Declare the seq_operations and let procfs open and free the seq_file.
->proc_open() only records the event count for ->proc_poll() now.
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
---
mm/swapfile.c | 13 +++----------
1 file changed, 3 insertions(+), 10 deletions(-)
diff --git a/mm/swapfile.c b/mm/swapfile.c
index 254ce86fa923..ee4868ecc3a7 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -3410,26 +3410,19 @@ static const struct seq_operations swaps_op = {
.show = swap_show
};
+/* procfs opens the seq_file */
static int swaps_open(struct inode *inode, struct file *file)
{
- struct seq_file *seq;
- int ret;
-
- ret = seq_open(file, &swaps_op);
- if (ret)
- return ret;
+ struct seq_file *seq = file->private_data;
- seq = file->private_data;
seq->poll_event = atomic_read(&proc_poll_event);
return 0;
}
static const struct proc_ops swaps_proc_ops = {
.proc_flags = PROC_ENTRY_PERMANENT,
+ .proc_seq_ops = &swaps_op,
.proc_open = swaps_open,
- .proc_read = seq_read,
- .proc_lseek = seq_lseek,
- .proc_release = seq_release,
.proc_poll = swaps_poll,
};
--
2.53.0