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Merge git://git.linux-nfs.org/pub/linux/nfs-2.6

Browse Source 
* git://git.linux-nfs.org/pub/linux/nfs-2.6:
  NFSv4: handle lack of clientaddr in option string
  NFSv4: debug print ntohl(status) in nfs client callback xdr code
  SUNRPC: Clean up the sillyrename code
  NFS: Introduce struct nfs_removeargs+nfs_removeres
  NFS: Use dentry->d_time to store the parent directory verifier.
  SUNRPC: move bkl locking and xdr proc invocation into a common helper
  NFSv4: Fix the nfsv4 readlink reply buffer alignment
  NFSv4: Fix the readdir reply buffer alignment
  NFSv4: More NFSv4 xdr cleanups
  NFSv4: Try to recover from getfh failures in nfs4_xdr_dec_open
  NFSv4: 'constify' lookup arguments.
  NFSv4: Don't fail nfs4_xdr_dec_open if decode_restorefh() failed
  NFSv4: Fix open state recovery
  NFSD/SUNRPC: Fix the automatic selection of RPCSEC_GSS
This commit is contained in:
Linus Torvalds 2007-07-19 14:33:41 -07:00
commit 3e1f900bff
17 changed files with 441 additions and 406 deletions
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2
fs/Kconfig
View File

@ -1674,7 +1674,7 @@ config NFSD_V3_ACL
config NFSD_V4
bool "Provide NFSv4 server support (EXPERIMENTAL)"
depends on NFSD_V3 && EXPERIMENTAL
depends on NFSD && NFSD_V3 && EXPERIMENTAL
select RPCSEC_GSS_KRB5
help
If you would like to include the NFSv4 server as well as the NFSv2

10
fs/nfs/callback_xdr.c
View File

@ -179,7 +179,7 @@ static __be32 decode_getattr_args(struct svc_rqst *rqstp, struct xdr_stream *xdr
args->addr = svc_addr_in(rqstp);
status = decode_bitmap(xdr, args->bitmap);
out:
dprintk("%s: exit with status = %d\n", __FUNCTION__, status);
dprintk("%s: exit with status = %d\n", __FUNCTION__, ntohl(status));
return status;
}
@ -200,7 +200,7 @@ static __be32 decode_recall_args(struct svc_rqst *rqstp, struct xdr_stream *xdr,
args->truncate = ntohl(*p);
status = decode_fh(xdr, &args->fh);
out:
dprintk("%s: exit with status = %d\n", __FUNCTION__, status);
dprintk("%s: exit with status = %d\n", __FUNCTION__, ntohl(status));
return status;
}
@ -349,7 +349,7 @@ static __be32 encode_getattr_res(struct svc_rqst *rqstp, struct xdr_stream *xdr,
status = encode_attr_mtime(xdr, res->bitmap, &res->mtime);
*savep = htonl((unsigned int)((char *)xdr->p - (char *)(savep+1)));
out:
dprintk("%s: exit with status = %d\n", __FUNCTION__, status);
dprintk("%s: exit with status = %d\n", __FUNCTION__, ntohl(status));
return status;
}
@ -392,7 +392,7 @@ static __be32 process_op(struct svc_rqst *rqstp,
status = res;
if (op->encode_res != NULL && status == 0)
status = op->encode_res(rqstp, xdr_out, resp);
dprintk("%s: done, status = %d\n", __FUNCTION__, status);
dprintk("%s: done, status = %d\n", __FUNCTION__, ntohl(status));
return status;
}
@ -431,7 +431,7 @@ static __be32 nfs4_callback_compound(struct svc_rqst *rqstp, void *argp, void *r
}
*hdr_res.status = status;
*hdr_res.nops = htonl(nops);
dprintk("%s: done, status = %u\n", __FUNCTION__, status);
dprintk("%s: done, status = %u\n", __FUNCTION__, ntohl(status));
return rpc_success;
}

8
fs/nfs/dir.c
View File

@ -654,7 +654,7 @@ static int nfs_check_verifier(struct inode *dir, struct dentry *dentry)
if (IS_ROOT(dentry))
return 1;
verf = (unsigned long)dentry->d_fsdata;
verf = dentry->d_time;
if (nfs_caches_unstable(dir)
|| verf != NFS_I(dir)->cache_change_attribute)
return 0;
@ -663,7 +663,7 @@ static int nfs_check_verifier(struct inode *dir, struct dentry *dentry)
static inline void nfs_set_verifier(struct dentry * dentry, unsigned long verf)
{
dentry->d_fsdata = (void *)verf;
dentry->d_time = verf;
}
static void nfs_refresh_verifier(struct dentry * dentry, unsigned long verf)
@ -869,7 +869,7 @@ static void nfs_dentry_iput(struct dentry *dentry, struct inode *inode)
if (dentry->d_flags & DCACHE_NFSFS_RENAMED) {
lock_kernel();
drop_nlink(inode);
nfs_complete_unlink(dentry);
nfs_complete_unlink(dentry, inode);
unlock_kernel();
}
/* When creating a negative dentry, we want to renew d_time */
@ -1411,7 +1411,7 @@ static int nfs_sillyrename(struct inode *dir, struct dentry *dentry)
nfs_renew_times(dentry);
nfs_set_verifier(dentry, nfs_save_change_attribute(dir));
d_move(dentry, sdentry);
error = nfs_async_unlink(dentry);
error = nfs_async_unlink(dir, dentry);
/* If we return 0 we don't unlink */
}
dput(sdentry);

19
fs/nfs/nfs2xdr.c
View File

@ -43,6 +43,7 @@
#define NFS_entry_sz (NFS_filename_sz+3)
#define NFS_diropargs_sz (NFS_fhandle_sz+NFS_filename_sz)
#define NFS_removeargs_sz (NFS_fhandle_sz+NFS_filename_sz)
#define NFS_sattrargs_sz (NFS_fhandle_sz+NFS_sattr_sz)
#define NFS_readlinkargs_sz (NFS_fhandle_sz)
#define NFS_readargs_sz (NFS_fhandle_sz+3)
@ -66,7 +67,7 @@
* Common NFS XDR functions as inlines
*/
static inline __be32 *
xdr_encode_fhandle(__be32 *p, struct nfs_fh *fhandle)
xdr_encode_fhandle(__be32 *p, const struct nfs_fh *fhandle)
{
memcpy(p, fhandle->data, NFS2_FHSIZE);
return p + XDR_QUADLEN(NFS2_FHSIZE);
@ -204,7 +205,7 @@ nfs_xdr_sattrargs(struct rpc_rqst *req, __be32 *p, struct nfs_sattrargs *args)
/*
* Encode directory ops argument
* LOOKUP, REMOVE, RMDIR
* LOOKUP, RMDIR
*/
static int
nfs_xdr_diropargs(struct rpc_rqst *req, __be32 *p, struct nfs_diropargs *args)
@ -215,6 +216,18 @@ nfs_xdr_diropargs(struct rpc_rqst *req, __be32 *p, struct nfs_diropargs *args)
return 0;
}
/*
* Encode REMOVE argument
*/
static int
nfs_xdr_removeargs(struct rpc_rqst *req, __be32 *p, const struct nfs_removeargs *args)
{
p = xdr_encode_fhandle(p, args->fh);
p = xdr_encode_array(p, args->name.name, args->name.len);
req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
return 0;
}
/*
* Arguments to a READ call. Since we read data directly into the page
* cache, we also set up the reply iovec here so that iov[1] points
@ -705,7 +718,7 @@ struct rpc_procinfo nfs_procedures[] = {
PROC(READ, readargs, readres, 3),
PROC(WRITE, writeargs, writeres, 4),
PROC(CREATE, createargs, diropres, 0),
PROC(REMOVE, diropargs, stat, 0),
PROC(REMOVE, removeargs, stat, 0),
PROC(RENAME, renameargs, stat, 0),
PROC(LINK, linkargs, stat, 0),
PROC(SYMLINK, symlinkargs, stat, 0),

60
fs/nfs/nfs3proc.c
View File

@ -349,62 +349,42 @@ nfs3_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
static int
nfs3_proc_remove(struct inode *dir, struct qstr *name)
{
struct nfs_fattr dir_attr;
struct nfs3_diropargs arg = {
.fh = NFS_FH(dir),
.name = name->name,
.len = name->len
struct nfs_removeargs arg = {
.fh = NFS_FH(dir),
.name.len = name->len,
.name.name = name->name,
};
struct rpc_message msg = {
.rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE],
.rpc_argp = &arg,
.rpc_resp = &dir_attr,
struct nfs_removeres res;
struct rpc_message msg = {
.rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE],
.rpc_argp = &arg,
.rpc_resp = &res,
};
int status;
dprintk("NFS call remove %s\n", name->name);
nfs_fattr_init(&dir_attr);
nfs_fattr_init(&res.dir_attr);
status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
nfs_post_op_update_inode(dir, &dir_attr);
nfs_post_op_update_inode(dir, &res.dir_attr);
dprintk("NFS reply remove: %d\n", status);
return status;
}
static int
nfs3_proc_unlink_setup(struct rpc_message *msg, struct dentry *dir, struct qstr *name)
static void
nfs3_proc_unlink_setup(struct rpc_message *msg, struct inode *dir)
{
struct unlinkxdr {
struct nfs3_diropargs arg;
struct nfs_fattr res;
} *ptr;
ptr = kmalloc(sizeof(*ptr), GFP_KERNEL);
if (!ptr)
return -ENOMEM;
ptr->arg.fh = NFS_FH(dir->d_inode);
ptr->arg.name = name->name;
ptr->arg.len = name->len;
nfs_fattr_init(&ptr->res);
msg->rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE];
msg->rpc_argp = &ptr->arg;
msg->rpc_resp = &ptr->res;
return 0;
}
static int
nfs3_proc_unlink_done(struct dentry *dir, struct rpc_task *task)
nfs3_proc_unlink_done(struct rpc_task *task, struct inode *dir)
{
struct rpc_message *msg = &task->tk_msg;
struct nfs_fattr *dir_attr;
if (nfs3_async_handle_jukebox(task, dir->d_inode))
return 1;
if (msg->rpc_argp) {
dir_attr = (struct nfs_fattr*)msg->rpc_resp;
nfs_post_op_update_inode(dir->d_inode, dir_attr);
kfree(msg->rpc_argp);
}
return 0;
struct nfs_removeres *res;
if (nfs3_async_handle_jukebox(task, dir))
return 0;
res = task->tk_msg.rpc_resp;
nfs_post_op_update_inode(dir, &res->dir_attr);
return 1;
}
static int

24
fs/nfs/nfs3xdr.c
View File

@ -50,6 +50,7 @@
#define NFS3_sattrargs_sz (NFS3_fh_sz+NFS3_sattr_sz+3)
#define NFS3_diropargs_sz (NFS3_fh_sz+NFS3_filename_sz)
#define NFS3_removeargs_sz (NFS3_fh_sz+NFS3_filename_sz)
#define NFS3_accessargs_sz (NFS3_fh_sz+1)
#define NFS3_readlinkargs_sz (NFS3_fh_sz)
#define NFS3_readargs_sz (NFS3_fh_sz+3)
@ -65,6 +66,7 @@
#define NFS3_attrstat_sz (1+NFS3_fattr_sz)
#define NFS3_wccstat_sz (1+NFS3_wcc_data_sz)
#define NFS3_removeres_sz (NFS3_wccstat_sz)
#define NFS3_lookupres_sz (1+NFS3_fh_sz+(2 * NFS3_post_op_attr_sz))
#define NFS3_accessres_sz (1+NFS3_post_op_attr_sz+1)
#define NFS3_readlinkres_sz (1+NFS3_post_op_attr_sz+1)
@ -106,7 +108,7 @@ static struct {
* Common NFS XDR functions as inlines
*/
static inline __be32 *
xdr_encode_fhandle(__be32 *p, struct nfs_fh *fh)
xdr_encode_fhandle(__be32 *p, const struct nfs_fh *fh)
{
return xdr_encode_array(p, fh->data, fh->size);
}
@ -299,6 +301,18 @@ nfs3_xdr_diropargs(struct rpc_rqst *req, __be32 *p, struct nfs3_diropargs *args)
return 0;
}
/*
* Encode REMOVE argument
*/
static int
nfs3_xdr_removeargs(struct rpc_rqst *req, __be32 *p, const struct nfs_removeargs *args)
{
p = xdr_encode_fhandle(p, args->fh);
p = xdr_encode_array(p, args->name.name, args->name.len);
req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
return 0;
}
/*
* Encode access() argument
*/
@ -736,6 +750,12 @@ nfs3_xdr_wccstat(struct rpc_rqst *req, __be32 *p, struct nfs_fattr *fattr)
return status;
}
static int
nfs3_xdr_removeres(struct rpc_rqst *req, __be32 *p, struct nfs_removeres *res)
{
return nfs3_xdr_wccstat(req, p, &res->dir_attr);
}
/*
* Decode LOOKUP reply
*/
@ -1126,7 +1146,7 @@ struct rpc_procinfo nfs3_procedures[] = {
PROC(MKDIR, mkdirargs, createres, 0),
PROC(SYMLINK, symlinkargs, createres, 0),
PROC(MKNOD, mknodargs, createres, 0),
PROC(REMOVE, diropargs, wccstat, 0),
PROC(REMOVE, removeargs, removeres, 0),
PROC(RMDIR, diropargs, wccstat, 0),
PROC(RENAME, renameargs, renameres, 0),
PROC(LINK, linkargs, linkres, 0),

2
fs/nfs/nfs4_fs.h
View File

@ -182,7 +182,7 @@ extern int nfs4_do_close(struct path *path, struct nfs4_state *state);
extern struct dentry *nfs4_atomic_open(struct inode *, struct dentry *, struct nameidata *);
extern int nfs4_open_revalidate(struct inode *, struct dentry *, int, struct nameidata *);
extern int nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *fhandle);
extern int nfs4_proc_fs_locations(struct inode *dir, struct qstr *name,
extern int nfs4_proc_fs_locations(struct inode *dir, const struct qstr *name,
struct nfs4_fs_locations *fs_locations, struct page *page);
extern struct nfs4_state_recovery_ops nfs4_reboot_recovery_ops;

122
fs/nfs/nfs4proc.c
View File

@ -66,6 +66,8 @@ static int _nfs4_proc_access(struct inode *inode, struct nfs_access_entry *entry
static int nfs4_handle_exception(const struct nfs_server *server, int errorcode, struct nfs4_exception *exception);
static int nfs4_wait_clnt_recover(struct rpc_clnt *clnt, struct nfs_client *clp);
static int _nfs4_do_access(struct inode *inode, struct rpc_cred *cred, int openflags);
static int _nfs4_proc_lookup(struct inode *dir, const struct qstr *name, struct nfs_fh *fhandle, struct nfs_fattr *fattr);
static int _nfs4_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle, struct nfs_fattr *fattr);
/* Prevent leaks of NFSv4 errors into userland */
int nfs4_map_errors(int err)
@ -552,6 +554,18 @@ static struct nfs_open_context *nfs4_state_find_open_context(struct nfs4_state *
return ERR_PTR(-ENOENT);
}
static struct nfs4_opendata *nfs4_open_recoverdata_alloc(struct nfs_open_context *ctx, struct nfs4_state *state)
{
struct nfs4_opendata *opendata;
opendata = nfs4_opendata_alloc(&ctx->path, state->owner, 0, NULL);
if (opendata == NULL)
return ERR_PTR(-ENOMEM);
opendata->state = state;
atomic_inc(&state->count);
return opendata;
}
static int nfs4_open_recover_helper(struct nfs4_opendata *opendata, mode_t openflags, struct nfs4_state **res)
{
struct nfs4_state *newstate;
@ -626,12 +640,11 @@ static int _nfs4_do_open_reclaim(struct nfs_open_context *ctx, struct nfs4_state
int delegation_type = 0;
int status;
opendata = nfs4_opendata_alloc(&ctx->path, state->owner, 0, NULL);
if (opendata == NULL)
return -ENOMEM;
opendata = nfs4_open_recoverdata_alloc(ctx, state);
if (IS_ERR(opendata))
return PTR_ERR(opendata);
opendata->o_arg.claim = NFS4_OPEN_CLAIM_PREVIOUS;
opendata->o_arg.fh = NFS_FH(state->inode);
nfs_copy_fh(&opendata->o_res.fh, opendata->o_arg.fh);
rcu_read_lock();
delegation = rcu_dereference(NFS_I(state->inode)->delegation);
if (delegation != NULL && (delegation->flags & NFS_DELEGATION_NEED_RECLAIM) != 0)
@ -672,13 +685,12 @@ static int nfs4_open_reclaim(struct nfs4_state_owner *sp, struct nfs4_state *sta
static int _nfs4_open_delegation_recall(struct nfs_open_context *ctx, struct nfs4_state *state, const nfs4_stateid *stateid)
{
struct nfs4_state_owner *sp = state->owner;
struct nfs4_opendata *opendata;
int ret;
opendata = nfs4_opendata_alloc(&ctx->path, sp, 0, NULL);
if (opendata == NULL)
return -ENOMEM;
opendata = nfs4_open_recoverdata_alloc(ctx, state);
if (IS_ERR(opendata))
return PTR_ERR(opendata);
opendata->o_arg.claim = NFS4_OPEN_CLAIM_DELEGATE_CUR;
memcpy(opendata->o_arg.u.delegation.data, stateid->data,
sizeof(opendata->o_arg.u.delegation.data));
@ -823,8 +835,10 @@ static void nfs4_open_prepare(struct rpc_task *task, void *calldata)
/* Update sequence id. */
data->o_arg.id = sp->so_owner_id.id;
data->o_arg.clientid = sp->so_client->cl_clientid;
if (data->o_arg.claim == NFS4_OPEN_CLAIM_PREVIOUS)
if (data->o_arg.claim == NFS4_OPEN_CLAIM_PREVIOUS) {
msg.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_OPEN_NOATTR];
nfs_copy_fh(&data->o_res.fh, data->o_arg.fh);
}
data->timestamp = jiffies;
rpc_call_setup(task, &msg, 0);
return;
@ -918,6 +932,9 @@ static int _nfs4_proc_open(struct nfs4_opendata *data)
if (status != 0 || !data->rpc_done)
return status;
if (o_res->fh.size == 0)
_nfs4_proc_lookup(dir, o_arg->name, &o_res->fh, o_res->f_attr);
if (o_arg->open_flags & O_CREAT) {
update_changeattr(dir, &o_res->cinfo);
nfs_post_op_update_inode(dir, o_res->dir_attr);
@ -929,7 +946,7 @@ static int _nfs4_proc_open(struct nfs4_opendata *data)
return status;
}
if (!(o_res->f_attr->valid & NFS_ATTR_FATTR))
return server->nfs_client->rpc_ops->getattr(server, &o_res->fh, o_res->f_attr);
_nfs4_proc_getattr(server, &o_res->fh, o_res->f_attr);
return 0;
}
@ -989,9 +1006,9 @@ static int _nfs4_open_expired(struct nfs_open_context *ctx, struct nfs4_state *s
struct nfs4_opendata *opendata;
int ret;
opendata = nfs4_opendata_alloc(&ctx->path, state->owner, 0, NULL);
if (opendata == NULL)
return -ENOMEM;
opendata = nfs4_open_recoverdata_alloc(ctx, state);
if (IS_ERR(opendata))
return PTR_ERR(opendata);
ret = nfs4_open_recover(opendata, state);
if (ret == -ESTALE) {
/* Invalidate the state owner so we don't ever use it again */
@ -1553,7 +1570,7 @@ static int nfs4_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle,
* Note that we'll actually follow the referral later when
* we detect fsid mismatch in inode revalidation
*/
static int nfs4_get_referral(struct inode *dir, struct qstr *name, struct nfs_fattr *fattr, struct nfs_fh *fhandle)
static int nfs4_get_referral(struct inode *dir, const struct qstr *name, struct nfs_fattr *fattr, struct nfs_fh *fhandle)
{
int status = -ENOMEM;
struct page *page = NULL;
@ -1668,8 +1685,8 @@ nfs4_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
return status;
}
static int _nfs4_proc_lookupfh(struct nfs_server *server, struct nfs_fh *dirfh,
struct qstr *name, struct nfs_fh *fhandle,
static int _nfs4_proc_lookupfh(struct nfs_server *server, const struct nfs_fh *dirfh,
const struct qstr *name, struct nfs_fh *fhandle,
struct nfs_fattr *fattr)
{
int status;
@ -1715,7 +1732,7 @@ static int nfs4_proc_lookupfh(struct nfs_server *server, struct nfs_fh *dirfh,
return err;
}
static int _nfs4_proc_lookup(struct inode *dir, struct qstr *name,
static int _nfs4_proc_lookup(struct inode *dir, const struct qstr *name,
struct nfs_fh *fhandle, struct nfs_fattr *fattr)
{
int status;
@ -1908,28 +1925,27 @@ nfs4_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
static int _nfs4_proc_remove(struct inode *dir, struct qstr *name)
{
struct nfs_server *server = NFS_SERVER(dir);
struct nfs4_remove_arg args = {
struct nfs_removeargs args = {
.fh = NFS_FH(dir),
.name = name,
.name.len = name->len,
.name.name = name->name,
.bitmask = server->attr_bitmask,
};
struct nfs_fattr dir_attr;
struct nfs4_remove_res res = {
struct nfs_removeres res = {
.server = server,
.dir_attr = &dir_attr,
};
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_REMOVE],
.rpc_argp = &args,
.rpc_resp = &res,
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_REMOVE],
.rpc_argp = &args,
.rpc_resp = &res,
};
int status;
nfs_fattr_init(res.dir_attr);
nfs_fattr_init(&res.dir_attr);
status = rpc_call_sync(server->client, &msg, 0);
if (status == 0) {
update_changeattr(dir, &res.cinfo);
nfs_post_op_update_inode(dir, res.dir_attr);
nfs_post_op_update_inode(dir, &res.dir_attr);
}
return status;
}
@ -1946,48 +1962,26 @@ static int nfs4_proc_remove(struct inode *dir, struct qstr *name)
return err;
}
struct unlink_desc {
struct nfs4_remove_arg args;
struct nfs4_remove_res res;
struct nfs_fattr dir_attr;
};
static int nfs4_proc_unlink_setup(struct rpc_message *msg, struct dentry *dir,
struct qstr *name)
static void nfs4_proc_unlink_setup(struct rpc_message *msg, struct inode *dir)
{
struct nfs_server *server = NFS_SERVER(dir->d_inode);
struct unlink_desc *up;
struct nfs_server *server = NFS_SERVER(dir);
struct nfs_removeargs *args = msg->rpc_argp;
struct nfs_removeres *res = msg->rpc_resp;
up = kmalloc(sizeof(*up), GFP_KERNEL);
if (!up)
return -ENOMEM;
up->args.fh = NFS_FH(dir->d_inode);
up->args.name = name;
up->args.bitmask = server->attr_bitmask;
up->res.server = server;
up->res.dir_attr = &up->dir_attr;
args->bitmask = server->attr_bitmask;
res->server = server;
msg->rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_REMOVE];
msg->rpc_argp = &up->args;
msg->rpc_resp = &up->res;
return 0;
}
static int nfs4_proc_unlink_done(struct dentry *dir, struct rpc_task *task)
static int nfs4_proc_unlink_done(struct rpc_task *task, struct inode *dir)
{
struct rpc_message *msg = &task->tk_msg;
struct unlink_desc *up;
if (msg->rpc_resp != NULL) {
up = container_of(msg->rpc_resp, struct unlink_desc, res);
update_changeattr(dir->d_inode, &up->res.cinfo);
nfs_post_op_update_inode(dir->d_inode, up->res.dir_attr);
kfree(up);
msg->rpc_resp = NULL;
msg->rpc_argp = NULL;
}
return 0;
struct nfs_removeres *res = task->tk_msg.rpc_resp;
if (nfs4_async_handle_error(task, res->server) == -EAGAIN)
return 0;
update_changeattr(dir, &res->cinfo);
nfs_post_op_update_inode(dir, &res->dir_attr);
return 1;
}
static int _nfs4_proc_rename(struct inode *old_dir, struct qstr *old_name,
@ -3672,7 +3666,7 @@ ssize_t nfs4_listxattr(struct dentry *dentry, char *buf, size_t buflen)
return len;
}
int nfs4_proc_fs_locations(struct inode *dir, struct qstr *name,
int nfs4_proc_fs_locations(struct inode *dir, const struct qstr *name,
struct nfs4_fs_locations *fs_locations, struct page *page)
{
struct nfs_server *server = NFS_SERVER(dir);

274
fs/nfs/nfs4xdr.c
View File

@ -72,10 +72,15 @@ static int nfs4_stat_to_errno(int);
*/
#define open_owner_id_maxsz (1 + 4)
#define lock_owner_id_maxsz (1 + 4)
#define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
#define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2))
#define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2))
#define op_encode_hdr_maxsz (1)
#define op_decode_hdr_maxsz (2)
#define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE))
#define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE))
#define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE))
#define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE))
#define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \
(NFS4_FHSIZE >> 2))
#define decode_putfh_maxsz (op_decode_hdr_maxsz)
@ -96,6 +101,11 @@ static int nfs4_stat_to_errno(int);
#define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \
nfs4_fattr_value_maxsz)
#define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz)
#define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \
1 + 2 + 1 + \
nfs4_owner_maxsz + \
nfs4_group_maxsz + \
4 + 4)
#define encode_savefh_maxsz (op_encode_hdr_maxsz)
#define decode_savefh_maxsz (op_decode_hdr_maxsz)
#define encode_restorefh_maxsz (op_encode_hdr_maxsz)
@ -123,7 +133,7 @@ static int nfs4_stat_to_errno(int);
#define decode_lookup_maxsz (op_decode_hdr_maxsz)
#define encode_share_access_maxsz \
(2)
#define encode_createmode_maxsz (1 + nfs4_fattr_maxsz)
#define encode_createmode_maxsz (1 + encode_attrs_maxsz)
#define encode_opentype_maxsz (1 + encode_createmode_maxsz)
#define encode_claim_null_maxsz (1 + nfs4_name_maxsz)
#define encode_open_maxsz (op_encode_hdr_maxsz + \
@ -132,14 +142,52 @@ static int nfs4_stat_to_errno(int);
encode_opentype_maxsz + \
encode_claim_null_maxsz)
#define decode_ace_maxsz (3 + nfs4_owner_maxsz)
#define decode_delegation_maxsz (1 + XDR_QUADLEN(NFS4_STATEID_SIZE) + 1 + \
#define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \
decode_ace_maxsz)
#define decode_change_info_maxsz (5)
#define decode_open_maxsz (op_decode_hdr_maxsz + \
XDR_QUADLEN(NFS4_STATEID_SIZE) + \
decode_stateid_maxsz + \
decode_change_info_maxsz + 1 + \
nfs4_fattr_bitmap_maxsz + \
decode_delegation_maxsz)
#define encode_open_confirm_maxsz \
(op_encode_hdr_maxsz + \
encode_stateid_maxsz + 1)
#define decode_open_confirm_maxsz \
(op_decode_hdr_maxsz + \
decode_stateid_maxsz)
#define encode_open_downgrade_maxsz \
(op_encode_hdr_maxsz + \
encode_stateid_maxsz + 1 + \
encode_share_access_maxsz)
#define decode_open_downgrade_maxsz \
(op_decode_hdr_maxsz + \
decode_stateid_maxsz)
#define encode_close_maxsz (op_encode_hdr_maxsz + \
1 + encode_stateid_maxsz)
#define decode_close_maxsz (op_decode_hdr_maxsz + \
decode_stateid_maxsz)
#define encode_setattr_maxsz (op_encode_hdr_maxsz + \
encode_stateid_maxsz + \
encode_attrs_maxsz)
#define decode_setattr_maxsz (op_decode_hdr_maxsz + \
nfs4_fattr_bitmap_maxsz)
#define encode_read_maxsz (op_encode_hdr_maxsz + \
encode_stateid_maxsz + 3)
#define decode_read_maxsz (op_decode_hdr_maxsz + 2)
#define encode_readdir_maxsz (op_encode_hdr_maxsz + \
2 + encode_verifier_maxsz + 5)
#define decode_readdir_maxsz (op_decode_hdr_maxsz + \
decode_verifier_maxsz)
#define encode_readlink_maxsz (op_encode_hdr_maxsz)
#define decode_readlink_maxsz (op_decode_hdr_maxsz + 1)
#define encode_write_maxsz (op_encode_hdr_maxsz + \
encode_stateid_maxsz + 4)
#define decode_write_maxsz (op_decode_hdr_maxsz + \
2 + decode_verifier_maxsz)
#define encode_commit_maxsz (op_encode_hdr_maxsz + 3)
#define decode_commit_maxsz (op_decode_hdr_maxsz + \
decode_verifier_maxsz)
#define encode_remove_maxsz (op_encode_hdr_maxsz + \
nfs4_name_maxsz)
#define encode_rename_maxsz (op_encode_hdr_maxsz + \
@ -148,19 +196,44 @@ static int nfs4_stat_to_errno(int);
#define encode_link_maxsz (op_encode_hdr_maxsz + \
nfs4_name_maxsz)
#define decode_link_maxsz (op_decode_hdr_maxsz + 5)
#define encode_lock_maxsz (op_encode_hdr_maxsz + \
7 + \
1 + encode_stateid_maxsz + 8)
#define decode_lock_denied_maxsz \
(8 + decode_lockowner_maxsz)
#define decode_lock_maxsz (op_decode_hdr_maxsz + \
decode_lock_denied_maxsz)
#define encode_lockt_maxsz (op_encode_hdr_maxsz + 12)
#define decode_lockt_maxsz (op_decode_hdr_maxsz + \
decode_lock_denied_maxsz)
#define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \
encode_stateid_maxsz + \
4)
#define decode_locku_maxsz (op_decode_hdr_maxsz + \
decode_stateid_maxsz)
#define encode_access_maxsz (op_encode_hdr_maxsz + 1)
#define decode_access_maxsz (op_decode_hdr_maxsz + 2)
#define encode_symlink_maxsz (op_encode_hdr_maxsz + \
1 + nfs4_name_maxsz + \
1 + \
nfs4_fattr_maxsz)
#define decode_symlink_maxsz (op_decode_hdr_maxsz + 8)
#define encode_create_maxsz (op_encode_hdr_maxsz + \
2 + nfs4_name_maxsz + \
nfs4_fattr_maxsz)
1 + 2 + nfs4_name_maxsz + \
encode_attrs_maxsz)
#define decode_create_maxsz (op_decode_hdr_maxsz + \
decode_change_info_maxsz + \
nfs4_fattr_bitmap_maxsz)
#define encode_statfs_maxsz (encode_getattr_maxsz)
#define decode_statfs_maxsz (decode_getattr_maxsz)
#define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4)
#define decode_delegreturn_maxsz (op_decode_hdr_maxsz)
#define encode_getacl_maxsz (encode_getattr_maxsz)
#define decode_getacl_maxsz (op_decode_hdr_maxsz + \
nfs4_fattr_bitmap_maxsz + 1)
#define encode_setacl_maxsz (op_encode_hdr_maxsz + \
encode_stateid_maxsz + 3)
#define decode_setacl_maxsz (decode_setattr_maxsz)
#define encode_fs_locations_maxsz \
(encode_getattr_maxsz)
#define decode_fs_locations_maxsz \
@ -169,37 +242,37 @@ static int nfs4_stat_to_errno(int);
#define NFS4_dec_compound_sz (1024) /* XXX: large enough? */
#define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
op_encode_hdr_maxsz + 7)
encode_read_maxsz)
#define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \
decode_putfh_maxsz + \
op_decode_hdr_maxsz + 2)
decode_read_maxsz)
#define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
op_encode_hdr_maxsz)
encode_readlink_maxsz)
#define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \
decode_putfh_maxsz + \
op_decode_hdr_maxsz)
decode_readlink_maxsz)
#define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
op_encode_hdr_maxsz + 9)
encode_readdir_maxsz)
#define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \
decode_putfh_maxsz + \
op_decode_hdr_maxsz + 2)
decode_readdir_maxsz)
#define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
op_encode_hdr_maxsz + 8 + \
encode_write_maxsz + \
encode_getattr_maxsz)
#define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \
decode_putfh_maxsz + \
op_decode_hdr_maxsz + 4 + \
decode_write_maxsz + \
decode_getattr_maxsz)
#define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
op_encode_hdr_maxsz + 3 + \
encode_commit_maxsz + \
encode_getattr_maxsz)
#define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \
decode_putfh_maxsz + \
op_decode_hdr_maxsz + 2 + \
decode_commit_maxsz + \
decode_getattr_maxsz)
#define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
@ -217,13 +290,14 @@ static int nfs4_stat_to_errno(int);
decode_getattr_maxsz + \
decode_restorefh_maxsz + \
decode_getattr_maxsz)
#define NFS4_enc_open_confirm_sz \
(compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
op_encode_hdr_maxsz + 5)
#define NFS4_dec_open_confirm_sz (compound_decode_hdr_maxsz + \
decode_putfh_maxsz + \
op_decode_hdr_maxsz + 4)
#define NFS4_enc_open_confirm_sz \
(compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
encode_open_confirm_maxsz)
#define NFS4_dec_open_confirm_sz \
(compound_decode_hdr_maxsz + \
decode_putfh_maxsz + \
decode_open_confirm_maxsz)
#define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
encode_open_maxsz + \
@ -234,31 +308,30 @@ static int nfs4_stat_to_errno(int);
decode_getattr_maxsz)
#define NFS4_enc_open_downgrade_sz \
(compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
op_encode_hdr_maxsz + 7 + \
encode_getattr_maxsz)
encode_putfh_maxsz + \
encode_open_downgrade_maxsz + \
encode_getattr_maxsz)
#define NFS4_dec_open_downgrade_sz \
(compound_decode_hdr_maxsz + \
decode_putfh_maxsz + \
op_decode_hdr_maxsz + 4 + \
decode_getattr_maxsz)
#define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
op_encode_hdr_maxsz + 5 + \
encode_getattr_maxsz)
#define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \
decode_putfh_maxsz + \
op_decode_hdr_maxsz + 4 + \
decode_getattr_maxsz)
#define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
op_encode_hdr_maxsz + 4 + \
nfs4_fattr_maxsz + \
encode_getattr_maxsz)
#define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \
decode_putfh_maxsz + \
op_decode_hdr_maxsz + 3 + \
nfs4_fattr_maxsz)
decode_putfh_maxsz + \
decode_open_downgrade_maxsz + \
decode_getattr_maxsz)
#define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
encode_close_maxsz + \
encode_getattr_maxsz)
#define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \
decode_putfh_maxsz + \
decode_close_maxsz + \
decode_getattr_maxsz)
#define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
encode_setattr_maxsz + \
encode_getattr_maxsz)
#define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \
decode_putfh_maxsz + \
decode_setattr_maxsz + \
decode_getattr_maxsz)
#define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
encode_fsinfo_maxsz)
@ -285,39 +358,28 @@ static int nfs4_stat_to_errno(int);
decode_fsinfo_maxsz)
#define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
encode_getattr_maxsz + \
op_encode_hdr_maxsz + \
1 + 1 + 2 + 2 + \
1 + 4 + 1 + 2 + \
lock_owner_id_maxsz)
encode_lock_maxsz)
#define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \
decode_putfh_maxsz + \
decode_getattr_maxsz + \
op_decode_hdr_maxsz + \
2 + 2 + 1 + 2 + \
lock_owner_id_maxsz)
decode_lock_maxsz)
#define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
encode_getattr_maxsz + \
op_encode_hdr_maxsz + \
1 + 2 + 2 + 2 + \
lock_owner_id_maxsz)
#define NFS4_dec_lockt_sz (NFS4_dec_lock_sz)
encode_lockt_maxsz)
#define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \
decode_putfh_maxsz + \
decode_lockt_maxsz)
#define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
encode_getattr_maxsz + \
op_encode_hdr_maxsz + \
1 + 1 + 4 + 2 + 2)
encode_locku_maxsz)
#define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \
decode_putfh_maxsz + \
decode_getattr_maxsz + \
op_decode_hdr_maxsz + 4)
decode_locku_maxsz)
#define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
op_encode_hdr_maxsz + 1)
encode_access_maxsz)
#define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \
decode_putfh_maxsz + \
op_decode_hdr_maxsz + 2)
decode_access_maxsz)
#define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
encode_getattr_maxsz)
@ -416,10 +478,10 @@ static int nfs4_stat_to_errno(int);
decode_getattr_maxsz)
#define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
encode_getattr_maxsz)
encode_statfs_maxsz)
#define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \
decode_putfh_maxsz + \
op_decode_hdr_maxsz + 12)
decode_statfs_maxsz)
#define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
encode_getattr_maxsz)
@ -435,18 +497,16 @@ static int nfs4_stat_to_errno(int);
decode_getattr_maxsz)
#define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
encode_getattr_maxsz)
encode_getacl_maxsz)
#define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \
decode_putfh_maxsz + \
op_decode_hdr_maxsz + \
nfs4_fattr_bitmap_maxsz + 1)
decode_getacl_maxsz)
#define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
op_encode_hdr_maxsz + 4 + \
nfs4_fattr_bitmap_maxsz + 1)
encode_setacl_maxsz)
#define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \
decode_putfh_maxsz + \
op_decode_hdr_maxsz + nfs4_fattr_bitmap_maxsz)
decode_setacl_maxsz)
#define NFS4_enc_fs_locations_sz \
(compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
@ -1108,12 +1168,10 @@ static int encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args)
static int encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req)
{
struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
uint32_t attrs[2] = {
FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID,
FATTR4_WORD1_MOUNTED_ON_FILEID,
};
int replen;
__be32 *p;
RESERVE_SPACE(12+NFS4_VERIFIER_SIZE+20);
@ -1138,37 +1196,16 @@ static int encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg
attrs[0] & readdir->bitmask[0],
attrs[1] & readdir->bitmask[1]);
/* set up reply kvec
* toplevel_status + taglen + rescount + OP_PUTFH + status
* + OP_READDIR + status + verifer(2) = 9
*/
replen = (RPC_REPHDRSIZE + auth->au_rslack + 9) << 2;
xdr_inline_pages(&req->rq_rcv_buf, replen, readdir->pages,
readdir->pgbase, readdir->count);
dprintk("%s: inlined page args = (%u, %p, %u, %u)\n",
__FUNCTION__, replen, readdir->pages,
readdir->pgbase, readdir->count);
return 0;
}
static int encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req)
{
struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
unsigned int replen;
__be32 *p;
RESERVE_SPACE(4);
WRITE32(OP_READLINK);
/* set up reply kvec
* toplevel_status + taglen + rescount + OP_PUTFH + status
* + OP_READLINK + status + string length = 8
*/
replen = (RPC_REPHDRSIZE + auth->au_rslack + 8) << 2;
xdr_inline_pages(&req->rq_rcv_buf, replen, readlink->pages,
readlink->pgbase, readlink->pglen);
return 0;
}
@ -1398,7 +1435,7 @@ static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, __be32 *p, const struc
/*
* Encode REMOVE request
*/
static int nfs4_xdr_enc_remove(struct rpc_rqst *req, __be32 *p, const struct nfs4_remove_arg *args)
static int nfs4_xdr_enc_remove(struct rpc_rqst *req, __be32 *p, const struct nfs_removeargs *args)
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
@ -1410,7 +1447,7 @@ static int nfs4_xdr_enc_remove(struct rpc_rqst *req, __be32 *p, const struct nfs
encode_compound_hdr(&xdr, &hdr);
if ((status = encode_putfh(&xdr, args->fh)) != 0)
goto out;
if ((status = encode_remove(&xdr, args->name)) != 0)
if ((status = encode_remove(&xdr, &args->name)) != 0)
goto out;
status = encode_getfattr(&xdr, args->bitmask);
out:
@ -1734,6 +1771,8 @@ static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct n
struct compound_hdr hdr = {
.nops = 2,
};
struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
unsigned int replen;
int status;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
@ -1742,6 +1781,15 @@ static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct n
if(status)
goto out;
status = encode_readlink(&xdr, args, req);
/* set up reply kvec
* toplevel_status + taglen + rescount + OP_PUTFH + status
* + OP_READLINK + status + string length = 8
*/
replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_readlink_sz) << 2;
xdr_inline_pages(&req->rq_rcv_buf, replen, args->pages,
args->pgbase, args->pglen);
out:
return status;
}
@ -1755,6 +1803,8 @@ static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nf
struct compound_hdr hdr = {
.nops = 2,
};
struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
int replen;
int status;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
@ -1763,6 +1813,18 @@ static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nf
if(status)
goto out;
status = encode_readdir(&xdr, args, req);
/* set up reply kvec
* toplevel_status + taglen + rescount + OP_PUTFH + status
* + OP_READDIR + status + verifer(2) = 9
*/
replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_readdir_sz) << 2;
xdr_inline_pages(&req->rq_rcv_buf, replen, args->pages,
args->pgbase, args->count);
dprintk("%s: inlined page args = (%u, %p, %u, %u)\n",
__FUNCTION__, replen, args->pages,
args->pgbase, args->count);
out:
return status;
}
@ -3161,11 +3223,12 @@ static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh)
uint32_t len;
int status;
/* Zero handle first to allow comparisons */
memset(fh, 0, sizeof(*fh));
status = decode_op_hdr(xdr, OP_GETFH);
if (status)
return status;
/* Zero handle first to allow comparisons */
memset(fh, 0, sizeof(*fh));
READ_BUF(4);
READ32(len);
@ -3772,7 +3835,7 @@ static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, __be32 *p, struct nf
/*
* Decode REMOVE response
*/
static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_remove_res *res)
static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs_removeres *res)
{
struct xdr_stream xdr;
struct compound_hdr hdr;
@ -3785,7 +3848,7 @@ static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_re
goto out;
if ((status = decode_remove(&xdr, &res->cinfo)) != 0)
goto out;
decode_getfattr(&xdr, res->dir_attr, res->server);
decode_getfattr(&xdr, &res->dir_attr, res->server);
out:
return status;
}
@ -4030,12 +4093,11 @@ static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openr
status = decode_open(&xdr, res);
if (status)
goto out;
status = decode_getfh(&xdr, &res->fh);
if (status)
if (decode_getfh(&xdr, &res->fh) != 0)
goto out;
if (decode_getfattr(&xdr, res->f_attr, res->server) != 0)
goto out;
if ((status = decode_restorefh(&xdr)) != 0)
if (decode_restorefh(&xdr) != 0)
goto out;
decode_getfattr(&xdr, res->dir_attr, res->server);
out:

40
fs/nfs/proc.c
View File

@ -272,14 +272,14 @@ nfs_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
static int
nfs_proc_remove(struct inode *dir, struct qstr *name)
{
struct nfs_diropargs arg = {
.fh = NFS_FH(dir),
.name = name->name,
.len = name->len
struct nfs_removeargs arg = {
.fh = NFS_FH(dir),
.name.len = name->len,
.name.name = name->name,
};
struct rpc_message msg = {
.rpc_proc = &nfs_procedures[NFSPROC_REMOVE],
.rpc_argp = &arg,
struct rpc_message msg = {
.rpc_proc = &nfs_procedures[NFSPROC_REMOVE],
.rpc_argp = &arg,
};
int status;
@ -291,32 +291,16 @@ nfs_proc_remove(struct inode *dir, struct qstr *name)
return status;
}
static int
nfs_proc_unlink_setup(struct rpc_message *msg, struct dentry *dir, struct qstr *name)
static void
nfs_proc_unlink_setup(struct rpc_message *msg, struct inode *dir)
{
struct nfs_diropargs *arg;
arg = kmalloc(sizeof(*arg), GFP_KERNEL);
if (!arg)
return -ENOMEM;
arg->fh = NFS_FH(dir->d_inode);
arg->name = name->name;
arg->len = name->len;
msg->rpc_proc = &nfs_procedures[NFSPROC_REMOVE];
msg->rpc_argp = arg;
return 0;
}
static int
nfs_proc_unlink_done(struct dentry *dir, struct rpc_task *task)
static int nfs_proc_unlink_done(struct rpc_task *task, struct inode *dir)
{
struct rpc_message *msg = &task->tk_msg;
if (msg->rpc_argp) {
nfs_mark_for_revalidate(dir->d_inode);
kfree(msg->rpc_argp);
}
return 0;
nfs_mark_for_revalidate(dir);
return 1;
}
static int

7
fs/nfs/super.c
View File

@ -1685,6 +1685,9 @@ static int nfs4_validate_mount_data(struct nfs4_mount_data **options,
dprintk("MNTPATH: %s\n", *mntpath);
if (args.client_address == NULL)
goto out_no_client_address;
*ip_addr = args.client_address;
break;
@ -1705,6 +1708,10 @@ static int nfs4_validate_mount_data(struct nfs4_mount_data **options,
out_no_address:
dfprintk(MOUNT, "NFS4: mount program didn't pass remote address\n");
return -EINVAL;
out_no_client_address:
dfprintk(MOUNT, "NFS4: mount program didn't pass callback address\n");
return -EINVAL;
}
/*

193
fs/nfs/unlink.c
View File

@ -3,7 +3,6 @@
*
* nfs sillydelete handling
*
* NOTE: we rely on holding the BKL for list manipulation protection.
*/
#include <linux/slab.h>
@ -15,46 +14,23 @@
struct nfs_unlinkdata {
struct nfs_unlinkdata *next;
struct dentry *dir, *dentry;
struct qstr name;
struct rpc_task task;
struct nfs_removeargs args;
struct nfs_removeres res;
struct inode *dir;
struct rpc_cred *cred;
unsigned int count;
};
static struct nfs_unlinkdata *nfs_deletes;
static RPC_WAITQ(nfs_delete_queue, "nfs_delete_queue");
/**
* nfs_detach_unlinkdata - Remove asynchronous unlink from global list
* @data: pointer to descriptor
*/
static inline void
nfs_detach_unlinkdata(struct nfs_unlinkdata *data)
{
struct nfs_unlinkdata **q;
for (q = &nfs_deletes; *q != NULL; q = &((*q)->next)) {
if (*q == data) {
*q = data->next;
break;
}
}
}
/**
* nfs_put_unlinkdata - release data from a sillydelete operation.
* nfs_free_unlinkdata - release data from a sillydelete operation.
* @data: pointer to unlink structure.
*/
static void
nfs_put_unlinkdata(struct nfs_unlinkdata *data)
nfs_free_unlinkdata(struct nfs_unlinkdata *data)
{
if (--data->count == 0) {
nfs_detach_unlinkdata(data);
kfree(data->name.name);
kfree(data);
}
iput(data->dir);
put_rpccred(data->cred);
kfree(data->args.name.name);
kfree(data);
}
#define NAME_ALLOC_LEN(len) ((len+16) & ~15)
@ -63,50 +39,36 @@ nfs_put_unlinkdata(struct nfs_unlinkdata *data)
* @dentry: pointer to dentry
* @data: nfs_unlinkdata
*/
static inline void
nfs_copy_dname(struct dentry *dentry, struct nfs_unlinkdata *data)
static int nfs_copy_dname(struct dentry *dentry, struct nfs_unlinkdata *data)
{
char *str;
int len = dentry->d_name.len;
str = kmalloc(NAME_ALLOC_LEN(len), GFP_KERNEL);
str = kmemdup(dentry->d_name.name, NAME_ALLOC_LEN(len), GFP_KERNEL);
if (!str)
return;
memcpy(str, dentry->d_name.name, len);
if (!data->name.len) {
data->name.len = len;
data->name.name = str;
} else
kfree(str);
return -ENOMEM;
data->args.name.len = len;
data->args.name.name = str;
return 0;
}
/**
* nfs_async_unlink_init - Initialize the RPC info
* @task: rpc_task of the sillydelete
*
* We delay initializing RPC info until after the call to dentry_iput()
* in order to minimize races against rename().
* task: rpc_task of the sillydelete
*/
static void nfs_async_unlink_init(struct rpc_task *task, void *calldata)
{
struct nfs_unlinkdata *data = calldata;
struct dentry *dir = data->dir;
struct rpc_message msg = {
.rpc_cred = data->cred,
struct nfs_unlinkdata *data = calldata;
struct inode *dir = data->dir;
struct rpc_message msg = {
.rpc_argp = &data->args,
.rpc_resp = &data->res,
.rpc_cred = data->cred,
};
int status = -ENOENT;
if (!data->name.len)
goto out_err;
status = NFS_PROTO(dir->d_inode)->unlink_setup(&msg, dir, &data->name);
if (status < 0)
goto out_err;
nfs_begin_data_update(dir->d_inode);
nfs_begin_data_update(dir);
NFS_PROTO(dir)->unlink_setup(&msg, dir);
rpc_call_setup(task, &msg, 0);
return;
out_err:
rpc_exit(task, status);
}
/**
@ -117,19 +79,13 @@ static void nfs_async_unlink_init(struct rpc_task *task, void *calldata)
*/
static void nfs_async_unlink_done(struct rpc_task *task, void *calldata)
{
struct nfs_unlinkdata *data = calldata;
struct dentry *dir = data->dir;
struct inode *dir_i;
struct nfs_unlinkdata *data = calldata;
struct inode *dir = data->dir;
if (!dir)
return;
dir_i = dir->d_inode;
nfs_end_data_update(dir_i);
if (NFS_PROTO(dir_i)->unlink_done(dir, task))
return;
put_rpccred(data->cred);
data->cred = NULL;
dput(dir);
if (!NFS_PROTO(dir)->unlink_done(task, dir))
rpc_restart_call(task);
else
nfs_end_data_update(dir);
}
/**
@ -142,7 +98,7 @@ static void nfs_async_unlink_done(struct rpc_task *task, void *calldata)
static void nfs_async_unlink_release(void *calldata)
{
struct nfs_unlinkdata *data = calldata;
nfs_put_unlinkdata(data);
nfs_free_unlinkdata(data);
}
static const struct rpc_call_ops nfs_unlink_ops = {
@ -151,73 +107,94 @@ static const struct rpc_call_ops nfs_unlink_ops = {
.rpc_release = nfs_async_unlink_release,
};
static int nfs_call_unlink(struct dentry *dentry, struct nfs_unlinkdata *data)
{
struct rpc_task *task;
struct dentry *parent;
struct inode *dir;
if (nfs_copy_dname(dentry, data) < 0)
goto out_free;
parent = dget_parent(dentry);
if (parent == NULL)
goto out_free;
dir = igrab(parent->d_inode);
dput(parent);
if (dir == NULL)
goto out_free;
data->dir = dir;
data->args.fh = NFS_FH(dir);
nfs_fattr_init(&data->res.dir_attr);
task = rpc_run_task(NFS_CLIENT(dir), RPC_TASK_ASYNC, &nfs_unlink_ops, data);
if (!IS_ERR(task))
rpc_put_task(task);
return 1;
out_free:
return 0;
}
/**
* nfs_async_unlink - asynchronous unlinking of a file
* @dir: parent directory of dentry
* @dentry: dentry to unlink
*/
int
nfs_async_unlink(struct dentry *dentry)
nfs_async_unlink(struct inode *dir, struct dentry *dentry)
{
struct dentry *dir = dentry->d_parent;
struct nfs_unlinkdata *data;
struct rpc_clnt *clnt = NFS_CLIENT(dir->d_inode);
int status = -ENOMEM;
struct nfs_unlinkdata *data;
int status = -ENOMEM;
data = kzalloc(sizeof(*data), GFP_KERNEL);
if (!data)
if (data == NULL)
goto out;
data->cred = rpcauth_lookupcred(clnt->cl_auth, 0);
data->cred = rpcauth_lookupcred(NFS_CLIENT(dir)->cl_auth, 0);
if (IS_ERR(data->cred)) {
status = PTR_ERR(data->cred);
goto out_free;
}
data->dir = dget(dir);
data->dentry = dentry;
data->next = nfs_deletes;
nfs_deletes = data;
data->count = 1;
rpc_init_task(&data->task, clnt, RPC_TASK_ASYNC, &nfs_unlink_ops, data);
status = -EBUSY;
spin_lock(&dentry->d_lock);
if (dentry->d_flags & DCACHE_NFSFS_RENAMED)
goto out_unlock;
dentry->d_flags |= DCACHE_NFSFS_RENAMED;
dentry->d_fsdata = data;
spin_unlock(&dentry->d_lock);
rpc_sleep_on(&nfs_delete_queue, &data->task, NULL, NULL);
status = 0;
out:
return status;
return 0;
out_unlock:
spin_unlock(&dentry->d_lock);
put_rpccred(data->cred);
out_free:
kfree(data);
out:
return status;
}
/**
* nfs_complete_unlink - Initialize completion of the sillydelete
* @dentry: dentry to delete
* @inode: inode
*
* Since we're most likely to be called by dentry_iput(), we
* only use the dentry to find the sillydelete. We then copy the name
* into the qstr.
*/
void
nfs_complete_unlink(struct dentry *dentry)
nfs_complete_unlink(struct dentry *dentry, struct inode *inode)
{
struct nfs_unlinkdata *data;
struct nfs_unlinkdata *data = NULL;
for(data = nfs_deletes; data != NULL; data = data->next) {
if (dentry == data->dentry)
break;
}
if (!data)
return;
data->count++;
nfs_copy_dname(dentry, data);
spin_lock(&dentry->d_lock);
dentry->d_flags &= ~DCACHE_NFSFS_RENAMED;
if (dentry->d_flags & DCACHE_NFSFS_RENAMED) {
dentry->d_flags &= ~DCACHE_NFSFS_RENAMED;
data = dentry->d_fsdata;
}
spin_unlock(&dentry->d_lock);
rpc_wake_up_task(&data->task);
nfs_put_unlinkdata(data);
if (data != NULL && (NFS_STALE(inode) || !nfs_call_unlink(dentry, data)))
nfs_free_unlinkdata(data);
}

4
include/linux/nfs_fs.h
View File

@ -407,8 +407,8 @@ extern void nfs_release_automount_timer(void);
/*
* linux/fs/nfs/unlink.c
*/
extern int nfs_async_unlink(struct dentry *);
extern void nfs_complete_unlink(struct dentry *);
extern int nfs_async_unlink(struct inode *dir, struct dentry *dentry);
extern void nfs_complete_unlink(struct dentry *dentry, struct inode *);
/*
* linux/fs/nfs/write.c

32
include/linux/nfs_xdr.h
View File

@ -277,6 +277,21 @@ struct nfs_writeres {
const struct nfs_server *server;
};
/*
* Common arguments to the unlink call
*/
struct nfs_removeargs {
const struct nfs_fh *fh;
struct qstr name;
const u32 * bitmask;
};
struct nfs_removeres {
const struct nfs_server *server;
struct nfs4_change_info cinfo;
struct nfs_fattr dir_attr;
};
/*
* Argument struct for decode_entry function
*/
@ -631,18 +646,6 @@ struct nfs4_readlink {
struct page ** pages; /* zero-copy data */
};
struct nfs4_remove_arg {
const struct nfs_fh * fh;
const struct qstr * name;
const u32 * bitmask;
};
struct nfs4_remove_res {
const struct nfs_server * server;
struct nfs4_change_info cinfo;
struct nfs_fattr * dir_attr;
};
struct nfs4_rename_arg {
const struct nfs_fh * old_dir;
const struct nfs_fh * new_dir;
@ -788,9 +791,8 @@ struct nfs_rpc_ops {
int (*create) (struct inode *, struct dentry *,
struct iattr *, int, struct nameidata *);
int (*remove) (struct inode *, struct qstr *);
int (*unlink_setup) (struct rpc_message *,
struct dentry *, struct qstr *);
int (*unlink_done) (struct dentry *, struct rpc_task *);
void (*unlink_setup) (struct rpc_message *, struct inode *dir);
int (*unlink_done) (struct rpc_task *, struct inode *);
int (*rename) (struct inode *, struct qstr *,
struct inode *, struct qstr *);
int (*link) (struct inode *, struct inode *, struct qstr *);

16
include/linux/sunrpc/xdr.h
View File

@ -12,6 +12,7 @@
#include <linux/uio.h>
#include <asm/byteorder.h>
#include <linux/scatterlist.h>
#include <linux/smp_lock.h>
/*
* Buffer adjustment
@ -35,6 +36,21 @@ struct xdr_netobj {
*/
typedef int (*kxdrproc_t)(void *rqstp, __be32 *data, void *obj);
/*
* We're still requiring the BKL in the xdr code until it's been
* more carefully audited, at which point this wrapper will become
* unnecessary.
*/
static inline int rpc_call_xdrproc(kxdrproc_t xdrproc, void *rqstp, __be32 *data, void *obj)
{
int ret;
lock_kernel();
ret = xdrproc(rqstp, data, obj);
unlock_kernel();
return ret;
}
/*
* Basic structure for transmission/reception of a client XDR message.
* Features a header (for a linear buffer containing RPC headers

13
net/sunrpc/auth.c
View File

@ -13,7 +13,6 @@
#include <linux/errno.h>
#include <linux/sunrpc/clnt.h>
#include <linux/spinlock.h>
#include <linux/smp_lock.h>
#ifdef RPC_DEBUG
# define RPCDBG_FACILITY RPCDBG_AUTH
@ -476,17 +475,13 @@ rpcauth_wrap_req(struct rpc_task *task, kxdrproc_t encode, void *rqstp,
__be32 *data, void *obj)
{
struct rpc_cred *cred = task->tk_msg.rpc_cred;
int ret;
dprintk("RPC: %5u using %s cred %p to wrap rpc data\n",
task->tk_pid, cred->cr_ops->cr_name, cred);
if (cred->cr_ops->crwrap_req)
return cred->cr_ops->crwrap_req(task, encode, rqstp, data, obj);
/* By default, we encode the arguments normally. */
lock_kernel();
ret = encode(rqstp, data, obj);
unlock_kernel();
return ret;
return rpc_call_xdrproc(encode, rqstp, data, obj);
}
int
@ -494,7 +489,6 @@ rpcauth_unwrap_resp(struct rpc_task *task, kxdrproc_t decode, void *rqstp,
__be32 *data, void *obj)
{
struct rpc_cred *cred = task->tk_msg.rpc_cred;
int ret;
dprintk("RPC: %5u using %s cred %p to unwrap rpc data\n",
task->tk_pid, cred->cr_ops->cr_name, cred);
@ -502,10 +496,7 @@ rpcauth_unwrap_resp(struct rpc_task *task, kxdrproc_t decode, void *rqstp,
return cred->cr_ops->crunwrap_resp(task, decode, rqstp,
data, obj);
/* By default, we decode the arguments normally. */
lock_kernel();
ret = decode(rqstp, data, obj);
unlock_kernel();
return ret;
return rpc_call_xdrproc(decode, rqstp, data, obj);
}
int

21
net/sunrpc/auth_gss/auth_gss.c
View File

@ -43,7 +43,6 @@
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/sched.h>
#include <linux/smp_lock.h>
#include <linux/pagemap.h>
#include <linux/sunrpc/clnt.h>
#include <linux/sunrpc/auth.h>
@ -1000,9 +999,7 @@ gss_wrap_req_integ(struct rpc_cred *cred, struct gss_cl_ctx *ctx,
offset = (u8 *)p - (u8 *)snd_buf->head[0].iov_base;
*p++ = htonl(rqstp->rq_seqno);
lock_kernel();
status = encode(rqstp, p, obj);
unlock_kernel();
status = rpc_call_xdrproc(encode, rqstp, p, obj);
if (status)
return status;
@ -1096,9 +1093,7 @@ gss_wrap_req_priv(struct rpc_cred *cred, struct gss_cl_ctx *ctx,
offset = (u8 *)p - (u8 *)snd_buf->head[0].iov_base;
*p++ = htonl(rqstp->rq_seqno);
lock_kernel();
status = encode(rqstp, p, obj);
unlock_kernel();
status = rpc_call_xdrproc(encode, rqstp, p, obj);
if (status)
return status;
@ -1157,16 +1152,12 @@ gss_wrap_req(struct rpc_task *task,
/* The spec seems a little ambiguous here, but I think that not
* wrapping context destruction requests makes the most sense.
*/
lock_kernel();
status = encode(rqstp, p, obj);
unlock_kernel();
status = rpc_call_xdrproc(encode, rqstp, p, obj);
goto out;
}
switch (gss_cred->gc_service) {
case RPC_GSS_SVC_NONE:
lock_kernel();
status = encode(rqstp, p, obj);
unlock_kernel();
status = rpc_call_xdrproc(encode, rqstp, p, obj);
break;
case RPC_GSS_SVC_INTEGRITY:
status = gss_wrap_req_integ(cred, ctx, encode,
@ -1282,9 +1273,7 @@ gss_unwrap_resp(struct rpc_task *task,
cred->cr_auth->au_rslack = cred->cr_auth->au_verfsize + (p - savedp)
+ (savedlen - head->iov_len);
out_decode:
lock_kernel();
status = decode(rqstp, p, obj);
unlock_kernel();
status = rpc_call_xdrproc(decode, rqstp, p, obj);
out:
gss_put_ctx(ctx);
dprintk("RPC: %5u gss_unwrap_resp returning %d\n", task->tk_pid,