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tag: v2.6.25
Commits on Apr 17, 2008
  1. @torvalds

    Linux 2.6.25

    torvalds authored
  2. @torvalds

    Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6

    torvalds authored
    * git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6:
      it821x: do not describe noraid parameter with its value
      Pb1200/DBAu1200: fix bad IDE resource size
      Au1200: IDE driver build fix
      Au1200: kill IDE driver function prototypes
      avr32 mustn't select HAVE_IDE
Commits on Apr 16, 2008
  1. @pebolle @bzolnier

    it821x: do not describe noraid parameter with its value

    pebolle authored bzolnier committed
    Describe noraid parameter with its name (and not its value).
    
    Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
    Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
  2. @bzolnier

    Pb1200/DBAu1200: fix bad IDE resource size

    Sergei Shtylyov authored bzolnier committed
    The header files for the Pb1200/DBAu1200 boards have wrong definition for the
    IDE interface's decoded range length -- it should be 512 bytes according to
    what the IDE driver does.  In addition, the IDE platform device claims 1 byte
    too many for its memory resource -- fix the platform code and the IDE driver
    in accordance.
    
    Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
    Cc: Ralf Baechle <ralf@linux-mips.org>
    Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
  3. @bzolnier

    Au1200: IDE driver build fix

    Sergei Shtylyov authored bzolnier committed
    The driver fails to compile with CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA enabled:
    
    drivers/ide/mips/au1xxx-ide.c: In function `auide_build_dmatable':
    drivers/ide/mips/au1xxx-ide.c:256: error: implicit declaration of function
    `sg_virt'
    drivers/ide/mips/au1xxx-ide.c:275: error: implicit declaration of function
    `sg_next'
    drivers/ide/mips/au1xxx-ide.c:275: warning: assignment makes pointer from
    integer without a cast
    
    Fix this by including <linux/scatterlist.h>. While at it, remove the #include's
    without which the driver happily builds.
    
    Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
    Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
  4. @bzolnier

    Au1200: kill IDE driver function prototypes

    Sergei Shtylyov authored bzolnier committed
    Fix these warnings emitted when compiling drivers/ide/mips/au1xxx-ide.c:
    
    include/asm/mach-au1x00/au1xxx_ide.h:137: warning: 'auide_tune_drive' declared 
    `static' but never defined
    include/asm/mach-au1x00/au1xxx_ide.h:138: warning: 'auide_tune_chipset' declared
     `static' but never defined
    
    by wiping out the whole "function prototyping" section from the header file
    <asm-mips/mach-au1x00/au1xxx_ide.h> as it mostly declared functions that are
    already dead in the IDE driver; move the only useful prototype into the driver.
    
    Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
    Cc: Ralf Baechle <ralf@linux-mips.org>
    Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
  5. @bzolnier

    avr32 mustn't select HAVE_IDE

    Adrian Bunk authored bzolnier committed
    There's a libata based PATA driver for avr32, but no support for 
    drivers/ide/ on avr32.
    
    This patch fixes the following compile error:
    
    <--  snip  -->
    
    ...
      CC [M]  drivers/ide/ide-cd.o
    In file included from /home/bunk/linux/kernel-2.6/git/linux-2.6/drivers/ide/ide-cd.c:37:
    /home/bunk/linux/kernel-2.6/git/linux-2.6/include/linux/ide.h:209:21: error: asm/ide.h: No such file or directory
    make[3]: *** [drivers/ide/ide-cd.o] Error 1
    
    <--  snip  -->
    
    Signed-off-by: Adrian Bunk <bunk@kernel.org>
    Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
    Acked-by: Sam Ravnborg <sam@ravnborg.org>
    Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
  6. @torvalds

    Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block

    torvalds authored
    * 'for-linus' of git://git.kernel.dk/linux-2.6-block:
      block: update git url for blktrace
      io context: increment task attachment count in ioc_task_link()
  7. @torvalds

    Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6

    torvalds authored
    * git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6:
      USB: remove broken usb-serial num_endpoints check
      USB: option: Add new vendor ID and device ID for AMOI HSDPA modem
      USB: support more Huawei data card product IDs
      USB: option.c: add more device IDs
      USB: Obscure Maxon BP3-USB Device Support 16d8:6280 for option driver
  8. @torvalds

    Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6

    torvalds authored
    * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
      [TCP]: Add return value indication to tcp_prune_ofo_queue().
      PS3: gelic: fix the oops on the broken IE returned from the hypervisor
      b43legacy: fix DMA mapping leakage
      mac80211: remove message on receiving unexpected unencrypted frames
      Update rt2x00 MAINTAINERS entry
      Add rfkill to MAINTAINERS file
      rfkill: Fix device type check when toggling states
      b43legacy: Fix usage of struct device used for DMAing
      ssb: Fix usage of struct device used for DMAing
      MAINTAINERS: move to generic repository for iwlwifi
      b43legacy: fix initvals loading on bcm4303
      rtl8187: Add missing priv->vif assignments
      netconsole: only set CON_PRINTBUFFER if the user specifies a netconsole
      [CAN]: Update documentation of struct sockaddr_can
      MAINTAINERS: isdn4linux@listserv.isdn4linux.de is subscribers-only
      [TCP]: Fix never pruned tcp out-of-order queue.
      [NET_SCHED] sch_api: fix qdisc_tree_decrease_qlen() loop
  9. @pebolle @torvalds

    AFS: Do not describe debug parameters with their value

    pebolle authored torvalds committed
    Describe debug parameters with their names (and not their values).
    
    Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
    Signed-off-by: David Howells <dhowells@redhat.com>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
  10. @gregkh

    USB: remove broken usb-serial num_endpoints check

    gregkh authored
    The num_interrupt_in, num_bulk_in, and other checks in the usb-serial
    code are just wrong, there are too many different devices out there with
    different numbers of endpoints.  We need to just be sticking with the
    device ids instead of trying to catch this kind of thing.  It broke too
    many different devices.
    
    This fixes a large number of usb-serial devices to get them working
    properly again.
    
    
    Cc: Oliver Neukum <oliver@neukum.org>
    Cc: stable <stable@kernel.org>
    Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
  11. @gregkh

    USB: option: Add new vendor ID and device ID for AMOI HSDPA modem

    tang kai authored gregkh committed
    This patch add new vendor ID and device ID  for AMOI HSDPA modem. 
    
    From: tang kai <tangk73@hotmail.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
  12. @gregkh

    USB: support more Huawei data card product IDs

    fangxiaozhi authored gregkh committed
     - declare the unusal device for Huawei data card devices in
       unusual_devs.h
     - disable the product ID matching for Huawei data card devices in
       usb_match_device function of driver.c
     - declare the product IDs in option.c.
    
    Signed-off-by: fangxiaozhi <huananhu@huawei.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
  13. @gregkh

    USB: option.c: add more device IDs

    Matthias Urlichs authored gregkh committed
    Add devices by AMOI and NovatelWireless.
    
    Signed-Off-By: Matthias Urlichs <matthias@urlichs.de>
    Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
  14. @quozl @gregkh

    USB: Obscure Maxon BP3-USB Device Support 16d8:6280 for option driver

    quozl authored gregkh committed
    The modem was detected, the ttyUSB{0,1,2} appeared, a call could be
    made, and the expected data rate was achieved.  Tested for an hour or
    two, total of 100Mb.  I shall do more testing.
    
    Signed-off-by: James Cameron <quozl@laptop.org>
    Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
  15. @davem330

    [TCP]: Add return value indication to tcp_prune_ofo_queue().

    Vitaliy Gusev authored davem330 committed
    Returns non-zero if tp->out_of_order_queue was seen non-empty.
    This allows tcp_try_rmem_schedule() to return early.
    
    Signed-off-by: Vitaliy Gusev <vgusev@openvz.org>
    Signed-off-by: David S. Miller <davem@davemloft.net>
  16. @yakuizhao @torvalds

    acpi: unneccessary to scan the PCI bus already scanned

    yakuizhao authored torvalds committed
    http://bugzilla.kernel.org/show_bug.cgi?id=10124
    
    this change:
    
          commit 08f1c19
          Author: Muli Ben-Yehuda <muli@il.ibm.com>
          Date:   Sun Jul 22 00:23:39 2007 +0300
    
             x86-64: introduce struct pci_sysdata to facilitate sharing of ->sysdata
    
             This patch introduces struct pci_sysdata to x86 and x86-64, and
             converts the existing two users (NUMA, Calgary) to use it.
    
             This lays the groundwork for having other users of sysdata, such as
             the PCI domains work.
    
             The Calgary bits are tested, the NUMA bits just look ok.
    
    replaces pcibios_scan_root by pci_scan_bus_parented...
    
    but in pcibios_scan_root we have a check about scanned busses.
    
    Cc: <yakui.zhao@intel.com>
    Cc: Stian Jordet <stian@jordet.net>
    Cc: Len Brown <lenb@kernel.org>
    Cc: Greg KH <greg@kroah.com>
    Cc: Ingo Molnar <mingo@elte.hu>
    Cc: "Yinghai Lu" <yhlu.kernel@gmail.com>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
  17. @torvalds

    acpi thermal trip points increased to 12

    Krzysztof Helt authored torvalds committed
    The THERMAL_MAX_TRIPS value is set to 10.  It is too few for the Compaq AP550
    machine which has 12 trip points.
    
    Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
    Cc: Len Brown <lenb@kernel.org>
    Cc: Zhang Rui <rui.zhang@intel.com>
    Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
  18. @torvalds

    acpi: bus: check once more for an empty list after locking it

    Chuck Ebbert authored torvalds committed
    List could have become empty after the unlocked check that was made earlier,
    so check again inside the lock.
    
    Should fix https://bugzilla.redhat.com/show_bug.cgi?id=427765
    
    Signed-off-by: Chuck Ebbert <cebbert@redhat.com>
    Cc: <stable@kernel.org>
    Cc: Len Brown <lenb@kernel.org>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
  19. @torvalds

    spi: spi_s3c24xx must initialize num_chipselect

    Ben Dooks authored torvalds committed
    The SPI core now expects num_chipselect to be set correctly as due to added
    checks on the chip being selected before an transfer is allowed.  This patch
    adds a num_cs field to the platform data which needs to be set correctly
    before adding the SPI platform device.
    
    Signed-off-by: Ben Dooks <ben-linux@fluff.org>
    Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
    Cc: Russell King <rmk@arm.linux.org.uk>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
  20. @torvalds

    spi: spi_s3c24xx must initialize bus_num

    Ben Dooks authored torvalds committed
    Pass the bus number we expect the S3C24XX SPI driver to attach to via the
    platform data.
    
    Signed-off-by: Ben Dooks <ben-linux@fluff.org>
    Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
  21. @torvalds

    spi: spi_s3c24xx driver must init completion

    Ben Dooks authored torvalds committed
    The s3c24xx_spi_txrx() function should initialise the completion each time
    before using it, otherwise we end up with the possibility of returning success
    before the interrupt handler has processed all the data.
    
    Signed-off-by: Ben Dooks <ben-linux@fluff.org>
    Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
  22. @jankara @torvalds

    vfs: fix possible deadlock in ext2, ext3, ext4 when using xattrs

    jankara authored torvalds committed
    mb_cache_entry_alloc() was allocating cache entries with GFP_KERNEL.  But
    filesystems are calling this function while holding xattr_sem so possible
    recursion into the fs violates locking ordering of xattr_sem and transaction
    start / i_mutex for ext2-4.  Change mb_cache_entry_alloc() so that filesystems
    can specify desired gfp mask and use GFP_NOFS from all of them.
    
    Signed-off-by: Jan Kara <jack@suse.cz>
    Reported-by: Dave Jones <davej@redhat.com>
    Cc: <linux-ext4@vger.kernel.org>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
  23. @nacc @torvalds

    Documentation: correct overcommit caveat in hugetlbpage.txt

    nacc authored torvalds committed
    As shown by Gurudas Pai recently, we can put hugepages into the surplus
    state (by echo 0 > /proc/sys/vm/nr_hugepages), even when
    /proc/sys/vm/nr_overcommit_hugepages is 0. This is actually correct, to
    allow the original goal (shrink the static pool to 0) to succeed (we are
    converting hugepages to surplus because they are in use). However, the
    documentation does not accurately reflect this case. Update it.
    
    Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
    Acked-by: Andy Whitcroft <apw@shadowen.org>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
  24. @kosaki @torvalds

    add "Isolate" migratetype name to /proc/pagetypeinfo

    kosaki authored torvalds committed
    In a5d76b5 (memory unplug: page isolation by
    KAMEZAWA Hiroyuki), "isolate" migratetype added.  but unfortunately, it
    doesn't treat /proc/pagetypeinfo display logic.
    
    this patch add "Isolate" to pagetype name field.
    
    /proc/pagetype
    before:
    ------------------------------------------------------------------------------------------------------------------------
    Free pages count per migrate type at order       0      1      2      3      4      5      6      7      8      9     10
    Node    0, zone      DMA, type    Unmovable      1      2      2      2      1      2      2      1      1      0      0
    Node    0, zone      DMA, type  Reclaimable      0      0      0      0      0      0      0      0      0      0      0
    Node    0, zone      DMA, type      Movable      2      3      3      1      3      3      2      0      0      0      0
    Node    0, zone      DMA, type      Reserve      0      0      0      0      0      0      0      0      0      0      1
    Node    0, zone      DMA, type       <NULL>      0      0      0      0      0      0      0      0      0      0      0
    Node    0, zone   Normal, type    Unmovable      1      9      7      4      1      1      1      1      0      0      0
    Node    0, zone   Normal, type  Reclaimable      5      2      0      0      1      1      0      0      0      1      0
    Node    0, zone   Normal, type      Movable      0      1      1      0      0      0      1      0      0      1     60
    Node    0, zone   Normal, type      Reserve      0      0      0      0      0      0      0      0      0      0      1
    Node    0, zone   Normal, type       <NULL>      0      0      0      0      0      0      0      0      0      0      0
    Node    0, zone  HighMem, type    Unmovable      0      0      1      1      1      0      1      1      2      2      0
    Node    0, zone  HighMem, type  Reclaimable      0      0      0      0      0      0      0      0      0      0      0
    Node    0, zone  HighMem, type      Movable    236     62      6      2      2      1      1      0      1      1     16
    Node    0, zone  HighMem, type      Reserve      0      0      0      0      0      0      0      0      0      0      1
    Node    0, zone  HighMem, type       <NULL>      0      0      0      0      0      0      0      0      0      0      0
    
    Number of blocks type     Unmovable  Reclaimable      Movable      Reserve       <NULL>
    Node 0, zone      DMA            1            0            2       1            0
    Node 0, zone   Normal           10           40          169       1            0
    Node 0, zone  HighMem            2            0          283       1            0
    
    after:
    ------------------------------------------------------------------------------------------------------------------------
    Free pages count per migrate type at order       0      1      2      3      4      5      6      7      8      9     10
    Node    0, zone      DMA, type    Unmovable      1      2      2      2      1      2      2      1      1      0      0
    Node    0, zone      DMA, type  Reclaimable      0      0      0      0      0      0      0      0      0      0      0
    Node    0, zone      DMA, type      Movable      2      3      3      1      3      3      2      0      0      0      0
    Node    0, zone      DMA, type      Reserve      0      0      0      0      0      0      0      0      0      0      1
    Node    0, zone      DMA, type      Isolate      0      0      0      0      0      0      0      0      0      0      0
    Node    0, zone   Normal, type    Unmovable      0      2      1      1      0      1      0      0      0      0      0
    Node    0, zone   Normal, type  Reclaimable      1      1      1      1      1      0      1      1      1      0      0
    Node    0, zone   Normal, type      Movable      0      1      1      1      0      1      0      1      0      0    196
    Node    0, zone   Normal, type      Reserve      0      0      0      0      0      0      0      0      0      0      1
    Node    0, zone   Normal, type      Isolate      0      0      0      0      0      0      0      0      0      0      0
    Node    0, zone  HighMem, type    Unmovable      0      1      0      0      0      1      1      1      2      2      0
    Node    0, zone  HighMem, type  Reclaimable      0      0      0      0      0      0      0      0      0      0      0
    Node    0, zone  HighMem, type      Movable      1      0      1      1      0      0      0      0      1      0    200
    Node    0, zone  HighMem, type      Reserve      0      0      0      0      0      0      0      0      0      0      1
    Node    0, zone  HighMem, type      Isolate      0      0      0      0      0      0      0      0      0      0      0
    
    Number of blocks type     Unmovable  Reclaimable      Movable      Reserve      Isolate
    Node 0, zone      DMA            1            0            2       1            0
    Node 0, zone   Normal            8            4          207       1            0
    Node 0, zone  HighMem            2            0          283       1            0
    
    Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
    Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
    Acked-by: Mel Gorman <mel@csn.ul.ie>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
  25. @dmvo @torvalds

    Fix typos in Documentation/filesystems/seq_file.txt

    dmvo authored torvalds committed
    A couple of typos crept into the newly added document about the seq_file
    interface.  This patch corrects those typos and simultaneously deletes
    unnecessary trailing spaces.
    
    Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
  26. @congwang @torvalds

    uml: compile error fix

    congwang authored torvalds committed
    This patch fixes this error:
    
    In file included from /home/wangcong/projects/linux-2.6/arch/um/kernel/smp.c:9:
    include2/asm/tlb.h: In function `tlb_remove_page':
    include2/asm/tlb.h:101: error: implicit declaration of function `page_cache_release'
    
    And since including <linux/pagemap.h> in <linux/swap.h> will break sparc,
    we add this #include in uml's own header.
    
    Acked-by: Jeff Dike <jdike@addtoit.com>
    Signed-off-by: WANG Cong <wangcong@zeuux.org>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
  27. @torvalds

    memcg: fix oops in oom handling

    Li Zefan authored torvalds committed
    When I used a test program to fork mass processes and immediately move them to
    a cgroup where the memory limit is low enough to trigger oom kill, I got oops:
    
    BUG: unable to handle kernel NULL pointer dereference at 0000000000000808
    IP: [<ffffffff8045c47f>] _spin_lock_irqsave+0x8/0x18
    PGD 4c95f067 PUD 4406c067 PMD 0
    Oops: 0002 [1] SMP
    CPU 2
    Modules linked in:
    
    Pid: 11973, comm: a.out Not tainted 2.6.25-rc7 #5
    RIP: 0010:[<ffffffff8045c47f>]  [<ffffffff8045c47f>] _spin_lock_irqsave+0x8/0x18
    RSP: 0018:ffff8100448c7c30  EFLAGS: 00010002
    RAX: 0000000000000202 RBX: 0000000000000009 RCX: 000000000001c9f3
    RDX: 0000000000000100 RSI: 0000000000000001 RDI: 0000000000000808
    RBP: ffff81007e444080 R08: 0000000000000000 R09: ffff8100448c7900
    R10: ffff81000105f480 R11: 00000100ffffffff R12: ffff810067c84140
    R13: 0000000000000001 R14: ffff8100441d0018 R15: ffff81007da56200
    FS:  00007f70eb1856f0(0000) GS:ffff81007fbad3c0(0000) knlGS:0000000000000000
    CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
    CR2: 0000000000000808 CR3: 000000004498a000 CR4: 00000000000006e0
    DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
    DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
    Process a.out (pid: 11973, threadinfo ffff8100448c6000, task ffff81007da533e0)
    Stack:  ffffffff8023ef5a 00000000000000d0 ffffffff80548dc0 00000000000000d0
     ffff810067c84140 ffff81007e444080 ffffffff8026cef9 00000000000000d0
     ffff8100441d0000 00000000000000d0 ffff8100441d0000 ffff8100505445c0
    Call Trace:
     [<ffffffff8023ef5a>] ? force_sig_info+0x25/0xb9
     [<ffffffff8026cef9>] ? oom_kill_task+0x77/0xe2
     [<ffffffff8026d696>] ? mem_cgroup_out_of_memory+0x55/0x67
     [<ffffffff802910ad>] ? mem_cgroup_charge_common+0xec/0x202
     [<ffffffff8027997b>] ? handle_mm_fault+0x24e/0x77f
     [<ffffffff8022c4af>] ? default_wake_function+0x0/0xe
     [<ffffffff8027a17a>] ? get_user_pages+0x2ce/0x3af
     [<ffffffff80290fee>] ? mem_cgroup_charge_common+0x2d/0x202
     [<ffffffff8027a441>] ? make_pages_present+0x8e/0xa4
     [<ffffffff8027d1ab>] ? mmap_region+0x373/0x429
     [<ffffffff8027d7eb>] ? do_mmap_pgoff+0x2ff/0x364
     [<ffffffff80210471>] ? sys_mmap+0xe5/0x111
     [<ffffffff8020bfc9>] ? tracesys+0xdc/0xe1
    
    Code: 00 00 01 48 8b 3c 24 e9 46 d4 dd ff f0 ff 07 48 8b 3c 24 e9 3a d4 dd ff fe 07 48 8b 3c 24 e9 2f d4 dd ff 9c 58 fa ba 00 01 00 00 <f0> 66 0f c1 17 38 f2 74 06 f3 90 8a 17 eb f6 c3 fa b8 00 01 00
    RIP  [<ffffffff8045c47f>] _spin_lock_irqsave+0x8/0x18
     RSP <ffff8100448c7c30>
    CR2: 0000000000000808
    ---[ end trace c3702fa668021ea4 ]---
    
    It's reproducable in a x86_64 box, but doesn't happen in x86_32.
    
    This is because tsk->sighand is not guarded by RCU, so we have to
    hold tasklist_lock, just as what out_of_memory() does.
    
    Signed-off-by: Li Zefan <lizf@cn.fujitsu>
    Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
    Acked-by: Balbir Singh <balbir@linux.vnet.ibm.com>
    Cc: Pavel Emelianov <xemul@openvz.org>
    Cc: Paul Menage <menage@google.com>
    Cc: Oleg Nesterov <oleg@tv-sign.ru>
    Cc: David Rientjes <rientjes@cs.washington.edu>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
  28. @kaysievers @torvalds

    serial: fix platform driver hotplug/coldplug

    kaysievers authored torvalds committed
    Since 43cc71e, the platform modalias is
    prefixed with "platform:".  Add MODULE_ALIAS() to the hotpluggable serial
    platform drivers, to re-enable auto loading.
    
    NOTE that Kconfig for some of these drivers doesn't allow modular builds, and
    thus doesn't match the driver source's unload support.  Presumably their
    unload code is buggy and/or weakly tested...
    
    [dbrownell@users.sourceforge.net: more drivers, registration fixes]
    Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
    Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
    Acked-by: Peter Korsgaard <jacmet@sunsite.dk>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
  29. @kaysievers @torvalds

    pcmcia: fix platform driver hotplug/coldplug

    kaysievers authored torvalds committed
    Since 43cc71e, the platform modalias is
    prefixed with "platform:".  Add MODULE_ALIAS() to the hotpluggable PCMCIA
    platform drivers, to re-enable auto loading.
    
    [dbrownell@users.sourceforge.net: registration fixes]
    Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
    Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
  30. @kaysievers @torvalds

    misc: fix platform driver hotplug/coldplug

    kaysievers authored torvalds committed
    Since 43cc71e, the platform modalias is
    prefixed with "platform:".  Add MODULE_ALIAS() to the hotpluggable 'misc'
    platform drivers, to re-enable auto loading.
    
    [dbrownell@users.sourceforge.net:  bugfix, registration fixes]
    Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
    Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
  31. @torvalds

    fbdev: fix /proc/fb oops after module removal

    Alexey Dobriyan authored torvalds committed
    /proc/fb is not removed during rmmod.
    
    Steps to reproduce:
    
    	modprobe fb
    	rmmod fb
    	ls /proc
    
    BUG: unable to handle kernel paging request at ffffffffa0094370
    IP: [<ffffffff802b92a1>] proc_get_inode+0x101/0x130
    PGD 203067 PUD 207063 PMD 17e758067 PTE 0
    Oops: 0000 [1] SMP
    last sysfs file: /sys/devices/pci0000:00/0000:00:1e.0/0000:05:02.0/resource
    CPU 1
    Modules linked in: nf_conntrack_irc xt_state iptable_filter ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack ip_tables x_tables vfat fat usbhid ehci_hcd uhci_hcd usbcore sr_mod cdrom [last unloaded: fb]
    Pid: 21205, comm: ls Not tainted 2.6.25-rc8-mm2 #14
    RIP: 0010:[<ffffffff802b92a1>]  [<ffffffff802b92a1>] proc_get_inode+0x101/0x130
    RSP: 0018:ffff81017c4bfc78  EFLAGS: 00010246
    RAX: 0000000000008000 RBX: ffff8101787f5470 RCX: 0000000048011ccc
    RDX: ffffffffa0094320 RSI: ffff810006ad43b0 RDI: ffff81017fc2cc00
    RBP: ffff81017e450300 R08: 0000000000000002 R09: ffff81017c5d1000
    R10: 0000000000000000 R11: 0000000000000246 R12: ffff81016b903a28
    R13: ffff81017f822020 R14: ffff81017c4bfd58 R15: ffff81017f822020
    FS:  00007f08e71696f0(0000) GS:ffff81017fc06480(0000) knlGS:0000000000000000
    CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
    CR2: ffffffffa0094370 CR3: 000000017e54a000 CR4: 00000000000006e0
    DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
    DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
    Process ls (pid: 21205, threadinfo ffff81017c4be000, task ffff81017de48770)
    Stack:  ffff81017c5d1000 00000000ffffffea ffff81017e450300 ffffffff802bdd1e
     ffff81017f802258 ffff81017c4bfe48 ffff81016b903a28 ffff81017f822020
     ffff81017c4bfd48 ffffffff802b9ba0 ffff81016b903a28 ffff81017f802258
    Call Trace:
     [<ffffffff802bdd1e>] ? proc_lookup_de+0x8e/0x100
     [<ffffffff802b9ba0>] ? proc_root_lookup+0x20/0x60
     [<ffffffff802882a7>] ? do_lookup+0x1b7/0x210
     [<ffffffff8028883d>] ? __link_path_walk+0x53d/0x7f0
     [<ffffffff80295eb8>] ? mntput_no_expire+0x28/0x130
     [<ffffffff80288b4a>] ? path_walk+0x5a/0xc0
     [<ffffffff80288dd3>] ? do_path_lookup+0x83/0x1c0
     [<ffffffff80287785>] ? getname+0xe5/0x210
     [<ffffffff80289adb>] ? __user_walk_fd+0x4b/0x80
     [<ffffffff8028236c>] ? vfs_lstat_fd+0x2c/0x70
     [<ffffffff8028bf1e>] ? filldir+0xae/0xf0
     [<ffffffff802b92e9>] ? de_put+0x9/0x50
     [<ffffffff8029633d>] ? mnt_want_write+0x2d/0x80
     [<ffffffff8029339f>] ? touch_atime+0x1f/0x170
     [<ffffffff802b9b1d>] ? proc_root_readdir+0x7d/0xa0
     [<ffffffff802825e7>] ? sys_newlstat+0x27/0x50
     [<ffffffff8028bffb>] ? vfs_readdir+0x9b/0xd0
     [<ffffffff8028c0fe>] ? sys_getdents+0xce/0xe0
     [<ffffffff8020b39b>] ? system_call_after_swapgs+0x7b/0x80
    
    Code: b7 83 b2 00 00 00 25 00 f0 00 00 3d 00 80 00 00 74 19 48 89 93 f0 00 00 00 48 89 df e8 39 9a fd ff 48 89 d8 48 83 c4 08 5b 5d c3 <48> 83 7a 50 00 48 c7 c0 60 16 45 80 48 c7 c2 40 17 45 80 48 0f
    RIP  [<ffffffff802b92a1>] proc_get_inode+0x101/0x130
     RSP <ffff81017c4bfc78>
    CR2: ffffffffa0094370
    ---[ end trace c71hiarjan8ab739 ]---
    
    Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
    "Antonino A. Daplas" <adaplas@pol.net>
    Cc: <stable@kernel.org>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
  32. @kaysievers @torvalds

    leds: fix platform driver hotplug/coldplug

    kaysievers authored torvalds committed
    Since 43cc71e, the platform
    modalias is prefixed with "platform:". Add MODULE_ALIAS() to the
    hotpluggable platform LED drivers, to re-enable auto loading.
    
    [dbrownell@users.sourceforge.net: more drivers, registration fixes]
    Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
    Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
    Acked-by: Richard Purdie <rpurdie@rpsys.net>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
  33. @yakuizhao @torvalds

    rtc: fix the error in the function of cmos_set_alarm

    yakuizhao authored torvalds committed
    There is a bug in the function of cmos_set_alarm.  RTC alarm time for October
    can't be set correctly.
    
    For October: 0x0A will be written into the RTC region (MONTH_ALARM) in current
    kernel.  But in fact 0x10 should be written.  Wildcards are also not handled
    correctly.
    
    Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
    Signed-off-by: Zhang Rui <rui.zhang@intel.com>
    Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
    Cc: Alessandro Zummo <a.zummo@towertech.it>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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