[mirror_ubuntu-artful-kernel.git] / fs / nfs / nfs3acl.c

#include <linux/fs.h>
#include <linux/gfp.h>
#include <linux/nfs.h>
#include <linux/nfs3.h>
#include <linux/nfs_fs.h>
#include <linux/posix_acl_xattr.h>
#include <linux/nfsacl.h>

#include "internal.h"
#include "nfs3_fs.h"

#define NFSDBG_FACILITY	NFSDBG_PROC

/*
 * nfs3_prepare_get_acl, nfs3_complete_get_acl, nfs3_abort_get_acl: Helpers for
 * caching get_acl results in a race-free way.  See fs/posix_acl.c:get_acl()
 * for explanations.
 */
static void nfs3_prepare_get_acl(struct posix_acl **p)
{
	struct posix_acl *sentinel = uncached_acl_sentinel(current);

	if (cmpxchg(p, ACL_NOT_CACHED, sentinel) != ACL_NOT_CACHED) {
		/* Not the first reader or sentinel already in place. */
	}
}

static void nfs3_complete_get_acl(struct posix_acl **p, struct posix_acl *acl)
{
	struct posix_acl *sentinel = uncached_acl_sentinel(current);

	/* Only cache the ACL if our sentinel is still in place. */
	posix_acl_dup(acl);
	if (cmpxchg(p, sentinel, acl) != sentinel)
		posix_acl_release(acl);
}

static void nfs3_abort_get_acl(struct posix_acl **p)
{
	struct posix_acl *sentinel = uncached_acl_sentinel(current);

	/* Remove our sentinel upon failure. */
	cmpxchg(p, sentinel, ACL_NOT_CACHED);
}

struct posix_acl *nfs3_get_acl(struct inode *inode, int type)
{
	struct nfs_server *server = NFS_SERVER(inode);
	struct page *pages[NFSACL_MAXPAGES] = { };
	struct nfs3_getaclargs args = {
		.fh = NFS_FH(inode),
		/* The xdr layer may allocate pages here. */
		.pages = pages,
	};
	struct nfs3_getaclres res = {
		NULL,
	};
	struct rpc_message msg = {
		.rpc_argp	= &args,
		.rpc_resp	= &res,
	};
	int status, count;

	if (!nfs_server_capable(inode, NFS_CAP_ACLS))
		return ERR_PTR(-EOPNOTSUPP);

	status = nfs_revalidate_inode(server, inode);
	if (status < 0)
		return ERR_PTR(status);

	/*
	 * Only get the access acl when explicitly requested: We don't
	 * need it for access decisions, and only some applications use
	 * it. Applications which request the access acl first are not
	 * penalized from this optimization.
	 */
	if (type == ACL_TYPE_ACCESS)
		args.mask |= NFS_ACLCNT|NFS_ACL;
	if (S_ISDIR(inode->i_mode))
		args.mask |= NFS_DFACLCNT|NFS_DFACL;
	if (args.mask == 0)
		return NULL;

	dprintk("NFS call getacl\n");
	msg.rpc_proc = &server->client_acl->cl_procinfo[ACLPROC3_GETACL];
	res.fattr = nfs_alloc_fattr();
	if (res.fattr == NULL)
		return ERR_PTR(-ENOMEM);

	if (args.mask & NFS_ACL)
		nfs3_prepare_get_acl(&inode->i_acl);
	if (args.mask & NFS_DFACL)
		nfs3_prepare_get_acl(&inode->i_default_acl);

	status = rpc_call_sync(server->client_acl, &msg, 0);
	dprintk("NFS reply getacl: %d\n", status);

	/* pages may have been allocated at the xdr layer. */
	for (count = 0; count < NFSACL_MAXPAGES && args.pages[count]; count++)
		__free_page(args.pages[count]);

	switch (status) {
		case 0:
			status = nfs_refresh_inode(inode, res.fattr);
			break;
		case -EPFNOSUPPORT:
		case -EPROTONOSUPPORT:
			dprintk("NFS_V3_ACL extension not supported; disabling\n");
			server->caps &= ~NFS_CAP_ACLS;
		case -ENOTSUPP:
			status = -EOPNOTSUPP;
		default:
			goto getout;
	}
	if ((args.mask & res.mask) != args.mask) {
		status = -EIO;
		goto getout;
	}

	if (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;
		}
	}

	if (res.mask & NFS_ACL)
		nfs3_complete_get_acl(&inode->i_acl, res.acl_access);
	else
		forget_cached_acl(inode, ACL_TYPE_ACCESS);

	if (res.mask & NFS_DFACL)
		nfs3_complete_get_acl(&inode->i_default_acl, res.acl_default);
	else
		forget_cached_acl(inode, ACL_TYPE_DEFAULT);

	nfs_free_fattr(res.fattr);
	if (type == ACL_TYPE_ACCESS) {
		posix_acl_release(res.acl_default);
		return res.acl_access;
	} else {
		posix_acl_release(res.acl_access);
		return res.acl_default;
	}

getout:
	nfs3_abort_get_acl(&inode->i_acl);
	nfs3_abort_get_acl(&inode->i_default_acl);
	posix_acl_release(res.acl_access);
	posix_acl_release(res.acl_default);
	nfs_free_fattr(res.fattr);
	return ERR_PTR(status);
}

static int __nfs3_proc_setacls(struct inode *inode, struct posix_acl *acl,
		struct posix_acl *dfacl)
{
	struct nfs_server *server = NFS_SERVER(inode);
	struct nfs_fattr *fattr;
	struct page *pages[NFSACL_MAXPAGES];
	struct nfs3_setaclargs args = {
		.inode = inode,
		.mask = NFS_ACL,
		.acl_access = acl,
		.pages = pages,
	};
	struct rpc_message msg = {
		.rpc_argp	= &args,
		.rpc_resp	= &fattr,
	};
	int status = 0;

	if (acl == NULL && (!S_ISDIR(inode->i_mode) || dfacl == NULL))
		goto out;

	status = -EOPNOTSUPP;
	if (!nfs_server_capable(inode, NFS_CAP_ACLS))
		goto out;

	/* We are doing this here because XDR marshalling does not
	 * return any results, it BUGs. */
	status = -ENOSPC;
	if (acl != NULL && acl->a_count > NFS_ACL_MAX_ENTRIES)
		goto out;
	if (dfacl != NULL && dfacl->a_count > NFS_ACL_MAX_ENTRIES)
		goto out;
	if (S_ISDIR(inode->i_mode)) {
		args.mask |= NFS_DFACL;
		args.acl_default = dfacl;
		args.len = nfsacl_size(acl, dfacl);
	} else
		args.len = nfsacl_size(acl, NULL);

	if (args.len > NFS_ACL_INLINE_BUFSIZE) {
		unsigned int npages = 1 + ((args.len - 1) >> PAGE_SHIFT);

		status = -ENOMEM;
		do {
			args.pages[args.npages] = alloc_page(GFP_KERNEL);
			if (args.pages[args.npages] == NULL)
				goto out_freepages;
			args.npages++;
		} while (args.npages < npages);
	}

	dprintk("NFS call setacl\n");
	status = -ENOMEM;
	fattr = nfs_alloc_fattr();
	if (fattr == NULL)
		goto out_freepages;

	msg.rpc_proc = &server->client_acl->cl_procinfo[ACLPROC3_SETACL];
	msg.rpc_resp = fattr;
	status = rpc_call_sync(server->client_acl, &msg, 0);
	nfs_access_zap_cache(inode);
	nfs_zap_acl_cache(inode);
	dprintk("NFS reply setacl: %d\n", status);

	switch (status) {
		case 0:
			status = nfs_refresh_inode(inode, fattr);
			set_cached_acl(inode, ACL_TYPE_ACCESS, acl);
			set_cached_acl(inode, ACL_TYPE_DEFAULT, dfacl);
			break;
		case -EPFNOSUPPORT:
		case -EPROTONOSUPPORT:
			dprintk("NFS_V3_ACL SETACL RPC not supported"
					"(will not retry)\n");
			server->caps &= ~NFS_CAP_ACLS;
		case -ENOTSUPP:
			status = -EOPNOTSUPP;
	}
	nfs_free_fattr(fattr);
out_freepages:
	while (args.npages != 0) {
		args.npages--;
		__free_page(args.pages[args.npages]);
	}
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;
	int status;

	if (S_ISDIR(inode->i_mode)) {
		switch(type) {
		case ACL_TYPE_ACCESS:
			alloc = dfacl = get_acl(inode, ACL_TYPE_DEFAULT);
			if (IS_ERR(alloc))
				goto fail;
			break;

		case ACL_TYPE_DEFAULT:
			dfacl = acl;
			alloc = acl = get_acl(inode, ACL_TYPE_ACCESS);
			if (IS_ERR(alloc))
				goto fail;
			break;
		}
	}

	if (acl == NULL) {
		alloc = acl = posix_acl_from_mode(inode->i_mode, GFP_KERNEL);
		if (IS_ERR(alloc))
			goto fail;
	}
	status = __nfs3_proc_setacls(inode, acl, dfacl);
	posix_acl_release(alloc);
	return status;

fail:
	return PTR_ERR(alloc);
}

const struct xattr_handler *nfs3_xattr_handlers[] = {
	&posix_acl_access_xattr_handler,
	&posix_acl_default_xattr_handler,
	NULL,
};

static int
nfs3_list_one_acl(struct inode *inode, int type, const char *name, void *data,
		size_t size, ssize_t *result)
{
	struct posix_acl *acl;
	char *p = data + *result;

	acl = get_acl(inode, type);
	if (IS_ERR_OR_NULL(acl))
		return 0;

	posix_acl_release(acl);

	*result += strlen(name);
	*result += 1;
	if (!size)
		return 0;
	if (*result > size)
		return -ERANGE;

	strcpy(p, name);
	return 0;
}

ssize_t
nfs3_listxattr(struct dentry *dentry, char *data, size_t size)
{
	struct inode *inode = d_inode(dentry);
	ssize_t result = 0;
	int error;

	error = nfs3_list_one_acl(inode, ACL_TYPE_ACCESS,
			XATTR_NAME_POSIX_ACL_ACCESS, data, size, &result);
	if (error)
		return error;

	error = nfs3_list_one_acl(inode, ACL_TYPE_DEFAULT,
			XATTR_NAME_POSIX_ACL_DEFAULT, data, size, &result);
	if (error)
		return error;
	return result;
}
Commit	Line	Data
b7fa0554	1	#include <linux/fs.h>
5a0e3ad6	2	#include <linux/gfp.h>
b7fa0554 AG	3	#include <linux/nfs.h>
	4	#include <linux/nfs3.h>
	5	#include <linux/nfs_fs.h>
334a13ec	6	#include <linux/posix_acl_xattr.h>
b7fa0554 AG	7	#include <linux/nfsacl.h>
b7fa0554 AG	8
f41f7418	9	#include "internal.h"
3fc3edf1	10	#include "nfs3_fs.h"
f41f7418	11
b7fa0554 AG	12	#define NFSDBG_FACILITY NFSDBG_PROC
b7fa0554 AG	13
b8a7a3a6 AG	14	/*
	15	* nfs3_prepare_get_acl, nfs3_complete_get_acl, nfs3_abort_get_acl: Helpers for
	16	* caching get_acl results in a race-free way. See fs/posix_acl.c:get_acl()
	17	* for explanations.
	18	*/
	19	static void nfs3_prepare_get_acl(struct posix_acl **p)
	20	{
	21	struct posix_acl *sentinel = uncached_acl_sentinel(current);
	22
	23	if (cmpxchg(p, ACL_NOT_CACHED, sentinel) != ACL_NOT_CACHED) {
	24	/* Not the first reader or sentinel already in place. */
	25	}
	26	}
	27
	28	static void nfs3_complete_get_acl(struct posix_acl *p, struct posix_acl acl)
	29	{
	30	struct posix_acl *sentinel = uncached_acl_sentinel(current);
	31
	32	/* Only cache the ACL if our sentinel is still in place. */
	33	posix_acl_dup(acl);
	34	if (cmpxchg(p, sentinel, acl) != sentinel)
	35	posix_acl_release(acl);
	36	}
	37
	38	static void nfs3_abort_get_acl(struct posix_acl **p)
	39	{
	40	struct posix_acl *sentinel = uncached_acl_sentinel(current);
	41
	42	/* Remove our sentinel upon failure. */
	43	cmpxchg(p, sentinel, ACL_NOT_CACHED);
	44	}
	45
013cdf10	46	struct posix_acl nfs3_get_acl(struct inode inode, int type)
b7fa0554 AG	47	{
b7fa0554 AG	48	struct nfs_server *server = NFS_SERVER(inode);
b7fa0554 AG	49	struct page *pages[NFSACL_MAXPAGES] = { };
	50	struct nfs3_getaclargs args = {
	51	.fh = NFS_FH(inode),
	52	/* The xdr layer may allocate pages here. */
	53	.pages = pages,
	54	};
	55	struct nfs3_getaclres res = {
17280175	56	NULL,
b7fa0554	57	};
dead28da CL	58	struct rpc_message msg = {
	59	.rpc_argp = &args,
	60	.rpc_resp = &res,
	61	};
b7fa0554 AG	62	int status, count;
	63
	64	if (!nfs_server_capable(inode, NFS_CAP_ACLS))
	65	return ERR_PTR(-EOPNOTSUPP);
	66
5c6a9f7d AG	67	status = nfs_revalidate_inode(server, inode);
	68	if (status < 0)
	69	return ERR_PTR(status);
b7fa0554	70
5c6a9f7d AG	71	/*
	72	* Only get the access acl when explicitly requested: We don't
	73	* need it for access decisions, and only some applications use
	74	* it. Applications which request the access acl first are not
	75	* penalized from this optimization.
	76	*/
	77	if (type == ACL_TYPE_ACCESS)
	78	args.mask \|= NFS_ACLCNT\|NFS_ACL;
	79	if (S_ISDIR(inode->i_mode))
	80	args.mask \|= NFS_DFACLCNT\|NFS_DFACL;
	81	if (args.mask == 0)
	82	return NULL;
b7fa0554 AG	83
b7fa0554 AG	84	dprintk("NFS call getacl\n");
dead28da	85	msg.rpc_proc = &server->client_acl->cl_procinfo[ACLPROC3_GETACL];
6e94d629 TM	86	res.fattr = nfs_alloc_fattr();
	87	if (res.fattr == NULL)
	88	return ERR_PTR(-ENOMEM);
	89
b8a7a3a6 AG	90	if (args.mask & NFS_ACL)
	91	nfs3_prepare_get_acl(&inode->i_acl);
	92	if (args.mask & NFS_DFACL)
	93	nfs3_prepare_get_acl(&inode->i_default_acl);
	94
dead28da	95	status = rpc_call_sync(server->client_acl, &msg, 0);
b7fa0554 AG	96	dprintk("NFS reply getacl: %d\n", status);
	97
	98	/* pages may have been allocated at the xdr layer. */
	99	for (count = 0; count < NFSACL_MAXPAGES && args.pages[count]; count++)
	100	__free_page(args.pages[count]);
	101
	102	switch (status) {
	103	case 0:
6e94d629	104	status = nfs_refresh_inode(inode, res.fattr);
b7fa0554 AG	105	break;
	106	case -EPFNOSUPPORT:
	107	case -EPROTONOSUPPORT:
	108	dprintk("NFS_V3_ACL extension not supported; disabling\n");
	109	server->caps &= ~NFS_CAP_ACLS;
	110	case -ENOTSUPP:
	111	status = -EOPNOTSUPP;
	112	default:
	113	goto getout;
	114	}
	115	if ((args.mask & res.mask) != args.mask) {
	116	status = -EIO;
	117	goto getout;
	118	}
	119
	120	if (res.acl_access != NULL) {
718360c5	121	if ((posix_acl_equiv_mode(res.acl_access, NULL) == 0) \|\|
013cdf10	122	res.acl_access->a_count == 0) {
b7fa0554 AG	123	posix_acl_release(res.acl_access);
	124	res.acl_access = NULL;
	125	}
	126	}
	127
013cdf10	128	if (res.mask & NFS_ACL)
b8a7a3a6	129	nfs3_complete_get_acl(&inode->i_acl, res.acl_access);
013cdf10 CH	130	else
013cdf10 CH	131	forget_cached_acl(inode, ACL_TYPE_ACCESS);
b7fa0554	132
013cdf10	133	if (res.mask & NFS_DFACL)
b8a7a3a6	134	nfs3_complete_get_acl(&inode->i_default_acl, res.acl_default);
013cdf10 CH	135	else
	136	forget_cached_acl(inode, ACL_TYPE_DEFAULT);
	137
	138	nfs_free_fattr(res.fattr);
	139	if (type == ACL_TYPE_ACCESS) {
	140	posix_acl_release(res.acl_default);
	141	return res.acl_access;
	142	} else {
	143	posix_acl_release(res.acl_access);
	144	return res.acl_default;
b7fa0554 AG	145	}
	146
	147	getout:
b8a7a3a6 AG	148	nfs3_abort_get_acl(&inode->i_acl);
b8a7a3a6 AG	149	nfs3_abort_get_acl(&inode->i_default_acl);
b7fa0554 AG	150	posix_acl_release(res.acl_access);
b7fa0554 AG	151	posix_acl_release(res.acl_default);
6e94d629	152	nfs_free_fattr(res.fattr);
013cdf10	153	return ERR_PTR(status);
b7fa0554 AG	154	}
b7fa0554 AG	155
8f493b9c	156	static int __nfs3_proc_setacls(struct inode inode, struct posix_acl acl,
013cdf10	157	struct posix_acl *dfacl)
b7fa0554 AG	158	{
b7fa0554 AG	159	struct nfs_server *server = NFS_SERVER(inode);
6e94d629	160	struct nfs_fattr *fattr;
ae46141f	161	struct page *pages[NFSACL_MAXPAGES];
b7fa0554 AG	162	struct nfs3_setaclargs args = {
	163	.inode = inode,
	164	.mask = NFS_ACL,
	165	.acl_access = acl,
	166	.pages = pages,
	167	};
dead28da CL	168	struct rpc_message msg = {
	169	.rpc_argp = &args,
	170	.rpc_resp = &fattr,
	171	};
f87d928f TM	172	int status = 0;
	173
	174	if (acl == NULL && (!S_ISDIR(inode->i_mode) \|\| dfacl == NULL))
	175	goto out;
b7fa0554 AG	176
	177	status = -EOPNOTSUPP;
	178	if (!nfs_server_capable(inode, NFS_CAP_ACLS))
	179	goto out;
	180
f61f6da0 CL	181	/* We are doing this here because XDR marshalling does not
f61f6da0 CL	182	* return any results, it BUGs. */
b7fa0554 AG	183	status = -ENOSPC;
	184	if (acl != NULL && acl->a_count > NFS_ACL_MAX_ENTRIES)
	185	goto out;
	186	if (dfacl != NULL && dfacl->a_count > NFS_ACL_MAX_ENTRIES)
	187	goto out;
	188	if (S_ISDIR(inode->i_mode)) {
	189	args.mask \|= NFS_DFACL;
	190	args.acl_default = dfacl;
ae46141f TM	191	args.len = nfsacl_size(acl, dfacl);
	192	} else
	193	args.len = nfsacl_size(acl, NULL);
	194
	195	if (args.len > NFS_ACL_INLINE_BUFSIZE) {
	196	unsigned int npages = 1 + ((args.len - 1) >> PAGE_SHIFT);
	197
	198	status = -ENOMEM;
	199	do {
	200	args.pages[args.npages] = alloc_page(GFP_KERNEL);
	201	if (args.pages[args.npages] == NULL)
	202	goto out_freepages;
	203	args.npages++;
	204	} while (args.npages < npages);
b7fa0554 AG	205	}
	206
	207	dprintk("NFS call setacl\n");
6e94d629 TM	208	status = -ENOMEM;
	209	fattr = nfs_alloc_fattr();
	210	if (fattr == NULL)
	211	goto out_freepages;
	212
dead28da	213	msg.rpc_proc = &server->client_acl->cl_procinfo[ACLPROC3_SETACL];
6e94d629	214	msg.rpc_resp = fattr;
dead28da	215	status = rpc_call_sync(server->client_acl, &msg, 0);
f41f7418 TM	216	nfs_access_zap_cache(inode);
f41f7418 TM	217	nfs_zap_acl_cache(inode);
b7fa0554 AG	218	dprintk("NFS reply setacl: %d\n", status);
b7fa0554 AG	219
b7fa0554 AG	220	switch (status) {
b7fa0554 AG	221	case 0:
6e94d629	222	status = nfs_refresh_inode(inode, fattr);
013cdf10 CH	223	set_cached_acl(inode, ACL_TYPE_ACCESS, acl);
013cdf10 CH	224	set_cached_acl(inode, ACL_TYPE_DEFAULT, dfacl);
b7fa0554 AG	225	break;
	226	case -EPFNOSUPPORT:
	227	case -EPROTONOSUPPORT:
	228	dprintk("NFS_V3_ACL SETACL RPC not supported"
	229	"(will not retry)\n");
	230	server->caps &= ~NFS_CAP_ACLS;
	231	case -ENOTSUPP:
	232	status = -EOPNOTSUPP;
	233	}
6e94d629	234	nfs_free_fattr(fattr);
ae46141f TM	235	out_freepages:
	236	while (args.npages != 0) {
	237	args.npages--;
	238	__free_page(args.pages[args.npages]);
	239	}
b7fa0554 AG	240	out:
	241	return status;
	242	}
	243
8f493b9c TM	244	int nfs3_proc_setacls(struct inode inode, struct posix_acl acl,
	245	struct posix_acl *dfacl)
	246	{
	247	int ret;
	248	ret = __nfs3_proc_setacls(inode, acl, dfacl);
	249	return (ret == -EOPNOTSUPP) ? 0 : ret;
	250
	251	}
	252
013cdf10	253	int nfs3_set_acl(struct inode inode, struct posix_acl acl, int type)
b7fa0554 AG	254	{
	255	struct posix_acl alloc = NULL, dfacl = NULL;
	256	int status;
	257
	258	if (S_ISDIR(inode->i_mode)) {
	259	switch(type) {
013cdf10 CH	260	case ACL_TYPE_ACCESS:
	261	alloc = dfacl = get_acl(inode, ACL_TYPE_DEFAULT);
	262	if (IS_ERR(alloc))
	263	goto fail;
	264	break;
	265
	266	case ACL_TYPE_DEFAULT:
	267	dfacl = acl;
	268	alloc = acl = get_acl(inode, ACL_TYPE_ACCESS);
	269	if (IS_ERR(alloc))
	270	goto fail;
	271	break;
b7fa0554	272	}
013cdf10	273	}
b7fa0554 AG	274
	275	if (acl == NULL) {
	276	alloc = acl = posix_acl_from_mode(inode->i_mode, GFP_KERNEL);
	277	if (IS_ERR(alloc))
	278	goto fail;
	279	}
8f493b9c	280	status = __nfs3_proc_setacls(inode, acl, dfacl);
b7fa0554 AG	281	posix_acl_release(alloc);
	282	return status;
	283
	284	fail:
	285	return PTR_ERR(alloc);
	286	}
055ffbea	287
013cdf10 CH	288	const struct xattr_handler *nfs3_xattr_handlers[] = {
	289	&posix_acl_access_xattr_handler,
	290	&posix_acl_default_xattr_handler,
	291	NULL,
	292	};
74adf83f CH	293
	294	static int
	295	nfs3_list_one_acl(struct inode inode, int type, const char name, void *data,
	296	size_t size, ssize_t *result)
	297	{
	298	struct posix_acl *acl;
	299	char p = data + result;
	300
	301	acl = get_acl(inode, type);
7a9e75a1	302	if (IS_ERR_OR_NULL(acl))
74adf83f CH	303	return 0;
	304
	305	posix_acl_release(acl);
	306
	307	*result += strlen(name);
	308	*result += 1;
	309	if (!size)
	310	return 0;
	311	if (*result > size)
	312	return -ERANGE;
	313
	314	strcpy(p, name);
	315	return 0;
	316	}
	317
	318	ssize_t
	319	nfs3_listxattr(struct dentry dentry, char data, size_t size)
	320	{
2b0143b5	321	struct inode *inode = d_inode(dentry);
74adf83f CH	322	ssize_t result = 0;
	323	int error;
	324
	325	error = nfs3_list_one_acl(inode, ACL_TYPE_ACCESS,
97d79299	326	XATTR_NAME_POSIX_ACL_ACCESS, data, size, &result);
74adf83f CH	327	if (error)
	328	return error;
	329
	330	error = nfs3_list_one_acl(inode, ACL_TYPE_DEFAULT,
97d79299	331	XATTR_NAME_POSIX_ACL_DEFAULT, data, size, &result);
74adf83f CH	332	if (error)
	333	return error;
	334	return result;
	335	}