[Blackfin] arch: a rather old performance improvement for the signal handling code

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This is a rather old performance improvement for the signal handling
code, which was originally only committed on the 2007R1 branch as a
workaround for what we suspected to be a hardware bug.

There's no point in constructing a sigreturn stub on the stack and
flushing caches; we can just make signal handlers return to a known
location in the fixed code area.

Signed-off-by: Bernd Schmidt <bernds_cb1@t-online.de>
Signed-off-by: Bryan Wu <cooloney@kernel.org>

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Bernd Schmidt 2008-04-24 02:51:36 +08:00 • committed by Bryan Wu

parent 5af29f5958

commit 697a9d65aa

1 changed files with 4 additions and 16 deletions

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arch/blackfin/kernel/signal.c

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