diff options
| 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/context.c | |
| parent | e80358ad8606382154d97165121602dfae213e4a (diff) | |
| download | op-kernel-dev-5ef8224aaa9220bfecb362f0802cf78aad47c02a.zip op-kernel-dev-5ef8224aaa9220bfecb362f0802cf78aad47c02a.tar.gz | |
[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/context.c')
| -rw-r--r-- | arch/powerpc/platforms/cell/spufs/context.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/cell/spufs/context.c b/arch/powerpc/platforms/cell/spufs/context.c index 903c35d..c5cd55a 100644 --- a/arch/powerpc/platforms/cell/spufs/context.c +++ b/arch/powerpc/platforms/cell/spufs/context.c @@ -43,6 +43,7 @@ struct spu_context *alloc_spu_context(struct address_space *local_store) spin_lock_init(&ctx->mmio_lock); kref_init(&ctx->kref); init_rwsem(&ctx->state_sema); + init_MUTEX(&ctx->run_sema); init_waitqueue_head(&ctx->ibox_wq); init_waitqueue_head(&ctx->wbox_wq); init_waitqueue_head(&ctx->stop_wq); |
