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| author |   Arnd Bergmann <arnd@arndb.de> | 2006-01-04 20:31:24 +0100 |
|---|---|---|
| committer |   Paul Mackerras <paulus@samba.org> | 2006-01-09 15:44:39 +1100 |
| commit | 5ef8224aaa9220bfecb362f0802cf78aad47c02a (patch) | |
| tree | 3288b9510d4ab36d627cf85f1b4160a6d8ff9823 /arch/powerpc/platforms/cell/spufs/spufs.h | |
| parent | [PATCH] spufs: check for proper file pointer in sys_spu_run (diff) | |
| download | linux-dev-5ef8224aaa9220bfecb362f0802cf78aad47c02a.tar.xz linux-dev-5ef8224aaa9220bfecb362f0802cf78aad47c02a.zip | |
[PATCH] spufs: serialize sys_spu_run per spu
During an earlier cleanup, we lost the serialization
of multiple spu_run calls performed on the same
spu_context. In order to get this back, introduce a
mutex in the spu_context that is held inside of spu_run.
Noticed by Al Viro.
Signed-off-by: Arnd Bergmann <arndb@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/platforms/cell/spufs/spufs.h')
| -rw-r--r-- | arch/powerpc/platforms/cell/spufs/spufs.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/cell/spufs/spufs.h b/arch/powerpc/platforms/cell/spufs/spufs.h index 420953b58881..b50474450819 100644 --- a/arch/powerpc/platforms/cell/spufs/spufs.h +++ b/arch/powerpc/platforms/cell/spufs/spufs.h @@ -48,6 +48,7 @@ struct spu_context { enum { SPU_STATE_RUNNABLE, SPU_STATE_SAVED } state; struct rw_semaphore state_sema; + struct semaphore run_sema; struct mm_struct *owner; |