On Fri, 2025-02-21 at 10:36 +1100, NeilBrown wrote:
> After handling a mkdir, get the inode for the name and use
> d_splice_alias() to store the correct dentry in the dcache.
>
> Signed-off-by: NeilBrown <neilb@xxxxxxx>
> ---
> fs/hostfs/hostfs_kern.c | 10 +++++++++-
> 1 file changed, 9 insertions(+), 1 deletion(-)
>
> diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c
> index ccbb48fe830d..a2c6b9051c5b 100644
> --- a/fs/hostfs/hostfs_kern.c
> +++ b/fs/hostfs/hostfs_kern.c
> @@ -682,14 +682,22 @@ static int hostfs_symlink(struct mnt_idmap *idmap, struct inode *ino,
> static struct dentry *hostfs_mkdir(struct mnt_idmap *idmap, struct inode *ino,
> struct dentry *dentry, umode_t mode)
> {
> + struct inode *inode;
> char *file;
> int err;
>
> if ((file = dentry_name(dentry)) == NULL)
> return ERR_PTR(-ENOMEM);
> err = do_mkdir(file, mode);
> + if (err) {
> + dentry = ERR_PTR(err);
> + } else {
> + inode = hostfs_iget(dentry->d_sb, file);
> + d_drop(dentry);
> + dentry = d_splice_alias(inode, dentry);
> + }
> __putname(file);
> - return ERR_PTR(err);
> + return dentry;
> }
>
> static int hostfs_rmdir(struct inode *ino, struct dentry *dentry)
Reviewed-by: Jeff Layton <jlayton@xxxxxxxxxx>
