Richard Cochran <[email protected]> writes:

> The hash values 0 and 1 are reserved for magic directory entries, but
> the code only prevents names hashing to 0. This patch fixes the test
> to also prevent hash value 1.
>
Reviewed-by: "Eric W. Biederman" <[email protected]>
> Signed-off-by: Richard Cochran <[email protected]>
> Cc: <[email protected]>
> ---
>  fs/kernfs/dir.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/fs/kernfs/dir.c b/fs/kernfs/dir.c
> index bd6e18b..39c0143 100644
> --- a/fs/kernfs/dir.c
> +++ b/fs/kernfs/dir.c
> @@ -37,7 +37,7 @@ static unsigned int kernfs_name_hash(const char *name, 
> const void *ns)
>       hash = (end_name_hash(hash) ^ hash_ptr((void *)ns, 31));
>       hash &= 0x7fffffffU;
>       /* Reserve hash numbers 0, 1 and INT_MAX for magic directory entries */
> -     if (hash < 1)
> +     if (hash < 2)
>               hash += 2;
>       if (hash >= INT_MAX)
>               hash = INT_MAX - 1;
--
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