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linux/arch/sparc
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Liam R. Howlett 48078d2dac sparc/ftrace: Fix ftrace graph time measurement 
The ftrace function_graph time measurements of a given function is not
accurate according to those recorded by ftrace using the function
filters.  This change pulls the x86_64 fix from 'commit 722b3c7469
("ftrace/graph: Trace function entry before updating index")' into the
sparc specific prepare_ftrace_return which stops ftrace from
counting interrupted tasks in the time measurement.

Example measurements for select_task_rq_fair running "hackbench 100
process 1000":

              |  tracing/trace_stat/function0  |  function_graph
 Before patch |  2.802 us                      |  4.255 us
 After patch  |  2.749 us                      |  3.094 us

Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
History 2017-05-17 12:07:47 -07:00
..
boot sparc: Add "install" target 2014-08-04 20:45:59 -07:00
configs sparc64:Support User Probes for sparc 2016-12-11 18:01:51 -08:00
crypto crypto: sparc - initialize blkcipher.ivsize 2015-10-08 21:36:48 +08:00
include sparc: Fix -Wstringop-overflow warning 2017-05-17 12:07:46 -07:00
kernel sparc/ftrace: Fix ftrace graph time measurement 2017-05-17 12:07:47 -07:00
lib sparc64: fix fault handling in NGbzero.S and GENbzero.S 2017-05-09 12:16:25 -07:00
math-emu Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
mm sparc: Fix -Wstringop-overflow warning 2017-05-17 12:07:46 -07:00
net sparc64: Fix BPF JIT wrt. branches and ldimm64 instructions. 2017-05-01 20:48:36 -07:00
oprofile sparc: using HZ needs an include of linux/param.h 2009-10-05 00:46:08 -07:00
power Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc 2014-10-11 20:36:34 -04:00
prom sparc: fixing ident and beautifying code 2016-10-06 01:46:40 -04:00
Kbuild sparc64: Add SHA1 driver making use of the 'sha1' instruction. 2012-08-20 15:08:49 -07:00
Kconfig Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2017-05-02 16:40:27 -07:00
Kconfig.debug lib: consolidate DEBUG_STACK_USAGE option 2011-05-25 08:39:54 -07:00
Makefile sparc32: Add -Wa,-Av8 to KBUILD_CFLAGS. 2016-03-01 00:24:04 -05:00