diff mbox series

[v5,08/10] ceph: add CEPH_DEFINE_RW_FUNC helper support

Message ID 20200128130248.4266-9-xiubli@redhat.com (mailing list archive)
State New, archived
Headers show
Series ceph: add perf metrics support | expand

Commit Message

Xiubo Li Jan. 28, 2020, 1:02 p.m. UTC 
From: Xiubo Li <xiubli@redhat.com>

This will support the string store.

Signed-off-by: Xiubo Li <xiubli@redhat.com>
---
 include/linux/ceph/debugfs.h | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
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Patch

diff --git a/include/linux/ceph/debugfs.h b/include/linux/ceph/debugfs.h
index cf5e840eec71..b918fb1f6f54 100644
--- a/include/linux/ceph/debugfs.h
+++ b/include/linux/ceph/debugfs.h
@@ -18,6 +18,20 @@  static const struct file_operations name##_fops = {			\
 	.release	= single_release,				\
 };
 
+#define CEPH_DEFINE_RW_FUNC(name)					\
+static int name##_open(struct inode *inode, struct file *file)		\
+{									\
+	return single_open(file, name##_show, inode->i_private);	\
+}									\
+									\
+static const struct file_operations name##_fops = {			\
+	.open		= name##_open,					\
+	.read		= seq_read,					\
+	.write		= name##_store,					\
+	.llseek		= seq_lseek,					\
+	.release	= single_release,				\
+};
+
 /* debugfs.c */
 extern void ceph_debugfs_init(void);
 extern void ceph_debugfs_cleanup(void);