From eebead5b8ff89340dc18ceec996157d0eb7d0287 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Fri, 8 Feb 2008 15:50:41 +1100 Subject: [POWERPC] spufs: Fix state_mutex leaks Fix various state_mutex leaks. The worst one was introduced by the interrutible state_mutex conversion but there've been a few before too. Notably spufs_wait now returns without the state_mutex held when returning an error, which actually cleans up some code. Signed-off-by: Christoph Hellwig Signed-off-by: Luke Browning Signed-off-by: Jeremy Kerr Signed-off-by: Paul Mackerras --- arch/powerpc/platforms/cell/spufs/spufs.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'arch/powerpc/platforms/cell/spufs/spufs.h') diff --git a/arch/powerpc/platforms/cell/spufs/spufs.h b/arch/powerpc/platforms/cell/spufs/spufs.h index 795a1b52538b..2c2fe3c07d72 100644 --- a/arch/powerpc/platforms/cell/spufs/spufs.h +++ b/arch/powerpc/platforms/cell/spufs/spufs.h @@ -268,6 +268,9 @@ extern char *isolated_loader; * Same as wait_event_interruptible(), except that here * we need to call spu_release(ctx) before sleeping, and * then spu_acquire(ctx) when awoken. + * + * Returns with state_mutex re-acquired when successfull or + * with -ERESTARTSYS and the state_mutex dropped when interrupted. */ #define spufs_wait(wq, condition) \ @@ -278,11 +281,11 @@ extern char *isolated_loader; prepare_to_wait(&(wq), &__wait, TASK_INTERRUPTIBLE); \ if (condition) \ break; \ + spu_release(ctx); \ if (signal_pending(current)) { \ __ret = -ERESTARTSYS; \ break; \ } \ - spu_release(ctx); \ schedule(); \ __ret = spu_acquire(ctx); \ if (__ret) \ -- cgit v1.2.3