Commit Graph

649779 Commits

Author SHA1 Message Date
Leon Romanovsky
315b41480b IB/i40iw: Remove debug prints after allocation failure
The prints after [k|v][m|z|c]alloc() functions are not needed,
because in case of failure, allocator will print their internal
error prints anyway.

Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-03 13:12:52 -05:00
Leon Romanovsky
9a88f96f21 IB/cxgb4: Remove debug prints after allocation failure
The prints after [k|v][m|z|c]alloc() functions are not needed,
because in case of failure, allocator will print their internal
error prints anyway.

Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-03 13:12:52 -05:00
Leon Romanovsky
51ad2bae21 IB/cxgb3: Remove debug prints after allocation failure
The prints after [k|v][m|z|c]alloc() functions are not needed,
because in case of failure, allocator will print their internal
error prints anyway.

Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-03 13:12:52 -05:00
Leon Romanovsky
5ce9f115bd IB/hfi1: Remove debug prints after allocation failure
The prints after [k|v][m|z|c]alloc() functions are not needed,
because in case of failure, allocator will print their internal
error prints anyway.

Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-03 13:12:52 -05:00
Leon Romanovsky
0886d8f0b7 IB/mlx5: Remove debug prints after allocation failure
The prints after [k|v][m|z|c]alloc() functions are not needed,
because in case of failure, allocator will print their internal
error prints anyway.

Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-03 13:12:52 -05:00
Leon Romanovsky
15d4626e49 IB/mlx4: Remove debug prints after allocation failure
The prints after [k|v][m|z|c]alloc() functions are not needed,
because in case of failure, allocator will print their internal
error prints anyway.

Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-03 13:12:52 -05:00
Leon Romanovsky
aa6aae38f7 IB/core: Release allocated memory in cache setup failure
The failure in ib_cache_setup_one function during
ib_register_device will leave leaked allocated memory.

Fixes: 03db3a2d81 ("IB/core: Add RoCE GID table management")
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-03 13:12:52 -05:00
Leon Romanovsky
a0b3455fcb IB/core: Remove debug prints after allocation failure
The prints after [k|v][m|z|c]alloc() functions are not needed,
because in case of failure, allocator will print their internal
error prints anyway.

Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-03 13:12:52 -05:00
Leon Romanovsky
2716243212 IB/mad: Remove debug prints after allocation failure
The prints after [k|v][m|z|c]alloc() functions are not needed,
because in case of failure, allocator will print their internal
error prints anyway.

Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-03 13:12:52 -05:00
Trond Myklebust
287bd3e954 pNFS: Add a layoutreturn callback to performa layout-private setup
Add a callback to allow the flexfiles layout driver to initialise the
layout private payload.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2016-12-03 13:12:16 -05:00
David S. Miller
2745529ac7 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Couple conflicts resolved here:

1) In the MACB driver, a bug fix to properly initialize the
   RX tail pointer properly overlapped with some changes
   to support variable sized rings.

2) In XGBE we had a "CONFIG_PM" --> "CONFIG_PM_SLEEP" fix
   overlapping with a reorganization of the driver to support
   ACPI, OF, as well as PCI variants of the chip.

3) In 'net' we had several probe error path bug fixes to the
   stmmac driver, meanwhile a lot of this code was cleaned up
   and reorganized in 'net-next'.

4) The cls_flower classifier obtained a helper function in
   'net-next' called __fl_delete() and this overlapped with
   Daniel Borkamann's bug fix to use RCU for object destruction
   in 'net'.  It also overlapped with Jiri's change to guard
   the rhashtable_remove_fast() call with a check against
   tc_skip_sw().

5) In mlx4, a revert bug fix in 'net' overlapped with some
   unrelated changes in 'net-next'.

6) In geneve, a stale header pointer after pskb_expand_head()
   bug fix in 'net' overlapped with a large reorganization of
   the same code in 'net-next'.  Since the 'net-next' code no
   longer had the bug in question, there was nothing to do
   other than to simply take the 'net-next' hunks.

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-03 12:29:53 -05:00
Libin
c02e0349d7 powerpc/ftrace: Fix the comments for ftrace_modify_code
There is no need to worry about module and __init text disappearing
case, because that ftrace has a module notifier that is called when a
module is being unloaded and before the text goes away and this code
grabs the ftrace_lock mutex and removes the module functions from the
ftrace list, such that it will no longer do any modifications to that
module's text, the update to make functions be traced or not is done
under the ftrace_lock mutex as well. And by now, __init section codes
should not been modified by ftrace, because it is black listed in
recordmcount.c and ignored by ftrace.

Suggested-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Li Bin <huawei.libin@huawei.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-12-03 22:10:15 +11:00
William Breathitt Gray
e91c3dfcd3 iio: 104-quad-8: Fix active level mismatch for the preset enable option
The set_to_preset_on_index sysfs attribute provides a boolean
configuration option to enable a preset operation on the respective
channel's counter when Index occurs. However, the corresponding
configuration bit on the Input/Output Control register must be set low
to enable the preset operation.

This patch inverts the internal driver boolean logic exposed via the
set_to_preset_on_index attribute in order to correctly configure the
device which expects an active low bit.

Fixes: 28e5d3bb03 ("iio: 104-quad-8: Add IIO support for the ACCES 104-QUAD-8")
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-12-03 10:08:09 +00:00
William Breathitt Gray
7e1c4058e7 iio: 104-quad-8: Fix off-by-one errors when addressing IOR
The Input/Output Control register (IOR) is offset by 1 from the
respective channel data register. This patch fixes off-by-one errors
when attempting to write to a channel IOR where the base address was not
properly offset.

Fixes: 28e5d3bb03 ("iio: 104-quad-8: Add IIO support for the ACCES 104-QUAD-8")
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-12-03 10:03:07 +00:00
William Breathitt Gray
47af2c676a iio: 104-quad-8: Fix index control configuration
The LS7266R1 requires bits 5 & 6 to be high in order to select the Index
Control Register. This patch fixes a typo that incorrectly selects the
Input/Output Control Register where the Index Control Register was
desired.

Fixes: 28e5d3bb03 ("iio: 104-quad-8: Add IIO support for the ACCES 104-QUAD-8")
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-12-03 10:00:24 +00:00
Carolyn Wyborny
23bb6dc364 i40e: change message to only appear when extra debug info is wanted
This patch changes an X722 informational message so that it only
appears when extra messages are desired.  Without this patch,
on X722 devices, this message appears at load, potentially causing
unnecessary alarm.

Change-ID: I94f7aae15dc5b2723cc9728c630c72538a3e670e
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-12-02 23:37:53 -08:00
Jacob Keller
e5d3220555 i40e/i40evf: replace for memcpy with single memcpy call in ethtool
memcpy replaced with single memcpy call in ethtool.

Change-ID: I3f5bef6bcc593412c56592c6459784db41575a0a
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-12-02 23:35:47 -08:00
Jacob Keller
435c084aad i40e: set broadcast promiscuous mode for each active VLAN
A previous workaround added to ensure receipt of all broadcast frames
incorrectly set the broadcast promiscuous mode unconditionally
regardless of active VLAN status.

Replace this partial workaround with a complete solution that sets the
broadcast promiscuous filters in i40e_sync_vsi_filters. This new method
sets the promiscuous mode based on when broadcast filters are added or
removed.

I40E_VLAN_ANY will request a broadcast filter for all VLANs, (as we're
in untagged mode) while a broadcast filter on a specific VLAN will only
request broadcast for that VLAN.

Thus, we restore addition of broadcast filter to the array, but we add
special handling for these such that they enable the broadcast
promiscuous mode instead of being sent as regular filters.

The end result is that we will correctly receive all broadcast packets
(even those with a *source* address equal to the broadcast address) but
will not receive packets for which we don't have an active VLAN filter.

Change-ID: I7d0585c5cec1a5bf55bf533b42e5e817d5db6a2d
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-12-02 23:32:37 -08:00
Harshitha Ramamurthy
4ad9f4f9e2 i40e: Fix for ethtool Supported link modes
This patch fixes the problem where the ethtool Supported link
modes list backplane interfaces on X722 devices for 10GbE with
SFP+ and Cortina retimer. This patch fixes the problem by setting
and using a flag for this particular device since the backplane
interface is only between the internal PHY and the retimer and it
should not be seen by the user as they cannot use it.
Without this patch, the user wrongly thinks that backplane interfaces
are supported on their device when they actually are not.

Change-ID: I3882bc2928431d48a2db03a51a713a1f681a79e9
Signed-off-by: Harshitha Ramamurthy <harshitha.ramamurthy@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-12-02 23:22:07 -08:00
Jacob Keller
ef4603e82f i40evf: protect against NULL msix_entries and q_vectors pointers
Update the functions which free msix_entries and q_vectors so that they
are safe against NULL values. This allows calling code to not care
whether these have already been freed when disabling and freeing them.

Change-ID: I31bfd1c0da18023d971b618edc6fb049721f3298
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-12-02 23:19:36 -08:00
Henry Tieman
e586bb66b5 i40e: Pass unknown PHY type for unknown PHYs
The PHY type value for unrecognized PHYs and cables was changed
based on firmware version number. Newer hardware use lower firmware
version numbers and this was causing some PHYs to be identified
as type 0x16 instead of 0xe (unknown).

Without this patch, newer card will incorrectly identify unknown
PHYs and cables.

This change adds hardware type to the check for firmware version
so the PHY type is reported correctly.

Change-ID: I0723cbfd263c76fc73ff1a5275d1639051376c9a
Signed-off-by: Henry Tieman <henry.w.tieman@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-12-02 23:15:49 -08:00
Henry Tieman
27e5f25b91 i40e: Remove unreachable code
The code at the end of i40e_read_phy_register_clause22() contained
unreachable code and redundant control statements.

This change removes the unreachable code. And deletes the redundant
goto statement and if statement.

Change-ID: I713032b1585396f40f903cbcfdea987abd874400
Signed-off-by: Henry Tieman <henry.w.tieman@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-12-02 23:13:33 -08:00
Alan Brady
47d2a5d827 i40evf: check for msix_entries null dereference
It is possible for msix_entries to be freed by a previous suspend/remove
before a VF is closed.  This patch fixes the issue by checking for NULL
before dereferencing msix_entries and returning early in the case where
it is NULL within the i40evf_close code path.  Without this patch it is
possible to trigger a kernel panic through NULL dereference.

Change-ID: I92a2746e82533a889e25f91578eac9abd0388ae2
Signed-off-by: Alan Brady <alan.brady@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-12-02 23:10:41 -08:00
Joe Perches
dedecb6d42 i40evf: Move some i40evf_reset_task code to separate function
The i40evf_reset_task function is a couple hundred lines and it has
a separable block that disables VF.  Move that block to a new
i40evf_disable_vf function to shorten i40evf_reset_task a bit.

Signed-off-by: Joe Perches <joe@perches.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-12-02 23:08:48 -08:00
Tushar Dave
2f7679ee2e i40e: fix panic on SPARC while changing num of desc
On SPARC, writel() should not be used to write directly to memory
address but only to memory mapped I/O address otherwise it causes
data access exception.

Commit 147e81ec75 ("i40e: Test memory before ethtool alloc
succeeds") introduced a code that uses memory address to fake the HW
tail address and attempt to write to that address using writel()
causes kernel panic on SPARC. The issue is reproduced while changing
number of descriptors using ethtool.

This change resolves the panic by using HW read-only memory mapped
I/O register to fake HW tail address instead memory address.

e.g.
> ethtool -G eth2 tx 2048 rx 2048
i40e 0000:03:00.2 eth2: Changing Tx descriptor count from 512 to 2048.
i40e 0000:03:00.2 eth2: Changing Rx descriptor count from 512 to 2048
sun4v_data_access_exception: ADDR[fff8001f9734a000] CTX[0000]
TYPE[0004], going.
              \|/ ____ \|/
              "@'/ .. \`@"
              /_| \__/ |_\
                 \__U_/
ethtool(3273): Dax [#1]
CPU: 9 PID: 3273 Comm: ethtool Tainted: G            E
4.8.0-linux-net_temp+ #7
task: fff8001f96d7a660 task.stack: fff8001f97348000
TSTATE: 0000009911001601 TPC: 00000000103189e4 TNPC: 00000000103189e8 Y:
00000000    Tainted: G            E
TPC: <i40e_alloc_rx_buffers+0x124/0x260 [i40e]>
g0: fff8001f4eb64000 g1: 00000000000007ff g2: fff8001f9734b92c g3:
00203e0000000000
g4: fff8001f96d7a660 g5: fff8001fa6704000 g6: fff8001f97348000 g7:
0000000000000001
o0: 0006000046706928 o1: 00000000db3e2000 o2: fff8001f00000000 o3:
0000000000002000
o4: 0000000000002000 o5: 0000000000000001 sp: fff8001f9734afc1 ret_pc:
0000000010318a64
RPC: <i40e_alloc_rx_buffers+0x1a4/0x260 [i40e]>
l0: fff8001f4e8bffe0 l1: fff8001f4e8cffe0 l2: 00000000000007ff l3:
00000000ff000000
l4: 0000000000ff0000 l5: 000000000000ff00 l6: 0000000000cda6a8 l7:
0000000000e822f0
i0: fff8001f96380000 i1: 0000000000000000 i2: 00203edb00000000 i3:
0006000046706928
i4: 0000000002086320 i5: 0000000000e82370 i6: fff8001f9734b071 i7:
00000000103062d4
I7: <i40e_set_ringparam+0x3b4/0x540 [i40e]>
Call Trace:
 [00000000103062d4] i40e_set_ringparam+0x3b4/0x540 [i40e]
 [000000000094e2f8] dev_ethtool+0x898/0xbe0
 [0000000000965570] dev_ioctl+0x250/0x300
 [0000000000923800] sock_do_ioctl+0x40/0x60
 [000000000092427c] sock_ioctl+0x7c/0x280
 [00000000005ef040] vfs_ioctl+0x20/0x60
 [00000000005ef5d4] do_vfs_ioctl+0x194/0x4c0
 [00000000005ef974] SyS_ioctl+0x74/0xa0
 [0000000000406214] linux_sparc_syscall+0x34/0x44
Disabling lock debugging due to kernel taint
Caller[00000000103062d4]: i40e_set_ringparam+0x3b4/0x540 [i40e]
Caller[000000000094e2f8]: dev_ethtool+0x898/0xbe0
Caller[0000000000965570]: dev_ioctl+0x250/0x300
Caller[0000000000923800]: sock_do_ioctl+0x40/0x60
Caller[000000000092427c]: sock_ioctl+0x7c/0x280
Caller[00000000005ef040]: vfs_ioctl+0x20/0x60
Caller[00000000005ef5d4]: do_vfs_ioctl+0x194/0x4c0
Caller[00000000005ef974]: SyS_ioctl+0x74/0xa0
Caller[0000000000406214]: linux_sparc_syscall+0x34/0x44
Caller[0000000000107154]: 0x107154
Instruction DUMP: e43620c8
 e436204a  c45e2038
<c2a083a0> 82102000
 81cfe008  90086001
 82102000  81cfe008

Kernel panic - not syncing: Fatal exception

Signed-off-by: Tushar Dave <tushar.n.dave@oracle.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-12-02 23:06:40 -08:00
Piotr Raczynski
64f5ead95a i40e: Add protocols over MCTP to i40e_aq_discover_capabilities
Add logical_id to I40E_AQ_CAP_ID_MNG_MODE capability starting from major
version 2.

Change-ID: Idb29214b172ea5c70cbd45a99e6745c0215af7e4
Signed-off-by: Piotr Raczynski <piotr.raczynski@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-12-02 22:59:04 -08:00
Jacob Keller
0b7c8b5d54 i40e: fix trivial typo in naming of i40e_sync_filters_subtask
A comment incorrectly referred to i40e_vsi_sync_filters_subtask which
does not actually exist. Reference the correct function instead.

Change-ID: I6bd805c605741ffb6fe34377259bb0d597edfafd
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-12-02 22:56:29 -08:00
Michal Kosiarz
91dc1e5d3d i40e: Add Clause22 implementation
Some external PHYs require Clause22 method for accessing registers.
This patch also adds some defines to support blink led on devices using
10CBaseT PHY.

Change-ID: I868a4326911900f6c89e7e522fda4968b0825f14
Signed-off-by: Michal Kosiarz <michal.kosiarz@intel.com>
Signed-off-by: Matt Jared <matthew.a.jared@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-12-02 22:49:39 -08:00
Jacob Keller
d182a5ca1f i40e: avoid duplicate private flags definitions
Separate the global private flags and the regular private flags per
interface into two arrays. Future additions of private flags will not
need to be duplicated which may lead to buggy code. Also rename
"i40e_priv_flags_strings_gl" to "i40e_gl_priv_flags_strings" for
clarity, as it reads more naturally.

Change-ID: I68caef3c9954eb7da342d7f9d20f2873186f2758
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-12-02 22:40:58 -08:00
Jacob Keller
6a112785fd i40e: remove second check of VLAN_N_VID in i40e_vlan_rx_add_vid
Replace a check of magic number 4095 with VLAN_N_VID. This
makes it obvious that a later check against VLAN_N_VID is
always true and can be removed.

Change-ID: I28998f127a61a529480ce63d8a07e266f6c63b7b
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-12-02 22:38:47 -08:00
Jacob Keller
7429c0bd01 i40e: remove error_param_int label from i40e_vc_config_promiscuous_mode_msg
This label is unnecessary, as are jumping to a block that checks aq_ret
and then immediately skipping it and returning. So just jump straight to
the error_param and remove this unnecessary label.

Also use goto error_param even in the last check for style consistency.

Change-ID: If487c7d10c4048e37c594e5eca167693aaed45f6
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-12-02 22:30:44 -08:00
Alexander Duyck
06fc016c43 i40evf: Be much more verbose about what we can and cannot offload
This change makes it so that we are much more robust about defining what we
can and cannot offload.  Previously we were performing no checks.  This
should bring us up to parity with the i40e PF driver.

In addition the device only supports GSO as long as the MSS is 64 or
greater.  We were not checking this so an MSS less than that was resulting
in Tx hangs.

Change-ID: If533553ec92fc6ba694eab6ac81fdaf3004f3592
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-12-02 22:20:48 -08:00
Alexander Duyck
f114dca253 i40e: Be much more verbose about what we can and cannot offload
This change makes it so that we are much more robust about defining what we
can and cannot offload.  Previously we were just checking for the L4 tunnel
header length, however there are other fields we should be verifying as
there are multiple scenarios in which we cannot perform hardware offloads.

In addition the device only supports GSO as long as the MSS is 64 or
greater.  We were not checking this so an MSS less than that was resulting
in Tx hangs.

Change-ID: I5e2fd5f3075c73601b4b36327b771c64fcb6c31b
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
2016-12-02 22:19:03 -08:00
Trond Myklebust
4d796d751c pNFS: Allow layout drivers to manage private data in struct nfs4_layoutreturn
Cleanup to allow layout drivers to attach private data to layoutreturn,
and manage the data.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2016-12-02 23:37:45 -05:00
Josef Bacik
ef77b51524 nbd: use loff_t for blocksize and nbd_set_size args
If we have large devices (say like the 40t drive I was trying to test with) we
will end up overflowing the int arguments to nbd_set_size and not get the right
size for our device.  Fix this by using loff_t everywhere so I don't have to
think about this again.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2016-12-02 21:06:29 -07:00
Shaohua Li
209200efa3 blk-stat: fix a typo
Signed-off-by: Shaohua Li <shli@fb.com>
Fixes: cf43e6be86 ("block: add scalable completion tracking of requests")
Signed-off-by: Jens Axboe <axboe@fb.com>
2016-12-02 20:17:43 -07:00
Ian Kent
fb5f51c742 vfs: change d_manage() to take a struct path
For the autofs module to be able to reliably check if a dentry is a
mountpoint in a multiple namespace environment the ->d_manage() dentry
operation will need to take a path argument instead of a dentry.

Link: http://lkml.kernel.org/r/20161011053352.27645.83962.stgit@pluto.themaw.net
Signed-off-by: Ian Kent <raven@themaw.net>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Omar Sandoval <osandov@osandov.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-12-02 22:15:53 -05:00
Eric W. Biederman
19339c2516 Revert "evm: Translate user/group ids relative to s_user_ns when computing HMAC"
This reverts commit 0b3c9761d1.

Seth Forshee <seth.forshee@canonical.com> writes:
> All right, I think 0b3c9761d1 should be
> reverted then. EVM is a machine-local integrity mechanism, and so it
> makes sense that the signature would be based on the kernel's notion of
> the uid and not the filesystem's.

I added a commment explaining why the EVM hmac needs to be in the
kernel's notion of uid and gid, not the filesystems to prevent
remounting the filesystem and gaining unwaranted trust in files.

Acked-by: Seth Forshee <seth.forshee@canonical.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2016-12-02 20:58:41 -06:00
Linus Torvalds
3c49de52d5 Merge branch 'akpm' (patches from Andrew)
Merge more fixes from Andrew Morton:
 "2 fixes"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  mm, vmscan: add cond_resched() into shrink_node_memcg()
  mm: workingset: fix NULL ptr in count_shadow_nodes
2016-12-02 18:48:11 -08:00
Michal Hocko
bd041733c9 mm, vmscan: add cond_resched() into shrink_node_memcg()
Boris Zhmurov has reported RCU stalls during the kswapd reclaim:

  INFO: rcu_sched detected stalls on CPUs/tasks:
   23-...: (22 ticks this GP) idle=92f/140000000000000/0 softirq=2638404/2638404 fqs=23
   (detected by 4, t=6389 jiffies, g=786259, c=786258, q=42115)
  Task dump for CPU 23:
  kswapd1         R  running task        0   148      2 0x00000008
  Call Trace:
    shrink_node+0xd2/0x2f0
    kswapd+0x2cb/0x6a0
    mem_cgroup_shrink_node+0x160/0x160
    kthread+0xbd/0xe0
    __switch_to+0x1fa/0x5c0
    ret_from_fork+0x1f/0x40
    kthread_create_on_node+0x180/0x180

a closer code inspection has shown that we might indeed miss all the
scheduling points in the reclaim path if no pages can be isolated from
the LRU list.  This is a pathological case but other reports from Donald
Buczek have shown that we might indeed hit such a path:

        clusterd-989   [009] .... 118023.654491: mm_vmscan_direct_reclaim_end: nr_reclaimed=193
         kswapd1-86    [001] dN.. 118023.987475: mm_vmscan_lru_isolate: isolate_mode=0 classzone=0 order=0 nr_requested=32 nr_scanned=4239830 nr_taken=0 file=1
         kswapd1-86    [001] dN.. 118024.320968: mm_vmscan_lru_isolate: isolate_mode=0 classzone=0 order=0 nr_requested=32 nr_scanned=4239844 nr_taken=0 file=1
         kswapd1-86    [001] dN.. 118024.654375: mm_vmscan_lru_isolate: isolate_mode=0 classzone=0 order=0 nr_requested=32 nr_scanned=4239858 nr_taken=0 file=1
         kswapd1-86    [001] dN.. 118024.987036: mm_vmscan_lru_isolate: isolate_mode=0 classzone=0 order=0 nr_requested=32 nr_scanned=4239872 nr_taken=0 file=1
         kswapd1-86    [001] dN.. 118025.319651: mm_vmscan_lru_isolate: isolate_mode=0 classzone=0 order=0 nr_requested=32 nr_scanned=4239886 nr_taken=0 file=1
         kswapd1-86    [001] dN.. 118025.652248: mm_vmscan_lru_isolate: isolate_mode=0 classzone=0 order=0 nr_requested=32 nr_scanned=4239900 nr_taken=0 file=1
         kswapd1-86    [001] dN.. 118025.984870: mm_vmscan_lru_isolate: isolate_mode=0 classzone=0 order=0 nr_requested=32 nr_scanned=4239914 nr_taken=0 file=1
  [...]
         kswapd1-86    [001] dN.. 118084.274403: mm_vmscan_lru_isolate: isolate_mode=0 classzone=0 order=0 nr_requested=32 nr_scanned=4241133 nr_taken=0 file=1

this is minute long snapshot which didn't take a single page from the
LRU.  It is not entirely clear why only 1303 pages have been scanned
during that time (maybe there was a heavy IRQ activity interfering).

In any case it looks like we can really hit long periods without
scheduling on non preemptive kernels so an explicit cond_resched() in
shrink_node_memcg which is independent on the reclaim operation is due.

Link: http://lkml.kernel.org/r/20161202095841.16648-1-mhocko@kernel.org
Signed-off-by: Michal Hocko <mhocko@suse.com>
Reported-by: Boris Zhmurov <bb@kernelpanic.ru>
Tested-by: Boris Zhmurov <bb@kernelpanic.ru>
Reported-by: Donald Buczek <buczek@molgen.mpg.de>
Reported-by: "Christopher S. Aker" <caker@theshore.net>
Reported-by: Paul Menzel <pmenzel@molgen.mpg.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-02 18:48:03 -08:00
Michal Hocko
20ab67a563 mm: workingset: fix NULL ptr in count_shadow_nodes
Commit 0a6b76dd23 ("mm: workingset: make shadow node shrinker memcg
aware") has made the workingset shadow nodes shrinker memcg aware.  The
implementation is not correct though because memcg_kmem_enabled() might
become true while we are doing a global reclaim when the sc->memcg might
be NULL which is exactly what Marek has seen:

  BUG: unable to handle kernel NULL pointer dereference at 0000000000000400
  IP: [<ffffffff8122d520>] mem_cgroup_node_nr_lru_pages+0x20/0x40
  PGD 0
  Oops: 0000 [#1] SMP
  CPU: 0 PID: 60 Comm: kswapd0 Tainted: G           O   4.8.10-12.pvops.qubes.x86_64 #1
  task: ffff880011863b00 task.stack: ffff880011868000
  RIP: mem_cgroup_node_nr_lru_pages+0x20/0x40
  RSP: e02b:ffff88001186bc70  EFLAGS: 00010293
  RAX: 0000000000000000 RBX: ffff88001186bd20 RCX: 0000000000000002
  RDX: 000000000000000c RSI: 0000000000000000 RDI: 0000000000000000
  RBP: ffff88001186bc70 R08: 28f5c28f5c28f5c3 R09: 0000000000000000
  R10: 0000000000006c34 R11: 0000000000000333 R12: 00000000000001f6
  R13: ffffffff81c6f6a0 R14: 0000000000000000 R15: 0000000000000000
  FS:  0000000000000000(0000) GS:ffff880013c00000(0000) knlGS:ffff880013d00000
  CS:  e033 DS: 0000 ES: 0000 CR0: 0000000080050033
  CR2: 0000000000000400 CR3: 00000000122f2000 CR4: 0000000000042660
  Call Trace:
    count_shadow_nodes+0x9a/0xa0
    shrink_slab.part.42+0x119/0x3e0
    shrink_node+0x22c/0x320
    kswapd+0x32c/0x700
    kthread+0xd8/0xf0
    ret_from_fork+0x1f/0x40
  Code: 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 3b 35 dd eb b1 00 55 48 89 e5 73 2c 89 d2 31 c9 31 c0 4c 63 ce 48 0f a3 ca 73 13 <4a> 8b b4 cf 00 04 00 00 41 89 c8 4a 03 84 c6 80 00 00 00 83 c1
  RIP  mem_cgroup_node_nr_lru_pages+0x20/0x40
   RSP <ffff88001186bc70>
  CR2: 0000000000000400
  ---[ end trace 100494b9edbdfc4d ]---

This patch fixes the issue by checking sc->memcg rather than
memcg_kmem_enabled() which is sufficient because shrink_slab makes sure
that only memcg aware shrinkers will get non-NULL memcgs and only if
memcg_kmem_enabled is true.

Fixes: 0a6b76dd23 ("mm: workingset: make shadow node shrinker memcg aware")
Link: http://lkml.kernel.org/r/20161201132156.21450-1-mhocko@kernel.org
Signed-off-by: Michal Hocko <mhocko@suse.com>
Reported-by: Marek Marczykowski-Górecki <marmarek@mimuw.edu.pl>
Tested-by: Marek Marczykowski-Górecki <marmarek@mimuw.edu.pl>
Acked-by: Vladimir Davydov <vdavydov.dev@gmail.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Balbir Singh <bsingharora@gmail.com>
Cc: <stable@vger.kernel.org>	[4.6+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-02 18:48:03 -08:00
Benjamin Tissoires
ae9979c310 Input: synaptics-rmi4 - store the attn data in the driver
Now that we have a proper API to set the attention data, there is
no point in keeping it in the transport driver.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Andrew Duggan <aduggan@synaptics.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-12-02 17:51:32 -08:00
Benjamin Tissoires
b908d3cd81 Input: synaptics-rmi4 - allow to add attention data
The HID implementation of RMI4 provides the data during
the interrupt (in the input report). We need to provide
a way for this transport driver to provide the attention
data while calling an IRQ.

We use a fifo in rmi_core to not lose any incoming event.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Andrew Duggan <aduggan@synaptics.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-12-02 17:51:31 -08:00
Dennis Wassenberg
e621132f93 Input: synaptics-rmi4 - f03 - grab data passed by transport device
First check if there are data available passed by the transport device.
If data available use these data. If there are no data available
try to read the rmi block if dsata are passed this way.

This is the way the other rmi function handlers will do this.

This patch is needed on HID devices because the firmware reads F03 data
registers and adds them to the HID attention report. Reading those
registers from the driver after the firmware read them will result in
invalid data.

Reviewed-by: Andrew Duggan <aduggan@synaptics.com>
Signed-off-by: Dennis Wassenberg <dennis.wassenberg@secunet.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-12-02 17:51:30 -08:00
Lyude Paul
c5e8848fc9 Input: synaptics-rmi4 - add support for F03
This adds basic functionality for PS/2 passthrough on Synaptics
Touchpads using RMI4 through smbus.

Reviewed-by: Andrew Duggan <aduggan@synaptics.com>
Signed-off-by: Lyude Paul <thatslyude@gmail.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-12-02 17:51:29 -08:00
Len Brown
bc18461816 ACPI: Document _OSI and _REV for Linux BIOS writers
Based on a recent session at the Linux Plumber's Conference,
we need to be more clear about how a BIOS should use _OSI
to properly support Linux.

Signed-off-by: Len Brown <len.brown@intel.com>
Reviewed-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-12-03 02:36:26 +01:00
Pavel Shilovsky
b0a752b5ce CIFS: Decrease verbosity of ioctl call
Cc: Stable <stable@vger.kernel.org> # v4.9+
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
Acked-by: Sachin Prabhu <sprabhu@redhat.com>
Signed-off-by: Pavel Shilovsky <pshilov@microsoft.com>
2016-12-02 16:04:33 -08:00
Nicolas Pitre
8655639240 kbuild: fix building bzImage with CONFIG_TRIM_UNUSED_KSYMS enabled
When building a specific target such as bzImage, modules aren't normally
built.  However if CONFIG_TRIM_UNUSED_KSYMS is enabled, no built modules
means none of the exported symbols are used and therefore they will all
be trimmed away from the final kernel.  A subsequent "make modules" will
fail because modpost cannot find the needed symbols for those modules in
the kernel binary.

Let's make sure modules are also built whenever CONFIG_TRIM_UNUSED_KSYMS
is enabled and that the kernel binary is properly rebuilt accordingly.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
Tested-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-02 14:46:42 -08:00
Stanimir Varbanov
e67af182c2 remoteproc: qcom: mdt_loader: add include for sizes
Add linux/sizes.h to prevent build failure on non ARM architectures
as:

CC [M]  drivers/remoteproc/qcom_mdt_loader.o
In file included from include/linux/cache.h:4:0,
                 from include/linux/printk.h:8,
                 from include/linux/kernel.h:13,
                 from include/asm-generic/bug.h:13,
                 from arch/x86/include/asm/bug.h:35,
                 from include/linux/bug.h:4,
                 from include/linux/thread_info.h:11,
                 from arch/x86/include/asm/elf.h:7,
                 from include/linux/elf.h:4,
                 from drivers/remoteproc/qcom_mdt_loader.c:18:
drivers/remoteproc/qcom_mdt_loader.c: In function ‘qcom_mdt_parse’:
drivers/remoteproc/qcom_mdt_loader.c:90:52: error: ‘SZ_4K’ undeclared
(first use in this function)

Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2016-12-02 14:41:54 -08:00
Linus Torvalds
8dc0f265d3 Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Arnd Bergmann:
 "This should be the last set of bugfixes for arm-soc in v4.9. None of
  these are critical regressions, but it would be nice to still get them
  merged.

   - On the Juno platform, the idle latency was described wrong, leading
     to suboptimal cpuidle tuning.

   - Also on the same platform, PCI I/O space was set up incorrectly and
     could not work.

   - On the sti platform, a syntactically incorrect DT entry caused
     warnings.

   - The newly added 'gr8' platform has somewhat confusing file names,
     which we rename for consistency"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  arm64: dts: juno: fix cluster sleep state entry latency on all SoC versions
  arm64: dts: juno: Correct PCI IO window
  ARM: dts: STiH407-family: fix i2c nodes
  ARM: gr8: Rename the DTSI and relevant DTS
2016-12-02 13:34:37 -08:00