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2012-09-27NFC: Use dynamic initialization for rwlocksSzymon Janc
If rwlock is dynamically allocated but statically initialized it is missing proper lockdep annotation. INFO: trying to register non-static key. the code is fine but needs lockdep annotation. turning off the locking correctness validator. Pid: 3352, comm: neard Not tainted 3.5.0-999-nfc+ #2 Call Trace: [<ffffffff810c8526>] __lock_acquire+0x8f6/0x1bf0 [<ffffffff81739045>] ? printk+0x4d/0x4f [<ffffffff810c9eed>] lock_acquire+0x9d/0x220 [<ffffffff81702bfe>] ? nfc_llcp_sock_from_sn+0x4e/0x160 [<ffffffff81746724>] _raw_read_lock+0x44/0x60 [<ffffffff81702bfe>] ? nfc_llcp_sock_from_sn+0x4e/0x160 [<ffffffff81702bfe>] nfc_llcp_sock_from_sn+0x4e/0x160 [<ffffffff817034a7>] nfc_llcp_get_sdp_ssap+0xa7/0x1b0 [<ffffffff81706353>] llcp_sock_bind+0x173/0x210 [<ffffffff815d9c94>] sys_bind+0xe4/0x100 [<ffffffff8139209e>] ? trace_hardirqs_on_thunk+0x3a/0x3f [<ffffffff8174ea69>] system_call_fastpath+0x16/0x1b Signed-off-by: Szymon Janc <szymon.janc@tieto.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-09-27wl18xx: use module_platform_driverDevendra Naga
the driver's init and exit routines can be implemented with the module_platform_driver, as the init and exit code is same as that of the module_platform_driver Signed-off-by: Devendra Naga <devendra.aaru@gmail.com> Signed-off-by: Luciano Coelho <luca@coelho.fi>
2012-09-27Merge branch 'drm-nouveau-fixes' of ↵Dave Airlie
git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-fixes Another spurious dmesg quitening. * 'drm-nouveau-fixes' of git://anongit.freedesktop.org/git/nouveau/linux-2.6: drm/nvc0/fifo: ignore bits in PFIFO_INTR that aren't set in PFIFO_INTR_EN
2012-09-27sparc64: Add SPARC-T4 optimized memcpy.David S. Miller
Before After -------------- -------------- bw_tcp: 1288.53 MB/sec 1637.77 MB/sec bw_pipe: 1517.18 MB/sec 2107.61 MB/sec bw_unix: 1838.38 MB/sec 2640.91 MB/sec make -s -j128 allmodconfig 5min 49sec 5min 31sec Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-27Merge branch 'rcu/idle' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu Pull the RCU adaptive-idle feature from Paul E. McKenney: "This series adds RCU APIs that allow non-idle tasks to enter RCU idle mode and provides x86 code to make use of them, allowing RCU to treat user-mode execution as an extended quiescent state when the new RCU_USER_QS kernel configuration parameter is specified. Work is in progress to port this to a few other architectures, but is not part of this series." Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-09-27perf/x86: Fix typo in uncore_pmu_to_boxYan, Zheng
The variable box should not be declared as static. This could probably cause crashes with sufficiently parallel uncore PMU use. Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com> Cc: eranian@google.com Cc: a.p.zijlstra@chello.nl Link: http://lkml.kernel.org/r/1348709606-2759-1-git-send-email-zheng.z.yan@intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-09-26CIFS: Fix possible freed pointer dereference in CIFS_SessSetupPavel Shilovsky
Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Signed-off-by: Steve French <smfrench@gmail.com>
2012-09-26CIFS: Fix possible freed pointer dereference in SMB2_sess_setupPavel Shilovsky
and remove redundant (rsp == NULL) checks after SendReceive2. Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Signed-off-by: Steve French <smfrench@gmail.com>
2012-09-26CIFS: Make ops->close return voidPavel Shilovsky
Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Signed-off-by: Steve French <smfrench@gmail.com>
2012-09-27md/raid10: fix "enough" function for detecting if array is failed.NeilBrown
The 'enough' function is written to work with 'near' arrays only in that is implicitly assumes that the offset from one 'group' of devices to the next is the same as the number of copies. In reality it is the number of 'near' copies. So change it to make this number explicit. This bug makes it possible to run arrays without enough drives present, which is dangerous. It is appropriate for an -stable kernel, but will almost certainly need to be modified for some of them. Cc: stable@vger.kernel.org Reported-by: Jakub Husák <jakub@gooseman.cz> Signed-off-by: NeilBrown <neilb@suse.de>
2012-09-26coredump: prevent double-free on an error path in core dumperDenys Vlasenko
In !CORE_DUMP_USE_REGSET case, if elf_note_info_init fails to allocate memory for info->fields, it frees already allocated stuff and returns error to its caller, fill_note_info. Which in turn returns error to its caller, elf_core_dump. Which jumps to cleanup label and calls free_note_info, which will happily try to free all info->fields again. BOOM. This is the fix. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> Cc: Venu Byravarasu <vbyravarasu@nvidia.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2012-09-26usb/gadget: fix misannotationsAl Viro
__user * != * __user Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-09-26fcntl: fix misannotationsAl Viro
__user * != * __user... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-09-26ceph: don't abuse d_delete() on failure exitsAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-09-26hypfs: ->d_parent is never NULL or negativeAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-09-26vfs: delete surplus inode NULL checkAlan Cox
Each iteration of d_delete we reload inode from dentry->d_inode and then call S_ISDIR(inode-i_mode), so inode cannot possibly be NULL shortly afterwards unless something went horribly wrong. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-09-26switch simple cases of fget_light to fdgetAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-09-26new helpers: fdget()/fdput()Al Viro
Signed-off-bs: Al Viro <viro@zeniv.linux.org.uk>
2012-09-26switch o2hb_region_dev_write() to fget_light()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-09-26proc_map_files_readdir(): don't bother with grabbing filesAl Viro
all we need is their ->f_mode, so just collect _that_ Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-09-26make get_file() return its argumentAl Viro
simplifies a bunch of callers... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-09-26vhost_set_vring(): turn pollstart/pollstop into boolAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-09-26switch prctl_set_mm_exe_file() to fget_light()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-09-26switch xfs_find_handle() to fget_light()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-09-26switch xfs_swapext() to fget_light()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-09-26switch coda get_device_index() to fget_light()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-09-26switch infinibarf users of fget() to fget_light()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-09-26switch vfio_group_set_container() to fget_light()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-09-26switch btrfs_ioctl_clone() to fget_light()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-09-26switch mqueue syscalls to fget_light()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-09-26switch SNDRV_PCM_IOCTL_LINK to fget_light()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-09-26switch timerfd_[sg]ettime(2) to fget_light()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-09-26switch epoll_wait(2) to fget_light()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-09-26switch btrfs_ioctl_snap_create_transid() to fget_light()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-09-26switch EXT4_IOC_MOVE_EXT to fget_light()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-09-26export fget_lightAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-09-26ext4: close struct file leak on EXT4_IOC_MOVE_EXTAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-09-26switch hpux_getdents() to fget_light()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-09-26switch itanic perfmonctl(2) to fget_light()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-09-26switch osf_getdirentries() to fget_light()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-09-26switch readahead(2) to fget_light()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-09-26switch fadvise(2) to fget_light()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-09-26switch fchmod(2) to fget_light()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-09-26switch fallocate(2) to fget_light()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-09-26switch ftruncate(2) to fget_lightAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-09-26namei.c: fix BS commentAl Viro
get_write_access() is needed for nfsd, not binfmt_aout (the latter has no business doing anything of that kind, of course) Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-09-26don't leak O_CLOEXEC into ->f_flagsAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-09-26procfs: Convert /proc/pid/fdinfo/ handling routines to seq-file v2Cyrill Gorcunov
This patch converts /proc/pid/fdinfo/ handling routines to seq-file which is needed to extend seq operations and plug in auxiliary fdinfo provides from subsystems like eventfd/eventpoll/fsnotify. Note the proc_fd_link no longer call for proc_fd_info, simply because the guts of proc_fd_info() got merged into ->show() of that seq_file Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-09-26procfs: Move /proc/pid/fd[info] handling code to fd.[ch]Cyrill Gorcunov
This patch prepares the ground for further extension of /proc/pid/fd[info] handling code by moving fdinfo handling code into fs/proc/fd.c. I think such move makes both fs/proc/base.c and fs/proc/fd.c easier to read. Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Acked-by: Pavel Emelyanov <xemul@parallels.com> CC: Al Viro <viro@ZenIV.linux.org.uk> CC: Alexey Dobriyan <adobriyan@gmail.com> CC: Andrew Morton <akpm@linux-foundation.org> CC: James Bottomley <jbottomley@parallels.com> CC: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com> CC: Alexey Dobriyan <adobriyan@gmail.com> CC: Matthew Helsley <matt.helsley@gmail.com> CC: "J. Bruce Fields" <bfields@fieldses.org> CC: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-09-26new helper: daemonize_descriptors()Al Viro
descriptor-related parts of daemonize, done right. As the result we simplify the locking rules for ->files - we hold task_lock in *all* cases when we modify ->files. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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