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exportfs: change connectable argument to bit flags

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Convert the bool connectable arguemnt into a bit flags argument and
define the EXPORT_FS_CONNECTABLE flag as a requested property of the
file handle.

We are going to add a flag for requesting non-decodeable file handles.

Acked-by: Jeff Layton <jlayton@kernel.org>
Acked-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Message-Id: <20230502124817.3070545-2-amir73il@gmail.com>
This commit is contained in:
Amir Goldstein
2023-05-02 15:48:14 +03:00
committed by Jan Kara
parent f1fcbaa18b
commit b52878275c
3 changed files with 18 additions and 6 deletions
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fs/exportfs/expfs.c
+11 -2
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@@ -393,14 +393,23 @@ int exportfs_encode_inode_fh(struct inode *inode, struct fid *fid,
}
EXPORT_SYMBOL_GPL(exportfs_encode_inode_fh);
/**
* exportfs_encode_fh - encode a file handle from dentry
* @dentry: the object to encode
* @fid: where to store the file handle fragment
* @max_len: maximum length to store there
* @flags: properties of the requested file handle
*
* Returns an enum fid_type or a negative errno.
*/
int exportfs_encode_fh(struct dentry *dentry, struct fid *fid, int *max_len,
int connectable)
int flags)
{
int error;
struct dentry *p = NULL;
struct inode *inode = dentry->d_inode, *parent = NULL;
if (connectable && !S_ISDIR(inode->i_mode)) {
if ((flags & EXPORT_FH_CONNECTABLE) && !S_ISDIR(inode->i_mode)) {
p = dget_parent(dentry);
/*
* note that while p might've ceased to be our parent already,