fs-inode_lock-scale-4

Protect inode->i_count with i_lock, rather than having it atomic.
Next step should also be to move things together (eg. the refcount increment
into d_instantiate, which will remove a lock/unlock cycle on i_lock).

Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: John Stultz <johnstul@us.ibm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c
index 64a4c2d85f7c..f078fe70d3cd 100644
--- a/arch/powerpc/platforms/cell/spufs/file.c
+++ b/arch/powerpc/platforms/cell/spufs/file.c
@@ -1548,7 +1548,7 @@ static int spufs_mfc_open(struct inode *inode, struct file *file)
         if (ctx->owner != current->mm)
                 return -EINVAL;
 
-        if (atomic_read(&inode->i_count) != 1)
+        if (inode->i_count != 1)
                 return -EBUSY;
 
         mutex_lock(&ctx->mapping_lock);