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mm/vmstat.c: convert to use DEFINE_SEQ_ATTRIBUTE macro

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Use DEFINE_SEQ_ATTRIBUTE macro to simplify the code.

Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Andrew 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: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Kefeng Wang 2020-06-04 16:51:08 -07:00 committed by Linus Torvalds
parent d2c0e6e91c
commit 01a9956002
1 changed files with 6 additions and 26 deletions
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32
mm/vmstat.c
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@ -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;
}