[PATCH 0/10] Clean up signal code [take #3]

[Franck Bui-Huu <vagabon.xyz@gmail.com>]

Hi Ralf,

Here is the third version of this patchset.
I ran (on a 32-bits kernel _only_) all LTP signal testcases and
they all passed. I haven't time to look at what these tests exactly
do though. 

Changes from take #2:
---------------------
- Do not use save_static_function() anymore
- do not inline handle_signal()

Changes from take #1:
---------------------
- Fix ICACHE_REFILLS_WORKAROUND_WAR usages
- Do not save/restore cp0_status register anymore
- Check impact on performances

Please, consider.

                Franck

---
 arch/mips/kernel/signal-common.h |  194 +++++-----------------
 arch/mips/kernel/signal.c        |  231 +++++++++++++++++++-------
 arch/mips/kernel/signal32.c      |  341 +++++++++++++++-----------------------
 arch/mips/kernel/signal_n32.c    |   34 ++--
 4 files changed, 361 insertions(+), 439 deletions(-)