Commit Graph

440780 Commits

Author SHA1 Message Date
Brian Foster
a3fa516dd8 xfs: add finobt support to growfs
Add finobt support to growfs. Initialize the agi root/level fields
and the root finobt block.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
2014-04-24 16:01:39 +10:00
Brian Foster
3efa4ffd58 xfs: update the finobt on inode free
An inode free operation can have several effects on the finobt. If
all inodes have been freed and the chunk deallocated, we remove the
finobt record. If the inode chunk was previously full, we must
insert a new record based on the existing inobt record. Otherwise,
we modify the record in place.

Create the xfs_difree_finobt() function to identify the potential
scenarios and update the finobt appropriately.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
2014-04-24 16:00:53 +10:00
Brian Foster
2b64ee5cdc xfs: refactor xfs_difree() inobt bits into xfs_difree_inobt() helper
Refactor xfs_difree() in preparation for the finobt. xfs_difree()
performs the validity checks against the ag and reads the agi
header. The work of physically updating the inode allocation btree
is pushed down into the new xfs_difree_inobt() helper.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
2014-04-24 16:00:53 +10:00
Brian Foster
6dd8638e4e xfs: use and update the finobt on inode allocation
Replace xfs_dialloc_ag() with an implementation that looks for a
record in the finobt. The finobt only tracks records with at least
one free inode. This eliminates the need for the intra-ag scan in
the original algorithm. Once the inode is allocated, update the
finobt appropriately (possibly removing the record) as well as the
inobt.

Move the original xfs_dialloc_ag() algorithm to
xfs_dialloc_ag_inobt() and fall back as such if finobt support is
not enabled.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
2014-04-24 16:00:53 +10:00
Brian Foster
0aa0a756ec xfs: insert newly allocated inode chunks into the finobt
A newly allocated inode chunk, by definition, has at least one
free inode, so a record is always inserted into the finobt.

Create the xfs_inobt_insert() helper from existing code to insert
a record in an inobt based on the provided BTNUM. Update
xfs_ialloc_ag_alloc() to invoke the helper for the existing
XFS_BTNUM_INO tree and XFS_BTNUM_FINO tree, if enabled.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
2014-04-24 16:00:53 +10:00
Brian Foster
9d43b180af xfs: update inode allocation/free transaction reservations for finobt
Create the xfs_calc_finobt_res() helper to calculate the finobt log
reservation for inode allocation and free. Update
XFS_IALLOC_SPACE_RES() to reserve blocks for the additional finobt
insertion on inode allocation. Create XFS_IFREE_SPACE_RES() to
reserve blocks for the potential finobt record insertion on inode
free (i.e., if an inode chunk was previously fully allocated).

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
2014-04-24 16:00:52 +10:00
Brian Foster
aafc3c2465 xfs: support the XFS_BTNUM_FINOBT free inode btree type
Define the AGI fields for the finobt root/level and add magic
numbers. Update the btree code to add support for the new
XFS_BTNUM_FINOBT inode btree.

The finobt root block is reserved immediately following the inobt
root block in the AG. Update XFS_PREALLOC_BLOCKS() to determine the
starting AG data block based on whether finobt support is enabled.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
2014-04-24 16:00:52 +10:00
Brian Foster
8e2c84df20 xfs: reserve v5 superblock read-only compat. feature bit for finobt
Reserve a v5 read-only compatibility feature bit for the finobt and
create the xfs_sb_version_hasfinobt() helper to determine whether
an fs has the feature enabled.

The finobt does not change existing on-disk structures, but must
remain consistent with the ialloc btree. Modifications from older
kernels would violate that constrant. Therefore, we restrict older
kernels to read-only mounts of finobt-enabled filesystems.

Note that this does not yet enable the ability to rw mount a finobt
fs (by setting the feature bit in the XFS_SB_FEAT_RO_COMPAT_ALL
mask).

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
2014-04-24 16:00:52 +10:00
Brian Foster
57bd3dbe40 xfs: refactor xfs_ialloc_btree.c to support multiple inobt numbers
The introduction of the free inode btree (finobt) requires that
xfs_ialloc_btree.c handle multiple trees. Refactor xfs_ialloc_btree.c
so the caller specifies the btree type on cursor initialization to
prepare for addition of the finobt.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Dave Chinner <david@fromorbit.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dave Chinner <david@fromorbit.com>
2014-04-24 16:00:50 +10:00
Linus Torvalds
c9eaa447e7 Linux 3.15-rc1 2014-04-13 14:18:35 -07:00
Geert Uytterhoeven
f7c1d07420 mm: Initialize error in shmem_file_aio_read()
Some versions of gcc even warn about it:

  mm/shmem.c: In function ‘shmem_file_aio_read’:
  mm/shmem.c:1414: warning: ‘error’ may be used uninitialized in this function

If the loop is aborted during the first iteration by one of the two
first break statements, error will be uninitialized.

Introduced by commit 6e58e79db8 ("introduce copy_page_to_iter, kill
loop over iovec in generic_file_aio_read()").

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-04-13 14:10:26 -07:00
Geert Uytterhoeven
e686bd8dc5 cifs: Use min_t() when comparing "size_t" and "unsigned long"
On 32 bit, size_t is "unsigned int", not "unsigned long", causing the
following warning when comparing with PAGE_SIZE, which is always "unsigned
long":

  fs/cifs/file.c: In function ‘cifs_readdata_to_iov’:
  fs/cifs/file.c:2757: warning: comparison of distinct pointer types lacks a cast

Introduced by commit 7f25bba819 ("cifs_iovec_read: keep iov_iter
between the calls of cifs_readdata_to_iov()"), which changed the
signedness of "remaining" and the code from min_t() to min().

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-04-13 14:10:26 -07:00
Linus Torvalds
bf3a340738 Merge branch 'slab/next' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux
Pull slab changes from Pekka Enberg:
 "The biggest change is byte-sized freelist indices which reduces slab
  freelist memory usage:

    https://lkml.org/lkml/2013/12/2/64"

* 'slab/next' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux:
  mm: slab/slub: use page->list consistently instead of page->lru
  mm/slab.c: cleanup outdated comments and unify variables naming
  slab: fix wrongly used macro
  slub: fix high order page allocation problem with __GFP_NOFAIL
  slab: Make allocations with GFP_ZERO slightly more efficient
  slab: make more slab management structure off the slab
  slab: introduce byte sized index for the freelist of a slab
  slab: restrict the number of objects in a slab
  slab: introduce helper functions to get/set free object
  slab: factor out calculate nr objects in cache_estimate
2014-04-13 13:28:13 -07:00
Linus Torvalds
321d03c867 Merge branch 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Pull misc kbuild changes from Michal Marek:
 "Here is the non-critical part of kbuild:
   - One bogus coccinelle check removed, one check fixed not to suggest
     the obsolete PTR_RET macro
   - scripts/tags.sh does not index the generated *.mod.c files
   - new objdiff tool to list differences between two versions of an
     object file
   - A fix for scripts/bootgraph.pl"

* 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  scripts/coccinelle: Use PTR_ERR_OR_ZERO
  scripts/bootgraph.pl: Add graphic header
  scripts: objdiff: detect object code changes between two commits
  Coccicheck: Remove memcpy to struct assignment test
  scripts/tags.sh: Ignore *.mod.c
2014-04-12 18:22:27 -07:00
Mikulas Patocka
fd1232b214 sym53c8xx_2: Set DID_REQUEUE return code when aborting squeue
This patch fixes I/O errors with the sym53c8xx_2 driver when the disk
returns QUEUE FULL status.

When the controller encounters an error (including QUEUE FULL or BUSY
status), it aborts all not yet submitted requests in the function
sym_dequeue_from_squeue.

This function aborts them with DID_SOFT_ERROR.

If the disk has full tag queue, the request that caused the overflow is
aborted with QUEUE FULL status (and the scsi midlayer properly retries
it until it is accepted by the disk), but the sym53c8xx_2 driver aborts
the following requests with DID_SOFT_ERROR --- for them, the midlayer
does just a few retries and then signals the error up to sd.

The result is that disk returning QUEUE FULL causes request failures.

The error was reproduced on 53c895 with COMPAQ BD03685A24 disk
(rebranded ST336607LC) with command queue 48 or 64 tags.  The disk has
64 tags, but under some access patterns it return QUEUE FULL when there
are less than 64 pending tags.  The SCSI specification allows returning
QUEUE FULL anytime and it is up to the host to retry.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: James Bottomley <JBottomley@Parallels.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-04-12 18:02:16 -07:00
Paul Mackerras
18aa0da33e powerpc: Don't try to set LPCR unless we're in hypervisor mode
Commit 8f619b5429 ("powerpc/ppc64: Do not turn AIL (reloc-on
interrupts) too early") added code to set the AIL bit in the LPCR
without checking whether the kernel is running in hypervisor mode.  The
result is that when the kernel is running as a guest (i.e., under
PowerKVM or PowerVM), the processor takes a privileged instruction
interrupt at that point, causing a panic.  The visible result is that
the kernel hangs after printing "returning from prom_init".

This fixes it by checking for hypervisor mode being available before
setting LPCR.  If we are not in hypervisor mode, we enable relocation-on
interrupts later in pSeries_setup_arch using the H_SET_MODE hcall.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-04-12 17:58:48 -07:00
Davidlohr Bueso
d7e8af1afe futex: update documentation for ordering guarantees
Commits 11d4616bd0 ("futex: revert back to the explicit waiter
counting code") and 69cd9eba38 ("futex: avoid race between requeue and
wake") changed some of the finer details of how we think about futexes.
One was a late fix and the other a consequence of overlooking the whole
requeuing logic.

The first change caused our documentation to be incorrect, and the
second made us aware that we need to explicitly add more details to it.

Signed-off-by: Davidlohr Bueso <davidlohr@hp.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-04-12 17:57:51 -07:00
Linus Torvalds
454fd351f2 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull yet more networking updates from David Miller:

 1) Various fixes to the new Redpine Signals wireless driver, from
    Fariya Fatima.

 2) L2TP PPP connect code takes PMTU from the wrong socket, fix from
    Dmitry Petukhov.

 3) UFO and TSO packets differ in whether they include the protocol
    header in gso_size, account for that in skb_gso_transport_seglen().
   From Florian Westphal.

 4) If VLAN untagging fails, we double free the SKB in the bridging
    output path.  From Toshiaki Makita.

 5) Several call sites of sk->sk_data_ready() were referencing an SKB
    just added to the socket receive queue in order to calculate the
    second argument via skb->len.  This is dangerous because the moment
    the skb is added to the receive queue it can be consumed in another
    context and freed up.

    It turns out also that none of the sk->sk_data_ready()
    implementations even care about this second argument.

    So just kill it off and thus fix all these use-after-free bugs as a
    side effect.

 6) Fix inverted test in tcp_v6_send_response(), from Lorenzo Colitti.

 7) pktgen needs to do locking properly for LLTX devices, from Daniel
    Borkmann.

 8) xen-netfront driver initializes TX array entries in RX loop :-) From
    Vincenzo Maffione.

 9) After refactoring, some tunnel drivers allow a tunnel to be
    configured on top itself.  Fix from Nicolas Dichtel.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (46 commits)
  vti: don't allow to add the same tunnel twice
  gre: don't allow to add the same tunnel twice
  drivers: net: xen-netfront: fix array initialization bug
  pktgen: be friendly to LLTX devices
  r8152: check RTL8152_UNPLUG
  net: sun4i-emac: add promiscuous support
  net/apne: replace IS_ERR and PTR_ERR with PTR_ERR_OR_ZERO
  net: ipv6: Fix oif in TCP SYN+ACK route lookup.
  drivers: net: cpsw: enable interrupts after napi enable and clearing previous interrupts
  drivers: net: cpsw: discard all packets received when interface is down
  net: Fix use after free by removing length arg from sk_data_ready callbacks.
  Drivers: net: hyperv: Address UDP checksum issues
  Drivers: net: hyperv: Negotiate suitable ndis version for offload support
  Drivers: net: hyperv: Allocate memory for all possible per-pecket information
  bridge: Fix double free and memory leak around br_allowed_ingress
  bonding: Remove debug_fs files when module init fails
  i40evf: program RSS LUT correctly
  i40evf: remove open-coded skb_cow_head
  ixgb: remove open-coded skb_cow_head
  igbvf: remove open-coded skb_cow_head
  ...
2014-04-12 17:31:22 -07:00
Linus Torvalds
fd18f00dd9 blackfin updates for Linux 3.15
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Merge tag 'blackfin-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/realmz6/blackfin-linux

Pull blackfin updates from Steven Miao:
 "Code cleanup, some previously ignored patches, and bug fixes"

* tag 'blackfin-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/realmz6/blackfin-linux:
  blackfin: cleanup board files
  bf609: clock: drop unused clock bit set/clear functions
  Blackfin: bf537: rename "CONFIG_ADT75"
  Blackfin: bf537: rename "CONFIG_AD7314"
  Blackfin: bf537: rename ad2s120x ->ad2s1200
  blackfin: bf537: fix typo "CONFIG_SND_SOC_ADV80X_MODULE"
  blackfin: dma: current count mmr is read only
  bfin_crc: Move architecture independant crc header file out of the blackfin folder.
  bf54x: drop unuesd HOST status,control,timeout registers bit define macros
  blackfin: portmux: cleanup head file
  Blackfin: remove "config IP_CHECKSUM_L1"
  blackfin: Remove GENERIC_GPIO config option again
  blackfin:Use generic /proc/interrupts implementation
  blackfin: bf60x: fix typo "CONFIG_PM_BFIN_WAKE_PA15_POL"
2014-04-12 17:26:45 -07:00
Linus Torvalds
de0c9cf96a Several remoteproc cleanup patches coming from Jingoo Han, Julia Lawall and Uwe Kleine-König.
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Merge tag 'remoteproc-3.15-cleanups' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc

Pull remoteproc cleanups from Ohad Ben-Cohen:
 "Several remoteproc cleanup patches coming from Jingoo Han, Julia
  Lawall and Uwe Kleine-König"

* tag 'remoteproc-3.15-cleanups' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc:
  remoteproc/ste_modem: staticize local symbols
  remoteproc/davinci: simplify use of devm_ioremap_resource
  remoteproc/davinci: drop needless devm_clk_put
2014-04-12 17:23:12 -07:00
Linus Torvalds
09c9b61d5d LLVMLinux Patches for v3.15
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Merge tag 'llvmlinux-for-v3.15' of git://git.linuxfoundation.org/llvmlinux/kernel

Pull llvm patches from Behan Webster:
 "These are some initial updates to support compiling the kernel with
  clang.

  These patches have been through the proper reviews to the best of my
  ability, and have been soaking in linux-next for a few weeks.  These
  patches by themselves still do not completely allow clang to be used
  with the kernel code, but lay the foundation for other patches which
  are still under review.

  Several other of the LLVMLinux patches have been already added via
  maintainer trees"

* tag 'llvmlinux-for-v3.15' of git://git.linuxfoundation.org/llvmlinux/kernel:
  x86: LLVMLinux: Fix "incomplete type const struct x86cpu_device_id"
  x86 kbuild: LLVMLinux: More cc-options added for clang
  x86, acpi: LLVMLinux: Remove nested functions from Thinkpad ACPI
  LLVMLinux: Add support for clang to compiler.h and new compiler-clang.h
  LLVMLinux: Remove warning about returning an uninitialized variable
  kbuild: LLVMLinux: Fix LINUX_COMPILER definition script for compilation with clang
  Documentation: LLVMLinux: Update Documentation/dontdiff
  kbuild: LLVMLinux: Adapt warnings for compilation with clang
  kbuild: LLVMLinux: Add Kbuild support for building kernel with Clang
2014-04-12 17:00:40 -07:00
Linus Torvalds
141eaccd01 Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Pull SCSI target updates from Nicholas Bellinger:
 "Here are the target pending updates for v3.15-rc1.  Apologies in
  advance for waiting until the second to last day of the merge window
  to send these out.

  The highlights this round include:

   - iser-target support for T10 PI (DIF) offloads (Sagi + Or)
   - Fix Task Aborted Status (TAS) handling in target-core (Alex Leung)
   - Pass in transport supported PI at session initialization (Sagi + MKP + nab)
   - Add WRITE_INSERT + READ_STRIP T10 PI support in target-core (nab + Sagi)
   - Fix iscsi-target ERL=2 ASYNC_EVENT connection pointer bug (nab)
   - Fix tcm_fc use-after-free of ft_tpg (Andy Grover)
   - Use correct ib_sg_dma primitives in ib_isert (Mike Marciniszyn)

  Also, note the virtio-scsi + vhost-scsi changes to expose T10 PI
  metadata into KVM guest have been left-out for now, as there where a
  few comments from MST + Paolo that where not able to be addressed in
  time for v3.15.  Please expect this feature for v3.16-rc1"

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (43 commits)
  ib_srpt: Use correct ib_sg_dma primitives
  target/tcm_fc: Rename ft_tport_create to ft_tport_get
  target/tcm_fc: Rename ft_{add,del}_lport to {add,del}_wwn
  target/tcm_fc: Rename structs and list members for clarity
  target/tcm_fc: Limit to 1 TPG per wwn
  target/tcm_fc: Don't export ft_lport_list
  target/tcm_fc: Fix use-after-free of ft_tpg
  target: Add check to prevent Abort Task from aborting itself
  target: Enable READ_STRIP emulation in target_complete_ok_work
  target/sbc: Add sbc_dif_read_strip software emulation
  target: Enable WRITE_INSERT emulation in target_execute_cmd
  target/sbc: Add sbc_dif_generate software emulation
  target/sbc: Only expose PI read_cap16 bits when supported by fabric
  target/spc: Only expose PI mode page bits when supported by fabric
  target/spc: Only expose PI inquiry bits when supported by fabric
  target: Pass in transport supported PI at session initialization
  target/iblock: Fix double bioset_integrity_free bug
  Target/sbc: Initialize COMPARE_AND_WRITE write_sg scatterlist
  target/rd: T10-Dif: RAM disk is allocating more space than required.
  iscsi-target: Fix ERL=2 ASYNC_EVENT connection pointer bug
  ...
2014-04-12 16:51:08 -07:00
Linus Torvalds
9309444906 Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
 "A series of bug fix patches for v3.15-rc1.  Most are just driver
  fixes.  There are some changes at remote controller core level, fixing
  some definitions on a new API added for Kernel v3.15.

  It also adds the missing include at include/uapi/linux/v4l2-common.h,
  to allow its compilation on userspace, as pointed by you"

* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (24 commits)
  [media] gpsca: remove the risk of a division by zero
  [media] stk1160: warrant a NUL terminated string
  [media] v4l: ti-vpe: retain v4l2_buffer flags for captured buffers
  [media] v4l: ti-vpe: Set correct field parameter for output and capture buffers
  [media] v4l: ti-vpe: zero out reserved fields in try_fmt
  [media] v4l: ti-vpe: Fix initial configuration queue data
  [media] v4l: ti-vpe: Use correct bus_info name for the device in querycap
  [media] v4l: ti-vpe: report correct capabilities in querycap
  [media] v4l: ti-vpe: Allow usage of smaller images
  [media] v4l: ti-vpe: Use video_device_release_empty
  [media] v4l: ti-vpe: Make sure in job_ready that we have the needed number of dst_bufs
  [media] lgdt3305: include sleep functionality in lgdt3304_ops
  [media] drx-j: use customise option correctly
  [media] m88rs2000: fix sparse static warnings
  [media] r820t: fix size and init values
  [media] rc-core: remove generic scancode filter
  [media] rc-core: split dev->s_filter
  [media] rc-core: do not change 32bit NEC scancode format for now
  [media] rtl28xxu: remove duplicate ID 0458:707f Genius TVGo DVB-T03
  [media] xc2028: add missing break to switch
  ...
2014-04-12 16:18:17 -07:00
Linus Torvalds
07f5fef981 NTB driver bug fixes to address issues in list traversal, skb leak in
ntb_netdev, a typo, and a leak of msix entries in the error path.
 Clean ups of the event handling logic, as well as a overall style
 cleanup.  Finally, the driver was converted to use the new
 pci_enable_msix_range logic (and the refactoring to go along with it).
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Merge tag 'ntb-3.15' of git://github.com/jonmason/ntb

Pull PCIe non-transparent bridge fixes and features from Jon Mason:
 "NTB driver bug fixes to address issues in list traversal, skb leak in
  ntb_netdev, a typo, and a leak of msix entries in the error path.
  Clean ups of the event handling logic, as well as a overall style
  cleanup.  Finally, the driver was converted to use the new
  pci_enable_msix_range logic (and the refactoring to go along with it)"

* tag 'ntb-3.15' of git://github.com/jonmason/ntb:
  ntb: Use pci_enable_msix_range() instead of pci_enable_msix()
  ntb: Split ntb_setup_msix() into separate BWD/SNB routines
  ntb: Use pci_msix_vec_count() to obtain number of MSI-Xs
  NTB: Code Style Clean-up
  NTB: client event cleanup
  ntb: Fix leakage of ntb_device::msix_entries[] array
  NTB: Fix typo in setting one translation register
  ntb_netdev: Fix skb free issue in open
  ntb_netdev: Fix list_for_each_entry exit issue
2014-04-12 16:16:39 -07:00
Linus Torvalds
96c57ade7e ceph: fix pr_fmt() redefinition
The vfs merge caused a latent bug to show up:

   In file included from fs/ceph/super.h:4:0,
                    from fs/ceph/ioctl.c:3:
   include/linux/ceph/ceph_debug.h:4:0: warning: "pr_fmt" redefined [enabled by default]
    #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
    ^
   In file included from include/linux/kernel.h:13:0,
                    from include/linux/uio.h:12,
                    from include/linux/socket.h:7,
                    from include/uapi/linux/in.h:22,
                    from include/linux/in.h:23,
                    from fs/ceph/ioctl.c:1:
   include/linux/printk.h:214:0: note: this is the location of the previous definition
    #define pr_fmt(fmt) fmt
    ^

where the reason is that <linux/ceph_debug.h> is included much too late
for the "pr_fmt()" define.

The include of <linux/ceph_debug.h> needs to be the first include in the
file, but fs/ceph/ioctl.c had for some reason missed that, and it wasn't
noticeable until some unrelated header file changes brought in an
indirect earlier include of <linux/kernel.h>.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-04-12 15:39:53 -07:00
Linus Torvalds
5166701b36 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs updates from Al Viro:
 "The first vfs pile, with deep apologies for being very late in this
  window.

  Assorted cleanups and fixes, plus a large preparatory part of iov_iter
  work.  There's a lot more of that, but it'll probably go into the next
  merge window - it *does* shape up nicely, removes a lot of
  boilerplate, gets rid of locking inconsistencie between aio_write and
  splice_write and I hope to get Kent's direct-io rewrite merged into
  the same queue, but some of the stuff after this point is having
  (mostly trivial) conflicts with the things already merged into
  mainline and with some I want more testing.

  This one passes LTP and xfstests without regressions, in addition to
  usual beating.  BTW, readahead02 in ltp syscalls testsuite has started
  giving failures since "mm/readahead.c: fix readahead failure for
  memoryless NUMA nodes and limit readahead pages" - might be a false
  positive, might be a real regression..."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (63 commits)
  missing bits of "splice: fix racy pipe->buffers uses"
  cifs: fix the race in cifs_writev()
  ceph_sync_{,direct_}write: fix an oops on ceph_osdc_new_request() failure
  kill generic_file_buffered_write()
  ocfs2_file_aio_write(): switch to generic_perform_write()
  ceph_aio_write(): switch to generic_perform_write()
  xfs_file_buffered_aio_write(): switch to generic_perform_write()
  export generic_perform_write(), start getting rid of generic_file_buffer_write()
  generic_file_direct_write(): get rid of ppos argument
  btrfs_file_aio_write(): get rid of ppos
  kill the 5th argument of generic_file_buffered_write()
  kill the 4th argument of __generic_file_aio_write()
  lustre: don't open-code kernel_recvmsg()
  ocfs2: don't open-code kernel_recvmsg()
  drbd: don't open-code kernel_recvmsg()
  constify blk_rq_map_user_iov() and friends
  lustre: switch to kernel_sendmsg()
  ocfs2: don't open-code kernel_sendmsg()
  take iov_iter stuff to mm/iov_iter.c
  process_vm_access: tidy up a bit
  ...
2014-04-12 14:49:50 -07:00
David S. Miller
eda43ce039 Merge branch 'tunnels'
Nicolas Dichtel says:

====================
tunnels: don't allow to add the same tunnel twice

This series fixes the check of an existing tunnel with the same
parameters when a new tunnel is added.  I've checked all users of
ip_tunnel_newlink(): gre, gretap, ipip and vti. The bug exists only
for gre and vti.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-12 17:03:20 -04:00
Nicolas Dichtel
8d89dcdf80 vti: don't allow to add the same tunnel twice
Before the patch, it was possible to add two times the same tunnel:
ip l a vti1 type vti remote 10.16.0.121 local 10.16.0.249 key 41
ip l a vti2 type vti remote 10.16.0.121 local 10.16.0.249 key 41

It was possible, because ip_tunnel_newlink() calls ip_tunnel_find() with the
argument dev->type, which was set only later (when calling ndo_init handler
in register_netdevice()). Let's set this type in the setup handler, which is
called before newlink handler.

Introduced by commit b9959fd3b0 ("vti: switch to new ip tunnel code").

CC: Cong Wang <amwang@redhat.com>
CC: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-12 17:03:11 -04:00
Nicolas Dichtel
5a4552752d gre: don't allow to add the same tunnel twice
Before the patch, it was possible to add two times the same tunnel:
ip l a gre1 type gre remote 10.16.0.121 local 10.16.0.249
ip l a gre2 type gre remote 10.16.0.121 local 10.16.0.249

It was possible, because ip_tunnel_newlink() calls ip_tunnel_find() with the
argument dev->type, which was set only later (when calling ndo_init handler
in register_netdevice()). Let's set this type in the setup handler, which is
called before newlink handler.

Introduced by commit c544193214 ("GRE: Refactor GRE tunneling code.").

CC: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-12 17:03:11 -04:00
Vincenzo Maffione
810d8cedcc drivers: net: xen-netfront: fix array initialization bug
This patch fixes the initialization of an array used in the TX
datapath that was mistakenly initialized together with the
RX datapath arrays. An out of range array access could happen
when RX and TX rings had different sizes.

Signed-off-by: Vincenzo Maffione <v.maffione@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-12 16:49:06 -04:00
David S. Miller
dcfba949ba Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net
Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates

This series contains updates to e1000, e1000e, igb, igbvf, ixgb, ixgbe,
ixgbevf and i40evf.

Mark fixes an issue with ixgbe and ixgbevf by adding a bit to indicate
when workqueues have been initialized.  This permits the register read
error handling from attempting to use them prior to that, which also
generates warnings.  Checking for a detected removal after initializing
the work queues allows the probe function to return an error without
getting the workqueue involved.  Further, if the error_detected
callback is entered before the workqueues are initialized, exit without
recovery since the device initialization was so truncated.

Francois Romieu provides several patches to all the drivers to remove
the open coded skb_cow_head.

Jakub Kicinski provides a fix for igb where last_rx_timestamp should be
updated only when Rx time stamp is read.

Mitch provides a fix for i40evf where a recent change broke the RSS LUT
programming causing it to be programmed with all 0's.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-12 16:36:44 -04:00
Linus Torvalds
0a7418f5f5 This includes the final patch to clean up and fix the issue with the
design of tracepoints and how a user could register a tracepoint
 and have that tracepoint not be activated but no error was shown.
 
 The design was for an out of tree module but broke in tree users.
 The clean up was to remove the saving of the hash table of tracepoint
 names such that they can be enabled before they exist (enabling
 a module tracepoint before that module is loaded). This added more
 complexity than needed. The clean up was to remove that code and
 just enable tracepoints that exist or fail if they do not.
 
 This removed a lot of code as well as the complexity that it brought.
 As a side effect, instead of registering a tracepoint by its name,
 the tracepoint needs to be registered with the tracepoint descriptor.
 This removes having to duplicate the tracepoint names that are
 enabled.
 
 The second patch was added that simplified the way modules were
 searched for.
 
 This cleanup required changes that were in the 3.15 queue as well as
 some changes that were added late in the 3.14-rc cycle. This final
 change waited till the two were merged in upstream and then the
 change was added and full tests were run. Unfortunately, the
 test found some errors, but after it was already submitted to the
 for-next branch and not to be rebased. Sparse errors were detected
 by Fengguang Wu's bot tests, and my internal tests discovered that
 the anonymous union initialization triggered a bug in older gcc compilers.
 Luckily, there was a bugzilla for the gcc bug which gave a work around
 to the problem. The third and fourth patch handled the sparse error
 and the gcc bug respectively.
 
 A final patch was tagged along to fix a missing documentation for
 the README file.
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Merge tag 'trace-3.15-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull more tracing updates from Steven Rostedt:
 "This includes the final patch to clean up and fix the issue with the
  design of tracepoints and how a user could register a tracepoint and
  have that tracepoint not be activated but no error was shown.

  The design was for an out of tree module but broke in tree users.  The
  clean up was to remove the saving of the hash table of tracepoint
  names such that they can be enabled before they exist (enabling a
  module tracepoint before that module is loaded).  This added more
  complexity than needed.  The clean up was to remove that code and just
  enable tracepoints that exist or fail if they do not.

  This removed a lot of code as well as the complexity that it brought.
  As a side effect, instead of registering a tracepoint by its name, the
  tracepoint needs to be registered with the tracepoint descriptor.
  This removes having to duplicate the tracepoint names that are
  enabled.

  The second patch was added that simplified the way modules were
  searched for.

  This cleanup required changes that were in the 3.15 queue as well as
  some changes that were added late in the 3.14-rc cycle.  This final
  change waited till the two were merged in upstream and then the change
  was added and full tests were run.  Unfortunately, the test found some
  errors, but after it was already submitted to the for-next branch and
  not to be rebased.  Sparse errors were detected by Fengguang Wu's bot
  tests, and my internal tests discovered that the anonymous union
  initialization triggered a bug in older gcc compilers.  Luckily, there
  was a bugzilla for the gcc bug which gave a work around to the
  problem.  The third and fourth patch handled the sparse error and the
  gcc bug respectively.

  A final patch was tagged along to fix a missing documentation for the
  README file"

* tag 'trace-3.15-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tracing: Add missing function triggers dump and cpudump to README
  tracing: Fix anonymous unions in struct ftrace_event_call
  tracepoint: Fix sparse warnings in tracepoint.c
  tracepoint: Simplify tracepoint module search
  tracepoint: Use struct pointer instead of name hash for reg/unreg tracepoints
2014-04-12 13:06:10 -07:00
Linus Torvalds
0b747172dc Merge git://git.infradead.org/users/eparis/audit
Pull audit updates from Eric Paris.

* git://git.infradead.org/users/eparis/audit: (28 commits)
  AUDIT: make audit_is_compat depend on CONFIG_AUDIT_COMPAT_GENERIC
  audit: renumber AUDIT_FEATURE_CHANGE into the 1300 range
  audit: do not cast audit_rule_data pointers pointlesly
  AUDIT: Allow login in non-init namespaces
  audit: define audit_is_compat in kernel internal header
  kernel: Use RCU_INIT_POINTER(x, NULL) in audit.c
  sched: declare pid_alive as inline
  audit: use uapi/linux/audit.h for AUDIT_ARCH declarations
  syscall_get_arch: remove useless function arguments
  audit: remove stray newline from audit_log_execve_info() audit_panic() call
  audit: remove stray newlines from audit_log_lost messages
  audit: include subject in login records
  audit: remove superfluous new- prefix in AUDIT_LOGIN messages
  audit: allow user processes to log from another PID namespace
  audit: anchor all pid references in the initial pid namespace
  audit: convert PPIDs to the inital PID namespace.
  pid: get pid_t ppid of task in init_pid_ns
  audit: rename the misleading audit_get_context() to audit_take_context()
  audit: Add generic compat syscall support
  audit: Add CONFIG_HAVE_ARCH_AUDITSYSCALL
  ...
2014-04-12 12:38:53 -07:00
Al Viro
a786c06d9f missing bits of "splice: fix racy pipe->buffers uses"
that commit has fixed only the parts of that mess in fs/splice.c itself;
there had been more in several other ->splice_read() instances...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-04-12 07:04:19 -04:00
Al Viro
19dfc1f5f2 cifs: fix the race in cifs_writev()
O_APPEND handling there hadn't been completely fixed by Pavel's
patch; it checks the right value, but it's racy - we can't really
do that until i_mutex has been taken.

Fix by switching to __generic_file_aio_write() (open-coding
generic_file_aio_write(), actually) and pulling mutex_lock() above
inode_size_read().

Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-04-12 06:52:48 -04:00
Al Viro
eab87235c0 ceph_sync_{,direct_}write: fix an oops on ceph_osdc_new_request() failure
ceph_osdc_put_request(ERR_PTR(-error)) oopses.  What we want there
is break, not goto out.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-04-12 06:51:51 -04:00
Daniel Borkmann
0f2eea4b7e pktgen: be friendly to LLTX devices
Similarly to commit 43279500de ("packet: respect devices with
LLTX flag in direct xmit"), we can basically apply the very same
to pktgen. This will help testing against LLTX devices such as
dummy driver (or others), which only have a single netdevice txq
and would otherwise require locking their txq from pktgen side
while e.g. in dummy case, we would not need any locking. Fix this
by making use of HARD_TX_{UN,}LOCK API, so that NETIF_F_LLTX will
be respected.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-12 01:59:38 -04:00
hayeswang
6871438cc4 r8152: check RTL8152_UNPLUG
When the device is unplugged, the driver would try to disable the
device. Add checking the flag of RTL8152_UNPLUG to skip setting
the device when it is unplugged. This could shorten the time of
unloading the driver.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-12 01:59:38 -04:00
Marc Zyngier
cec9ae50cc net: sun4i-emac: add promiscuous support
The sun4i-emac driver is rather primitive, and doesn't support
promiscuous mode. This makes usage such as bridging impossible,
which is a shame on virtualization capable HW such as the
Allwinner A20.

The fix is fairly simple: move the RX setup code to the ndo_set_rx_mode
vector, and add the required HW configuration when IFF_PROMISC is passed
by the core code.

This has been tested on a generic A20 box running a few virtual
machines hanging off a bridge with the EMAC chip as the link to the
outside world.

Cc: Stefan Roese <sr@denx.de>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Stefan Roese <sr@denx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-12 01:59:38 -04:00
Duan Jiong
0af764e3f7 net/apne: replace IS_ERR and PTR_ERR with PTR_ERR_OR_ZERO
This patch fixes coccinelle error regarding usage of IS_ERR and
PTR_ERR instead of PTR_ERR_OR_ZERO.

Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-12 01:59:38 -04:00
Steven Miao
c4a2c58d20 blackfin: cleanup board files
using IS_ENABLED() macro instead of defined(CONFIG_XXX) || defined(CONFIG_XXX_MODULE)

Signed-off-by: Steven Miao <realmz6@gmail.com>
2014-04-12 08:48:01 +08:00
Steven Miao
f8ef77d938 bf609: clock: drop unused clock bit set/clear functions
Signed-off-by: Steven Miao <realmz6@gmail.com>
2014-04-12 08:48:00 +08:00
Paul Bolle
f57ac8a744 Blackfin: bf537: rename "CONFIG_ADT75"
In v3.2 the Analog Devices ADT75 temperature sensor driver was removed
as an IIO driver and support for it was added to the LM75 HWMON driver.
But it was apparently overlooked to rename one reference to CONFIG_ADT75
to CONFIG_SENSORS_LM75. Do so now. Use the IS_ENABLED() macro, while
we're at it.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
2014-04-12 08:47:59 +08:00
Paul Bolle
e3dd192956 Blackfin: bf537: rename "CONFIG_AD7314"
In v3.2 the Analog Devices AD7314 temperature sensor driver was removed
as an IIO driver and added as a HWMON driver. But it was apparently
overlooked to rename two references to CONFIG_AD7314 to
CONFIG_SENSORS_AD7314. Do so now. Use the IS_ENABLED() macro, while
we're at it.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
2014-04-12 08:47:58 +08:00
Paul Bolle
6ffe34638e Blackfin: bf537: rename ad2s120x ->ad2s1200
In v3.2 the Analog Devices ad2s1200/ad2s1205 driver was renamed from
ad2s120x to ad2s1200. But it apparently forgot to rename the references
to this driver in the BF537-STAMP code. Rename these now, and use the
IS_ENABLED() macro, while we're at it.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
2014-04-12 08:47:57 +08:00
Paul Bolle
cb8f05f74f blackfin: bf537: fix typo "CONFIG_SND_SOC_ADV80X_MODULE"
There's a (rather subtle) typo in "CONFIG_SND_SOC_ADV80X_MODULE". Fix it
once and for all by using IS_ENABLED(), which is designed to avoid
issues like this.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
2014-04-12 08:47:56 +08:00
Sonic Zhang
3def9074f9 blackfin: dma: current count mmr is read only
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
2014-04-12 08:47:54 +08:00
Sonic Zhang
3356c99ea3 bfin_crc: Move architecture independant crc header file out of the blackfin folder.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Steven Miao <realmz6@gmail.com>
2014-04-12 08:47:53 +08:00
Steven Miao
ba3b6d7504 bf54x: drop unuesd HOST status,control,timeout registers bit define macros
Signed-off-by: Steven Miao <realmz6@gmail.com>
2014-04-12 08:47:51 +08:00
Steven Miao
a0c1fb2ea7 blackfin: portmux: cleanup head file
drop unused head file
change pinmux request/free macro for backward compatiblity
add function declaration

Signed-off-by: Steven Miao <realmz6@gmail.com>
2014-04-12 08:46:32 +08:00