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H A Dspufs.h079cdb61 Tue Feb 13 14:54:23 CST 2007 Christoph Hellwig <hch@lst.de> [POWERPC] spufs: runqueue simplification

This is the biggest patch in this series, and it reworks the guts of
the spu scheduler runqueue mechanism:

- instead of embedding a waitqueue in the runqueue there is now a
simple doubly-linked list, the actual wakeups happen by reusing
the stop_wq in the spu context (maybe we should rename it one day)
- spu_free and spu_prio_wakeup are merged into a single spu_reschedule
function
- various functionality is split out into small helpers, and kerneldoc
comments are added in various places to document what's going on.
- spu_activate is rewritten into a tight loop by removing test for
various impossible conditions and using the infrastructure in this
patch.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
079cdb61 Tue Feb 13 14:54:23 CST 2007 Christoph Hellwig <hch@lst.de> [POWERPC] spufs: runqueue simplification

This is the biggest patch in this series, and it reworks the guts of
the spu scheduler runqueue mechanism:

- instead of embedding a waitqueue in the runqueue there is now a
simple doubly-linked list, the actual wakeups happen by reusing
the stop_wq in the spu context (maybe we should rename it one day)
- spu_free and spu_prio_wakeup are merged into a single spu_reschedule
function
- various functionality is split out into small helpers, and kerneldoc
comments are added in various places to document what's going on.
- spu_activate is rewritten into a tight loop by removing test for
various impossible conditions and using the infrastructure in this
patch.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
H A Dsched.c079cdb61 Tue Feb 13 14:54:23 CST 2007 Christoph Hellwig <hch@lst.de> [POWERPC] spufs: runqueue simplification

This is the biggest patch in this series, and it reworks the guts of
the spu scheduler runqueue mechanism:

- instead of embedding a waitqueue in the runqueue there is now a
simple doubly-linked list, the actual wakeups happen by reusing
the stop_wq in the spu context (maybe we should rename it one day)
- spu_free and spu_prio_wakeup are merged into a single spu_reschedule
function
- various functionality is split out into small helpers, and kerneldoc
comments are added in various places to document what's going on.
- spu_activate is rewritten into a tight loop by removing test for
various impossible conditions and using the infrastructure in this
patch.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
079cdb61 Tue Feb 13 14:54:23 CST 2007 Christoph Hellwig <hch@lst.de> [POWERPC] spufs: runqueue simplification

This is the biggest patch in this series, and it reworks the guts of
the spu scheduler runqueue mechanism:

- instead of embedding a waitqueue in the runqueue there is now a
simple doubly-linked list, the actual wakeups happen by reusing
the stop_wq in the spu context (maybe we should rename it one day)
- spu_free and spu_prio_wakeup are merged into a single spu_reschedule
function
- various functionality is split out into small helpers, and kerneldoc
comments are added in various places to document what's going on.
- spu_activate is rewritten into a tight loop by removing test for
various impossible conditions and using the infrastructure in this
patch.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>