On Nov. 10, 2008, 22:45 +0200, Benny Halevy <bhalevy@xxxxxxxxxxx> wrote:
> From: Marc Eshel <eshel@xxxxxxxxxxxxxxx>
>
> Signed-off-by: Benny Halevy <bhalevy@xxxxxxxxxxx>
review 11-12: change slot state into a bitmap
do not need atomic ops since done under the state lock.
> ---
> fs/nfsd/nfs4state.c | 12 ++++++++++++
> include/linux/nfsd/state.h | 3 +++
> 2 files changed, 15 insertions(+), 0 deletions(-)
>
> diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
> index dcb075d..23e83e2 100644
> --- a/fs/nfsd/nfs4state.c
> +++ b/fs/nfsd/nfs4state.c
> @@ -321,6 +321,18 @@ static struct list_head close_lru;
> #define SESSION_HASH_SIZE 1031
> static struct list_head sessionid_hashtbl[SESSION_HASH_SIZE];
>
> +int
> +nfs41_get_slot_state(struct nfs41_slot *slot)
> +{
> + return atomic_read(&slot->sl_state);
> +}
> +
> +void
> +nfs41_set_slot_state(struct nfs41_slot *slot, int state)
> +{
> + atomic_set(&slot->sl_state, state);
> +}
> +
> static int
> hash_sessionid(nfs41_sessionid *sessionid)
> {
> diff --git a/include/linux/nfsd/state.h b/include/linux/nfsd/state.h
> index 7684188..85cdaf1 100644
> --- a/include/linux/nfsd/state.h
> +++ b/include/linux/nfsd/state.h
> @@ -356,6 +356,9 @@ struct nfs4_stateid {
> ((err) != nfserr_stale_stateid) && \
> ((err) != nfserr_bad_stateid))
>
> +#if defined(CONFIG_NFSD_V4_1)
> +extern void nfs41_set_slot_state(struct nfs41_slot *, int);
> +#endif /* CONFIG_NFSD_V4_1 */
> extern __be32 nfs4_preprocess_stateid_op(struct svc_fh *current_fh,
> stateid_t *stateid, int flags, struct file **filp);
> extern void nfs4_lock_state(void);
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