Ian Kent <[EMAIL PROTECTED]> writes:
> Signed-off-by: Ian Kent <[EMAIL PROTECTED]>
Reviewed-by: Jeff Moyer <[EMAIL PROTECTED]>
Cheers,
Jeff
>
> ---
>
> fs/autofs4/waitq.c | 17 ++++++++++++++---
> 1 files changed, 14 insertions(+), 3 deletions(-)
>
>
> diff --git a/fs/autofs4/waitq.c b/fs/autofs4/waitq.c
> index bcb6c52..35216d1 100644
> --- a/fs/autofs4/waitq.c
> +++ b/fs/autofs4/waitq.c
> @@ -328,9 +328,20 @@ int autofs4_wait(struct autofs_sb_info *sbi, struct
> dentry *dentry,
> if (sbi->catatonic)
> return -ENOENT;
>
> - if (!dentry->d_inode &&
> - (sbi->type & (AUTOFS_TYPE_DIRECT | AUTOFS_TYPE_OFFSET)))
> - return -ENOENT;
> + if (!dentry->d_inode) {
> + /*
> + * A wait for a negative dentry is invalid for certain
> + * cases. A direct or offset mount "always" has its mount
> + * point directory created and so the request dentry must
> + * be positive or the map key doesn't exist. The situation
> + * is very similar for indirect mounts except only dentrys
> + * in the root of the autofs file system may be negative.
> + */
> + if (sbi->type & (AUTOFS_TYPE_DIRECT|AUTOFS_TYPE_OFFSET))
> + return -ENOENT;
> + else if (!IS_ROOT(dentry->d_parent))
> + return -ENOENT;
> + }
>
> name = kmalloc(NAME_MAX + 1, GFP_KERNEL);
> if (!name)
> --
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