tracing/function-return-tracer: call prepare_ftrace_return by registers

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Impact: Optimize a bit the function return tracer

This patch changes the calling convention of prepare_ftrace_return to
pass its arguments by register. This will optimize it a bit and
prepare it to support dynamic tracing.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

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Frederic Weisbecker 2008-11-12 22:49:23 +01:00 • committed by Ingo Molnar

parent 62d59d17a5

commit 1dc1c6adf3

2 changed files with 1 additions and 5 deletions

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5

arch/x86/kernel/entry_32.S

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1

arch/x86/kernel/ftrace.c

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