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10 years agoMerge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney...
Linus Torvalds [Wed, 29 Jan 2014 02:53:01 +0000 (18:53 -0800)]
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds

Pull LED subsystem update from Bryan Wu:
 "Basically this cycle is mostly cleanup for LED subsystem"

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds:
  leds: s3c24xx: Remove hardware.h inclusion
  leds: replace list_for_each with list_for_each_entry
  leds: kirkwood: Cleanup in header files
  leds: pwm: Remove a warning on non-DT platforms
  leds: leds-pwm: fix duty time overflow.
  leds: leds-mc13783: Remove unneeded mc13xxx_{un}lock
  leds: leds-mc13783: Remove duplicate field in platform data
  drivers: leds: leds-tca6507: check CONFIG_GPIOLIB whether defined for 'gpio_base'
  leds: lp5523: Support LED MUX configuration on running a pattern
  leds: lp5521/5523: Fix multiple engine usage bug
  LEDS: tca6507 - fix up some comments.
  LEDS: tca6507: add device-tree support for GPIO configuration.
  LEDS: tca6507 - fix bugs in parsing of device-tree configuration.

10 years agoMerge tag 'tty-3.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Linus Torvalds [Wed, 29 Jan 2014 02:50:24 +0000 (18:50 -0800)]
Merge tag 'tty-3.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull serial fixes from Greg KH:
 "Here are tiny and assorted serial driver fixes that have been in a
  branch in my tree for a while and somehow did not get properly merged
  into my big TTY / Serial pull request for 3.14-rc1.  Sorry about that.

  All have been in linux-next for a while with no issues"

* tag 'tty-3.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  tty: xuartps: Properly guard sysrq specific code
  serial: 8250: Fix initialisation of Quatech cards with the AMCC PCI chip
  serial: icom: dereference after free in load_code()
  serial: 8250_dw: add new ACPI IDs
  tty: serial: pch: don't crash if DMA enabled but not loaded
  serial: samsung: move clock deactivation below uart registration

10 years agoMerge tag 'clk-for-linus-3.14-part2' of git://git.linaro.org/people/mike.turquette...
Linus Torvalds [Wed, 29 Jan 2014 02:44:53 +0000 (18:44 -0800)]
Merge tag 'clk-for-linus-3.14-part2' of git://git.linaro.org/people/mike.turquette/linux

Pull more clock framework changes from Mike Turquette:
 "The second half of the clock framework pull requeust for 3.14 is
  dominated by platform support for Qualcomm's MSM SoCs, DT binding
  updates for TI's OMAP-ish processors and additional support for
  Samsung chips.

  Additionally there are other smaller clock driver changes and several
  last minute fixes.  This pull request also includes the HiSilicon
  support that depends on the already-merged arm-soc pull request"

[ Fix up stupid compile error in the source tree with evil merge  - Grumpy Linus ]

* tag 'clk-for-linus-3.14-part2' of git://git.linaro.org/people/mike.turquette/linux: (49 commits)
  clk: sort Makefile
  clk: sunxi: fix overflow when setting up divided factors
  clk: Export more clk-provider functions
  dt-bindings: qcom: Fix warning with duplicate dt define
  clk: si5351: remove variant from platform_data
  clk: samsung: Remove unneeded semicolon
  clk: qcom: Fix modular build
  ARM: OMAP3: use DT clock init if DT data is available
  ARM: AM33xx: remove old clock data and link in new clock init code
  ARM: AM43xx: Enable clock init
  ARM: OMAP: DRA7: Enable clock init
  ARM: OMAP4: remove old clock data and link in new clock init code
  ARM: OMAP2+: io: use new clock init API
  ARM: OMAP2+: PRM: add support for initializing PRCM clock modules from DT
  ARM: OMAP3: hwmod: initialize clkdm from clkdm_name
  ARM: OMAP: hwmod: fix an incorrect clk type cast with _get_clkdm
  ARM: OMAP2+: clock: use driver API instead of direct memory read/write
  ARM: OMAP2+: clock: add support for indexed memmaps
  ARM: dts: am43xx clock data
  ARM: dts: AM35xx: use DT clock data
  ...

10 years agoMerge tag 'xfs-for-linus-v3.14-rc1-2' of git://oss.sgi.com/xfs/xfs
Linus Torvalds [Wed, 29 Jan 2014 02:21:22 +0000 (18:21 -0800)]
Merge tag 'xfs-for-linus-v3.14-rc1-2' of git://oss.sgi.com/xfs/xfs

Pull second xfs update from Ben Myers:
 "Allow logical sector sized direct io on 'advanced format' 4k/512 disk"

* tag 'xfs-for-linus-v3.14-rc1-2' of git://oss.sgi.com/xfs/xfs:
  xfs: allow logical-sector sized O_DIRECT
  xfs: rename xfs_buftarg structure members
  xfs: clean up xfs_buftarg

10 years agoceph: Fix up after semantic merge conflict
Linus Torvalds [Wed, 29 Jan 2014 02:06:18 +0000 (18:06 -0800)]
ceph: Fix up after semantic merge conflict

The previous ceph-client merge resulted in ceph not even building,
because there was a merge conflict that wasn't visible as an actual data
conflict: commit 7221fe4c2ed7 ("ceph: add acl for cephfs") added support
for POSIX ACL's into Ceph, but unluckily we also had the VFS tree change
a lot of the POSIX ACL helper functions to be much more helpful to
filesystems (see for example commits 2aeccbe957d0 "fs: add generic
xattr_acl handlers", 5bf3258fd2ac "fs: make posix_acl_chmod more useful"
and 37bc15392a23 "fs: make posix_acl_create more useful")

The reason this conflict wasn't obvious was many-fold: because it was a
semantic conflict rather than a data conflict, it wasn't visible in the
git merge as a conflict.  And because the VFS tree hadn't been in
linux-next, people hadn't become aware of it that way.  And because I
was at jury duty this morning, I was using my laptop and as a result not
doing constant "allmodconfig" builds.

Anyway, this fixes the build and generally removes a fair chunk of the
Ceph POSIX ACL support code, since the improved helpers seem to match
really well for Ceph too.  But I don't actually have any way to *test*
the end result, and I was really hoping for some ACK's for this.  Oh,
well.

Not compiling certainly doesn't make things easier to test, so I'm
committing this without the acks after having waited for four hours...
Plus it's what I would have done for the merge had I noticed the
semantic conflict..

Reported-by: Dave Jones <davej@redhat.com>
Cc: Sage Weil <sage@inktank.com>
Cc: Guangliang Zhao <lucienchao@gmail.com>
Cc: Li Wang <li.wang@ubuntykylin.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph...
Linus Torvalds [Tue, 28 Jan 2014 19:02:23 +0000 (11:02 -0800)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client

Pull ceph updates from Sage Weil:
 "This is a big batch.  From Ilya we have:

   - rbd support for more than ~250 mapped devices (now uses same scheme
     that SCSI does for device major/minor numbering)
   - crush updates for new mapping behaviors (will be needed for coming
     erasure coding support, among other things)
   - preliminary support for tiered storage pools

  There is also a big series fixing a pile cephfs bugs with clustered
  MDSs from Yan Zheng, ACL support for cephfs from Guangliang Zhao, ceph
  fscache improvements from Li Wang, improved behavior when we get
  ENOSPC from Josh Durgin, some readv/writev improvements from
  Majianpeng, and the usual mix of small cleanups"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: (76 commits)
  ceph: cast PAGE_SIZE to size_t in ceph_sync_write()
  ceph: fix dout() compile warnings in ceph_filemap_fault()
  libceph: support CEPH_FEATURE_OSD_CACHEPOOL feature
  libceph: follow redirect replies from osds
  libceph: rename ceph_osd_request::r_{oloc,oid} to r_base_{oloc,oid}
  libceph: follow {read,write}_tier fields on osd request submission
  libceph: add ceph_pg_pool_by_id()
  libceph: CEPH_OSD_FLAG_* enum update
  libceph: replace ceph_calc_ceph_pg() with ceph_oloc_oid_to_pg()
  libceph: introduce and start using oid abstraction
  libceph: rename MAX_OBJ_NAME_SIZE to CEPH_MAX_OID_NAME_LEN
  libceph: move ceph_file_layout helpers to ceph_fs.h
  libceph: start using oloc abstraction
  libceph: dout() is missing a newline
  libceph: add ceph_kv{malloc,free}() and switch to them
  libceph: support CEPH_FEATURE_EXPORT_PEER
  ceph: add imported caps when handling cap export message
  ceph: add open export target session helper
  ceph: remove exported caps when handling cap import message
  ceph: handle session flush message
  ...

10 years agoMerge branch 'for-linus' of git://git.open-osd.org/linux-open-osd
Linus Torvalds [Tue, 28 Jan 2014 18:57:14 +0000 (10:57 -0800)]
Merge branch 'for-linus' of git://git.open-osd.org/linux-open-osd

Pull exofs and ore fixes from Boaz Harrosh:
 "The main fix here, the first patch, is also destined for -stable.  The
  rest is small trivia and cosmetics.  The ORE patches effect both exofs
  and pnfs-objects very reproducible bugs"

[ ORE is "object raid engine", used by exofs and pnfs  - Linus ]

* 'for-linus' of git://git.open-osd.org/linux-open-osd:
  exofs: Print less in r4w
  exofs: Allow corrupted directory entry to be empty file
  exofs: Allow O_DIRECT open
  ore: Don't crash on NULL bio in _clear_bio
  ore: Fix wrong math in allocation of per device BIO

10 years agoceph: cast PAGE_SIZE to size_t in ceph_sync_write()
Ilya Dryomov [Tue, 28 Jan 2014 17:16:18 +0000 (19:16 +0200)]
ceph: cast PAGE_SIZE to size_t in ceph_sync_write()

Use min_t(size_t, ...) instead of plain min(), which does strict type
checking, to avoid compile warning on i386.

Cc: Jianpeng Ma <majianpeng@gmail.com>
Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
10 years agoceph: fix dout() compile warnings in ceph_filemap_fault()
Ilya Dryomov [Tue, 28 Jan 2014 16:29:29 +0000 (18:29 +0200)]
ceph: fix dout() compile warnings in ceph_filemap_fault()

PAGE_CACHE_SIZE is unsigned long on all architectures, however size_t
is either unsigned int or unsigned long.  Rather than change format
strings, cast PAGE_CACHE_SIZE to size_t to be in line with dout()s in
ceph_page_mkwrite().

Cc: Yan, Zheng <zheng.z.yan@intel.com>
Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
10 years agoMerge tag 'microblaze-3.14-rc1' of git://git.monstr.eu/linux-2.6-microblaze
Linus Torvalds [Tue, 28 Jan 2014 17:04:11 +0000 (09:04 -0800)]
Merge tag 'microblaze-3.14-rc1' of git://git.monstr.eu/linux-2.6-microblaze

Pull microblaze patches from Michal Simek:
 - add CCF support
 - fix BS=0 compilation
 - wire up defconfig
 - some minor cleanups and fixes

* tag 'microblaze-3.14-rc1' of git://git.monstr.eu/linux-2.6-microblaze:
  microblaze: Add missing v8.50.a version
  microblaze: Fix missing bracket in printk
  microblaze: Fix compilation error for BS=0
  microblaze: Disable stack protection from bootloader
  microblaze: Define read/write{b,w,l}_relaxed MMIO
  microblaze: timer: Do not initialized system timer twice
  microblaze: timer: Use generic sched_clock implementation
  microblaze: Add NOTES section to linker script
  microblaze: Add support for CCF
  microblaze: Simplify fcpu helper function
  microblaze/uapi: Use Kbuild logic to include <asm-generic/types.h>
  microblaze: Remove duplicate declarations of _stext[] and _etext[]
  microblaze: Remove _fdt_start casts
  microblaze: Wire up defconfig to mmu_defconfig

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Linus Torvalds [Tue, 28 Jan 2014 17:02:24 +0000 (09:02 -0800)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 patches from Martin Schwidefsky:
 "A new binary interface to be able to query and modify the LPAR
  scheduler weight and cap settings.  Some improvements for the hvc
  terminal over iucv and a couple of bux fixes"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/hypfs: add interface for diagnose 0x304
  s390: wire up sys_sched_setattr/sys_sched_getattr
  s390/uapi: fix struct statfs64 definition
  s390/uaccess: remove dead extern declarations, make functions static
  s390/uaccess: test if current->mm is set before walking page tables
  s390/zfcpdump: make zfcpdump depend on 64BIT
  s390/32bit: fix cmpxchg64
  s390/xpram: don't modify module parameters
  s390/zcrypt: remove zcrypt kmsg documentation again
  s390/hvc_iucv: Automatically assign free HVC terminal devices
  s390/hvc_iucv: Display connection details through device attributes
  s390/hvc_iucv: fix sparse warning
  s390/vmur: Link parent CCW device during UR device creation

10 years agoMerge tag 'cris-correction-for-3.14' of git://jni.nu/cris
Linus Torvalds [Tue, 28 Jan 2014 17:01:14 +0000 (09:01 -0800)]
Merge tag 'cris-correction-for-3.14' of git://jni.nu/cris

Pull cris fix from Jesper Nilsson:
 "One include too much was removed"

* tag 'cris-correction-for-3.14' of git://jni.nu/cris:
  CRISv10: Readd missing header

10 years agoMerge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso...
Linus Torvalds [Tue, 28 Jan 2014 16:54:16 +0000 (08:54 -0800)]
Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

Pull ext4 update from Ted Ts'o:
 "Bug fixes and cleanups for ext4.  We also enable the punch hole
  functionality for bigalloc file systems"

* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: delete "set but not used" variables
  ext4: don't pass freed handle to ext4_walk_page_buffers
  ext4: avoid clearing beyond i_blocks when truncating an inline data file
  ext4: ext4_inode_is_fast_symlink should use EXT4_CLUSTER_SIZE
  ext4: fix a typo in extents.c
  ext4: use %pd printk specificer
  ext4: standardize error handling in ext4_da_write_inline_data_begin()
  ext4: retry allocation when inline->extent conversion failed
  ext4: enable punch hole for bigalloc

10 years agoMerge tag 'nfs-for-3.14-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Linus Torvalds [Tue, 28 Jan 2014 16:46:44 +0000 (08:46 -0800)]
Merge tag 'nfs-for-3.14-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client updates from Trond Myklebust:
 "Highlights include:

   - stable fix for an infinite loop in RPC state machine
   - stable fix for a use after free situation in the NFSv4 trunking discovery
   - stable fix for error handling in the NFSv4 trunking discovery
   - stable fix for the page write update code
   - stable fix for the NFSv4.1 mount time security negotiation
   - stable fix for the NFSv4 open code.
   - O_DIRECT locking fixes
   - fix an Oops in the pnfs file commit code
   - RPC layer needs finer grained handling of connection errors
   - more RPC GSS upcall fixes"

* tag 'nfs-for-3.14-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (30 commits)
  pnfs: Proper delay for NFS4ERR_RECALLCONFLICT in layout_get_done
  pnfs: fix BUG in filelayout_recover_commit_reqs
  nfs4: fix discover_server_trunking use after free
  NFSv4.1: Handle errors correctly in nfs41_walk_client_list
  nfs: always make sure page is up-to-date before extending a write to cover the entire page
  nfs: page cache invalidation for dio
  nfs: take i_mutex during direct I/O reads
  nfs: merge nfs_direct_write into nfs_file_direct_write
  nfs: merge nfs_direct_read into nfs_file_direct_read
  nfs: increment i_dio_count for reads, too
  nfs: defer inode_dio_done call until size update is done
  nfs: fix size updates for aio writes
  nfs4.1: properly handle ENOTSUP in SECINFO_NO_NAME
  NFSv4.1: Fix a race in nfs4_write_inode
  NFSv4.1: Don't trust attributes if a pNFS LAYOUTCOMMIT is outstanding
  point to the right include file in a comment (left over from a9004abc3)
  NFS: dprintk() should not print negative fileids and inode numbers
  nfs: fix dead code of ipv6_addr_scope
  sunrpc: Fix infinite loop in RPC state machine
  SUNRPC: Add tracepoint for socket errors
  ...

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Linus Torvalds [Tue, 28 Jan 2014 16:38:04 +0000 (08:38 -0800)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull vfs updates from Al Viro:
 "Assorted stuff; the biggest pile here is Christoph's ACL series.  Plus
  assorted cleanups and fixes all over the place...

  There will be another pile later this week"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (43 commits)
  __dentry_path() fixes
  vfs: Remove second variable named error in __dentry_path
  vfs: Is mounted should be testing mnt_ns for NULL or error.
  Fix race when checking i_size on direct i/o read
  hfsplus: remove can_set_xattr
  nfsd: use get_acl and ->set_acl
  fs: remove generic_acl
  nfs: use generic posix ACL infrastructure for v3 Posix ACLs
  gfs2: use generic posix ACL infrastructure
  jfs: use generic posix ACL infrastructure
  xfs: use generic posix ACL infrastructure
  reiserfs: use generic posix ACL infrastructure
  ocfs2: use generic posix ACL infrastructure
  jffs2: use generic posix ACL infrastructure
  hfsplus: use generic posix ACL infrastructure
  f2fs: use generic posix ACL infrastructure
  ext2/3/4: use generic posix ACL infrastructure
  btrfs: use generic posix ACL infrastructure
  fs: make posix_acl_create more useful
  fs: make posix_acl_chmod more useful
  ...

10 years agoCRISv10: Readd missing header
Jesper Nilsson [Tue, 28 Jan 2014 14:14:35 +0000 (15:14 +0100)]
CRISv10: Readd missing header

The svinto architecture header was mistakenly removed,
leading to a compile error.

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
10 years agoMerge branch 'akpm' (incoming from Andrew)
Linus Torvalds [Tue, 28 Jan 2014 05:17:55 +0000 (21:17 -0800)]
Merge branch 'akpm' (incoming from Andrew)

Merge misc updates from Andrew Morton:

 - a few hotfixes

 - dynamic-debug updates

 - ipc updates

 - various other sweepings off the factory floor

* akpm: (31 commits)
  firmware/google: drop 'select EFI' to avoid recursive dependency
  compat: fix sys_fanotify_mark
  checkpatch.pl: check for function declarations without arguments
  mm/migrate.c: fix setting of cpupid on page migration twice against normal page
  softirq: use const char * const for softirq_to_name, whitespace neatening
  softirq: convert printks to pr_<level>
  softirq: use ffs() in __do_softirq()
  kernel/kexec.c: use vscnprintf() instead of vsnprintf() in vmcoreinfo_append_str()
  splice: fix unexpected size truncation
  ipc: fix compat msgrcv with negative msgtyp
  ipc,msg: document barriers
  ipc: delete seq_max field in struct ipc_ids
  ipc: simplify sysvipc_proc_open() return
  ipc: remove useless return statement
  ipc: remove braces for single statements
  ipc: standardize code comments
  ipc: whitespace cleanup
  ipc: change kern_ipc_perm.deleted type to bool
  ipc: introduce ipc_valid_object() helper to sort out IPC_RMID races
  ipc/sem.c: avoid overflow of semop undo (semadj) value
  ...

10 years agoMerge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Linus Torvalds [Tue, 28 Jan 2014 05:11:26 +0000 (21:11 -0800)]
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc

Pull powerpc updates from Ben Herrenschmidt:
 "So here's my next branch for powerpc.  A bit late as I was on vacation
  last week.  It's mostly the same stuff that was in next already, I
  just added two patches today which are the wiring up of lockref for
  powerpc, which for some reason fell through the cracks last time and
  is trivial.

  The highlights are, in addition to a bunch of bug fixes:

   - Reworked Machine Check handling on kernels running without a
     hypervisor (or acting as a hypervisor).  Provides hooks to handle
     some errors in real mode such as TLB errors, handle SLB errors,
     etc...

   - Support for retrieving memory error information from the service
     processor on IBM servers running without a hypervisor and routing
     them to the memory poison infrastructure.

   - _PAGE_NUMA support on server processors

   - 32-bit BookE relocatable kernel support

   - FSL e6500 hardware tablewalk support

   - A bunch of new/revived board support

   - FSL e6500 deeper idle states and altivec powerdown support

  You'll notice a generic mm change here, it has been acked by the
  relevant authorities and is a pre-req for our _PAGE_NUMA support"

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (121 commits)
  powerpc: Implement arch_spin_is_locked() using arch_spin_value_unlocked()
  powerpc: Add support for the optimised lockref implementation
  powerpc/powernv: Call OPAL sync before kexec'ing
  powerpc/eeh: Escalate error on non-existing PE
  powerpc/eeh: Handle multiple EEH errors
  powerpc: Fix transactional FP/VMX/VSX unavailable handlers
  powerpc: Don't corrupt transactional state when using FP/VMX in kernel
  powerpc: Reclaim two unused thread_info flag bits
  powerpc: Fix races with irq_work
  Move precessing of MCE queued event out from syscall exit path.
  pseries/cpuidle: Remove redundant call to ppc64_runlatch_off() in cpu idle routines
  powerpc: Make add_system_ram_resources() __init
  powerpc: add SATA_MV to ppc64_defconfig
  powerpc/powernv: Increase candidate fw image size
  powerpc: Add debug checks to catch invalid cpu-to-node mappings
  powerpc: Fix the setup of CPU-to-Node mappings during CPU online
  powerpc/iommu: Don't detach device without IOMMU group
  powerpc/eeh: Hotplug improvement
  powerpc/eeh: Call opal_pci_reinit() on powernv for restoring config space
  powerpc/eeh: Add restore_config operation
  ...

10 years agoMerge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Linus Torvalds [Tue, 28 Jan 2014 05:03:39 +0000 (21:03 -0800)]
Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc

Pull powerpc mremap fix from Ben Herrenschmidt:
 "This is the patch that I had sent after -rc8 and which we decided to
  wait before merging.  It's based on a different tree than my -next
  branch (it needs some pre-reqs that were in -rc4 or so while my -next
  is based on -rc1) so I left it as a separate branch for your to pull.
  It's identical to the request I did 2 or 3 weeks back.

  This fixes crashes in mremap with THP on powerpc.

  The fix however requires a small change in the generic code.  It moves
  a condition into a helper we can override from the arch which is
  harmless, but it *also* slightly changes the order of the set_pmd and
  the withdraw & deposit, which should be fine according to Kirill (who
  wrote that code) but I agree -rc8 is a bit late...

  It was acked by Kirill and Andrew told me to just merge it via powerpc"

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc/thp: Fix crash on mremap

10 years agofirmware/google: drop 'select EFI' to avoid recursive dependency
Ard Biesheuvel [Tue, 28 Jan 2014 01:07:21 +0000 (17:07 -0800)]
firmware/google: drop 'select EFI' to avoid recursive dependency

The GOOGLE_SMI Kconfig symbol depends on DMI and selects EFI.  This
causes problems on other archs when introducing DMI support that depends
on EFI, as it results in a recursive dependency:

  arch/arm/Kconfig:1845:error: recursive dependency detected!
  arch/arm/Kconfig:1845: symbol DMI depends on EFI

Fix by changing the 'select EFI' to a 'depends on EFI'.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: David Rientjes <rientjes@google.com>
Acked-by: Mike Waychison <mikew@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agocompat: fix sys_fanotify_mark
Heiko Carstens [Tue, 28 Jan 2014 01:07:19 +0000 (17:07 -0800)]
compat: fix sys_fanotify_mark

Commit 91c2e0bcae72 ("unify compat fanotify_mark(2), switch to
COMPAT_SYSCALL_DEFINE") added a new unified compat fanotify_mark syscall
to be used by all architectures.

Unfortunately the unified version merges the split mask parameter in a
wrong way: the lower and higher word got swapped.

This was discovered with glibc's tst-fanotify test case.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Reported-by: Andreas Krebbel <krebbel@linux.vnet.ibm.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Acked-by: "David S. Miller" <davem@davemloft.net>
Acked-by: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: <stable@vger.kernel.org> [3.10+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agocheckpatch.pl: check for function declarations without arguments
Joe Perches [Tue, 28 Jan 2014 01:07:18 +0000 (17:07 -0800)]
checkpatch.pl: check for function declarations without arguments

Functions like this one are evil:

void foo()
{
...
}

Because these functions allow variadic arguments without
checking the arguments at all.

Original patch by Richard Weinberger.

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Borislav Petkov <bp@alien8.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agomm/migrate.c: fix setting of cpupid on page migration twice against normal page
Wanpeng Li [Tue, 28 Jan 2014 01:07:17 +0000 (17:07 -0800)]
mm/migrate.c: fix setting of cpupid on page migration twice against normal page

Commit 7851a45cd3f6 ("mm: numa: Copy cpupid on page migration") copies
over the cpupid at page migration time.  It is unnecessary to set it
again in alloc_misplaced_dst_page().

Signed-off-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Acked-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agosoftirq: use const char * const for softirq_to_name, whitespace neatening
Joe Perches [Tue, 28 Jan 2014 01:07:16 +0000 (17:07 -0800)]
softirq: use const char * const for softirq_to_name, whitespace neatening

Reduce data size a little.
Reduce checkpatch noise.

$ size kernel/softirq.o*
   text    data     bss     dec     hex filename
  11554    6013    4008   21575    5447 kernel/softirq.o.new
  11474    6093    4008   21575    5447 kernel/softirq.o.old

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agosoftirq: convert printks to pr_<level>
Joe Perches [Tue, 28 Jan 2014 01:07:15 +0000 (17:07 -0800)]
softirq: convert printks to pr_<level>

Use a more current logging style.

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agosoftirq: use ffs() in __do_softirq()
Joe Perches [Tue, 28 Jan 2014 01:07:14 +0000 (17:07 -0800)]
softirq: use ffs() in __do_softirq()

Possible speed improvement of __do_softirq() by using ffs() instead of
using a while loop with an & 1 test then single bit shift.

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agokernel/kexec.c: use vscnprintf() instead of vsnprintf() in vmcoreinfo_append_str()
Chen Gang [Tue, 28 Jan 2014 01:07:13 +0000 (17:07 -0800)]
kernel/kexec.c: use vscnprintf() instead of vsnprintf() in vmcoreinfo_append_str()

vsnprintf() may let 'r' larger than sizeof(buf), in this case, if 'r' is
also less than "vmcoreinfo_max_size - vmcoreinfo_size" (left size of
destination buffer), next memcpy() will read the unexpected addresses.

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agosplice: fix unexpected size truncation
Xiao Guangrong [Tue, 28 Jan 2014 01:07:12 +0000 (17:07 -0800)]
splice: fix unexpected size truncation

@splice_desc.total_len is 32 bit(unsigned int) which is used to store the
size passed from userspace which is 64 bit(size_t) so that the size is
unexpectedly truncated

That means vmsplice can not work if the size passed from userspace is >=
4G, for example, we noticed in vmsplice, splice-reader does not do
anything and splice-writer is waiting for available buffer forever if the
size is 4G

Fix it by extending @splice_desc.total_len to 64 bits as well

Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoipc: fix compat msgrcv with negative msgtyp
Mateusz Guzik [Tue, 28 Jan 2014 01:07:11 +0000 (17:07 -0800)]
ipc: fix compat msgrcv with negative msgtyp

Compat function takes msgtyp argument as u32 and passes it down to
do_msgrcv which results in casting to long, thus the sign is lost and we
get a big positive number instead.

Cast the argument to signed type before passing it down.

Signed-off-by: Mateusz Guzik <mguzik@redhat.com>
Reported-by: Gabriellla Schmidt <gsc@bruker.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Davidlohr Bueso <davidlohr@hp.com>
Cc: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoipc,msg: document barriers
Davidlohr Bueso [Tue, 28 Jan 2014 01:07:10 +0000 (17:07 -0800)]
ipc,msg: document barriers

Both expunge_all() and pipeline_send() rely on both a nil msg value and
a full barrier to guarantee the correct ordering when waking up a task.

While its counterpart at the receiving end is well documented for the
lockless recv algorithm, we still need to document these specific
smp_mb() calls.

[akpm@linux-foundation.org: fix typo, per Mike]
[akpm@linux-foundation.org: mroe tpyos]
Signed-off-by: Davidlohr Bueso <davidlohr@hp.com>
Cc: Aswin Chandramouleeswaran <aswin@hp.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoipc: delete seq_max field in struct ipc_ids
Davidlohr Bueso [Tue, 28 Jan 2014 01:07:09 +0000 (17:07 -0800)]
ipc: delete seq_max field in struct ipc_ids

This field is only used to reset the ids seq number if it exceeds the
smaller of INT_MAX/SEQ_MULTIPLIER and USHRT_MAX, and can therefore be
moved out of the structure and into its own macro.  Since each
ipc_namespace contains a table of 3 pointers to struct ipc_ids we can
save space in instruction text:

   text    data     bss     dec     hex filename
  56232    2348      24   58604    e4ec ipc/built-in.o
  56216    2348      24   58588    e4dc ipc/built-in.o-after

Signed-off-by: Davidlohr Bueso <davidlohr@hp.com>
Reviewed-by: Jonathan Gonzalez <jgonzalez@linets.cl>
Cc: Aswin Chandramouleeswaran <aswin@hp.com>
Cc: Rik van Riel <riel@redhat.com>
Acked-by: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoipc: simplify sysvipc_proc_open() return
Davidlohr Bueso [Tue, 28 Jan 2014 01:07:08 +0000 (17:07 -0800)]
ipc: simplify sysvipc_proc_open() return

Get rid of silly/useless label jumping.

Signed-off-by: Davidlohr Bueso <davidlohr@hp.com>
Cc: Aswin Chandramouleeswaran <aswin@hp.com>
Cc: Rik van Riel <riel@redhat.com>
Acked-by: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoipc: remove useless return statement
Davidlohr Bueso [Tue, 28 Jan 2014 01:07:07 +0000 (17:07 -0800)]
ipc: remove useless return statement

Only found in ipc_rmid().

Signed-off-by: Davidlohr Bueso <davidlohr@hp.com>
Cc: Aswin Chandramouleeswaran <aswin@hp.com>
Cc: Rik van Riel <riel@redhat.com>
Acked-by: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoipc: remove braces for single statements
Davidlohr Bueso [Tue, 28 Jan 2014 01:07:06 +0000 (17:07 -0800)]
ipc: remove braces for single statements

Deal with checkpatch messages:
     WARNING: braces {} are not necessary for single statement blocks

Signed-off-by: Davidlohr Bueso <davidlohr@hp.com>
Cc: Aswin Chandramouleeswaran <aswin@hp.com>
Cc: Rik van Riel <riel@redhat.com>
Acked-by: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoipc: standardize code comments
Davidlohr Bueso [Tue, 28 Jan 2014 01:07:05 +0000 (17:07 -0800)]
ipc: standardize code comments

IPC commenting style is all over the place, *specially* in util.c.  This
patch orders things a bit.

Signed-off-by: Davidlohr Bueso <davidlohr@hp.com>
Cc: Aswin Chandramouleeswaran <aswin@hp.com>
Cc: Rik van Riel <riel@redhat.com>
Acked-by: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoipc: whitespace cleanup
Manfred Spraul [Tue, 28 Jan 2014 01:07:04 +0000 (17:07 -0800)]
ipc: whitespace cleanup

The ipc code does not adhere the typical linux coding style.
This patch fixes lots of simple whitespace errors.

- mostly autogenerated by
  scripts/checkpatch.pl -f --fix \
--types=pointer_location,spacing,space_before_tab
- one manual fixup (keep structure members tab-aligned)
- removal of additional space_before_tab that were not found by --fix

Tested with some of my msg and sem test apps.

Andrew: Could you include it in -mm and move it towards Linus' tree?

Signed-off-by: Manfred Spraul <manfred@colorfullife.com>
Suggested-by: Li Bin <huawei.libin@huawei.com>
Cc: Joe Perches <joe@perches.com>
Acked-by: Rafael Aquini <aquini@redhat.com>
Cc: Davidlohr Bueso <davidlohr@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoipc: change kern_ipc_perm.deleted type to bool
Rafael Aquini [Tue, 28 Jan 2014 01:07:02 +0000 (17:07 -0800)]
ipc: change kern_ipc_perm.deleted type to bool

struct kern_ipc_perm.deleted is meant to be used as a boolean toggle, and
the changes introduced by this patch are just to make the case explicit.

Signed-off-by: Rafael Aquini <aquini@redhat.com>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Greg Thelen <gthelen@google.com>
Acked-by: Davidlohr Bueso <davidlohr@hp.com>
Cc: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoipc: introduce ipc_valid_object() helper to sort out IPC_RMID races
Rafael Aquini [Tue, 28 Jan 2014 01:07:01 +0000 (17:07 -0800)]
ipc: introduce ipc_valid_object() helper to sort out IPC_RMID races

After the locking semantics for the SysV IPC API got improved, a couple
of IPC_RMID race windows were opened because we ended up dropping the
'kern_ipc_perm.deleted' check performed way down in ipc_lock().  The
spotted races got sorted out by re-introducing the old test within the
racy critical sections.

This patch introduces ipc_valid_object() to consolidate the way we cope
with IPC_RMID races by using the same abstraction across the API
implementation.

Signed-off-by: Rafael Aquini <aquini@redhat.com>
Acked-by: Rik van Riel <riel@redhat.com>
Acked-by: Greg Thelen <gthelen@google.com>
Reviewed-by: Davidlohr Bueso <davidlohr@hp.com>
Cc: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoipc/sem.c: avoid overflow of semop undo (semadj) value
Petr Mladek [Tue, 28 Jan 2014 01:07:00 +0000 (17:07 -0800)]
ipc/sem.c: avoid overflow of semop undo (semadj) value

When trying to understand semop code, I found a small mistake in the check
for semadj (undo) value overflow.  The new undo value is not stored
immediately and next potential checks are done against the old value.

The failing scenario is not much practical.  One semop call has to do more
operations on the same semaphore.  Also semval and semadj must have
different values, so there has to be some operations without SEM_UNDO
flag.  For example:

struct sembuf depositor_op[1];
struct sembuf collector_op[2];

depositor_op[0].sem_num = 0;
depositor_op[0].sem_op = 20000;
depositor_op[0].sem_flg = 0;

collector_op[0].sem_num = 0;
collector_op[0].sem_op = -10000;
collector_op[0].sem_flg = SEM_UNDO;
collector_op[1].sem_num = 0;
collector_op[1].sem_op = -10000;
collector_op[1].sem_flg = SEM_UNDO;

if (semop(semid, depositor_op, 1) == -1)
{ perror("Failed to do 1st deposit"); return 1; }

if (semop(semid, collector_op, 2) == -1)
{ perror("Failed to do 1st collect"); return 1; }

if (semop(semid, depositor_op, 1) == -1)
{ perror("Failed to do 2nd deposit"); return 1; }

if (semop(semid, collector_op, 2) == -1)
{ perror("Failed to do 2nd collect"); return 1; }

return 0;

It passes without error now but the semadj value has overflown in the 2nd
collector operation.

[akpm@linux-foundation.org: restore lessened scope of local `undo']
[davidlohr@hp.com: correct header comment for perform_atomic_semop]
Signed-off-by: Petr Mladek <pmladek@suse.cz>
Acked-by: Davidlohr Bueso <davidlohr@hp.com>
Acked-by: Manfred Spraul <manfred@colorfullife.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Davidlohr Bueso <davidlohr@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoinit/main.c: remove unused declaractions of mca_init() and sbus_init()
Kang Hu [Tue, 28 Jan 2014 01:07:00 +0000 (17:07 -0800)]
init/main.c: remove unused declaractions of mca_init() and sbus_init()

mca_init() no longer exists.
sbus_init() is defined in arch/sparc/kernel/sbus.c and is a subsys_initcall.
both are not needed in main.c any more.

Signed-off-by: Kang Hu <hukangustc@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agodynamic_debug: replace obselete simple_strtoul() with kstrtouint()
Andrey Ryabinin [Tue, 28 Jan 2014 01:06:59 +0000 (17:06 -0800)]
dynamic_debug: replace obselete simple_strtoul() with kstrtouint()

Signed-off-by: Andrey Ryabinin <a.ryabinin@samsung.com>
Cc: Jason Baron <jbaron@akamai.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agodynamic_debug: fix ddebug_parse_query()
Andrey Ryabinin [Tue, 28 Jan 2014 01:06:58 +0000 (17:06 -0800)]
dynamic_debug: fix ddebug_parse_query()

This fixes following scenario:

  $ echo 'file dynamic_debug.c line 1-123 +p' > /sys/kernel/debug/dynamic_debug/control
  -bash: echo: write error: Invalid argument
  $ dmesg | grep dynamic_debug
  dynamic_debug:ddebug_parse_query: last-line:123 < 1st-line:1
  dynamic_debug:ddebug_parse_query: query parse failed

Signed-off-by: Andrey Ryabinin <a.ryabinin@samsung.com>
Cc: Jason Baron <jbaron@akamai.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agodynamic_debug: remove wrong error message
Andrey Ryabinin [Tue, 28 Jan 2014 01:06:57 +0000 (17:06 -0800)]
dynamic_debug: remove wrong error message

parse_lineno() returns either negative error code or zero.  We don't
need to print something here because if parse_lineno fails it will print
error message.

Signed-off-by: Andrey Ryabinin <a.ryabinin@samsung.com>
Cc: Jason Baron <jbaron@akamai.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoocfs2: do not log ENOENT in unlink()
Xiaowei.Hu [Tue, 28 Jan 2014 01:06:56 +0000 (17:06 -0800)]
ocfs2: do not log ENOENT in unlink()

Suppress log message like this: (open_delete,8328,0):ocfs2_unlink:951
ERROR: status = -2

Orabug:17445485

Signed-off-by: Xiaowei Hu <xiaowei.hu@oracle.com>
Cc: Joe Jin <joe.jin@oracle.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agomm: bring back /sys/kernel/mm
Hugh Dickins [Tue, 28 Jan 2014 01:06:55 +0000 (17:06 -0800)]
mm: bring back /sys/kernel/mm

Commit da29bd36224b ("mm/mm_init.c: make creation of the mm_kobj happen
earlier than device_initcall") changed to pure_initcall(mm_sysfs_init).

That's too early: mm_sysfs_init() depends on core_initcall(ksysfs_init)
to have made the kernel_kobj directory "kernel" in which to create "mm".

Make it postcore_initcall(mm_sysfs_init).  We could use core_initcall(),
and depend upon Makefile link order kernel/ mm/ fs/ ipc/ security/ ...
as core_initcall(debugfs_init) and core_initcall(securityfs_init) do;
but better not.

Signed-off-by: Hugh Dickins <hughd@google.com>
Acked-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoarch/unicore32/kernel/early_printk.c:setup_early_printk: missing initialization
Heinrich Schuchardt [Tue, 28 Jan 2014 01:06:54 +0000 (17:06 -0800)]
arch/unicore32/kernel/early_printk.c:setup_early_printk: missing initialization

It is based on uninitialized value keep_early.  This leads to
unpredictable result.

[akpm@linux-foundation.org: simplify code]
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoRevert "mm/vmalloc: interchage the implementation of vmalloc_to_{pfn,page}"
malc [Tue, 28 Jan 2014 01:06:53 +0000 (17:06 -0800)]
Revert "mm/vmalloc: interchage the implementation of vmalloc_to_{pfn,page}"

Revert commit ece86e222db4, which was intended as a small performance
improvement.

Despite the claim that the patch doesn't introduce any functional
changes in fact it does.

The "no page" path behaves different now.  Originally, vmalloc_to_page
might return NULL under some conditions, with new implementation it
returns pfn_to_page(0) which is not the same as NULL.

Simple test shows the difference.

test.c

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/vmalloc.h>
#include <linux/mm.h>

int __init myi(void)
{
struct page *p;
void *v;

v = vmalloc(PAGE_SIZE);
/* trigger the "no page" path in vmalloc_to_page*/
vfree(v);

p = vmalloc_to_page(v);

pr_err("expected val = NULL, returned val = %p", p);

return -EBUSY;
}

void __exit mye(void)
{

}
module_init(myi)
module_exit(mye)

Before interchange:
expected val = NULL, returned val =   (null)

After interchange:
expected val = NULL, returned val = c7ebe000

Signed-off-by: Vladimir Murzin <murzin.v@gmail.com>
Cc: Jianyu Zhan <nasa4836@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agomemblock: don't silently align size in memblock_virt_alloc()
Yinghai Lu [Tue, 28 Jan 2014 01:06:52 +0000 (17:06 -0800)]
memblock: don't silently align size in memblock_virt_alloc()

In original __alloc_memory_core_early() for bootmem wrapper, we do not
align size silently.

We should not do that, as later free with old size will leave some range
not freed.

It's obvious that code is copied from memblock_base_nid(), and that code
is wrong for the same reason.

Also remove that in memblock_alloc_base.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agox86: revert wrong memblock current limit setting
Yinghai Lu [Tue, 28 Jan 2014 01:06:50 +0000 (17:06 -0800)]
x86: revert wrong memblock current limit setting

Dave reported big numa system booting is broken.

It turns out that commit 5b6e529521d3 ("x86: memblock: set current limit
to max low memory address") sets the limit to low wrongly.

max_low_pfn_mapped is different from max_pfn_mapped.
max_low_pfn_mapped is always under 4G.

That will memblock_alloc_nid all go under 4G.

Revert 5b6e529521d3 to fix a no-boot regression which was triggered by
457ff1de2d24 ("lib/swiotlb.c: use memblock apis for early memory
allocations").

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Reported-by: Dave Hansen <dave.hansen@intel.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agomemblock, nobootmem: add memblock_virt_alloc_low()
Yinghai Lu [Tue, 28 Jan 2014 01:06:49 +0000 (17:06 -0800)]
memblock, nobootmem: add memblock_virt_alloc_low()

The new memblock_virt APIs are used to replaced old bootmem API.

We need to allocate page below 4G for swiotlb.

That should fix regression on Andrew's system that is using swiotlb.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agopowerpc: Implement arch_spin_is_locked() using arch_spin_value_unlocked()
Michael Ellerman [Wed, 15 Jan 2014 07:14:29 +0000 (18:14 +1100)]
powerpc: Implement arch_spin_is_locked() using arch_spin_value_unlocked()

At a glance these are just the inverse of each other. The one subtlety
is that arch_spin_value_unlocked() takes the lock by value, rather than
as a pointer, which is important for the lockref code.

On the other hand arch_spin_is_locked() doesn't really care, so
implement it in terms of arch_spin_value_unlocked().

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
10 years agopowerpc: Add support for the optimised lockref implementation
Michael Ellerman [Wed, 15 Jan 2014 07:14:28 +0000 (18:14 +1100)]
powerpc: Add support for the optimised lockref implementation

This commit adds the architecture support required to enable the
optimised implementation of lockrefs.

That's as simple as defining arch_spin_value_unlocked() and selecting
the Kconfig option.

We also define cmpxchg64_relaxed(), because the lockref code does not
need the cmpxchg to have barrier semantics.

Using Linus' test case[1] on one system I see a 4x improvement for the
basic enablement, and a further 1.3x for cmpxchg64_relaxed(), for a
total of 5.3x vs the baseline.

On another system I see more like 2x improvement.

[1]: http://marc.info/?l=linux-fsdevel&m=137782380714721&w=4

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
10 years agoleds: s3c24xx: Remove hardware.h inclusion
Sachin Kamat [Fri, 3 Jan 2014 06:30:04 +0000 (22:30 -0800)]
leds: s3c24xx: Remove hardware.h inclusion

The contents of this header file is not referenced in the led driver.
Remove its inclusion. While at it, re-arrange the headers as per the
category.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
10 years agoleds: replace list_for_each with list_for_each_entry
ZHAO Gang [Sat, 28 Dec 2013 15:00:26 +0000 (07:00 -0800)]
leds: replace list_for_each with list_for_each_entry

Use the more convenient macro.

Signed-off-by: ZHAO Gang <gamerh2o@gmail.com>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
10 years agoleds: kirkwood: Cleanup in header files
Sachin Kamat [Thu, 2 Jan 2014 09:58:45 +0000 (01:58 -0800)]
leds: kirkwood: Cleanup in header files

Commit c02cecb92ed4 ("ARM: orion: move platform_data definitions")
moved the files to the current location but forgot to remove the pointer
to its previous location. Clean it up. While at it also change the header
file protection macros appropriately.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
10 years agoleds: pwm: Remove a warning on non-DT platforms
Olof Johansson [Thu, 12 Dec 2013 00:11:42 +0000 (16:11 -0800)]
leds: pwm: Remove a warning on non-DT platforms

This removes a warning on non-DT-enabled platforms:

drivers/leds/leds-pwm.c: In function 'led_pwm_create_of':
drivers/leds/leds-pwm.c:88:22: warning: unused variable 'node'

Really caused by the local variable that is assigned to and then never
used. Just do away with the local var, it's not needed.

Technically this code path can never be entered without DT enabled,
since there's an earlier check about number of children in the calling
function, but the compiler can't see that.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
10 years agoleds: leds-pwm: fix duty time overflow.
Xiubo Li [Wed, 11 Dec 2013 09:19:42 +0000 (01:19 -0800)]
leds: leds-pwm: fix duty time overflow.

Overflow maybe occurs when calculates the duty time. For instance,
the period time is 990000000ns, and the max_brightness is 127, when
setting the brightness to 12, the duty value will be 25906026ns, but
it should be 93543307ns.

Signed-off-by: Bryan Wu <cooloney@gmail.com>
10 years agoleds: leds-mc13783: Remove unneeded mc13xxx_{un}lock
Alexander Shiyan [Sat, 7 Dec 2013 06:22:19 +0000 (22:22 -0800)]
leds: leds-mc13783: Remove unneeded mc13xxx_{un}lock

LED registers are used only in this driver, so no additional
locking is needed. Read-Modify-Write cycle in workqueue is already
protected by regmap.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
10 years agoleds: leds-mc13783: Remove duplicate field in platform data
Alexander Shiyan [Sat, 7 Dec 2013 06:22:18 +0000 (22:22 -0800)]
leds: leds-mc13783: Remove duplicate field in platform data

LED platform data are overwhelmed by excessive field "max_cur"
which just replicates few bits of "led_control" field.
This patch removes this field and adds a definition for the
current settings in the header.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
10 years agodrivers: leds: leds-tca6507: check CONFIG_GPIOLIB whether defined for 'gpio_base'
Chen Gang [Mon, 9 Dec 2013 04:41:37 +0000 (20:41 -0800)]
drivers: leds: leds-tca6507: check CONFIG_GPIOLIB whether defined for 'gpio_base'

Need check CONFIG_GPIOLIB whether defined, just like another area has
done within this file. Or can not pass compiling when CONFIG_GPIOLIB
disabled.

The related error (with allmodconfig for metag):

    CC [M]  drivers/leds/leds-tca6507.o
  drivers/leds/leds-tca6507.c: In function 'tca6507_led_dt_init':
  drivers/leds/leds-tca6507.c:731: error: 'struct tca6507_platform_data' has no member named 'gpio_base'

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
10 years agoleds: lp5523: Support LED MUX configuration on running a pattern
Milo Kim [Thu, 21 Nov 2013 06:14:34 +0000 (22:14 -0800)]
leds: lp5523: Support LED MUX configuration on running a pattern

There are two ways to run a pattern in LP5523.
One is using legacy sysfs files such as 'enginex_mode','enginex_load' and
'enginex_leds'. ('x' is from 1 to 3).
Among them, 'enginex_leds' are used for selecting specific LED channel MUX.
(MUX means which LEDs are used for running a pattern from LED 1 to 9.)

The other way is using the firmware interface.
In this mode, the default LED MUX strings are used.
In other words, LED MUX is not configurable on the fly.

This patch enables dynamic LED MUX configuration when the firmware is loaded.
By accessing the sysfs file 'enginex_leds', the LED channels can be configured.
To synchronize the operation mode, each engine mode should be set to 'LOAD'.

The documentation is updated as well.

Cc: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Milo Kim <milo.kim@ti.com>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
10 years agoleds: lp5521/5523: Fix multiple engine usage bug
Milo Kim [Thu, 21 Nov 2013 06:13:34 +0000 (22:13 -0800)]
leds: lp5521/5523: Fix multiple engine usage bug

Whenever the engine is loaded by the user-application, the operation mode is
reset first. But it has a problem in case of multiple engine used because
previous engine settings are cleared.
The driver should update not whole 8bits but each engine bit by masking.

On the other hands, whole engines should be reset when the driver is unloaded
and on initializing the LP5523 driver.
So, new functions are used for this handling - lp5521/5523_stop_all_engines().

Cc: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Milo Kim <milo.kim@ti.com>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
10 years agoLEDS: tca6507 - fix up some comments.
NeilBrown [Wed, 13 Nov 2013 05:52:43 +0000 (21:52 -0800)]
LEDS: tca6507 - fix up some comments.

In particular fix the capitalisation of GPIO and LED and
correct TCA6507_MAKE_CPIO, but also rewrite the comment about
platform-data to include reference to devicetree.

Also re-wrap comments to fit 80 columns.

Reported-by: Bryan Wu <cooloney@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
10 years agoLEDS: tca6507: add device-tree support for GPIO configuration.
NeilBrown [Fri, 1 Nov 2013 02:41:20 +0000 (19:41 -0700)]
LEDS: tca6507: add device-tree support for GPIO configuration.

The 7 lines driven by the TCA6507 can either drive LEDs or act as output-only
GPIOs.

To make this distinction in devicetree we use the "compatible" property.

If the device attached to a line is "compatible" with "gpio", we treat it
like a GPIO.  If it is "compatible" with "led" (or if no "compatible" value
is set) we treat it like an LED.

(cooloney@gmail.com: fix typo in the subject)

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
10 years agoLEDS: tca6507 - fix bugs in parsing of device-tree configuration.
NeilBrown [Fri, 1 Nov 2013 02:33:45 +0000 (19:33 -0700)]
LEDS: tca6507 - fix bugs in parsing of device-tree configuration.

1/ The led_info array must be allocated to allow the full number
  of LEDs even if not all are present.  The array maybe be sparsely
  filled but it is indexed by device address so we must at least
  allocate as many slots as the highest address used.  It is easiest
  just to allocate all 7.

2/ range check the 'reg' value properly.

3/ led.flags must be initialised to zero, else all leds could
   be treated as GPIOs (depending on what happens to be on the stack).

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
10 years agolibceph: support CEPH_FEATURE_OSD_CACHEPOOL feature
Ilya Dryomov [Mon, 27 Jan 2014 15:40:20 +0000 (17:40 +0200)]
libceph: support CEPH_FEATURE_OSD_CACHEPOOL feature

Announce our (limited, see previous commit) support for CACHEPOOL
feature.

Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
10 years agolibceph: follow redirect replies from osds
Ilya Dryomov [Mon, 27 Jan 2014 15:40:20 +0000 (17:40 +0200)]
libceph: follow redirect replies from osds

Follow redirect replies from osds, for details see ceph.git commit
fbbe3ad1220799b7bb00ea30fce581c5eadaf034.

v1 (current) version of redirect reply consists of oloc and oid, which
expands to pool, key, nspace, hash and oid.  However, server-side code
that would populate anything other than pool doesn't exist yet, and
hence this commit adds support for pool redirects only.  To make sure
that future server-side updates don't break us, we decode all fields
and, if any of key, nspace, hash or oid have a non-default value, error
out with "corrupt osd_op_reply ..." message.

Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
10 years agolibceph: rename ceph_osd_request::r_{oloc,oid} to r_base_{oloc,oid}
Ilya Dryomov [Mon, 27 Jan 2014 15:40:20 +0000 (17:40 +0200)]
libceph: rename ceph_osd_request::r_{oloc,oid} to r_base_{oloc,oid}

Rename ceph_osd_request::r_{oloc,oid} to r_base_{oloc,oid} before
introducing r_target_{oloc,oid} needed for redirects.

Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
10 years agolibceph: follow {read,write}_tier fields on osd request submission
Ilya Dryomov [Mon, 27 Jan 2014 15:40:19 +0000 (17:40 +0200)]
libceph: follow {read,write}_tier fields on osd request submission

Overwrite ceph_osd_request::r_oloc.pool with read_tier for read ops and
write_tier for write and read+write ops (aka basic tiering support).
{read,write}_tier are part of pg_pool_t since v9.  This commit bumps
our pg_pool_t decode compat version from v7 to v9, all new fields
except for {read,write}_tier are ignored.

Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
10 years agolibceph: add ceph_pg_pool_by_id()
Ilya Dryomov [Mon, 27 Jan 2014 15:40:19 +0000 (17:40 +0200)]
libceph: add ceph_pg_pool_by_id()

"Lookup pool info by ID" function is hidden in osdmap.c.  Expose it to
the rest of libceph.

Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
10 years agolibceph: CEPH_OSD_FLAG_* enum update
Ilya Dryomov [Mon, 27 Jan 2014 15:40:19 +0000 (17:40 +0200)]
libceph: CEPH_OSD_FLAG_* enum update

Update CEPH_OSD_FLAG_* enum.  (We need CEPH_OSD_FLAG_IGNORE_OVERLAY to
support tiering).

Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
10 years agolibceph: replace ceph_calc_ceph_pg() with ceph_oloc_oid_to_pg()
Ilya Dryomov [Mon, 27 Jan 2014 15:40:19 +0000 (17:40 +0200)]
libceph: replace ceph_calc_ceph_pg() with ceph_oloc_oid_to_pg()

Switch ceph_calc_ceph_pg() to new oloc and oid abstractions and rename
it to ceph_oloc_oid_to_pg() to make its purpose more clear.

Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
10 years agolibceph: introduce and start using oid abstraction
Ilya Dryomov [Mon, 27 Jan 2014 15:40:18 +0000 (17:40 +0200)]
libceph: introduce and start using oid abstraction

In preparation for tiering support, which would require having two
(base and target) object names for each osd request and also copying
those names around, introduce struct ceph_object_id (oid) and a couple
helpers to facilitate those copies and encapsulate the fact that object
name is not necessarily a NUL-terminated string.

Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
10 years agolibceph: rename MAX_OBJ_NAME_SIZE to CEPH_MAX_OID_NAME_LEN
Ilya Dryomov [Mon, 27 Jan 2014 15:40:18 +0000 (17:40 +0200)]
libceph: rename MAX_OBJ_NAME_SIZE to CEPH_MAX_OID_NAME_LEN

In preparation for adding oid abstraction, rename MAX_OBJ_NAME_SIZE to
CEPH_MAX_OID_NAME_LEN.

Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
10 years agolibceph: move ceph_file_layout helpers to ceph_fs.h
Ilya Dryomov [Mon, 27 Jan 2014 15:40:18 +0000 (17:40 +0200)]
libceph: move ceph_file_layout helpers to ceph_fs.h

Move ceph_file_layout helper macros and inline functions to ceph_fs.h.

Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
10 years agolibceph: start using oloc abstraction
Ilya Dryomov [Mon, 27 Jan 2014 15:40:18 +0000 (17:40 +0200)]
libceph: start using oloc abstraction

Instead of relying on pool fields in ceph_file_layout (for mapping) and
ceph_pg (for enconding), start using ceph_object_locator (oloc)
abstraction.  Note that userspace oloc currently consists of pool, key,
nspace and hash fields, while this one contains only a pool.  This is
OK, because at this point we only send (i.e. encode) olocs and never
have to receive (i.e. decode) them.

This makes keeping a copy of ceph_file_layout in every osd request
unnecessary, so ceph_osd_request::r_file_layout field is nuked.

Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
10 years agoclk: sort Makefile
Mike Turquette [Mon, 27 Jan 2014 21:04:49 +0000 (13:04 -0800)]
clk: sort Makefile

Signed-off-by: Mike Turquette <mturquette@linaro.org>
10 years agoclk: sunxi: fix overflow when setting up divided factors
Emilio López [Sat, 25 Jan 2014 01:32:41 +0000 (22:32 -0300)]
clk: sunxi: fix overflow when setting up divided factors

Currently, we are allocating space for two pointers, when we actually
may need to store three of them (two divisors plus the original clock).
Fix this, and change sizeof(type) to sizeof(*var) to keep checkpatch.pl
happy.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Emilio López <emilio@elopez.com.ar>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
10 years agoclk: Export more clk-provider functions
Stephen Boyd [Sat, 18 Jan 2014 03:47:17 +0000 (19:47 -0800)]
clk: Export more clk-provider functions

Allow drivers to be compiled as modules by exporting more clock
provider functions.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
10 years agodt-bindings: qcom: Fix warning with duplicate dt define
Stephen Boyd [Sat, 18 Jan 2014 01:05:19 +0000 (17:05 -0800)]
dt-bindings: qcom: Fix warning with duplicate dt define

arch/arm/boot/dts/include/dt-bindings/clock/qcom,mmcc-msm8974.h:60:0:
warning: "RBCPR_CLK_SRC" redefined

Rename this to MMSS_RBCPR_CLK_SRC to avoid conflicts with the
RBCPR clock in the gcc header.

Reported-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
10 years agoclk: si5351: remove variant from platform_data
Sebastian Hesselbarth [Sat, 25 Jan 2014 20:48:31 +0000 (21:48 +0100)]
clk: si5351: remove variant from platform_data

Commit 9807362bfe1748d9bb48eecb9261f1b1aaafea1c
  "clk: si5351: declare all device IDs for module loading"
removed the common i2c_device_id and introduced new ones for each variant
of the clock generator. Instead of exploiting that information in the driver,
it still depends on platform_data passing the chips .variant.

This removes the now redundant .variant from the platform_data and puts it in
i2c_device_id's .driver_data instead.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
10 years agoMerge tag 'trace-fixes-3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt...
Linus Torvalds [Mon, 27 Jan 2014 16:22:30 +0000 (08:22 -0800)]
Merge tag 'trace-fixes-3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing fixes from Steven Rostedt:
 "The first two patches fix the debugfs README file to reflect better
  the new features added to 3.14.

  The third patch is a minor bugfix to the trace_puts() functions that
  will crash the system if a developer adds one before the tracing
  system is setup.  It also affects trace_printk() if it has no
  arguments, as the code will convert it to a trace_puts() as well.

  Note, this bug will not affect unmodified kernels, as trace_printk()
  and trace_puts() should only be used by developers for testing"

* tag 'trace-fixes-3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tracing: Check if tracing is enabled in trace_puts()
  tracing: Fix formatting of trace README file
  tracing/README: Add event file usage to tracing mini-HOWTO

10 years agoMerge tag 'stable/for-linus-3.14-rc0-tag' of git://git.kernel.org/pub/scm/linux/kerne...
Linus Torvalds [Mon, 27 Jan 2014 16:17:09 +0000 (08:17 -0800)]
Merge tag 'stable/for-linus-3.14-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb

Pull swiotlb bug-fixes from Konrad Rzeszutek Wilk:
 - Don't DoS with 'swiotlb is full' message.
 - Documentation update.

* tag 'stable/for-linus-3.14-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb:
  swiotlb: Don't DoS us with 'swiotlb buffer is full' (v2)
  swiotlb: update format

10 years agoMerge tag 'pwm/for-3.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry...
Linus Torvalds [Mon, 27 Jan 2014 16:15:51 +0000 (08:15 -0800)]
Merge tag 'pwm/for-3.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm

Pull pwm changes from Thierry Reding:
 "The patches for this release cycle include various enhancements
  (device tree support, better compile coverage, ...) for existing
  drivers.  There is a new driver for Atmel SoCs.

  Various drivers as well as the sysfs support received minor fixes and
  cleanups"

* tag 'pwm/for-3.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
  pwm: tiecap: Remove duplicate put_sync call
  pwm: tiehrpwm: use dev_err() instead of pr_err()
  pwm: pxa: remove unnecessary space before tabs
  pwm: ep93xx: split module author names
  pwm: use seq_puts() instead of seq_printf()
  pwm: atmel-pwm: Do not unprepare clock after successful registration
  of: Add Atmel PWM controller device tree binding
  pwm: atmel-pwm: Add Atmel PWM controller driver
  backlight: pwm_bl: Remove error message upon devm_kzalloc() failure
  pwm: pca9685: depends on I2C rather than REGMAP_I2C
  pwm: renesas-tpu: Enable driver compilation with COMPILE_TEST
  pwm: jz4740: Use devm_clk_get()
  pwm: jz4740: Pass device to clk_get()
  pwm: sysfs: Convert to use ATTRIBUTE_GROUPS macro
  pwm: pxa: Add device tree support

10 years agoMerge tag 'firewire-updates' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee139...
Linus Torvalds [Mon, 27 Jan 2014 16:14:08 +0000 (08:14 -0800)]
Merge tag 'firewire-updates' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394

Pull firewire updates from Stefan Richter:
 "IEEE 1394 (FireWire) subsystem changes:

   - make remote debugging over 1394 a runtime option instead of a
     buildtime option
   - extend remote debug access past the 4 GB barrier on respectively
     capable hardware
   - documentation update"

* tag 'firewire-updates' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394:
  firewire: Enable remote DMA above 4 GB
  firewire: ohci: Turn remote DMA support into a module parameter
  Documentation/: update FireWire debugging documentation

10 years agoMerge tag 'cris-for-3.14' of git://jni.nu/cris
Linus Torvalds [Mon, 27 Jan 2014 16:12:20 +0000 (08:12 -0800)]
Merge tag 'cris-for-3.14' of git://jni.nu/cris

Pull cris changes from Jesper Nilsson:
 "Mostly removal of deprecated or old code, but also a long promised
  update of the CRIS syscalls"

* tag 'cris-for-3.14' of git://jni.nu/cris:
  Drop code for CRISv10 CPU simulator
  Cleanup whitespace, remove old author tag
  CRIS: Add missing syscalls
  cris: sync_serial: remove interruptible_sleep_on
  cris: remove deprecated IRQF_DISABLED

10 years agomicroblaze: Add missing v8.50.a version
Michal Simek [Fri, 22 Nov 2013 08:01:10 +0000 (09:01 +0100)]
microblaze: Add missing v8.50.a version

Add PVR value for MB 8.50.a.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
10 years agomicroblaze: Fix missing bracket in printk
Michal Simek [Tue, 19 Nov 2013 13:27:33 +0000 (14:27 +0100)]
microblaze: Fix missing bracket in printk

The error was introduced by the patch
"microblaze: Fix coding style issues"
(sha1: 6bd55f0bbaebb79b39e147aa864401fd0c94db82).

Error message:
arch/microblaze/kernel/setup.c: In function 'machine_early_init':
arch/microblaze/kernel/setup.c:177:3: error: 'pr_cont'
  undeclared (first use in this function)
arch/microblaze/kernel/setup.c:177:3: note: each undeclared
  identifier is reported only once for each function it appears in
arch/microblaze/kernel/setup.c:177:10: error: expected ';'
  before string constant
arch/microblaze/kernel/setup.c:177:33: error: expected statement
  before ')' token

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
10 years agomicroblaze: Fix compilation error for BS=0
Michal Simek [Tue, 19 Nov 2013 15:20:34 +0000 (16:20 +0100)]
microblaze: Fix compilation error for BS=0

This bug was introduced by:
"microblaze: Do not used hardcoded value in exception handler"
(sha1: 9f78d3b5ab97a22a7e836312c495804ee4bca4ab)

System without barrel shifter are pretty rare that's why
this bug has been fixed so late.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
10 years agomicroblaze: Disable stack protection from bootloader
Michal Simek [Fri, 23 Aug 2013 05:16:50 +0000 (07:16 +0200)]
microblaze: Disable stack protection from bootloader

Microblaze without MMU can use stack protection in bootloader
and kernel should clear this setting ASAP.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
10 years agomicroblaze: Define read/write{b,w,l}_relaxed MMIO
Michal Simek [Wed, 20 Nov 2013 12:59:40 +0000 (13:59 +0100)]
microblaze: Define read/write{b,w,l}_relaxed MMIO

More and more ARM specific drivers is using MMIO
readX/writeX_relaxed IO functions and Microblaze can
shared some drivers with ARM too.

This patch adds relaxed IO accessor macros
to prevent compilation failures.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
10 years agomicroblaze: timer: Do not initialized system timer twice
Michal Simek [Mon, 27 Jan 2014 09:41:59 +0000 (10:41 +0100)]
microblaze: timer: Do not initialized system timer twice

Only one system timer can be setup.
Do not initialize more system timers.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
10 years agomicroblaze: timer: Use generic sched_clock implementation
Michal Simek [Fri, 20 Dec 2013 09:16:40 +0000 (10:16 +0100)]
microblaze: timer: Use generic sched_clock implementation

Remove sched_clock from the driver and use sched_clock_register
function.
Inspired-by:
"arch_timer: Move to generic sched_clock framework"
(sha1: 65cd4f6c99c1170bd0114dbd71b978012ea44d28)

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
10 years agomicroblaze: Add NOTES section to linker script
Michal Simek [Mon, 27 Jan 2014 09:50:42 +0000 (10:50 +0100)]
microblaze: Add NOTES section to linker script

Do not keep NOTES section align in proper location.

'readelf' shows that 'NOTE' is placed in wrong location
which is out of virtual and physical load addresses.

Section Headers:
  [Nr] Name              Type            Addr     Off    Size   ES Flg Lk Inf Al
  [ 1] .note.gnu.build-i NOTE            00000000 001000 000024 00   A  0   0  4
  [ 2] .text             PROGBITS        c0000000 002000 284570 00  AX  0   0 16
  [ 3] __fdt_blob        PROGBITS        c0284570 286570 008000 00   A  0   0  1

Program Headers:
  Type           Offset   VirtAddr   PhysAddr   FileSiz MemSiz  Flg Align
  LOAD           0x001000 0x00000000 0x00000000 0x00024 0x00024 R   0x1000
  LOAD           0x002000 0xc0000000 0x08000000 0x315428 0x316000 RWE 0x1000

This patch move 'NOTE' section to the correct location.

Checked with:
"ARM: 6740/1: Place correctly notes section in the linker script"
(sha1: dc810efb0ca5702c9d96782b99282d4b4383e877)
and
"[S390] incorrect note program header"
(sha1: 7a2512b744e72377c3fa5976f06a3f343e155d1f)

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
10 years agomicroblaze: Add support for CCF
Michal Simek [Wed, 18 Dec 2013 16:18:48 +0000 (17:18 +0100)]
microblaze: Add support for CCF

Add support for CCF for Microblaze.

Old binding:
system_timer: system-timer@41c00000 {
clock-frequency = <75000000>;
...
}

New binding:
system_timer: system-timer@41c00000 {
clocks = <&clk_bus>;
...
}

Both should be supported for a while

Microblaze clock binding:
clocks {
#address-cells = <1>;
#size-cells = <0>;
clk_bus: bus {
#clock-cells = <0>;
clock-frequency = <75000000>;
clock-output-names = "bus";
compatible = "fixed-clock";
reg = <1>;
} ;
clk_cpu: cpu {
#clock-cells = <0>;
clock-frequency = <75000000>;
clock-output-names = "cpu";
compatible = "fixed-clock";
reg = <0>;
} ;
} ;

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml
Linus Torvalds [Sun, 26 Jan 2014 19:06:16 +0000 (11:06 -0800)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml

Pull UML changes from Richard Weinberger:
 "This time only various cleanups and housekeeping patches"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
  um: hostfs: make functions static
  um: Include generic barrier.h
  um: Removed unused attributes from thread_struct

10 years agoMerge tag 'mmc-updates-for-3.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 26 Jan 2014 19:00:41 +0000 (11:00 -0800)]
Merge tag 'mmc-updates-for-3.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc

Pull MMC updates from Chris Ball:
 "MMC highlights for 3.14:

  Core:
   - Avoid get_cd() on cards marked nonremovable

  Drivers:
   - arasan: New driver for controllers found in e.g. Xilinx Zynq SoC
   - dwmmc: Support Hisilicon K3 SoC controllers
   - esdhc-imx: Support for HS200 mode, DDR modes on MX6, runtime PM
   - sdhci-pci: Support O2Micro/BayHubTech controllers used in laptops
     like Lenovo ThinkPad W540, Dell Latitude E5440, Dell Latitude E6540
   - tegra: Support Tegra124 SoCs"

* tag 'mmc-updates-for-3.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (55 commits)
  mmc: sdhci-pci: Fix possibility of chip->fixes being null
  mmc: sdhci-pci: Fix BYT sd card getting stuck in runtime suspend
  mmc: sdhci: Allow for long command timeouts
  mmc: sdio: add a quirk for broken SDIO_CCCR_INTx polling
  mmc: sdhci: fix lockdep error in tuning routine
  mmc: dw_mmc: k3: remove clk_table
  mmc: dw_mmc: fix dw_mci_get_cd
  mmc: dw_mmc: fix sparse non static symbol warning
  mmc: sdhci-esdhc-imx: fix warning during module remove function
  mmc: sdhci-esdhc-imx: fix access hardirq-unsafe lock in atomic context
  mmc: core: sd: implement proper support for sd3.0 au sizes
  mmc: atmel-mci: add vmmc-supply support
  mmc: sdhci-pci: add broken HS200 quirk for Intel Merrifield
  mmc: sdhci: add quirk for broken HS200 support
  mmc: arasan: Add driver for Arasan SDHCI
  mmc: dw_mmc: add dw_mmc-k3 for k3 platform
  mmc: dw_mmc: use slot-gpio to handle cd pin
  mmc: sdhci-pci: add support of O2Micro/BayHubTech SD hosts
  mmc: sdhci-pci: break out definitions to header file
  mmc: tmio: fixup compile error
  ...

Conflicts:
MAINTAINERS

10 years agoMerge tag 'for-3.14-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sun, 26 Jan 2014 18:55:41 +0000 (10:55 -0800)]
Merge tag 'for-3.14-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs

Pull 9p changes from Eric Van Hensbergen:
 "Included are a new cache model for support of mmap, and several
  cleanups across the filesystem and networking portions of the code"

* tag 'for-3.14-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs:
  9p: update documentation
  9P: introduction of a new cache=mmap model.
  net/9p: remove virtio default hack and set appropriate bits instead
  9p: remove useless 'name' variable and assignment
  9p: fix return value in case in v9fs_fid_xattr_set()
  9p: remove useless variable and assignment
  9p: remove useless assignment
  9p: remove unused 'super_block' struct pointer
  9p: remove never used return variable
  9p: remove unused 'p9_fid' struct pointer
  9p: remove unused 'p9_client' struct pointer

10 years ago__dentry_path() fixes
Al Viro [Sun, 26 Jan 2014 17:37:55 +0000 (12:37 -0500)]
__dentry_path() fixes

* we need to save the starting point for restarts
* reject pathologically short buffers outright

Spotted-by: Denys Vlasenko <dvlasenk@redhat.com>
Spotted-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
10 years agovfs: Remove second variable named error in __dentry_path
Eric W. Biederman [Mon, 20 Jan 2014 23:43:25 +0000 (15:43 -0800)]
vfs: Remove second variable named error in __dentry_path

In commit  232d2d60aa5469bb097f55728f65146bd49c1d25
Author: Waiman Long <Waiman.Long@hp.com>
Date:   Mon Sep 9 12:18:13 2013 -0400

    dcache: Translating dentry into pathname without taking rename_lock

The __dentry_path locking was changed and the variable error was
intended to be moved outside of the loop.  Unfortunately the inner
declaration of error was not removed. Resulting in a version of
__dentry_path that will never return an error.

Remove the problematic inner declaration of error and allow
__dentry_path to return errors once again.

Cc: stable@vger.kernel.org
Cc: Waiman Long <Waiman.Long@hp.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>