btrfs: refactor btrfs_set_props to validate externally

In preparation to merge multiple transactions when setting the
compression flags, split btrfs_set_props() validation part outside of
it.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/fs/btrfs/xattr.c b/fs/btrfs/xattr.c
index cb45c02cdc44..09db8f5f08fe 100644
--- a/fs/btrfs/xattr.c
+++ b/fs/btrfs/xattr.c
@@ -371,7 +371,12 @@ static int btrfs_xattr_handler_set_prop(const struct xattr_handler *handler,
 					const char *name, const void *value,
 					size_t size, int flags)
 {
+	int ret;
+
 	name = xattr_full_name(handler, name);
+	ret = btrfs_validate_prop(name, value, size);
+	if (ret)
+		return ret;
 	return btrfs_set_prop_trans(inode, name, value, size, flags);
 }