| commit | 2cf2b3b49f10d2f4a0703070fc54ce1cd84a6cda | |
| author | Christoph Hellwig <hch@lst.de> | |
| Fri, 29 Jun 2007 00:57:55 +0000 (29 10:57 +1000) | ||
| committer | Paul Mackerras <paulus@samba.org> | |
| Tue, 3 Jul 2007 05:24:45 +0000 (3 15:24 +1000) | ||
| tree | d8b19ec2df628df8b5b10e2ac4576c28d51b9548 | treesnapshot (tar.gz zip) |
| parent | f3f59bec0c7ad083e9c95a550bcb1e9ca27e25f4 | commitdiff |
[POWERPC] spusched: Update scheduling paramters on every spu_run
Update scheduling information on every spu_run to allow for setting
threads to realtime priority just before running them. This requires
some slightly ugly code in spufs_run_spu because we can just update
the information unlocked if the spu is not runnable, but we need to
acquire the active_mutex when it is runnable to protect against
find_victim. This locking scheme requires opencoding
spu_acquire_runnable in spufs_run_spu which actually is a nice cleanup
all by itself.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Update scheduling information on every spu_run to allow for setting
threads to realtime priority just before running them. This requires
some slightly ugly code in spufs_run_spu because we can just update
the information unlocked if the spu is not runnable, but we need to
acquire the active_mutex when it is runnable to protect against
find_victim. This locking scheme requires opencoding
spu_acquire_runnable in spufs_run_spu which actually is a nice cleanup
all by itself.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>