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Commits on Oct 9, 2007
  1. Linux 2.6.23

    Linus Torvalds committed Oct 9, 2007
  2. Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-…

    …linus
    
    * 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
      [MIPS] Au1000: set the PCI controller IO base
      [MIPS] Alchemy: Fix USB initialization.
      [MIPS] IP32: Fix fatal typo in address computation.
    Linus Torvalds committed Oct 9, 2007
  3. NLM: Fix a memory leak in nlmsvc_testlock

    The recent fix for a circular lock dependency unfortunately introduced a
    potential memory leak in the event where the call to nlmsvc_lookup_host
    fails for some reason.
    
    Thanks to Roel Kluin for spotting this.
    
    Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
    Trond Myklebust committed with Linus Torvalds Oct 9, 2007
  4. sata_mv: correct S/G table limits

    The recent mv_fill_sg() rewrite, to fix a data corruption problem
    related to IOMMU virtual merging, forgot to account for the
    potentially-increased size of the scatter/gather table after its run.
    
    Additionally, the DMA boundary is reduced from 0xffffffff to 0xffff
    to more closely match the needs of mv_fill_sg().
    
    Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
    Jeff Garzik committed with Linus Torvalds Oct 9, 2007
  5. [MIPS] Au1000: set the PCI controller IO base

    The PCI controller IO base was not set in the au1000 pci code.
    
    Signed-off-by: Felix Fietkau <nbd@openwrt.org>
    Signed-off-by: John Crispin <blogic@openwrt.org>
    Signed-off-by: Florian Fainelli <florian.fainelli@telecomint.eu>
    Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
    Florian Fainelli committed with ralfbaechle Sep 25, 2007
  6. [MIPS] Alchemy: Fix USB initialization.

    This patch fixes a wrong ifdef in the board setup code, leading to the GPIO
    pin not being pulled high, and thus the USB switch not being powered at all.
    
    This finishes the rename of CONFIG_USB_OHCI to CONFIG_USB_OHCI_HCD, which
    started in 2005 (before 2.6.12-rc2), then probably because things were
    working anyway for most people got forgotten.
    
    [Ralf: Paolo's original patch didn't fix the module case, Florian's patch
    only fixed MTX1 etc. so this is a combined patch plus some cleanups.]
    
    Cc: Giuseppe Patanè <giuseppe.patane@tvblob.com>
    Cc: Ralf Baechle <ralf@linux-mips.org>
    Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Felix Fietkau <nbd@openwrt.org>
    Signed-off-by: John Crispin <blogic@openwrt.org>
    Signed-off-by: Florian Fainelli <florian.fainelli@telecomint.eu>
    Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
    Florian Fainelli committed with ralfbaechle Sep 25, 2007
  7. [MIPS] IP32: Fix fatal typo in address computation.

    Signed-off-by: Giuseppe Sacco <eppesuig@debian.org>
    Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
    eppesuig committed with ralfbaechle Oct 6, 2007
Commits on Oct 8, 2007
  1. Correct Makefile rule for generating custom keymap

    When building a custom keymap, after setting GENERATE_KEYMAP := 1 in
    drivers/char/Makefile, the kernel build fails like this:
    
        CC      drivers/char/vt.o
      make[2]: *** No rule to make target `drivers/char/%.map', needed by `drivers/char/defkeymap.c'.  Stop.
      make[1]: *** [drivers/char] Error 2
      make: *** [drivers] Error 2
    
    This was caused by commit af8b128, which
    deleted a necessary colon from the Makefile rule that generates the keymap,
    since that rule contains both a target and a target-pattern.  The following
    patch puts the colon back:
    
    Signed-off-by: Maarten Bressers <mbres@gentoo.org>
    Cc: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
    Cc: Ralf Baechle <ralf@linux-mips.org>
    Cc: Sam Ravnborg <sam@ravnborg.org>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
    Maarten Bressers committed with Linus Torvalds Oct 8, 2007
  2. ISDN: Fix data access out of array bounds

    Fix against access random data bytes outside the dev->chanmap array.
    Thanks to Oliver Neukum for pointing me to this issue.
    
    Signed-off-by: Karsten Keil <kkeil@suse.de>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
    Karsten Keil committed with Linus Torvalds Oct 8, 2007
  3. Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/…

    …davem/net-2.6
    
    * 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
      [IPv6]: Fix ICMPv6 redirect handling with target multicast address
      [PKT_SCHED] cls_u32: error code isn't been propogated properly
      [ROSE]: Fix rose.ko oops on unload
      [TCP]: Fix fastpath_cnt_hint when GSO skb is partially ACKed
    Linus Torvalds committed Oct 8, 2007
  4. AIO: fix cleanup in io_submit_one(...)

    When IOCB_FLAG_RESFD flag is set and iocb->aio_resfd is incorrect,
    statement 'goto out_put_req' is executed. At label 'out_put_req',
    aio_put_req(..) is called, which requires 'req->ki_filp' set.
    
    Signed-off-by: Yan Zheng<yanzheng@21cn.com>
    Cc: Zach Brown <zach.brown@oracle.com>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
    ukernel committed with Linus Torvalds Oct 8, 2007
  5. fix page release issue in filemap_fault

    find_lock_page increases page's usage count, we should decrease it
    before return VM_FAULT_SIGBUS
    
    Signed-off-by: Yan Zheng<yanzheng@21cn.com>
    Cc: Nick Piggin <nickpiggin@yahoo.com.au>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
    ukernel committed with Linus Torvalds Oct 8, 2007
  6. fix VM_CAN_NONLINEAR check in sys_remap_file_pages

    The test for VM_CAN_NONLINEAR always fails
    
    Signed-off-by: Yan Zheng<yanzheng@21cn.com>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
    ukernel committed with Linus Torvalds Oct 8, 2007
  7. mm: set_page_dirty_balance() vs ->page_mkwrite()

    All the current page_mkwrite() implementations also set the page dirty. Which
    results in the set_page_dirty_balance() call to _not_ call balance, because the
    page is already found dirty.
    
    This allows us to dirty a _lot_ of pages without ever hitting
    balance_dirty_pages().  Not good (tm).
    
    Force a balance call if ->page_mkwrite() was successful.
    
    Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
    Peter Zijlstra committed with Linus Torvalds Oct 8, 2007
  8. [IPv6]: Fix ICMPv6 redirect handling with target multicast address

    When the ICMPv6 Target address is multicast, Linux processes the 
    redirect instead of dropping it.  The problem is in this code in 
    ndisc_redirect_rcv():
    
             if (ipv6_addr_equal(dest, target)) {
                     on_link = 1;
             } else if (!(ipv6_addr_type(target) & IPV6_ADDR_LINKLOCAL)) {
                     ND_PRINTK2(KERN_WARNING
                                "ICMPv6 Redirect: target address is not 
    link-local.\n");
                     return;
             }
    
    This second check will succeed if the Target address is, for example, 
    FF02::1 because it has link-local scope.  Instead, it should be checking 
    if it's a unicast link-local address, as stated in RFC 2461/4861 Section 
    8.1:
    
           - The ICMP Target Address is either a link-local address (when
             redirected to a router) or the same as the ICMP Destination
             Address (when redirected to the on-link destination).
    
    I know this doesn't explicitly say unicast link-local address, but it's 
    implied.
    
    This bug is preventing Linux kernels from achieving IPv6 Logo Phase II 
    certification because of a recent error that was found in the TAHI test 
    suite - Neighbor Disovery suite test 206 (v6LC.2.3.6_G) had the 
    multicast address in the Destination field instead of Target field, so 
    we were passing the test.  This won't be the case anymore.
    
    The patch below fixes this problem, and also fixes ndisc_send_redirect() 
    to not send an invalid redirect with a multicast address in the Target 
    field.  I re-ran the TAHI Neighbor Discovery section to make sure Linux 
    passes all 245 tests now.
    
    Signed-off-by: Brian Haley <brian.haley@hp.com>
    Acked-by: David L Stevens <dlstevens@us.ibm.com>
    Signed-off-by: David S. Miller <davem@davemloft.net>
    Brian Haley committed with davem330 Oct 8, 2007
  9. [PKT_SCHED] cls_u32: error code isn't been propogated properly

        
    Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
    Signed-off-by: David S. Miller <davem@davemloft.net>
    Stephen Hemminger committed with davem330 Oct 8, 2007
  10. [ROSE]: Fix rose.ko oops on unload

    Commit a3d3840 aka
    "[AX.25]: Fix unchecked rose_add_loopback_neigh uses"
    transformed rose_loopback_neigh var into statically allocated one.
    However, on unload it will be kfree's which can't work.
    
    Steps to reproduce:
    
    	modprobe rose
    	rmmod rose
    
    BUG: unable to handle kernel NULL pointer dereference at virtual address 00000008
     printing eip:
    c014c664
    *pde = 00000000
    Oops: 0000 [#1]
    PREEMPT DEBUG_PAGEALLOC
    Modules linked in: rose ax25 fan ufs loop usbhid rtc snd_intel8x0 snd_ac97_codec ehci_hcd ac97_bus uhci_hcd thermal usbcore button processor evdev sr_mod cdrom
    CPU:    0
    EIP:    0060:[<c014c664>]    Not tainted VLI
    EFLAGS: 00210086   (2.6.23-rc9 #3)
    EIP is at kfree+0x48/0xa1
    eax: 00000556   ebx: c1734aa0   ecx: f6a5e000   edx: f7082000
    esi: 00000000   edi: f9a55d20   ebp: 00200287   esp: f6a5ef28
    ds: 007b   es: 007b   fs: 0000  gs: 0033  ss: 0068
    Process rmmod (pid: 1823, ti=f6a5e000 task=f7082000 task.ti=f6a5e000)
    Stack: f9a55d20 f9a5200c 00000000 00000000 00000000 f6a5e000 f9a5200c f9a55a00 
           00000000 bf818cf0 f9a51f3f f9a55a00 00000000 c0132c60 65736f72 00000000 
           f69f9630 f69f9528 c014244a f6a4e900 00200246 f7082000 c01025e6 00000000 
    Call Trace:
     [<f9a5200c>] rose_rt_free+0x1d/0x49 [rose]
     [<f9a5200c>] rose_rt_free+0x1d/0x49 [rose]
     [<f9a51f3f>] rose_exit+0x4c/0xd5 [rose]
     [<c0132c60>] sys_delete_module+0x15e/0x186
     [<c014244a>] remove_vma+0x40/0x45
     [<c01025e6>] sysenter_past_esp+0x8f/0x99
     [<c012bacf>] trace_hardirqs_on+0x118/0x13b
     [<c01025b6>] sysenter_past_esp+0x5f/0x99
     =======================
    Code: 05 03 1d 80 db 5b c0 8b 03 25 00 40 02 00 3d 00 40 02 00 75 03 8b 5b 0c 8b 73 10 8b 44 24 18 89 44 24 04 9c 5d fa e8 77 df fd ff <8b> 56 08 89 f8 e8 84 f4 fd ff e8 bd 32 06 00 3b 5c 86 60 75 0f 
    EIP: [<c014c664>] kfree+0x48/0xa1 SS:ESP 0068:f6a5ef28
    
    Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
    Signed-off-by: David S. Miller <davem@davemloft.net>
    Alexey Dobriyan committed with davem330 Oct 8, 2007
  11. [TCP]: Fix fastpath_cnt_hint when GSO skb is partially ACKed

    When only GSO skb was partially ACKed, no hints are reset,
    therefore fastpath_cnt_hint must be tweaked too or else it can
    corrupt fackets_out. The corruption to occur, one must have
    non-trivial ACK/SACK sequence, so this bug is not very often
    that harmful. There's a fackets_out state reset in TCP because
    fackets_out is known to be inaccurate and that fixes the issue
    eventually anyway.
    
    In case there was also at least one skb that got fully ACKed,
    the fastpath_skb_hint is set to NULL which causes a recount for
    fastpath_cnt_hint (the old value won't be accessed anymore),
    thus it can safely be decremented without additional checking.
    
    Reported by Cedric Le Goater <clg@fr.ibm.com>
    
    Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
    Signed-off-by: David S. Miller <davem@davemloft.net>
    Ilpo Järvinen committed with davem330 Oct 8, 2007
Commits on Oct 7, 2007
  1. Driver core: fix SYSF_DEPRECATED breakage for nested classdevs

    We should only reparent to a class former class devices that
    form the base of class hierarchy. Nested devices should still
    grow from their real parents.
    
    Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
    Tested-by: Andrey Borzenkov <arvidjaar@mail.ru>
    Tested-by: Anssi Hannula <anssi.hannula@gmail.com>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
    dtor committed with Linus Torvalds Oct 7, 2007
  2. Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel…

    …/git/ieee1394/linux1394-2.6
    
    * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
      firewire: point to migration document
    Linus Torvalds committed Oct 7, 2007
  3. Add manufacturer and card id of teltonica pcmcia modems

    Add the manufacturer and card id of teltonica pcmcia modems to serial_cs.c
    
    Signed-off-by: Attila Kinali <attila@kinali.ch>
    Acked-by: Alan Cox <alan@redhat.com>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
    attilakinali committed with Linus Torvalds Oct 7, 2007
  4. sysrq docs: document sequence that actually works

    Document sequence of keypresses that actually works. Yes, this changed
    year-or-so ago.
    
    Signed-off-by: Pavel Machek <pavel@suse.cz>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
    pavelmachek committed with Linus Torvalds Oct 7, 2007
  5. fix bogus reporting of signals by audit

    Async signals should not be reported as sent by current in audit log.  As
    it is, we call audit_signal_info() too early in check_kill_permission().
    Note that check_kill_permission() has that test already - it needs to know
    if it should apply current-based permission checks.  So the solution is to
    move the call of audit_signal_info() between those.
    
    Bogosity in question is easily reproduced - add a rule watching for e.g.
    kill(2) from specific process (so that audit_signal_info() would not
    short-circuit to nothing), say load_policy, watch the bogus OBJ_PID entry
    in audit logs claiming that write(2) on selinuxfs file issued by
    load_policy(8) had somehow managed to send a signal to syslogd...
    
    Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
    Acked-by: Steve Grubb <sgrubb@redhat.com>
    Acked-by: Eric Paris <eparis@redhat.com>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
    Al Viro committed with Linus Torvalds Oct 7, 2007
  6. Move kasprintf.o to obj-y

    Modulat lguest started giving linking errors
    
    MODPOST 1 modules
    ERROR: "kasprintf" [drivers/lguest/lg.ko] undefined!
    
    Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru>
    Cc: Rusty Russell <rusty@rustcorp.com.au>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
    Alexey Dobriyan committed with Linus Torvalds Oct 7, 2007
  7. lockstat: documentation

    Provide some documentation for CONFIG_LOCK_STAT.
    
    Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
    Acked-by: Ingo Molnar <mingo@elte.hu>
    Cc: "Randy.Dunlap" <rdunlap@xenotime.net>
    Cc: Rob Landley <rob@landley.net>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
    Peter Zijlstra committed with Linus Torvalds Oct 7, 2007
  8. Longhaul: add auto enabled "revid_errata" option

    VIA C3 Ezra-T has RevisionID equal to 1, but it needs RevisionKey to be 0
    or CPU will ignore new frequency and will continue to work at old
    frequency.  New "revid_errata" option will force RevisionKey to be set to
    0, whatever RevisionID is.
    
    Additionaly "Longhaul" will not silently ignore unsuccessful transition.
    It will try to check if "revid_errata" or "disable_acpi_c3" options need to
    be enabled for this processor/system.
    
    Same for Longhaul ver.  2 support.  It will be disabled if none of above
    options will work.
    
     Best case scenario (with patch apllied and v2 enabled):
     longhaul: VIA C3 'Ezra' [C5C] CPU detected.  Longhaul v2 supported.
     longhaul: Using northbridge support.
     longhaul: VRM 8.5
     longhaul: Max VID=1.350  Min VID=1.050, 13 possible voltage scales
     longhaul: f: 300000 kHz, index: 0, vid: 1050 mV
     [...]
     longhaul: Voltage scaling enabled.
     Worst case scenario:
     longhaul: VIA C3 'Ezra-T' [C5M] CPU detected.  Powersaver supported.
     longhaul: Using northbridge support.
     longhaul: Using ACPI support.
     longhaul: VRM 8.5
     longhaul: Claims to support voltage scaling but min & max are both 1.250. Voltage scaling disabled
     longhaul: Failed to set requested frequency!
     longhaul: Enabling "Ignore Revision ID" option.
     longhaul: Failed to set requested frequency!
     longhaul: Disabling ACPI C3 support.
     longhaul: Disabling "Ignore Revision ID" option.
     longhaul: Failed to set requested frequency!
     longhaul: Enabling "Ignore Revision ID" option.
    
    [akpm@linux-foundation.org: coding-style cleanups]
    Signed-off-by: Rafal Bilski <rafalbilski@interia.pl>
    Signed-off-by: Dave Jones <davej@redhat.com>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
    rafalbilski committed with Linus Torvalds Oct 7, 2007
  9. Fix timer_stats printout of events/sec

    When using /proc/timer_stats on ppc64 I noticed the events/sec field wasnt
    accurate.  Sometimes the integer part was incorrect due to rounding (we
    werent taking the fractional seconds into consideration).
    
    The fraction part is also wrong, we need to pad the printf statement and
    take the bottom three digits of 1000 times the value.
    
    Signed-off-by: Anton Blanchard <anton@samba.org>
    Acked-by: Ingo Molnar <mingo@elte.hu>
    Cc: <stable@kernel.org>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
    antonblanchard committed with Linus Torvalds Oct 7, 2007
  10. Don't do load-average calculations at even 5-second intervals

    It turns out that there are a few other five-second timers in the
    kernel, and if the timers get in sync, the load-average can get
    artificially inflated by events that just happen to coincide.
    
    So just offset the load average calculation it by a timer tick.
    
    Noticed by Anders Boström, for whom the coincidence started triggering
    on one of his machines with the JBD jiffies rounding code (JBD is one of
    the subsystems that also end up using a 5-second timer by default).
    
    Tested-by: Anders Boström <anders@bostrom.dyndns.org>
    Cc: Chuck Ebbert <cebbert@redhat.com>
    Cc: Arjan van de Ven <arjan@linux.intel.com>
    Cc: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
    Linus Torvalds committed Oct 7, 2007
  11. VT_WAITACTIVE: Avoid returning EINTR when not necessary

    We should generally prefer to return ERESTARTNOHAND rather than EINTR,
    so that processes with unhandled signals that get ignored don't return
    EINTR.
    
    This can help with X startup issues:
    
        Fatal server error:
        xf86OpenConsole: VT_WAITACTIVE failed: Interrupted system call
    
    although the real fix is having the X server always retry EINTR
    regardless (since EINTR does happen for signals that have handlers
    installed). Keithp has a patch for that.
    
    Regardless, ERESTARTNOHAND is the correct thing to use.
    
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
    Linus Torvalds committed Oct 7, 2007
  12. firewire: point to migration document

    Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
    Stefan Richter committed Oct 7, 2007
Commits on Oct 6, 2007
  1. Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-…

    …linus
    
    * 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
      [MIPS] IP32: Enable PCI bridges
    Linus Torvalds committed Oct 6, 2007
  2. Revert "intel_agp: fix stolen mem range on G33"

    This reverts commit f443675, which
    breaks horribly if you aren't running an unreleased xf86-video-intel
    driver out of git.
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
    Cc: Dave Airlie <airlied@linux.ie>
    Cc: Zhenyu Wang <zhenyu.z.wang@intel.com>
    Acked-by: Keith Packard <keithp@keithp.com>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
    jkkm committed with Linus Torvalds Oct 6, 2007
  3. Fix non-terminated PCI match table in PowerMac IDE

    The PCI device table in the powermac IDE driver isn't properly
    terminated.  Depending on how your kernel is linked and other random
    factors, you can end up with this driver matched against any other PCI
    device in your system, possibly crashing at boot.
    
    Thanks to Heikki for tracking this down with me, the bug have been there
    for some time, though it rarely hurts due to luck.  In this case, the
    switch from .22 to .23-rc9 is causing it to show up due to differences
    in the resulting layout of .data I suppose.
    
    Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
    Cc: Paul Mackerras <pmac@au1.ibm.com>
    Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
    Cc: Heikki Lindholm <holindho@cs.helsinki.fi>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
    ozbenh committed with Linus Torvalds Oct 6, 2007
  4. xen: disable split pte locks for now

    When pinning and unpinning pagetables, we must protect them against
    being used by other CPUs, lest they see the pagetable in an
    intermediate read-only-but-not-pinned state.
    
    When using split pte locks, doing this properly would require taking
    all the pte locks for the pagetable while pinning, but this may overflow
    the PREEMPT_BITS part of the preempt counter if the process has mapped
    more than about 512M of memory.
    
    However, failing to take the pte locks causes write-protect faults when
    the pageout code is trying to clear the Access bit on a pte which is part
    of a freshy created and still being pinned process after fork.
    
    This is a short-term fix until the problem is solved properly.
    
    Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
    Acked-by: Rik van Riel <riel@redhat.com>
    Acked-by: Hugh Dickins <hugh@veritas.com>
    Cc: David Rientjes <rientjes@google.com>
    Cc: Andrew Morton <akpm@linux-foundation.org>
    Cc: Andi Kleen <ak@suse.de>
    Cc: Keir Fraser <keir@xensource.com>
    Cc: Jan Beulich <jbeulich@novell.com>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
    jsgf committed with Linus Torvalds Oct 6, 2007
Commits on Oct 5, 2007
  1. Merge master.kernel.org:/home/rmk/linux-2.6-arm

    * master.kernel.org:/home/rmk/linux-2.6-arm:
      [ARM] 4598/2: OSIRIS: Ensure we do not get nRSTOUT during suspend
      [ARM] 4597/2: OSIRIS: ensure CPLD0 is preserved after suspend
    Linus Torvalds committed Oct 5, 2007