linux-kernel - [PATCH 03/15] Call spu_acquire_saved() before calculating the SPU note sizes

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Date:	Wed, 12 Sep 2007 17:43:41 +1000 (EST)
From:	Michael Ellerman <michael@...erman.id.au>
To:	<linuxppc-dev@...abs.org>
Cc:	Jeremy Kerr <jk@...abs.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH 03/15] Call spu_acquire_saved() before calculating the SPU note sizes

It makes sense to stop the SPU processes as soon as possible. Also if we
dont acquire_saved() I think there's a possibility that the value in
csa.priv2.spu_lslr_RW won't be accurate.

Signed-off-by: Michael Ellerman <michael@...erman.id.au>
---
 arch/powerpc/platforms/cell/spufs/coredump.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/arch/powerpc/platforms/cell/spufs/coredump.c b/arch/powerpc/platforms/cell/spufs/coredump.c
index 6663669..21283f6 100644
--- a/arch/powerpc/platforms/cell/spufs/coredump.c
+++ b/arch/powerpc/platforms/cell/spufs/coredump.c
@@ -135,7 +135,9 @@ static int spufs_arch_notes_size(void)
 
 	fd = 0;
 	while ((ctx = coredump_next_context(&fd)) != NULL) {
+		spu_acquire_saved(ctx);
 		rc = spufs_ctx_note_size(ctx, fd);
+		spu_release_saved(ctx);
 		if (rc < 0)
 			break;
 
-- 
1.5.1.3.g7a33b

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