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Commit d7512f79 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'nfs-for-3.14-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs 

Pull NFS client bugfixes from Trond Myklebust:
 "Highlights:

   - Fix NFSv3 acl regressions
   - Fix NFSv4 memory corruption due to slot table abuse in
     nfs4_proc_open_confirm
   - nfs4_destroy_session must call rpc_destroy_waitqueue"

* tag 'nfs-for-3.14-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  fs: get_acl() must be allowed to return EOPNOTSUPP
  NFSv3: Fix return value of nfs3_proc_setacls
  NFSv3: Remove unused function nfs3_proc_set_default_acl
  NFSv4.1: nfs4_destroy_session must call rpc_destroy_waitqueue
  NFSv4: Fix memory corruption in nfs4_proc_open_confirm
  nfs: fix setting of ACLs on file creation.
parents 12b13835 88a78a91

fs/nfs/nfs3acl.c

+12 −22
Original line number Diff line number Diff line
@@ -80,7 +80,7 @@ struct posix_acl *nfs3_get_acl(struct inode *inode, int type) 
	}



	if (res.acl_access != NULL) {

		if (posix_acl_equiv_mode(res.acl_access, NULL) ||

		if ((posix_acl_equiv_mode(res.acl_access, NULL) == 0) ||

		    res.acl_access->a_count == 0) {

			posix_acl_release(res.acl_access);

			res.acl_access = NULL;
@@ -113,7 +113,7 @@ getout: 
	return ERR_PTR(status);

}



int nfs3_proc_setacls(struct inode *inode, struct posix_acl *acl,

static int __nfs3_proc_setacls(struct inode *inode, struct posix_acl *acl,

		struct posix_acl *dfacl)

{

	struct nfs_server *server = NFS_SERVER(inode);
@@ -198,6 +198,15 @@ out: 
	return status;

}



int nfs3_proc_setacls(struct inode *inode, struct posix_acl *acl,

		struct posix_acl *dfacl)

{

	int ret;

	ret = __nfs3_proc_setacls(inode, acl, dfacl);

	return (ret == -EOPNOTSUPP) ? 0 : ret;



}



int nfs3_set_acl(struct inode *inode, struct posix_acl *acl, int type)

{

	struct posix_acl *alloc = NULL, *dfacl = NULL;
@@ -225,7 +234,7 @@ int nfs3_set_acl(struct inode *inode, struct posix_acl *acl, int type) 
		if (IS_ERR(alloc))

			goto fail;

	}

	status = nfs3_proc_setacls(inode, acl, dfacl);

	status = __nfs3_proc_setacls(inode, acl, dfacl);

	posix_acl_release(alloc);

	return status;
@@ -233,25 +242,6 @@ fail: 
	return PTR_ERR(alloc);

}



int nfs3_proc_set_default_acl(struct inode *dir, struct inode *inode,

		umode_t mode)

{

	struct posix_acl *default_acl, *acl;

	int error;



	error = posix_acl_create(dir, &mode, &default_acl, &acl);

	if (error)

		return (error == -EOPNOTSUPP) ? 0 : error;



	error = nfs3_proc_setacls(inode, acl, default_acl);



	if (acl)

		posix_acl_release(acl);

	if (default_acl)

		posix_acl_release(default_acl);

	return error;

}



const struct xattr_handler *nfs3_xattr_handlers[] = {

	&posix_acl_access_xattr_handler,

	&posix_acl_default_xattr_handler,

fs/nfs/nfs4client.c

+1 −1
Original line number Diff line number Diff line
@@ -170,7 +170,7 @@ void nfs41_shutdown_client(struct nfs_client *clp) 
void nfs40_shutdown_client(struct nfs_client *clp)

{

	if (clp->cl_slot_tbl) {

		nfs4_release_slot_table(clp->cl_slot_tbl);

		nfs4_shutdown_slot_table(clp->cl_slot_tbl);

		kfree(clp->cl_slot_tbl);

	}

}

fs/nfs/nfs4proc.c

+4 −4
Original line number Diff line number Diff line
@@ -1620,15 +1620,15 @@ static void nfs4_open_confirm_prepare(struct rpc_task *task, void *calldata) 
{

	struct nfs4_opendata *data = calldata;



	nfs40_setup_sequence(data->o_arg.server, &data->o_arg.seq_args,

				&data->o_res.seq_res, task);

	nfs40_setup_sequence(data->o_arg.server, &data->c_arg.seq_args,

				&data->c_res.seq_res, task);

}



static void nfs4_open_confirm_done(struct rpc_task *task, void *calldata)

{

	struct nfs4_opendata *data = calldata;



	nfs40_sequence_done(task, &data->o_res.seq_res);

	nfs40_sequence_done(task, &data->c_res.seq_res);



	data->rpc_status = task->tk_status;

	if (data->rpc_status == 0) {
@@ -1686,7 +1686,7 @@ static int _nfs4_proc_open_confirm(struct nfs4_opendata *data) 
	};

	int status;



	nfs4_init_sequence(&data->o_arg.seq_args, &data->o_res.seq_res, 1);

	nfs4_init_sequence(&data->c_arg.seq_args, &data->c_res.seq_res, 1);

	kref_get(&data->kref);

	data->rpc_done = 0;

	data->rpc_status = 0;

fs/nfs/nfs4session.c

+20 −5
Original line number Diff line number Diff line
@@ -231,14 +231,23 @@ out: 
	return ret;

}



/*

 * nfs4_release_slot_table - release all slot table entries

 */

static void nfs4_release_slot_table(struct nfs4_slot_table *tbl)

{

	nfs4_shrink_slot_table(tbl, 0);

}



/**

 * nfs4_release_slot_table - release resources attached to a slot table

 * nfs4_shutdown_slot_table - release resources attached to a slot table

 * @tbl: slot table to shut down

 *

 */

void nfs4_release_slot_table(struct nfs4_slot_table *tbl)

void nfs4_shutdown_slot_table(struct nfs4_slot_table *tbl)

{

	nfs4_shrink_slot_table(tbl, 0);

	nfs4_release_slot_table(tbl);

	rpc_destroy_wait_queue(&tbl->slot_tbl_waitq);

}



/**
@@ -422,7 +431,7 @@ void nfs41_update_target_slotid(struct nfs4_slot_table *tbl, 
	spin_unlock(&tbl->slot_tbl_lock);

}



static void nfs4_destroy_session_slot_tables(struct nfs4_session *session)

static void nfs4_release_session_slot_tables(struct nfs4_session *session)

{

	nfs4_release_slot_table(&session->fc_slot_table);

	nfs4_release_slot_table(&session->bc_slot_table);
@@ -450,7 +459,7 @@ int nfs4_setup_session_slot_tables(struct nfs4_session *ses) 
	if (status && tbl->slots == NULL)

		/* Fore and back channel share a connection so get

		 * both slot tables or neither */

		nfs4_destroy_session_slot_tables(ses);

		nfs4_release_session_slot_tables(ses);

	return status;

}
@@ -470,6 +479,12 @@ struct nfs4_session *nfs4_alloc_session(struct nfs_client *clp) 
	return session;

}



static void nfs4_destroy_session_slot_tables(struct nfs4_session *session)

{

	nfs4_shutdown_slot_table(&session->fc_slot_table);

	nfs4_shutdown_slot_table(&session->bc_slot_table);

}



void nfs4_destroy_session(struct nfs4_session *session)

{

	struct rpc_xprt *xprt;

fs/nfs/nfs4session.h

+1 −1
Original line number Diff line number Diff line
@@ -74,7 +74,7 @@ enum nfs4_session_state { 


extern int nfs4_setup_slot_table(struct nfs4_slot_table *tbl,

		unsigned int max_reqs, const char *queue);

extern void nfs4_release_slot_table(struct nfs4_slot_table *tbl);

extern void nfs4_shutdown_slot_table(struct nfs4_slot_table *tbl);

extern struct nfs4_slot *nfs4_alloc_slot(struct nfs4_slot_table *tbl);

extern void nfs4_free_slot(struct nfs4_slot_table *tbl, struct nfs4_slot *slot);

extern void nfs4_slot_tbl_drain_complete(struct nfs4_slot_table *tbl);