On Feb 18, 2010, at 7:45 AM, Anton Vorontsov wrote: > Interrupt controllers' hooks are executed in the atomic context, so > they are not permitted to sleep (with RT kernels non-raw spinlocks are > sleepable). So, socrates_fpga_pic_lock has to be a real (non-sleepable) > spinlock. > > Signed-off-by: Anton Vorontsov <avoront...@ru.mvista.com> > --- > > On Thu, Feb 18, 2010 at 12:22:18PM -0000, Thomas Gleixner wrote: >> Ben, >> >> the following patch series is from preempt-rt. It converts the locks >> which need to be real spinlocks in -rt to raw_spinlocks. >> >> There is no behaviourial change for !RT kernels because spinlocks and >> raw_spinlocks are the same on !RT. So for mainline this is a pure >> annotation while having it in mainline takes the burden of keeping up >> with the code changes from the RT patch set. >> >> Please consider to merge into .34. > > Oh, and I guess the same for the socrates fpga pic... > > arch/powerpc/platforms/85xx/socrates_fpga_pic.c | 34 +++++++++++----------- > 1 files changed, 17 insertions(+), 17 deletions(-)
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