1. 19 9月, 2012 3 次提交
  2. 18 9月, 2012 18 次提交
    • L
      Merge branch 'for-3.6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq · 4651afbb
      Linus Torvalds 提交于
      Pull another workqueue fix from Tejun Heo:
       "Unfortunately, yet another late fix.  This too is discovered and fixed
        by Lai.  This bug was introduced during this merge window by commit
        25511a47 ("workqueue: reimplement CPU online rebinding to handle
        idle workers") which started using WORKER_REBIND flag for idle rebind
        too.
      
        The bug is relatively easy to trigger if the CPU rapidly goes through
        off, on and then off (and stay off).  The fix is on the safer side.
        This hasn't been on linux-next yet but I'm pushing early so that it
        can get more exposure before v3.6 release."
      
      * 'for-3.6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
        workqueue: always clear WORKER_REBIND in busy_worker_rebind_fn()
      4651afbb
    • L
      workqueue: always clear WORKER_REBIND in busy_worker_rebind_fn() · 960bd11b
      Lai Jiangshan 提交于
      busy_worker_rebind_fn() didn't clear WORKER_REBIND if rebinding failed
      (CPU is down again).  This used to be okay because the flag wasn't
      used for anything else.
      
      However, after 25511a47 "workqueue: reimplement CPU online rebinding
      to handle idle workers", WORKER_REBIND is also used to command idle
      workers to rebind.  If not cleared, the worker may confuse the next
      CPU_UP cycle by having REBIND spuriously set or oops / get stuck by
      prematurely calling idle_worker_rebind().
      
        WARNING: at /work/os/wq/kernel/workqueue.c:1323 worker_thread+0x4cd/0x5
       00()
        Hardware name: Bochs
        Modules linked in: test_wq(O-)
        Pid: 33, comm: kworker/1:1 Tainted: G           O 3.6.0-rc1-work+ #3
        Call Trace:
         [<ffffffff8109039f>] warn_slowpath_common+0x7f/0xc0
         [<ffffffff810903fa>] warn_slowpath_null+0x1a/0x20
         [<ffffffff810b3f1d>] worker_thread+0x4cd/0x500
         [<ffffffff810bc16e>] kthread+0xbe/0xd0
         [<ffffffff81bd2664>] kernel_thread_helper+0x4/0x10
        ---[ end trace e977cf20f4661968 ]---
        BUG: unable to handle kernel NULL pointer dereference at           (null)
        IP: [<ffffffff810b3db0>] worker_thread+0x360/0x500
        PGD 0
        Oops: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC
        Modules linked in: test_wq(O-)
        CPU 0
        Pid: 33, comm: kworker/1:1 Tainted: G        W  O 3.6.0-rc1-work+ #3 Bochs Bochs
        RIP: 0010:[<ffffffff810b3db0>]  [<ffffffff810b3db0>] worker_thread+0x360/0x500
        RSP: 0018:ffff88001e1c9de0  EFLAGS: 00010086
        RAX: 0000000000000000 RBX: ffff88001e633e00 RCX: 0000000000004140
        RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000009
        RBP: ffff88001e1c9ea0 R08: 0000000000000000 R09: 0000000000000001
        R10: 0000000000000002 R11: 0000000000000000 R12: ffff88001fc8d580
        R13: ffff88001fc8d590 R14: ffff88001e633e20 R15: ffff88001e1c6900
        FS:  0000000000000000(0000) GS:ffff88001fc00000(0000) knlGS:0000000000000000
        CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
        CR2: 0000000000000000 CR3: 00000000130e8000 CR4: 00000000000006f0
        DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
        DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
        Process kworker/1:1 (pid: 33, threadinfo ffff88001e1c8000, task ffff88001e1c6900)
        Stack:
         ffff880000000000 ffff88001e1c9e40 0000000000000001 ffff88001e1c8010
         ffff88001e519c78 ffff88001e1c9e58 ffff88001e1c6900 ffff88001e1c6900
         ffff88001e1c6900 ffff88001e1c6900 ffff88001fc8d340 ffff88001fc8d340
        Call Trace:
         [<ffffffff810bc16e>] kthread+0xbe/0xd0
         [<ffffffff81bd2664>] kernel_thread_helper+0x4/0x10
        Code: b1 00 f6 43 48 02 0f 85 91 01 00 00 48 8b 43 38 48 89 df 48 8b 00 48 89 45 90 e8 ac f0 ff ff 3c 01 0f 85 60 01 00 00 48 8b 53 50 <8b> 02 83 e8 01 85 c0 89 02 0f 84 3b 01 00 00 48 8b 43 38 48 8b
        RIP  [<ffffffff810b3db0>] worker_thread+0x360/0x500
         RSP <ffff88001e1c9de0>
        CR2: 0000000000000000
      
      There was no reason to keep WORKER_REBIND on failure in the first
      place - WORKER_UNBOUND is guaranteed to be set in such cases
      preventing incorrectly activating concurrency management.  Always
      clear WORKER_REBIND.
      
      tj: Updated comment and description.
      Signed-off-by: NLai Jiangshan <laijs@cn.fujitsu.com>
      Signed-off-by: NTejun Heo <tj@kernel.org>
      960bd11b
    • L
      Merge branch 'akpm' (Andrew's patch-bomb) · 08077ca8
      Linus Torvalds 提交于
      Merge fixes from Andrew Morton:
       "13 patches.  12 are fixes and one is a little preparatory thing for
        Andi."
      
      * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (13 commits)
        memory hotplug: fix section info double registration bug
        mm/page_alloc: fix the page address of higher page's buddy calculation
        drivers/rtc/rtc-twl.c: ensure all interrupts are disabled during probe
        compiler.h: add __visible
        pid-namespace: limit value of ns_last_pid to (0, max_pid)
        include/net/sock.h: squelch compiler warning in sk_rmem_schedule()
        slub: consider pfmemalloc_match() in get_partial_node()
        slab: fix starting index for finding another object
        slab: do ClearSlabPfmemalloc() for all pages of slab
        nbd: clear waiting_queue on shutdown
        MAINTAINERS: fix TXT maintainer list and source repo path
        mm/ia64: fix a memory block size bug
        memory hotplug: reset pgdat->kswapd to NULL if creating kernel thread fails
      08077ca8
    • Q
      memory hotplug: fix section info double registration bug · f14851af
      qiuxishi 提交于
      There may be a bug when registering section info.  For example, on my
      Itanium platform, the pfn range of node0 includes the other nodes, so
      other nodes' section info will be double registered, and memmap's page
      count will equal to 3.
      
        node0: start_pfn=0x100,    spanned_pfn=0x20fb00, present_pfn=0x7f8a3, => 0x000100-0x20fc00
        node1: start_pfn=0x80000,  spanned_pfn=0x80000,  present_pfn=0x80000, => 0x080000-0x100000
        node2: start_pfn=0x100000, spanned_pfn=0x80000,  present_pfn=0x80000, => 0x100000-0x180000
        node3: start_pfn=0x180000, spanned_pfn=0x80000,  present_pfn=0x80000, => 0x180000-0x200000
      
        free_all_bootmem_node()
      	register_page_bootmem_info_node()
      		register_page_bootmem_info_section()
      
      When hot remove memory, we can't free the memmap's page because
      page_count() is 2 after put_page_bootmem().
      
        sparse_remove_one_section()
      	free_section_usemap()
      		free_map_bootmem()
      			put_page_bootmem()
      
      [akpm@linux-foundation.org: add code comment]
      Signed-off-by: NXishi Qiu <qiuxishi@huawei.com>
      Signed-off-by: NJiang Liu <jiang.liu@huawei.com>
      Acked-by: NMel Gorman <mgorman@suse.de>
      Cc: "Luck, Tony" <tony.luck@intel.com>
      Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
      Cc: <stable@vger.kernel.org>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      f14851af
    • L
      mm/page_alloc: fix the page address of higher page's buddy calculation · 0ba8f2d5
      Li Haifeng 提交于
      The heuristic method for buddy has been introduced since commit
      43506fad ("mm/page_alloc.c: simplify calculation of combined index
      of adjacent buddy lists").  But the page address of higher page's buddy
      was wrongly calculated, which will lead page_is_buddy to fail for ever.
      IOW, the heuristic method would be disabled with the wrong page address
      of higher page's buddy.
      
      Calculating the page address of higher page's buddy should be based
      higher_page with the offset between index of higher page and index of
      higher page's buddy.
      Signed-off-by: NHaifeng Li <omycle@gmail.com>
      Signed-off-by: NGavin Shan <shangw@linux.vnet.ibm.com>
      Reviewed-by: NMichal Hocko <mhocko@suse.cz>
      Cc: KyongHo Cho <pullip.cho@samsung.com>
      Cc: Mel Gorman <mgorman@suse.de>
      Cc: Minchan Kim <minchan.kim@gmail.com>
      Cc: Johannes Weiner <jweiner@redhat.com>
      Cc: <stable@vger.kernel.org>	[2.6.38+]
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      0ba8f2d5
    • K
      drivers/rtc/rtc-twl.c: ensure all interrupts are disabled during probe · 8dcebaa9
      Kevin Hilman 提交于
      On some platforms, bootloaders are known to do some interesting RTC
      programming.  Without going into the obscurities as to why this may be
      the case, suffice it to say the the driver should not make any
      assumptions about the state of the RTC when the driver loads.  In
      particular, the driver probe should be sure that all interrupts are
      disabled until otherwise programmed.
      
      This was discovered when finding bursty I2C traffic every second on
      Overo platforms.  This I2C overhead was keeping the SoC from hitting
      deep power states.  The cause was found to be the RTC firing every
      second on the I2C-connected TWL PMIC.
      
      Special thanks to Felipe Balbi for suggesting to look for a rogue driver
      as the source of the I2C traffic rather than the I2C driver itself.
      
      Special thanks to Steve Sakoman for helping track down the source of the
      continuous RTC interrups on the Overo boards.
      Signed-off-by: NKevin Hilman <khilman@ti.com>
      Cc: Felipe Balbi <balbi@ti.com>
      Tested-by: NSteve Sakoman <steve@sakoman.com>
      Cc: Alessandro Zummo <a.zummo@towertech.it>
      Tested-by: NShubhrajyoti Datta <omaplinuxkernel@gmail.com>
      Cc: <stable@vger.kernel.org>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      8dcebaa9
    • A
      compiler.h: add __visible · 9a858dc7
      Andi Kleen 提交于
      gcc 4.6+ has support for a externally_visible attribute that prevents the
      optimizer from optimizing unused symbols away.  Add a __visible macro to
      use it with that compiler version or later.
      
      This is used (at least) by the "Link Time Optimization" patchset.
      Signed-off-by: NAndi Kleen <ak@linux.intel.com>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      9a858dc7
    • A
      pid-namespace: limit value of ns_last_pid to (0, max_pid) · 579035dc
      Andrew Vagin 提交于
      The kernel doesn't check the pid for negative values, so if you try to
      write -2 to /proc/sys/kernel/ns_last_pid, you will get a kernel panic.
      
      The crash happens because the next pid is -1, and alloc_pidmap() will
      try to access to a nonexistent pidmap.
      
        map = &pid_ns->pidmap[pid/BITS_PER_PAGE];
      Signed-off-by: NAndrew Vagin <avagin@openvz.org>
      Acked-by: NCyrill Gorcunov <gorcunov@openvz.org>
      Acked-by: NOleg Nesterov <oleg@redhat.com>
      Cc: Eric W. Biederman <ebiederm@xmission.com>
      Cc: Pavel Emelyanov <xemul@parallels.com>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      579035dc
    • C
      include/net/sock.h: squelch compiler warning in sk_rmem_schedule() · 35c448a8
      Chuck Lever 提交于
      This warning:
      
        In file included from linux/include/linux/tcp.h:227:0,
                         from linux/include/linux/ipv6.h:221,
                         from linux/include/net/ipv6.h:16,
                         from linux/include/linux/sunrpc/clnt.h:26,
                         from linux/net/sunrpc/stats.c:22:
        linux/include/net/sock.h: In function `sk_rmem_schedule':
        linux/nfs-2.6/include/net/sock.h:1339:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
      
      is seen with gcc (GCC) 4.6.3 20120306 (Red Hat 4.6.3-2) using the
      -Wextra option.
      
      Commit c76562b6 ("netvm: prevent a stream-specific deadlock")
      accidentally replaced the "size" parameter of sk_rmem_schedule() with an
      unsigned int.  This changes the semantics of the comparison in the
      return statement.
      
      In sk_wmem_schedule we have syntactically the same comparison, but
      "size" is a signed integer.  In addition, __sk_mem_schedule() takes a
      signed integer for its "size" parameter, so there is an implicit type
      conversion in sk_rmem_schedule() anyway.
      
      Revert the "size" parameter back to a signed integer so that the
      semantics of the expressions in both sk_[rw]mem_schedule() are exactly
      the same.
      Signed-off-by: NChuck Lever <chuck.lever@oracle.com>
      Signed-off-by: NMel Gorman <mgorman@suse.de>
      Cc: David Miller <davem@davemloft.net>
      Cc: Joonsoo Kim <js1304@gmail.com>
      Cc: David Rientjes <rientjes@google.com>
      Cc: Pekka Enberg <penberg@kernel.org>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      35c448a8
    • J
      slub: consider pfmemalloc_match() in get_partial_node() · 8ba00bb6
      Joonsoo Kim 提交于
      get_partial() is currently not checking pfmemalloc_match() meaning that
      it is possible for pfmemalloc pages to leak to non-pfmemalloc users.
      This is a problem in the following situation.  Assume that there is a
      request from normal allocation and there are no objects in the per-cpu
      cache and no node-partial slab.
      
      In this case, slab_alloc enters the slow path and new_slab_objects() is
      called which may return a PFMEMALLOC page.  As the current user is not
      allowed to access PFMEMALLOC page, deactivate_slab() is called
      ([5091b74a: mm: slub: optimise the SLUB fast path to avoid pfmemalloc
      checks]) and returns an object from PFMEMALLOC page.
      
      Next time, when we get another request from normal allocation,
      slab_alloc() enters the slow-path and calls new_slab_objects().  In
      new_slab_objects(), we call get_partial() and get a partial slab which
      was just deactivated but is a pfmemalloc page.  We extract one object
      from it and re-deactivate.
      
        "deactivate -> re-get in get_partial -> re-deactivate" occures repeatedly.
      
      As a result, access to PFMEMALLOC page is not properly restricted and it
      can cause a performance degradation due to frequent deactivation.
      deactivation frequently.
      
      This patch changes get_partial_node() to take pfmemalloc_match() into
      account and prevents the "deactivate -> re-get in get_partial()
      scenario.  Instead, new_slab() is called.
      Signed-off-by: NJoonsoo Kim <js1304@gmail.com>
      Acked-by: NDavid Rientjes <rientjes@google.com>
      Signed-off-by: NMel Gorman <mgorman@suse.de>
      Cc: David Miller <davem@davemloft.net>
      Cc: Chuck Lever <chuck.lever@oracle.com>
      Cc: Pekka Enberg <penberg@kernel.org>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      8ba00bb6
    • J
      slab: fix starting index for finding another object · d014dc2e
      Joonsoo Kim 提交于
      In array cache, there is a object at index 0, check it.
      Signed-off-by: NJoonsoo Kim <js1304@gmail.com>
      Signed-off-by: NMel Gorman <mgorman@suse.de>
      Cc: David Miller <davem@davemloft.net>
      Cc: Chuck Lever <chuck.lever@oracle.com>
      Cc: David Rientjes <rientjes@google.com>
      Cc: Pekka Enberg <penberg@kernel.org>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      d014dc2e
    • M
      slab: do ClearSlabPfmemalloc() for all pages of slab · 30c29bea
      Mel Gorman 提交于
      Right now, we call ClearSlabPfmemalloc() for first page of slab when we
      clear SlabPfmemalloc flag.  This is fine for most swap-over-network use
      cases as it is expected that order-0 pages are in use.  Unfortunately it
      is possible that that __ac_put_obj() checks SlabPfmemalloc on a tail
      page and while this is harmless, it is sloppy.  This patch ensures that
      the head page is always used.
      
      This problem was originally identified by Joonsoo Kim.
      
      [js1304@gmail.com: Original implementation and problem identification]
      Signed-off-by: NMel Gorman <mgorman@suse.de>
      Cc: David Miller <davem@davemloft.net>
      Cc: Chuck Lever <chuck.lever@oracle.com>
      Cc: Joonsoo Kim <js1304@gmail.com>
      Cc: David Rientjes <rientjes@google.com>
      Cc: Pekka Enberg <penberg@kernel.org>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      30c29bea
    • P
      nbd: clear waiting_queue on shutdown · fded4e09
      Paul Clements 提交于
      Fix a serious but uncommon bug in nbd which occurs when there is heavy
      I/O going to the nbd device while, at the same time, a failure (server,
      network) or manual disconnect of the nbd connection occurs.
      
      There is a small window between the time that the nbd_thread is stopped
      and the socket is shutdown where requests can continue to be queued to
      nbd's internal waiting_queue.  When this happens, those requests are
      never completed or freed.
      
      The fix is to clear the waiting_queue on shutdown of the nbd device, in
      the same way that the nbd request queue (queue_head) is already being
      cleared.
      Signed-off-by: NPaul Clements <paul.clements@steeleye.com>
      Cc: <stable@vger.kernel.org>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      fded4e09
    • G
      MAINTAINERS: fix TXT maintainer list and source repo path · e9b7d7c8
      Gang Wei 提交于
      Signed-off-by: NGang Wei <gang.wei@intel.com>
      Cc: Richard L Maliszewski <richard.l.maliszewski@intel.com>
      Cc: Gang Wei <gang.wei@intel.com>
      Cc: Shane Wang <shane.wang@intel.com>
      Cc: Ingo Molnar <mingo@elte.hu>
      Cc: "H. Peter Anvin" <hpa@zytor.com>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      e9b7d7c8
    • J
      mm/ia64: fix a memory block size bug · 05cf9639
      Jianguo Wu 提交于
      I found following definition in include/linux/memory.h, in my IA64
      platform, SECTION_SIZE_BITS is equal to 32, and MIN_MEMORY_BLOCK_SIZE
      will be 0.
      
        #define MIN_MEMORY_BLOCK_SIZE     (1 << SECTION_SIZE_BITS)
      
      Because MIN_MEMORY_BLOCK_SIZE is int type and length of 32bits,
      so MIN_MEMORY_BLOCK_SIZE(1 << 32) will will equal to 0.
      Actually when SECTION_SIZE_BITS >= 31, MIN_MEMORY_BLOCK_SIZE will be wrong.
      This will cause wrong system memory infomation in sysfs.
      I think it should be:
      
        #define MIN_MEMORY_BLOCK_SIZE     (1UL << SECTION_SIZE_BITS)
      
      And "echo offline > memory0/state" will cause following call trace:
      
        kernel BUG at mm/memory_hotplug.c:885!
        sh[6455]: bugcheck! 0 [1]
        Pid: 6455, CPU 0, comm:                   sh
        psr : 0000101008526030 ifs : 8000000000000fa4 ip  : [<a0000001008c40f0>]    Not tainted (3.6.0-rc1)
        ip is at offline_pages+0x210/0xee0
        Call Trace:
          show_stack+0x80/0xa0
          show_regs+0x640/0x920
          die+0x190/0x2c0
          die_if_kernel+0x50/0x80
          ia64_bad_break+0x3d0/0x6e0
          ia64_native_leave_kernel+0x0/0x270
          offline_pages+0x210/0xee0
          alloc_pages_current+0x180/0x2a0
      Signed-off-by: NJianguo Wu <wujianguo@huawei.com>
      Signed-off-by: NJiang Liu <jiang.liu@huawei.com>
      Cc: "Luck, Tony" <tony.luck@intel.com>
      Reviewed-by: NMichal Hocko <mhocko@suse.cz>
      Cc: <stable@vger.kernel.org>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      05cf9639
    • W
      memory hotplug: reset pgdat->kswapd to NULL if creating kernel thread fails · 18b48d58
      Wen Congyang 提交于
      If kthread_run() fails, pgdat->kswapd contains errno.  When we stop this
      thread, we only check whether pgdat->kswapd is NULL and access it.  If
      it contains errno, it will cause page fault.  Reset pgdat->kswapd to
      NULL when creating kernel thread fails can avoid this problem.
      Signed-off-by: NWen Congyang <wency@cn.fujitsu.com>
      Reviewed-by: NMinchan Kim <minchan@kernel.org>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      18b48d58
    • L
      Merge tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband · 2ade0b7f
      Linus Torvalds 提交于
      Pull InfiniBand/RDMA fixes from Roland Dreier:
       - A couple more IPoIB fixes for regressions introduced by path database
         conversion
       - Minor other fixes to low-level drivers (cxgb4, mlx4, qib, ocrdma)
      
      * tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
        IB/qib: Fix failure of compliance test C14-024#06_LocalPortNum
        RDMA/ocrdma: Fix CQE expansion of unsignaled WQE
        mlx4_core: Fix integer overflows so 8TBs of memory registration works
        IPoIB: Fix AB-BA deadlock when deleting neighbours
        IPoIB: Fix memory leak in the neigh table deletion flow
        RDMA/cxgb4: Move dereference below NULL test
      2ade0b7f
    • F
      fs/proc: fix potential unregister_sysctl_table hang · 6bf61045
      Francesco Ruggeri 提交于
      The unregister_sysctl_table() function hangs if all references to its
      ctl_table_header structure are not dropped.
      
      This can happen sometimes because of a leak in proc_sys_lookup():
      proc_sys_lookup() gets a reference to the table via lookup_entry(), but
      it does not release it when a subsequent call to sysctl_follow_link()
      fails.
      
      This patch fixes this leak by making sure the reference is always
      dropped on return.
      
      See also commit 076c3eed ("sysctl: Rewrite proc_sys_lookup
      introducing find_entry and lookup_entry") which reorganized this code in
      3.4.
      
      Tested in Linux 3.4.4.
      Signed-off-by: NFrancesco Ruggeri <fruggeri@aristanetworks.com>
      Cc: stable@vger.kernel.org
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      6bf61045
  3. 17 9月, 2012 13 次提交
  4. 16 9月, 2012 3 次提交
  5. 15 9月, 2012 3 次提交
    • T
      Merge tag 'asoc-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus · 5d037f90
      Takashi Iwai 提交于
      ASoC: Updates for 3.6
      
      A bigger set of updates than I'm entirely comfortable with - things
      backed up a bit due to travel.  As ever the majority of these are small,
      focused updates for specific drivers though there are a couple of core
      changes.  There's been good exposure in -next.
      
      The AT91 patch fixes a build break.
      5d037f90
    • L
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-fixes · 3f0c3c8f
      Linus Torvalds 提交于
      Pull GFS2 fixes from Steven Whitehouse:
       "Here are three GFS2 fixes for the current kernel tree.  These are all
        related to the block reservation code which was added at the merge
        window.  That code will be getting an update at the forthcoming merge
        window too.  In the mean time though there are a few smaller issues
        which should be fixed.
      
        The first patch resolves an issue with write sizes of greater than 32
        bits with the size hinting code.  The second ensures that the
        allocation data structure is initialised when using xattrs and the
        third takes into account allocations which may have been made by other
        nodes which affect a reservation on the local node."
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-fixes:
        GFS2: Take account of blockages when using reserved blocks
        GFS2: Fix missing allocation data for set/remove xattr
        GFS2: Make write size hinting code common
      3f0c3c8f
    • L
      Merge branch 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86 · 9cb0ee85
      Linus Torvalds 提交于
      Pull x86 platform driver updates from Matthew Garrett:
       "A few small updates for 3.6 - a trivial regression fix and a couple of
        conformance updates for the gmux driver, plus some tiny fixes for
        asus-wmi, eeepc-laptop and thinkpad_acpi."
      
      * 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86:
        thinkpad_acpi: buffer overflow in fan_get_status()
        eeepc-laptop: fix device reference count leakage in eeepc_rfkill_hotplug()
        platform/x86: fix asus_laptop.wled_type description
        asus-laptop: HRWS/HWRS typo
        drivers-platform-x86: remove useless #ifdef CONFIG_ACPI_VIDEO
        apple-gmux: Fix port address calculation in gmux_pio_write32()
        apple-gmux: Fix index read functions
        apple-gmux: Obtain version info from indexed gmux
      9cb0ee85