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| author | Naveen N. Rao <[email protected]> | 2017-06-29 17:49:17 +0000 |
|---|---|---|
| committer | Michael Ellerman <[email protected]> | 2017-07-03 13:12:00 +0000 |
| commit | 266de3a842d70b481ef1dac487acfad1240deb7e (patch) | |
| tree | a449d0478c0d9d357e3d579eb6e207ffd2e0c937 /arch/powerpc/lib/code-patching.c | |
| parent | powerpc/64s: Blacklist system_call() and system_call_common() from kprobes (diff) | |
| download | kernel-266de3a842d70b481ef1dac487acfad1240deb7e.tar.gz kernel-266de3a842d70b481ef1dac487acfad1240deb7e.zip | |
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 <[email protected]>
Reviewed-by: Nicholas Piggin <[email protected]>
Signed-off-by: Naveen N. Rao <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
Diffstat (limited to 'arch/powerpc/lib/code-patching.c')
0 files changed, 0 insertions, 0 deletions