From 66c62769bcf6aa142e2309278980a2e52f4b08db Mon Sep 17 00:00:00 2001 From: Amir Goldstein Date: Mon, 23 Oct 2023 21:07:58 +0300 Subject: exportfs: add helpers to check if filesystem can encode/decode file handles The logic of whether filesystem can encode/decode file handles is open coded in many places. In preparation to changing the logic, move the open coded logic into inline helpers. Reviewed-by: Jan Kara Reviewed-by: Jeff Layton Signed-off-by: Amir Goldstein Link: https://lore.kernel.org/r/20231023180801.2953446-2-amir73il@gmail.com Signed-off-by: Christian Brauner --- fs/fhandle.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) (limited to 'fs/fhandle.c') diff --git a/fs/fhandle.c b/fs/fhandle.c index 6ea8d35a9382..18b3ba8dc8ea 100644 --- a/fs/fhandle.c +++ b/fs/fhandle.c @@ -26,12 +26,8 @@ static long do_sys_name_to_handle(const struct path *path, /* * We need to make sure whether the file system support decoding of * the file handle if decodeable file handle was requested. - * Otherwise, even empty export_operations are sufficient to opt-in - * to encoding FIDs. */ - if (!path->dentry->d_sb->s_export_op || - (!(fh_flags & EXPORT_FH_FID) && - !path->dentry->d_sb->s_export_op->fh_to_dentry)) + if (!exportfs_can_encode_fh(path->dentry->d_sb->s_export_op, fh_flags)) return -EOPNOTSUPP; if (copy_from_user(&f_handle, ufh, sizeof(struct file_handle))) -- cgit v1.2.3