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691,473 commits

Author SHA1 Message Date
James Simmons
eb6e1342ee staging: lustre: selftest: convert srpc_bulk_t to proper struct
Turn typedef srpc_bulk_t to proper structure

Signed-off-by: James Simmons <uja.ornl@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-11 21:00:11 -07:00
Moise Gergaud
82d4eb91ab ASoC: sti: unip reader tdm mode
Here are the changes to enable reader tdm mode:
- When TDM_ENABLE is set to 1, the i2s format should be automatically
configured. Unfortunately this is not the case (HW bug). Then, we shall
force DATA_SIZE setting.
- Compute the transfer size for tdm mode: transfer size = user frame size
- Manage tdm slots configuration given in DT.
- Refine the hw param (channels & format) according to tdm slot config.

Signed-off-by: Moise Gergaud <moise.gergaud@st.com>
Acked-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-04-12 04:59:09 +01:00
Moise Gergaud
8d8b1e2edd ASoC: sti: unip player tdm mode
here are the changes to enable player tdm mode:
- When TDM_ENABLE is set to 1, the i2s format should be automatically
configured. Unfortunately this is not the case (HW bug). Then, we shall
force DATA_SIZE setting.
- Compute the transfer size for tdm mode: transfer size = user frame size
- Manage tdm slots configuration given in DT.
- Don't use mclk-fs when unip in tdm mode; use tdm slot config to compute
frame size and to set mclk rate.
- Refine the hw param (channels & format) according to tdm slot config.

Signed-off-by: Moise Gergaud <moise.gergaud@st.com>
Acked-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-04-12 04:59:09 +01:00
Moise Gergaud
7219978766 ASoC: sti: helper functions to fix tdm runtime params
Signed-off-by: Moise Gergaud <moise.gergaud@st.com>
Acked-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-04-12 04:59:09 +01:00
Moise Gergaud
44f948bdb1 ASoC: sti: helper functions for unip tdm slots configuration
- sti_uniperiph_set_tdm_slot: store tdm slot config in unip context
- sti_uniperiph_get_tdm_word_pos: configure unip tdm slots pos regs

Signed-off-by: Moise Gergaud <moise.gergaud@st.com>
Acked-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-04-12 04:59:09 +01:00
James Simmons
8607338f3d staging: lustre: selftest: convert srpc_event_t to proper struct
Turn typedef srpc_event_t to proper structure

Signed-off-by: James Simmons <uja.ornl@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-11 20:58:20 -07:00
James Simmons
c22594f6b1 staging: lustre: selftest: convert srpc_event_type to proper enum
Turn tyepdef srpc_event_type to proper enum

Signed-off-by: James Simmons <uja.ornl@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-11 20:55:12 -07:00
Sudip Mukherjee
0888f388e6 staging/lustre/obdclass: fix build warning
While building with W=1 we were getting the warning:

drivers/staging/lustre/lustre/obdclass/cl_object.c:1056:16:
	warning: old-style function definition
 struct lu_env *cl_env_percpu_get()
                ^

Signed-off-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Acked-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-11 20:55:12 -07:00
Linus Walleij
d7e2ee2570 spi: let SPI masters ignore their children for PM
Let all SPI masters ignore their children: when it comes
to power management: SPI children have no business doing
keeping their parents awake: they are completely autonomous
devices that just use their parent to talk, and the latter
usecase must be power managed by the host itself on a
per-message basis.

Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-04-12 04:48:31 +01:00
Sebastien Buisson
19c551482a staging: lustre: fix 'no effect' errors
Fix 'no effect' issues found by Coverity version 6.5.1:

Unsigned compared against 0 (NO_EFFECT)
This greater-than-or-equal-to-zero comparison of an unsigned value
is always true.

Remove useless cast.

Signed-off-by: Sebastien Buisson <sbuisson@ddn.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3907
Reviewed-on: http://review.whamcloud.com/7166
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-11 20:47:10 -07:00
Jinshan Xiong
e179800665 staging: lustre: hsm: Add support to drop all pages for ll_data_version
This will be used by HSM release to get data version and drop all
caching pages from all clients, before sending IT_RELEASE close
REQ to MDT.

Signed-off-by: Jinshan Xiong <jinshan.xiong@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3647
Reviewed-on: http://review.whamcloud.com/6794
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Aurelien Degremont <aurelien.degremont@cea.fr>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-11 20:47:10 -07:00
Jinshan Xiong
e55a68b6ea staging: lustre: llite: cancel open lock before closing file
In error handling path of ll_lease_open(), och has already been
freed in ll_close_inode_openhandle() so the sequence of cancel
open lock and close open handle need adjusting.

Signed-off-by: Jinshan Xiong <jinshan.xiong@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3647
Reviewed-on: http://review.whamcloud.com/7346
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-11 20:47:10 -07:00
Sebastien Buisson
0fcd869f9e staging: lustre: fix 'NULL pointer dereference' errors
Fix 'NULL pointer dereference' defects found by Coverity version
6.5.0:
Dereference after null check (FORWARD_NULL)
For instance, Passing null pointer to a function which dereferences
it.
Dereference before null check (REVERSE_INULL)
Null-checking variable suggests that it may be null, but it has
already been dereferenced on all paths leading to the check.
Dereference null return value (NULL_RETURNS)

Signed-off-by: Sebastien Buisson <sbuisson@ddn.com>
Signed-off-by: James Nunez <james.a.nunez@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3042
Reviewed-on: http://review.whamcloud.com/5868
Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-11 20:47:10 -07:00
JC Lafoucriere
a7a9ed4b5d staging: lustre: hsm: Add CLF_RENAME_LAST flag
Create a special flag for the last rename event.

Signed-off-by: JC Lafoucriere <jacques-charles.lafoucriere@cea.fr>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3718
Reviewed-on: http://review.whamcloud.com/7260
Reviewed-by: Jinshan Xiong <jinshan.xiong@intel.com>
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-11 20:47:10 -07:00
Ned Bass
6a1938d958 staging: lustre: mdc: document mdc_rpc_lock
As this lock can be a bottleneck, clarifying why it is needed may be
helpful to those working on client performance.

Signed-off-by: Ned Bass <bass6@llnl.gov>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3443
Reviewed-on: http://review.whamcloud.com/6593
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Keith Mannthey <keith.mannthey@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-11 20:47:10 -07:00
Gaurav Mahajan
46dfb5aa98 staging: lustre: llite: Delaying creation of client side proc entries.
In client_common_fill_super() proc entries are created before
before cl_sb_init() and therefore lu_site is not allocated resulting
in client crash when tried reading lu_site stats.
Delaying creation of proc entries after creation of all required data
structures fixed the problem.

Signed-off-by: Gaurav Mahajan <gmahajan@ddn.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-2941
Reviewed-on: http://review.whamcloud.com/6852
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Emoly Liu <emoly.liu@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-11 20:47:10 -07:00
Swapnil Pimpale
98b29828b7 staging: lustre: lov: Get the correct address of lmm_objects
The introduction of lmm_layout_gen makes the assumption that
lmm_objects is present after lmm_stripe_count incorrect.
Fixed this to get the correct address of lmm_objects when lmmk is cast
to lov_mds_md_v1.

Signed-off-by: Swapnil Pimpale <spimpale@ddn.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3162
Reviewed-on: http://review.whamcloud.com/7258
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-11 20:47:04 -07:00
Aurelien Degremont
c5300d55e2 staging: lustre: hsm: copy start error should set HP_FLAG_COMPLETED
If an error occurs when initializing a HSM request, in
ll_ioc_copy_start(), the PROGRESS message, sent to coordinator, should
carry the error code but also HP_FLAG_COMPLETED to mark the request as
finished (with error). If not, the Coordinator will ignore this
message and consider the request is still running.

Signed-off-by: Aurelien Degremont <aurelien.degremont@cea.fr>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3685
Reviewed-on: http://review.whamcloud.com/7265
Reviewed-by: Jinshan Xiong <jinshan.xiong@intel.com>
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-11 20:47:04 -07:00
JC Lafoucriere
18ecab0d95 staging: lustre: hsm: rename hai_zero() HSM function
rename hai_zero() to hai_first(). Use a better name for hai helper

Signed-off-by: JC Lafoucriere <jacques-charles.lafoucriere@cea.fr>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3709
Reviewed-on: http://review.whamcloud.com/7254
Reviewed-by: Jinshan Xiong <jinshan.xiong@intel.com>
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-11 20:47:04 -07:00
Jinshan Xiong
ead0280835 staging: lustre: hsm: Fix lu_ref for lease handle
The lu_ref was not being decremented when releasing the
lease handle.

Signed-off-by: Jinshan Xiong <jinshan.xiong@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3647
Reviewed-on: http://review.whamcloud.com/7243
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: jacques-Charles Lafoucriere <jacques-charles.lafoucriere@cea.fr>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-11 20:47:04 -07:00
Jinshan Xiong
83c61a5c54 staging: lustre: libcfs: make D_HSM a unique value
Redefine D_HSM. It was defined to D_TRACE.

Signed-off-by: Jinshan Xiong <jinshan.xiong@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3647
Reviewed-on: http://review.whamcloud.com/7243
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: jacques-Charles Lafoucriere <jacques-charles.lafoucriere@cea.fr>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-11 20:47:04 -07:00
Jinshan Xiong
6f11cd978e staging: lustre: libcfs: create array of debug names
Instead of a using a growing case statement to handle
more debugging options create a array to map debug
flags to string names.

Signed-off-by: Jinshan Xiong <jinshan.xiong@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3647
Reviewed-on: http://review.whamcloud.com/7243
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: jacques-Charles Lafoucriere <jacques-charles.lafoucriere@cea.fr>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-11 20:47:04 -07:00
Jinshan Xiong
66fbe4ef96 staging: lustre: libcfs: remove userland comments in libcfs_debug.h
Remove comments about userland use.

Signed-off-by: Jinshan Xiong <jinshan.xiong@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3647
Reviewed-on: http://review.whamcloud.com/7243
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: jacques-Charles Lafoucriere <jacques-charles.lafoucriere@cea.fr>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-11 20:47:04 -07:00
Niu Yawei
d467220e61 staging: lustre: llite: use 64bits flags in ll_lov_setea()
In ll_lov_setea(), setting MDS_OPEN_HAS_OBJS to an int flags will
result in the flags being overflowed.

Signed-off-by: Niu Yawei <yawei.niu@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3744
Reviewed-on: http://review.whamcloud.com/7312
Reviewed-by: Emoly Liu <emoly.liu@intel.com>
Reviewed-by: Jian Yu <jian.yu@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-11 20:47:04 -07:00
Sebastien Buisson
0715f9417a staging: lustre: ldlm: fix 'deadcode' errors
Fix 'deadcode' issues found by Coverity version 6.5.1:
Logically dead code (DEADCODE)
Execution cannot reach this statement.

Signed-off-by: Sebastien Buisson <sbuisson@ddn.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3097
Reviewed-on: http://review.whamcloud.com/7167
Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com>
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-11 20:47:04 -07:00
Oleg Drokin
7f2d15bb58 staging/lustre: Get rid of ldlm_policy_res_t typedef
Directly use enum ldlm_policy_res everywhere.

Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-11 20:44:17 -07:00
Oleg Drokin
da5ecb4dfd staging/lustre: Fix braces {} style
This fixes all checkpatch form of this from the Lustre tree:
CHECK: braces {} should be used on all arms of this statement

Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-11 20:44:03 -07:00
Moise Gergaud
9a00a3e9fe ASoC: sti: define tdm type & default tdm hw config
Signed-off-by: Moise Gergaud <moise.gergaud@st.com>
Acked-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-04-12 02:58:59 +01:00
Moise Gergaud
5295a0dc31 ASoC: sti: rename unip player type into common player & reader type
Signed-off-by: Moise Gergaud <moise.gergaud@st.com>
Acked-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-04-12 02:58:59 +01:00
Moise Gergaud
38535e8e69 ASoC: sti: macro for uniperif tdm regs access
Signed-off-by: Moise Gergaud <moise.gergaud@st.com>
Acked-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-04-12 02:58:59 +01:00
Evgeniy Borisov
b490503896 greybus: camera-gb: Extend the configure streams interface
Extending the configure streams interface with CSI params.
Getting CSI frequency data form configure streams response.
 * num_lanes - Number of CSI data lanes
 * clk_freq - CSI clock frequency in Hz
 * lines_per_second - Total number of lines in a second of
transmission (blanking included)

From the AP side we need to know for the CSI speed
configuration. This information is needed for dynamically
bandwidth calculations.

NOTE: Change should be along merged with corresponding
      interface change in kernel:
      "camera: Extend the configure streams
      interface with CSI params"

Signed-off-by: Evgeniy Borisov <eborisov@mm-sol.com>
Reviewed-by: Gjorgji Rosikopulos <grosikopulos@mm-sol.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2016-04-11 18:47:57 -07:00
stephen hemminger
1ecf689013 devlink: add missing install of header
The new devlink.h in uapi was not being installed by
make headers_install

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-11 21:33:44 -04:00
Shawn Guo
69c542e802 clk: imx: vf610: fix whitespace in vf610-clock.h
There is whitespace in VF610_CLK_OCOTP line.  Fix it.

Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-04-12 09:31:08 +08:00
Peter Griffin
26d5192953 ARM: rockchip: Fix use of plain integer as NULL pointer
This fixes the following sparse build warning:

     mach-rockchip/platsmp.c:68:43: Using plain integer as NULL pointer

Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-04-12 03:30:30 +02:00
Shawn Lin
4506697d9f soc: rockchip: power-domain: check the existing of regmap
Check return value of syscon_node_to_regmap for
rockchip_pm_domain_probe. If err value is returned, probe
procedure should abort.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-04-12 03:28:08 +02:00
Stefan Agner
afd7350a9a clk: imx: vf610: add TCON ipg clock
Add the ipg (bus) clock for the TCON modules (Timing Controller). This
module is required by the new DCU DRM driver, since the display signals
pass through TCON.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-04-12 09:22:17 +08:00
Stefan Agner
3218b21ab0 clk: imx: vf610: fix DCU clock tree
Similar to an earlier fix for the SAI clocks, the DCU clock hierarchy
mixes the bus clock with the display controllers pixel clock. Tests
have shown that the gates in CCM_CCGR3/9 registers do not control
the DCU pixel clock, but only the register access clock (bus clock).

Fix this by defining the parent clock of VF610_CLK_DCUx to be the bus
clock (ipg_bus).

Since the clock has not been used far, there are no further changes
needed.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-04-12 09:21:53 +08:00
Akinobu Mita
8070954d7c spi: omap2-mcspi: Undo broken fix for dma transfer of vmalloced buffer
This reverts commit 3525e0aac9.

The DMA transfer for RX buffer was not handled correctly in this change.

The actual transfer length for DMA RX can be less than xfer->len in the
specific condition and the last words will be filled after the DMA
completion, but the commit doesn't consider it and the dmaengine is
started with rx_sg mapped by spi core.

The solution for this at least requires more lines than this commit
has inserted.  So revert it for now.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-04-12 02:21:14 +01:00
Arnaldo Carvalho de Melo
00768a2bd3 perf trace: Print unresolved symbol names as addresses
Instead of having "[unknown]" as the name used for unresolved symbols,
use the address in the callchain, in hexadecimal form:

  28.801 ( 0.007 ms): qemu-system-x8/10065 ppoll(ufds: 0x55c98b39e400, nfds: 72, tsp: 0x7fffe4e4fe60, sigsetsize: 8) = 0 Timeout
                                     ppoll+0x91 (/usr/lib64/libc-2.22.so)
                                     [0x337309] (/usr/bin/qemu-system-x86_64)
                                     [0x336ab4] (/usr/bin/qemu-system-x86_64)
                                     main+0x1724 (/usr/bin/qemu-system-x86_64)
                                     __libc_start_main+0xf0 (/usr/lib64/libc-2.22.so)
                                     [0xc59a9] (/usr/bin/qemu-system-x86_64)
  35.265 (14.805 ms): gnome-shell/2287  ... [continued]: poll()) = 1
                                     [0xf6fdd] (/usr/lib64/libc-2.22.so)
                                     g_main_context_iterate.isra.29+0x17c (/usr/lib64/libglib-2.0.so.0.4600.2)
                                     g_main_loop_run+0xc2 (/usr/lib64/libglib-2.0.so.0.4600.2)
                                     meta_run+0x2c (/usr/lib64/libmutter.so.0.0.0)
                                     main+0x3f7 (/usr/bin/gnome-shell)
                                     __libc_start_main+0xf0 (/usr/lib64/libc-2.22.so)
                                     [0x2909] (/usr/bin/gnome-shell)

Suggested-by: Milian Wolff <milian.wolff@kdab.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-fja1ods5vqpg42mdz09xcz3r@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-04-11 22:18:25 -03:00
Arnaldo Carvalho de Melo
fd4be13067 perf evsel: Allow unresolved symbol names to be printed as addresses
The fprintf_sym() and fprintf_callchain() methods now allow users to
change the existing behaviour of showing "[unknown]" as the name of
unresolved symbols to instead show "[0x123456]", i.e. its address.

The current patch doesn't change tools to use this facility, the results
from 'perf trace' and 'perf script' cotinue like:

70.109 ( 0.001 ms): qemu-system-x8/10153 poll(ufds: 0x7f2d93ffe870, nfds: 1) = 0 Timeout
                                   [unknown] (/usr/lib64/libc-2.22.so)
                                   [unknown] (/usr/lib64/libspice-server.so.1.10.0)
                                   [unknown] (/usr/lib64/libspice-server.so.1.10.0)
                                   [unknown] (/usr/lib64/libspice-server.so.1.10.0)
                                   start_thread+0xca (/usr/lib64/libpthread-2.22.so)
                                   __clone+0x6d (/usr/lib64/libc-2.22.so)

The next patch will make 'perf trace' use the new formatting.

Suggested-by: Milian Wolff <milian.wolff@kdab.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-fja1ods5vqpg42mdz09xcz3r@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-04-11 22:18:24 -03:00
Arnaldo Carvalho de Melo
fde54b7860 perf trace: Make "--call-graph" affect just "raw_syscalls:sys_exit"
We don't need the callchains at the syscall enter tracepoint, just when
finishing it at syscall exit, so reduce the overhead by asking for
callchains just at syscall exit.

Suggested-by: Milian Wolff <milian.wolff@kdab.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-fja1ods5vqpg42mdz09xcz3r@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-04-11 22:18:23 -03:00
Arnaldo Carvalho de Melo
01e0d50c3f perf evsel: Rename config_callgraph() to config_callchain() and make it public
The rename is for consistency with the parameter name.

Make it public for fine grained control of which evsels should have
callchains enabled, like, for instance, will be done in the next
changesets in 'perf trace', to enable callchains just on the
"raw_syscalls:sys_exit" tracepoint.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-og8vup111rn357g4yagus3ao@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-04-11 22:18:23 -03:00
Arnaldo Carvalho de Melo
22c8a376b5 perf evlist: Add (reset,set)_sample_bit methods
For fiddling with sample_type fields in all evsels in an evlist.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-dg6yavctt0hzl2tsgfb43qsr@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-04-11 22:18:21 -03:00
Arnaldo Carvalho de Melo
e68ae9cf7d perf evsel: Do not use globals in config()
Instead receive a callchain_param pointer to configure callchain
aspects, not doing so if NULL is passed.

This will allow fine grained control over which evsels in an evlist
gets callchains enabled.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-2mupip6khc92mh5x4nw9to82@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-04-11 22:18:20 -03:00
Arnaldo Carvalho de Melo
44621819dd perf trace: Exclude the kernel part of the callchain leading to a syscall
The kernel parts are not that useful:

  # trace -m 512 -e nanosleep --call dwarf  usleep 1
     0.065 ( 0.065 ms): usleep/18732 nanosleep(rqtp: 0x7ffc4ee4e200) = 0
                                       syscall_slow_exit_work ([kernel.kallsyms])
                                       do_syscall_64 ([kernel.kallsyms])
                                       return_from_SYSCALL_64 ([kernel.kallsyms])
                                       __nanosleep (/usr/lib64/libc-2.22.so)
                                       usleep (/usr/lib64/libc-2.22.so)
                                       main (/usr/bin/usleep)
                                       __libc_start_main (/usr/lib64/libc-2.22.so)
                                       _start (/usr/bin/usleep)
  #

So lets just use perf_event_attr.exclude_callchain_kernel to avoid
collecting it in the ring buffer:

  # trace -m 512 -e nanosleep --call dwarf  usleep 1
     0.063 ( 0.063 ms): usleep/19212 nanosleep(rqtp: 0x7ffc3df10fb0) = 0
                                       __nanosleep (/usr/lib64/libc-2.22.so)
                                       usleep (/usr/lib64/libc-2.22.so)
                                       main (/usr/bin/usleep)
                                       __libc_start_main (/usr/lib64/libc-2.22.so)
                                       _start (/usr/bin/usleep)
  #

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-qctu3gqhpim0dfbcp9d86c91@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-04-11 22:18:19 -03:00
Arnaldo Carvalho de Melo
ea4539652e perf evsel: Introduce fprintf_callchain() method out of fprintf_sym()
In 'perf trace' we're just interested in printing callchains, and we
don't want to use the symbol_conf.use_callchain, so move the callchain
part to a new method.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-kcn3romzivcpxb3u75s9nz33@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-04-11 22:18:18 -03:00
Arnaldo Carvalho de Melo
ff0c107806 perf evsel: Rename print_ip() to fprintf_sym()
As it receives a FILE, and its more than just the IP, which can even be
requested not to be printed.

For consistency with other similar methods in tools/perf/, name it as
perf_evsel__fprintf_sym() and make it return the number of bytes
printed, just like 'fprintf(3)'

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-84gawlqa3lhk63nf0t9vnqnn@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-04-11 22:18:17 -03:00
Milian Wolff
566a08859f perf trace: Add support for printing call chains on sys_exit events.
Now, one can print the call chain for every encountered sys_exit event,
e.g.:

    $ perf trace -e nanosleep --call-graph dwarf path/to/ex_sleep
    1005.757 (1000.090 ms): ex_sleep/13167 nanosleep(...) = 0
                                             syscall_slow_exit_work ([kernel.kallsyms])
                                             syscall_return_slowpath ([kernel.kallsyms])
                                             int_ret_from_sys_call ([kernel.kallsyms])
                                             __nanosleep (/usr/lib/libc-2.23.so)
                                             [unknown] (/usr/lib/libQt5Core.so.5.6.0)
                                             QThread::sleep (/usr/lib/libQt5Core.so.5.6.0)
                                             main (path/to/ex_sleep)
                                             __libc_start_main (/usr/lib/libc-2.23.so)
                                             _start (path/to/ex_sleep)

Note that it is advised to increase the number of mmap pages to prevent
event losses when using this new feature. Often, adding `-m 10M` to the
`perf trace` invocation is enough.

This feature is also available in strace when built with libunwind via
`strace -k`. Performance wise, this solution is much better:

    $ time find path/to/linux &> /dev/null

    real    0m0.051s
    user    0m0.013s
    sys     0m0.037s

    $ time perf trace -m 800M --call-graph dwarf find path/to/linux &> /dev/null

    real    0m2.624s
    user    0m1.203s
    sys     0m1.333s

    $ time strace -k find path/to/linux  &> /dev/null

    real    0m35.398s
    user    0m10.403s
    sys     0m23.173s

Note that it is currently not possible to configure the print output.
Adding such a feature, similar to what is available in `perf script` via
its `--fields` knob can be added later on.

Signed-off-by: Milian Wolff <milian.wolff@kdab.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
LPU-Reference: 1460115255-17648-1-git-send-email-milian.wolff@kdab.com
[ Split from a larger patch, do not print the IP, left align,
  remove dup call symbol__init(), added man page entry ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-04-11 22:18:16 -03:00
Arnaldo Carvalho de Melo
db3617f362 perf evsel: Allow passing a left alignment when printing a symbol
For callchains, etc where we want it to align just below the syscall
name, for instance, in 'perf trace'

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-uk9ekchd67651c625ltaur5y@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-04-11 22:18:15 -03:00
Milian Wolff
6186de9a49 perf evsel: Allow specifying a file to output in perf_evsel__print_ip
As this function will be used in 'perf trace'.

Cc: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/n/tip-8x297v9utnxq77onikevvlse@git.kernel.org
[ Split from a larger patch ]
Signed-off-by: Milian Wolff <milian.wolff@kdab.com>
2016-04-11 22:18:14 -03:00