[v6,7/9] ceph: add CEPH_DEFINE_RW_FUNC helper support
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Message ID 20200210053407.37237-8-xiubli@redhat.com
State New
Headers show
Series
  • ceph: add perf metrics support
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Commit Message

Xiubo Li Feb. 10, 2020, 5:34 a.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(+)

Patch
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diff --git a/include/linux/ceph/debugfs.h b/include/linux/ceph/debugfs.h
index 8b3a1a7a953a..b9100712f87f 100644
--- a/include/linux/ceph/debugfs.h
+++ b/include/linux/ceph/debugfs.h
@@ -4,6 +4,20 @@ 
 
 #include <linux/ceph/types.h>
 
+#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);