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authorKefeng Wang <wangkefeng.wang@huawei.com>2020-06-04 16:51:08 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-06-04 19:06:26 -0700
commit01a995600275779d7b06c3b82fd50f6cb50c601c (patch)
tree3d5f3bdd1b50477207ba389113878e21ccfa5ff8
parentd2c0e6e91c7990c67921005f44f9b2b326ff2906 (diff)
mm/vmstat.c: convert to use DEFINE_SEQ_ATTRIBUTE macro
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>
-rw-r--r--mm/vmstat.c32
1 files changed, 6 insertions, 26 deletions
diff --git a/mm/vmstat.c b/mm/vmstat.c
index a7db29f7e5f7..3fb23a21f6dd 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -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;
}