() invalidate_inode_pages2() may find the dirty bit has been set on a page owing to the fact that the page may still be mapped after it was locked. Only after the call to unmap_mapping_range() are we sure that the page can no longer be dirtied. In order to fix this, NFS has hooked the releasepage() method and tries to write the page out between the call to unmap_mapping_range() and the call to remove_mapping(). This, however leads to deadlocks in the page reclaim code, where the page may be locked without holding a reference to the inode or dentry. Fix is to add a new address_space_operation, launder_page(), which will attempt to write out a dirty page without releasing the page lock. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Also, the bare SetPageDirty() can skew all sort of accounting leading to other nasties. [akpm@osdl.org: cleanup] Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] KVM: add VM-exit profilingIngo Molnar2007-01-111-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds the profile=kvm boot option, which enables KVM to profile VM exits. Use: "readprofile -m ./System.map | sort -n" to see the resulting output: [...] 18246 serial_out 148.3415 18945 native_flush_tlb 378.9000 23618 serial_in 212.7748 29279 __spin_unlock_irq 622.9574 43447 native_apic_write 2068.9048 52702 enable_8259A_irq 742.2817 54250 vgacon_scroll 89.3740 67394 ide_inb 6126.7273 79514 copy_page_range 98.1654 84868 do_wp_page 86.6000 140266 pit_read 783.6089 151436 ide_outb 25239.3333 152668 native_io_delay 21809.7143 174783 mask_and_ack_8259A 783.7803 362404 native_set_pte_at 36240.4000 1688747 total 0.5009 Signed-off-by: Ingo Molnar <mingo@elte.hu> Acked-by: Avi Kivity <avi@qumranet.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] Fix sparsemem on CellDave Hansen2007-01-112-3/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix an oops experienced on the Cell architecture when init-time functions, early_*(), are called at runtime. It alters the call paths to make sure that the callers explicitly say whether the call is being made on behalf of a hotplug even, or happening at boot-time. It has been compile tested on ppc64, ia64, s390, i386 and x86_64. Acked-by: Arnd Bergmann <arndb@de.ibm.com> Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Cc: Yasunori Goto <y-goto@jp.fujitsu.com> Acked-by: Andy Whitcroft <apw@shadowen.org> Cc: Christoph Lameter <clameter@engr.sgi.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] fix linux banner format stringRoman Zippel2007-01-101-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Revert previous attempts at messing with the linux banner string and simply use a separate format string for proc. Signed-off-by: Roman Zippel <zippel@linux-m68k.org> Acked-by: Olaf Hering <olaf@aepfle.de> Acked-by: Jean Delvare <khali@linux-fr.org> Cc: Andrey Borzenkov <arvidjaar@mail.ru> Cc: Andrew Morton <akpm@osdl.org> Cc: Andy Whitcroft <apw@shadowen.org> Cc: Herbert Poetzl <herbert@13thfloor.at> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [NETFILTER]: tcp conntrack: fix IP_CT_TCP_FLAG_CLOSE_INIT valuePatrick McHardy2007-01-091-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | IP_CT_TCP_FLAG_CLOSE_INIT is a flag and should have a value of 0x4 instead of 0x3, which is IP_CT_TCP_FLAG_WINDOW_SCALE | IP_CT_TCP_FLAG_SACK_PERM. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | [NETFILTER]: arp_tables: fix userspace compilationBart De Schuymer2007-01-091-0/+1
|/ / | | | | | | | | | | | | | | | | The included patch translates arpt_counters to xt_counters, making userspace arptables compile against recent kernels. Signed-off-by: Bart De Schuymer <bdschuym@pandora.be> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2007-01-081-1/+1
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] Provide basic printk_clock() implementation [ARM] Resolve fuse and direct-IO failures due to missing cache flushes [ARM] pass vma for flush_anon_page() [ARM] Fix potential MMCI bug [ARM] Fix kernel-mode undefined instruction aborts [ARM] 4082/1: iop3xx: fix iop33x gpio register offset [ARM] 4070/1: arch/arm/kernel: fix warnings from missing includes [ARM] 4079/1: iop: Update MAINTAINERS
| * | [ARM] pass vma for flush_anon_page()Russell King2007-01-081-1/+1
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since get_user_pages() may be used with processes other than the current process and calls flush_anon_page(), flush_anon_page() has to cope in some way with non-current processes. It may not be appropriate, or even desirable to flush a region of virtual memory cache in the current process when that is different to the process that we want the flush to occur for. Therefore, pass the vma into flush_anon_page() so that the architecture can work out whether the 'vmaddr' is for the current process or not. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | [PATCH] swsusp: Do not fail if resume device is not setRafael J. Wysocki2007-01-051-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | In the kernels later than 2.6.19 there is a regression that makes swsusp fail if the resume device is not explicitly specified. It can be fixed by adding an additional parameter to mm/swapfile.c:swap_type_of() allowing us to pass the (struct block_device *) corresponding to the first available swap back to the caller. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] KVM: Improve interrupt responseDor Laor2007-01-051-1/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current interrupt injection mechanism might delay an interrupt under the following circumstances: - if injection fails because the guest is not interruptible (rflags.IF clear, or after a 'mov ss' or 'sti' instruction). Userspace can check rflags, but the other cases or not testable under the current API. - if injection fails because of a fault during delivery. This probably never happens under normal guests. - if injection fails due to a physical interrupt causing a vmexit so that it can be handled by the host. In all cases the guest proceeds without processing the interrupt, reducing the interactive feel and interrupt throughput of the guest. This patch fixes the situation by allowing userspace to request an exit when the 'interrupt window' opens, so that it can re-inject the interrupt at the right time. Guest interactivity is very visibly improved. Signed-off-by: Dor Laor <dor.laor@qumranet.com> Signed-off-by: Avi Kivity <avi@qumranet.com> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] Add AFS_SUPER_MAGIC to magic.hAdam Megacz2007-01-051-0/+1
|/ | | | | | | | | | | | | | | | Jeffrey Altman, one of the gatekeepers of OpenAFS (the open source project which inherited the Transarc/IBM AFS codebase) has requested that the magic number 0x5346414F (little endian 'OAFS') be allocated for the f_type field of the fsinfo structure on Linux: https://lists.openafs.org/pipermail/openafs-info/2006-December/024829.html Add it to include/linux/magic.h, mostly as a way of publishing this number and ensuring that no other filesystem accidentally uses it. Cc: Jeffrey Altman <jaltman@secure-endpoints.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/agpgartLinus Torvalds2007-01-031-0/+1
|\ | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/davej/agpgart: [AGPGART] drivers/char/agp/sgi-agp.c: check kmalloc() return value [AGPGART] Fix PCI-posting flush typo. [AGPGART] fix detection of aperture size versus GTT size on G965 [AGPGART] Remove unnecessary flushes when inserting and removing pages. [AGPGART] K8M890 support for amd-k8.
| * [AGPGART] K8M890 support for amd-k8.Gabriel Mansi2006-12-181-0/+1
| | | | | | | | Signed-off-by: Dave Jones <davej@redhat.com>
* | [NET]: Don't export linux/random.h outside __KERNEL__.David Woodhouse2006-12-311-1/+1
| | | | | | | | | | | | | | | | | | Don't add it there please; add it lower down inside the existing #ifdef __KERNEL__. You just made the _userspace_ net.h include random.h, which then fails to compile unless <asm/types.h> was already included. Signed-off-by: David Woodhouse <dwmw2@infradead.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [NET]: Add memory barrrier to netif_poll_enable()David S. Miller2006-12-311-0/+1
| | | | | | | | | | | | | | | | | | | | When a driver writer calls this, they generally expect that all previous stores and modifications they've made will be visible before netif_poll_enable() executes, so ensure this. Noticed by Ben H. Signed-off-by: David S. Miller <davem@davemloft.net>
* | [PATCH] cpuset procfs warning fixAndrew Morton2006-12-301-1/+1
| | | | | | | | | | | | | | | | | | fs/proc/base.c:1869: warning: initialization discards qualifiers from pointer target type fs/proc/base.c:2150: warning: initialization discards qualifiers from pointer target type Cc: Paul Jackson <pj@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] SPI: define null tx_buf to mean "shift out zeroes"David Brownell2006-12-301-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some issues were recently turned up with the current specification of what it means for spi_transfer.tx_buf to be null, as part of transfers which are (from the SPI protocol driver perspective) pure reads. Specifically, that it seems better to change the TX behaviour there from "undefined" to "will shift zeroes". This lets protocol drivers (like the ads7846 driver) depend on that behavior. It's what most controller drivers in the tree are already doing (with one exception and one case of driver wanting-to-oops), it's what Microwire hardware will necessarily be doing, and it removes an issue whereby certain security audits would need to define such a value anyway as part of removing covert channels. This patch changes the specification to require shifting zeroes, and updates all currently merged SPI controller drivers to do so. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | Merge branch 'release' of ↵Linus Torvalds2006-12-221-1/+1
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (68 commits) ACPI: replace kmalloc+memset with kzalloc ACPI: Add support for acpi_load_table/acpi_unload_table_id fbdev: update after backlight argument change ACPI: video: Add dev argument for backlight_device_register ACPI: Implement acpi_video_get_next_level() ACPI: Kconfig - depend on PM rather than selecting it ACPI: fix NULL check in drivers/acpi/osl.c ACPI: make drivers/acpi/ec.c:ec_ecdt static ACPI: prevent processor module from loading on failures ACPI: fix single linked list manipulation ACPI: ibm_acpi: allow clean removal ACPI: fix git automerge failure ACPI: ibm_acpi: respond to workqueue update ACPI: dock: add uevent to indicate change in device status ACPI: ec: Lindent once again ACPI: ec: Change #define to enums there possible. ACPI: ec: Style changes. ACPI: ec: Acquire Global Lock under EC mutex. ACPI: ec: Drop udelay() from poll mode. Loop by reading status field instead. ACPI: ec: Rename gpe_bit to gpe ...
| * \ merge linus into test branchLen Brown2006-12-204-74/+42
| |\ \
| * \ \ Pull platform-drivers into test branchLen Brown2006-12-201-1/+1
| |\ \ \
| | * | | ACPI: video: Add dev argument for backlight_device_registerYu Luming2006-12-201-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch set adds generic abstract layer support for acpi video driver to have generic user interface to control backlight and output switch control by leveraging the existing backlight sysfs class driver, and by adding a new video output sysfs class driver. This patch: Add dev argument for backlight_device_register to link the class device to real device object. The platform specific driver should find a way to get the real device object for their video device. [akpm@osdl.org: build fix] [akpm@osdl.org: fix msi-laptop.c] Signed-off-by: Luming Yu <Luming.yu@intel.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Len Brown <len.brown@intel.com>
* | | | | [SCTP]: Fix typo adaption -> adaptation as per the latest API draft.Ivan Skytte Jorgensen2006-12-221-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Ivan Skytte Jorgensen <isj-sctp@i1.dk> Signed-off-by: Sridhar Samudrala <sri@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | | [SCTP]: Don't export include/linux/sctp.h to userspace.Sridhar Samudrala2006-12-221-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This file contains protocol definitions and there are no SCTP apps that use this file. Signed-off-by: Sridhar Samudrala <sri@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | | [PATCH] mips: if_fddi.h: Add a missing inclusionMaciej W. Rozycki2006-12-221-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a change to include <linux/netdevice.h> in <linux/if_fddi.h> which is needed for "struct fddi_statistics". Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Jeff Garzik <jeff@garzik.org> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | | [PATCH] fdtable: Provide free_fdtable() wrapperVadim Lobanov2006-12-221-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Christoph Hellwig has expressed concerns that the recent fdtable changes expose the details of the RCU methodology used to release no-longer-used fdtable structures to the rest of the kernel. The trivial patch below addresses these concerns by introducing the appropriate free_fdtable() calls, which simply wrap the release RCU usage. Since free_fdtable() is a one-liner, it makes sense to promote it to an inline helper. Signed-off-by: Vadim Lobanov <vlobanov@speakeasy.net> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | | [PATCH] mm: more rmap debuggingNick Piggin2006-12-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add more debugging in the rmap code in an attempt to locate to source of the occasional "mapcount went negative" assertions. Cc: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | | [PATCH] lock debugging: fix DEBUG_LOCKS_WARN_ON() & debug_locks_silentIngo Molnar2006-12-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Matthew Wilcox noticed that the debug_locks_silent use should be inverted in DEBUG_LOCKS_WARN_ON(). This bug was causing spurious stacktraces and incorrect failures in the locking self-test on the parisc kernel. Bug-found-by: Matthew Wilcox <matthew@wil.cx> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | | [PATCH] fix vm_events_fold_cpu() build breakageMagnus Damm2006-12-221-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | fix vm_events_fold_cpu() build breakage 2.6.20-rc1 does not build properly if CONFIG_VM_EVENT_COUNTERS is set and CONFIG_HOTPLUG is unset: CC init/version.o LD init/built-in.o LD .tmp_vmlinux1 mm/built-in.o: In function `page_alloc_cpu_notify': page_alloc.c:(.text+0x56eb): undefined reference to `vm_events_fold_cpu' make: *** [.tmp_vmlinux1] Error 1 [akpm@osdl.org: cleanup] Signed-off-by: Magnus Damm <magnus@valinux.co.jp> Cc: Christoph Lameter <clameter@engr.sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | | [PATCH] CONFIG_VM_EVENT_COUNTER comment decrustifyPaul Jackson2006-12-221-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The VM event counters, enabled by CONFIG_VM_EVENT_COUNTERS, which provides VM event counters in /proc/vmstat, has become more essential to non-EMBEDDED kernel configurations than they were in the past. Comments in the code and the Kconfig configuration explanation were stale, downplaying their role excessively. Refresh those comments to correctly reflect the current role of VM event counters. Signed-off-by: Paul Jackson <pj@sgi.com> Acked-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | | [PATCH] KVM: API versioningAvi Kivity2006-12-221-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add compile-time and run-time API versioning. Signed-off-by: Avi Kivity <avi@qumranet.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | | VM: Remove "clear_page_dirty()" and "test_clear_page_dirty()" functionsLinus Torvalds2006-12-211-6/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | They were horribly easy to mis-use because of their tempting naming, and they also did way more than any users of them generally wanted them to do. A dirty page can become clean under two circumstances: (a) when we write it out. We have "clear_page_dirty_for_io()" for this, and that function remains unchanged. In the "for IO" case it is not sufficient to just clear the dirty bit, you also have to mark the page as being under writeback etc. (b) when we actually remove a page due to it becoming inaccessible to users, notably because it was truncate()'d away or the file (or metadata) no longer exists, and we thus want to cancel any outstanding dirty state. For the (b) case, we now introduce "cancel_dirty_page()", which only touches the page state itself, and verifies that the page is not mapped (since cancelling writes on a mapped page would be actively wrong as it is still accessible to users). Some filesystems need to be fixed up for this: CIFS, FUSE, JFS, ReiserFS, XFS all use the old confusing functions, and will be fixed separately in subsequent commits (with some of them just removing the offending logic, and others using clear_page_dirty_for_io()). This was confirmed by Martin Michlmayr to fix the apt database corruption on ARM. Cc: Martin Michlmayr <tbm@cyrius.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Hugh Dickins <hugh@veritas.com> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Cc: Arjan van de Ven <arjan@infradead.org> Cc: Andrei Popa <andrei.popa@i-neo.ro> Cc: Andrew Morton <akpm@osdl.org> Cc: Dave Kleikamp <shaggy@linux.vnet.ibm.com> Cc: Gordon Farquharson <gordonfarquharson@gmail.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | | Merge branch 'for-linus' of git://brick.kernel.dk/data/git/linux-2.6-blockLinus Torvalds2006-12-212-8/+9
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of git://brick.kernel.dk/data/git/linux-2.6-block: [PATCH] block: document io scheduler allow_merge_fn hook [PATCH] cfq-iosched: don't allow sync merges across queues [PATCH] Fixup blk_rq_unmap_user() API [PATCH] __blk_rq_unmap_user() fails to return error [PATCH] __blk_rq_map_user() doesn't need to grab the queue_lock [PATCH] Remove queue merging hooks [PATCH] ->nr_sectors and ->hard_nr_sectors are not used for BLOCK_PC requests [PATCH] cciss: fix XFER_READ/XFER_WRITE in do_cciss_request [PATCH] cciss: set default raid level when reading geometry fails
| * | | | | [PATCH] cfq-iosched: don't allow sync merges across queuesJens Axboe2006-12-201-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently we allow any merge, even if the io originates from different processes. This can cause really bad starvation and unfairness, if those ios happen to be synchronous (reads or direct writes). So add a allow_merge hook to the io scheduler ops, so an io scheduler can help decide whether a bio/process combination may be merged with an existing request. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * | | | | [PATCH] Fixup blk_rq_unmap_user() APIJens Axboe2006-12-191-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The blk_rq_unmap_user() API is not very nice. It expects the caller to know that rq->bio has to be reset to the original bio, and it will silently do nothing if that is not done. Instead make it explicit that we need to pass in the first bio, by expecting a bio argument. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * | | | | [PATCH] Remove queue merging hooksJens Axboe2006-12-191-7/+5
| | |_|_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We have full flexibility of merging parameters now, so we can remove the hooks that define back/front/request merge strategies. Nobody is using them anymore. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* | | | | Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6Linus Torvalds2006-12-212-5/+8
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6: Driver core: proper prototype for drivers/base/init.c:driver_init() kobject: kobject_uevent() returns manageable value kref refcnt and false positives
| * | | | | Driver core: proper prototype for drivers/base/init.c:driver_init()Adrian Bunk2006-12-201-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a prototype for driver_init() in include/linux/device.h. Also remove a static function of the same name in drivers/acpi/ibm_acpi.c to ibm_acpi_driver_init() to fix the namespace collision. Signed-off-by: Adrian Bunk <bunk@stusta.de> Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | | kobject: kobject_uevent() returns manageable valueAneesh Kumar K.V2006-12-201-5/+6
| | |_|_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since kobject_uevent() function does not return an integer value to indicate if its operation was completed with success or not, it is worth changing it in order to report a proper status (success or error) instead of returning void. [randy.dunlap@oracle.com: Fix inline kobject functions] Cc: Mauricio Lin <mauriciolin@gmail.com> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@gmail.com> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | | | PCI legacy resource fixRalf Baechle2006-12-201-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since commit 368c73d4f689dae0807d0a2aa74c61fd2b9b075f the kernel will try to update the non-writeable BAR registers 0..3 of PIIX4 IDE adapters if pci_assign_unassigned_resources() is used to do full resource assignment of the bus. This fails because in the PIIX4 these BAR registers have implicitly assumed values and read back as zero; it used to work because the kernel used to just write zero to that register the read back value did match what was written. The fix is a new resource flag IORESOURCE_PCI_FIXED used to mark a resource as non-movable. This will also be useful to keep other import system resources from being moved around - for example system consoles on PCI busses. [akpm@osdl.org: cleanup] Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | | | PCI: don't export device IDs to userspaceAdrian Bunk2006-12-202-5/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I don't see any good reason for exporting device IDs to userspace. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | | | PCI: Fix multiple problems with VIA hardwareAlan Cox2006-12-201-0/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch is designed to fix: - Disk eating corruptor on KT7 after resume from RAM - VIA IRQ handling - VIA fixups for bus lockups after resume from RAM The core of this is to add a table of resume fixups run at resume time. We need to do this for a variety of boards and features, but particularly we need to do this to get various critical VIA fixups done on resume. The second part of the problem is to handle VIA IRQ number rules which are a bit odd and need special handling for PIC interrupts. Various patches broke various boxes and while this one may not be perfect (hopefully it is) it ensures the workaround is applied to the right devices only. From: Jean Delvare <khali@linux-fr.org> Now that PCI quirks are replayed on software resume, we can safely re-enable the Asus SMBus unhiding quirk even when software suspend support is enabled. [akpm@osdl.org: fix const warning] Signed-off-by: Alan Cox <alan@redhat.com> Cc: Jean Delvare <khali@linux-fr.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | | | PCI: Add #defines for Hypertransport MSI fieldsMichael Ellerman2006-12-201-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a few #defines for grabbing and working with the address fields in a HT_CAPTYPE_MSI_MAPPING capability. All from the HT spec v3.00. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | | | PCI: Add pci_find_ht_capability() for finding Hypertransport capabilitiesMichael Ellerman2006-12-202-1/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are already several places in the kernel that want to search a PCI device for a given Hypertransport capability. Although this is possible using pci_find_capability() etc., it makes sense to encapsulate that logic in a helper - pci_find_ht_capability(). To cater for searching exhaustively for a capability, we also provide pci_find_next_ht_capability(). We also need to cater for the fact that the HT capability fields may be either 3 or 5 bits wide. pci_find_ht_capability() deals with this for you, but callers using the #defines directly must handle that themselves. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | | | pci: Introduce pci_find_presentAlan Cox2006-12-201-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This works like pci_dev_present but instead of returning boolean returns the matching pci_device_id entry. This makes it much more useful. Code bloat is basically nil as the old boolean function is rewritten in terms of the new one. This will be used by the updated VIA PCI quirks for one Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | | | pci: add class codes for Wireless RF controllersInaky Perez-Gonzalez2006-12-201-0/+4
|/ / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | pci: add class codes for Wireless RF controllers Add PCI codes to include/linux/pci_ids.h for RF controllers; first batch of these devices seem to be the Ultra-Wide-Band and Wireless USB controllers (WHCI spec). Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | | Merge branch 'for-linus' of ↵Linus Torvalds2006-12-191-0/+15
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: [PATCH] Generic HID layer - update MAINTAINERS input/hid: Supporting more keys from the HUT Consumer Page [PATCH] Generic HID layer - build: USB_HID should select HID
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