proc "seq files": switch to ->read_iter

Implement ->read_iter for all proc "seq files" so that splice works on
them.

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/fs/proc/generic.c b/fs/proc/generic.c
index f813276..b846632 100644 (file)
--- a/fs/proc/generic.c
+++ b/fs/proc/generic.c
@@ -590,7 +590,7 @@ static int proc_seq_release(struct inode *inode, struct file *file)
 static const struct proc_ops proc_seq_ops = {
        /* not permanent -- can call into arbitrary seq_operations */
        .proc_open      = proc_seq_open,
-       .proc_read      = seq_read,
+       .proc_read_iter = seq_read_iter,
        .proc_lseek     = seq_lseek,
        .proc_release   = proc_seq_release,
 };