Commit 01a99560 authored by Kefeng Wang's avatar Kefeng Wang Committed by Linus Torvalds
Browse files

mm/vmstat.c: convert to use DEFINE_SEQ_ATTRIBUTE macro 



Use DEFINE_SEQ_ATTRIBUTE macro to simplify the code.

Signed-off-by: default avatarKefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Greg KH <gregkh@linuxfoundation.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Link: http://lkml.kernel.org/r/20200509064031.181091-3-wangkefeng.wang@huawei.com


Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent d2c0e6e9

mm/vmstat.c

+6 −26
Original line number Diff line number Diff line
@@ -2069,24 +2069,14 @@ static int unusable_show(struct seq_file *m, void *arg) 
	return 0;

}



static const struct seq_operations unusable_op = {

static const struct seq_operations unusable_sops = {

	.start	= frag_start,

	.next	= frag_next,

	.stop	= frag_stop,

	.show	= unusable_show,

};



static int unusable_open(struct inode *inode, struct file *file)

{

	return seq_open(file, &unusable_op);

}



static const struct file_operations unusable_file_ops = {

	.open		= unusable_open,

	.read		= seq_read,

	.llseek		= seq_lseek,

	.release	= seq_release,

};

DEFINE_SEQ_ATTRIBUTE(unusable);



static void extfrag_show_print(struct seq_file *m,

					pg_data_t *pgdat, struct zone *zone)
@@ -2121,24 +2111,14 @@ static int extfrag_show(struct seq_file *m, void *arg) 
	return 0;

}



static const struct seq_operations extfrag_op = {

static const struct seq_operations extfrag_sops = {

	.start	= frag_start,

	.next	= frag_next,

	.stop	= frag_stop,

	.show	= extfrag_show,

};



static int extfrag_open(struct inode *inode, struct file *file)

{

	return seq_open(file, &extfrag_op);

}



static const struct file_operations extfrag_file_ops = {

	.open		= extfrag_open,

	.read		= seq_read,

	.llseek		= seq_lseek,

	.release	= seq_release,

};

DEFINE_SEQ_ATTRIBUTE(extfrag);



static int __init extfrag_debug_init(void)

{
@@ -2147,10 +2127,10 @@ static int __init extfrag_debug_init(void) 
	extfrag_debug_root = debugfs_create_dir("extfrag", NULL);



	debugfs_create_file("unusable_index", 0444, extfrag_debug_root, NULL,

			    &unusable_file_ops);

			    &unusable_fops);



	debugfs_create_file("extfrag_index", 0444, extfrag_debug_root, NULL,

			    &extfrag_file_ops);

			    &extfrag_fops);



	return 0;

}