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| author | Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> | 2017-06-29 20:49:17 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-07-03 16:12:00 +0300 |
| commit | 266de3a842d70b481ef1dac487acfad1240deb7e (patch) | |
| tree | a449d0478c0d9d357e3d579eb6e207ffd2e0c937 /tools/perf/scripts/python/export-to-sqlite.py | |
| parent | cf7d6fb0672668690ba235280698c9aa6a81010a (diff) | |
| download | linux-266de3a842d70b481ef1dac487acfad1240deb7e.tar.xz | |
powerpc/64s: Move system_call() symbol to just after setting MSR_EE
It is common to get a PMU interrupt right after the mtmsr instruction that
enables interrupts. Due to this, the stack trace profile gets needlessly split
across system_call_common() and system_call().
Previously, system_call() symbol was at the current place to hide a few
earlier symbols which have since been made private or removed entirely.
So, let's move system_call() slightly higher up, right after the mtmsr
instruction that enables interrupts. Convert existing references to
system_call to a local syscall symbol.
Suggested-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'tools/perf/scripts/python/export-to-sqlite.py')
0 files changed, 0 insertions, 0 deletions