proc: convert everything to "struct proc_ops"

The most notable change is DEFINE_SHOW_ATTRIBUTE macro split in
seq_file.h.

Conversion rule is:

	llseek		=> proc_lseek
	unlocked_ioctl	=> proc_ioctl

	xxx		=> proc_xxx

	delete ".owner = THIS_MODULE" line

[akpm@linux-foundation.org: fix drivers/isdn/capi/kcapi_proc.c]
[sfr@canb.auug.org.au: fix kernel/sched/psi.c]
  Link: http://lkml.kernel.org/r/20200122180545.36222f50@canb.auug.org.au
Link: http://lkml.kernel.org/r/20191225172546.GB13378@avx2
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/jfs/jfs_debug.c b/fs/jfs/jfs_debug.c
index 888cdd6..44b62b3 100644
--- a/fs/jfs/jfs_debug.c
+++ b/fs/jfs/jfs_debug.c
@@ -43,12 +43,12 @@ static ssize_t jfs_loglevel_proc_write(struct file *file,
 	return count;
 }
 
-static const struct file_operations jfs_loglevel_proc_fops = {
-	.open		= jfs_loglevel_proc_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-	.write		= jfs_loglevel_proc_write,
+static const struct proc_ops jfs_loglevel_proc_ops = {
+	.proc_open	= jfs_loglevel_proc_open,
+	.proc_read	= seq_read,
+	.proc_lseek	= seq_lseek,
+	.proc_release	= single_release,
+	.proc_write	= jfs_loglevel_proc_write,
 };
 #endif
 
@@ -68,7 +68,7 @@ void jfs_proc_init(void)
 #endif
 #ifdef CONFIG_JFS_DEBUG
 	proc_create_single("TxAnchor", 0, base, jfs_txanchor_proc_show);
-	proc_create("loglevel", 0, base, &jfs_loglevel_proc_fops);
+	proc_create("loglevel", 0, base, &jfs_loglevel_proc_ops);
 #endif
 }