[PATCH RFC 1/5] btrfs: add inode pointer to prop_handler::validate()

[Anand Jain <anand.jain@oracle.com>]

In preparation to add the readmirror devid property, pass inode in the
prop_handler::validate() function vector, so that it can fetch
corresponding fs_devices.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
---
 fs/btrfs/props.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/fs/btrfs/props.c b/fs/btrfs/props.c
index 99fa2459ba61..1a13f10a6ef5 100644
--- a/fs/btrfs/props.c
+++ b/fs/btrfs/props.c
@@ -18,7 +18,7 @@
 struct prop_handler {
 	struct hlist_node node;
 	const char *xattr_name;
-	int (*validate)(const char *value, size_t len);
+	int (*validate)(struct inode *inode, const char *value, size_t len);
 	int (*apply)(struct inode *inode, const char *value, size_t len);
 	const char *(*extract)(struct inode *inode);
 	int inheritable;
@@ -89,7 +89,7 @@ int btrfs_set_prop(struct inode *inode, const char *name, const char *value,
 		goto out;
 	}
 
-	ret = handler->validate(value, value_len);
+	ret = handler->validate(inode, value, value_len);
 	if (ret)
 		return ret;
 
@@ -263,7 +263,8 @@ int btrfs_load_inode_props(struct inode *inode, struct btrfs_path *path)
 	return ret;
 }
 
-static int prop_compression_validate(const char *value, size_t len)
+static int prop_compression_validate(struct inode *inode, const char *value,
+				     size_t len)
 {
 	if (!value)
 		return 0;
@@ -361,7 +362,7 @@ static int inherit_props(struct btrfs_trans_handle *trans,
 			continue;
 
 		/* may be removed */
-		ret = h->validate(value, strlen(value));
+		ret = h->validate(inode, value, strlen(value));
 		if (ret)
 			continue;
 
-- 
1.8.3.1