dma-buf: don't open-code atomic_long_read()

... not to mention that even atomic_long_read() is too low-level here -
there's file_count().

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c
index f3014c448e1ef5fb24804945af9dbdca7950b4c5..5be225c2ba98d5ea11760217d9afdfa5240215d3 100644 (file)
--- a/drivers/dma-buf/dma-buf.c
+++ b/drivers/dma-buf/dma-buf.c
@@ -799,7 +799,7 @@ static int dma_buf_describe(struct seq_file *s)
                seq_printf(s, "%08zu\t%08x\t%08x\t%08ld\t%s\n",
                                buf_obj->size,
                                buf_obj->file->f_flags, buf_obj->file->f_mode,
-                               (long)(buf_obj->file->f_count.counter),
+                               file_count(buf_obj->file),
                                buf_obj->exp_name);
 
                seq_puts(s, "\tAttached Devices:\n");