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Commit 529d7b2a authored by J. Bruce Fields's avatar J. Bruce Fields
Browse files

nfsd4: minor nfs4state.c reshuffling 



Minor cleanup in preparation for a bugfix--moving some code to avoid
forward references, etc.  No change in functionality.

Cc: stable@kernel.org
Signed-off-by: default avatarJ. Bruce Fields <bfields@redhat.com>
parent 8b3e07ac

fs/nfsd/nfs4state.c

+61 −64
Original line number Diff line number Diff line
@@ -316,64 +316,6 @@ static struct list_head unconf_id_hashtbl[CLIENT_HASH_SIZE]; 
static struct list_head client_lru;

static struct list_head close_lru;



static void unhash_generic_stateid(struct nfs4_stateid *stp)

{

	list_del(&stp->st_hash);

	list_del(&stp->st_perfile);

	list_del(&stp->st_perstateowner);

}



static void free_generic_stateid(struct nfs4_stateid *stp)

{

	put_nfs4_file(stp->st_file);

	kmem_cache_free(stateid_slab, stp);

}



static void release_lock_stateid(struct nfs4_stateid *stp)

{

	struct file *file;



	unhash_generic_stateid(stp);

	file = find_any_file(stp->st_file);

	if (file)

		locks_remove_posix(file, (fl_owner_t)stp->st_stateowner);

	free_generic_stateid(stp);

}



static void unhash_lockowner(struct nfs4_stateowner *sop)

{

	struct nfs4_stateid *stp;



	list_del(&sop->so_idhash);

	list_del(&sop->so_strhash);

	list_del(&sop->so_perstateid);

	while (!list_empty(&sop->so_stateids)) {

		stp = list_first_entry(&sop->so_stateids,

				struct nfs4_stateid, st_perstateowner);

		release_lock_stateid(stp);

	}

}



static void release_lockowner(struct nfs4_stateowner *sop)

{

	unhash_lockowner(sop);

	nfs4_put_stateowner(sop);

}



static void

release_stateid_lockowners(struct nfs4_stateid *open_stp)

{

	struct nfs4_stateowner *lock_sop;



	while (!list_empty(&open_stp->st_lockowners)) {

		lock_sop = list_entry(open_stp->st_lockowners.next,

				struct nfs4_stateowner, so_perstateid);

		/* list_del(&open_stp->st_lockowners);  */

		BUG_ON(lock_sop->so_is_open_owner);

		release_lockowner(lock_sop);

	}

}



/*

 * We store the NONE, READ, WRITE, and BOTH bits separately in the

 * st_{access,deny}_bmap field of the stateid, in order to track not
@@ -446,6 +388,64 @@ static int nfs4_access_bmap_to_omode(struct nfs4_stateid *stp) 
	return nfs4_access_to_omode(access);

}



static void unhash_generic_stateid(struct nfs4_stateid *stp)

{

	list_del(&stp->st_hash);

	list_del(&stp->st_perfile);

	list_del(&stp->st_perstateowner);

}



static void free_generic_stateid(struct nfs4_stateid *stp)

{

	put_nfs4_file(stp->st_file);

	kmem_cache_free(stateid_slab, stp);

}



static void release_lock_stateid(struct nfs4_stateid *stp)

{

	struct file *file;



	unhash_generic_stateid(stp);

	file = find_any_file(stp->st_file);

	if (file)

		locks_remove_posix(file, (fl_owner_t)stp->st_stateowner);

	free_generic_stateid(stp);

}



static void unhash_lockowner(struct nfs4_stateowner *sop)

{

	struct nfs4_stateid *stp;



	list_del(&sop->so_idhash);

	list_del(&sop->so_strhash);

	list_del(&sop->so_perstateid);

	while (!list_empty(&sop->so_stateids)) {

		stp = list_first_entry(&sop->so_stateids,

				struct nfs4_stateid, st_perstateowner);

		release_lock_stateid(stp);

	}

}



static void release_lockowner(struct nfs4_stateowner *sop)

{

	unhash_lockowner(sop);

	nfs4_put_stateowner(sop);

}



static void

release_stateid_lockowners(struct nfs4_stateid *open_stp)

{

	struct nfs4_stateowner *lock_sop;



	while (!list_empty(&open_stp->st_lockowners)) {

		lock_sop = list_entry(open_stp->st_lockowners.next,

				struct nfs4_stateowner, so_perstateid);

		/* list_del(&open_stp->st_lockowners);  */

		BUG_ON(lock_sop->so_is_open_owner);

		release_lockowner(lock_sop);

	}

}



static void release_open_stateid(struct nfs4_stateid *stp)

{

	int oflag = nfs4_access_bmap_to_omode(stp);
@@ -3764,7 +3764,6 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, 
	struct file_lock conflock;

	__be32 status = 0;

	unsigned int strhashval;

	unsigned int cmd;

	int err;



	dprintk("NFSD: nfsd4_lock: start=%Ld length=%Ld\n",
@@ -3851,7 +3850,6 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, 
				filp = find_readable_file(lock_stp->st_file);

			}

			file_lock.fl_type = F_RDLCK;

			cmd = F_SETLK;

			break;

		case NFS4_WRITE_LT:

		case NFS4_WRITEW_LT:
@@ -3860,7 +3858,6 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, 
				filp = find_writeable_file(lock_stp->st_file);

			}

			file_lock.fl_type = F_WRLCK;

			cmd = F_SETLK;

			break;

		default:

			status = nfserr_inval;
@@ -3885,7 +3882,7 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, 
	* Note: locks.c uses the BKL to protect the inode's lock list.

	*/



	err = vfs_lock_file(filp, cmd, &file_lock, &conflock);

	err = vfs_lock_file(filp, F_SETLK, &file_lock, &conflock);

	switch (-err) {

	case 0: /* success! */

		update_stateid(&lock_stp->st_stateid);