#include <linux/mount.h>
#include <linux/module.h>
#include <linux/sunrpc/bc_xprt.h>
+#include <linux/xattr.h>
+#include <linux/utsname.h>
+#include <linux/mm.h>
#include "nfs4_fs.h"
#include "delegation.h"
}
/*
- * Signal state manager thread if session is drained
+ * Signal state manager thread if session fore channel is drained
*/
-static void nfs41_check_drain_session_complete(struct nfs4_session *ses)
+static void nfs4_check_drain_fc_complete(struct nfs4_session *ses)
{
struct rpc_task *task;
if (ses->fc_slot_table.highest_used_slotid != -1)
return;
- dprintk("%s COMPLETE: Session Drained\n", __func__);
- complete(&ses->complete);
+ dprintk("%s COMPLETE: Session Fore Channel Drained\n", __func__);
+ complete(&ses->fc_slot_table.complete);
+}
+
+/*
+ * Signal state manager thread if session back channel is drained
+ */
+void nfs4_check_drain_bc_complete(struct nfs4_session *ses)
+{
+ if (!test_bit(NFS4_SESSION_DRAINING, &ses->session_state) ||
+ ses->bc_slot_table.highest_used_slotid != -1)
+ return;
+ dprintk("%s COMPLETE: Session Back Channel Drained\n", __func__);
+ complete(&ses->bc_slot_table.complete);
}
static void nfs41_sequence_free_slot(struct nfs4_sequence_res *res)
spin_lock(&tbl->slot_tbl_lock);
nfs4_free_slot(tbl, res->sr_slot);
- nfs41_check_drain_session_complete(res->sr_session);
+ nfs4_check_drain_fc_complete(res->sr_session);
spin_unlock(&tbl->slot_tbl_lock);
res->sr_slot = NULL;
}
struct nfs_closeres res;
struct nfs_fattr fattr;
unsigned long timestamp;
+ bool roc;
+ u32 roc_barrier;
};
static void nfs4_free_closedata(void *data)
struct nfs4_closedata *calldata = data;
struct nfs4_state_owner *sp = calldata->state->owner;
+ if (calldata->roc)
+ pnfs_roc_release(calldata->state->inode);
nfs4_put_open_state(calldata->state);
nfs_free_seqid(calldata->arg.seqid);
nfs4_put_state_owner(sp);
*/
switch (task->tk_status) {
case 0:
+ if (calldata->roc)
+ pnfs_roc_set_barrier(state->inode,
+ calldata->roc_barrier);
nfs_set_open_stateid(state, &calldata->res.stateid, 0);
renew_lease(server, calldata->timestamp);
nfs4_close_clear_stateid_flags(state,
return;
}
- if (calldata->arg.fmode == 0)
+ if (calldata->arg.fmode == 0) {
task->tk_msg.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_CLOSE];
+ if (calldata->roc &&
+ pnfs_roc_drain(calldata->inode, &calldata->roc_barrier)) {
+ rpc_sleep_on(&NFS_SERVER(calldata->inode)->roc_rpcwaitq,
+ task, NULL);
+ return;
+ }
+ }
nfs_fattr_init(calldata->res.fattr);
calldata->timestamp = jiffies;
*
* NOTE: Caller must be holding the sp->so_owner semaphore!
*/
-int nfs4_do_close(struct path *path, struct nfs4_state *state, gfp_t gfp_mask, int wait)
+int nfs4_do_close(struct path *path, struct nfs4_state *state, gfp_t gfp_mask, int wait, bool roc)
{
struct nfs_server *server = NFS_SERVER(state->inode);
struct nfs4_closedata *calldata;
calldata->res.fattr = &calldata->fattr;
calldata->res.seqid = calldata->arg.seqid;
calldata->res.server = server;
+ calldata->roc = roc;
path_get(path);
calldata->path = *path;
- msg.rpc_argp = &calldata->arg,
- msg.rpc_resp = &calldata->res,
+ msg.rpc_argp = &calldata->arg;
+ msg.rpc_resp = &calldata->res;
task_setup_data.callback_data = calldata;
task = rpc_run_task(&task_setup_data);
if (IS_ERR(task))
out_free_calldata:
kfree(calldata);
out:
+ if (roc)
+ pnfs_roc_release(state->inode);
nfs4_put_open_state(state);
nfs4_put_state_owner(sp);
return status;
path = &ctx->path;
fmode = ctx->mode;
}
+ sattr->ia_mode &= ~current_umask();
state = nfs4_do_open(dir, path, fmode, flags, sattr, cred);
d_drop(dentry);
if (IS_ERR(state)) {
{
struct nfs4_exception exception = { };
int err;
+
+ sattr->ia_mode &= ~current_umask();
do {
err = nfs4_handle_exception(NFS_SERVER(dir),
_nfs4_proc_mkdir(dir, dentry, sattr),
{
struct nfs4_exception exception = { };
int err;
+
+ sattr->ia_mode &= ~current_umask();
do {
err = nfs4_handle_exception(NFS_SERVER(dir),
_nfs4_proc_mknod(dir, dentry, sattr, rdev),
}
}
+static int buf_to_pages_noslab(const void *buf, size_t buflen,
+ struct page **pages, unsigned int *pgbase)
+{
+ struct page *newpage, **spages;
+ int rc = 0;
+ size_t len;
+ spages = pages;
+
+ do {
+ len = min_t(size_t, PAGE_CACHE_SIZE, buflen);
+ newpage = alloc_page(GFP_KERNEL);
+
+ if (newpage == NULL)
+ goto unwind;
+ memcpy(page_address(newpage), buf, len);
+ buf += len;
+ buflen -= len;
+ *pages++ = newpage;
+ rc++;
+ } while (buflen != 0);
+
+ return rc;
+
+unwind:
+ for(; rc > 0; rc--)
+ __free_page(spages[rc-1]);
+ return -ENOMEM;
+}
+
struct nfs4_cached_acl {
int cached;
size_t len;
.rpc_argp = &arg,
.rpc_resp = &res,
};
- int ret;
+ int ret, i;
if (!nfs4_server_supports_acls(server))
return -EOPNOTSUPP;
+ i = buf_to_pages_noslab(buf, buflen, arg.acl_pages, &arg.acl_pgbase);
+ if (i < 0)
+ return i;
nfs_inode_return_delegation(inode);
- buf_to_pages(buf, buflen, arg.acl_pages, &arg.acl_pgbase);
ret = nfs4_call_sync(server, &msg, &arg, &res, 1);
+
+ /*
+ * Free each page after tx, so the only ref left is
+ * held by the network stack
+ */
+ for (; i > 0; i--)
+ put_page(pages[i-1]);
+
/*
* Acl update can result in inode attribute update.
* so mark the attribute cache invalid.
struct nfs4_setclientid setclientid = {
.sc_verifier = &sc_verifier,
.sc_prog = program,
+ .sc_cb_ident = clp->cl_cb_ident,
};
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_SETCLIENTID],
if (signalled())
break;
if (loop++ & 1)
- ssleep(clp->cl_lease_time + 1);
+ ssleep(clp->cl_lease_time / HZ + 1);
else
if (++clp->cl_id_uniquifier == 0)
break;
data->rpc_status = 0;
task_setup_data.callback_data = data;
- msg.rpc_argp = &data->args,
- msg.rpc_resp = &data->res,
+ msg.rpc_argp = &data->args;
+ msg.rpc_resp = &data->res;
task = rpc_run_task(&task_setup_data);
if (IS_ERR(task))
return PTR_ERR(task);
goto out;
lsp = request->fl_u.nfs4_fl.owner;
arg.lock_owner.id = lsp->ls_id.id;
+ arg.lock_owner.s_dev = server->s_dev;
status = nfs4_call_sync(server, &msg, &arg, &res, 1);
switch (status) {
case 0:
return ERR_PTR(-ENOMEM);
}
- msg.rpc_argp = &data->arg,
- msg.rpc_resp = &data->res,
+ msg.rpc_argp = &data->arg;
+ msg.rpc_resp = &data->res;
task_setup_data.callback_data = data;
return rpc_run_task(&task_setup_data);
}
p->arg.lock_stateid = &lsp->ls_stateid;
p->arg.lock_owner.clientid = server->nfs_client->cl_clientid;
p->arg.lock_owner.id = lsp->ls_id.id;
+ p->arg.lock_owner.s_dev = server->s_dev;
p->res.lock_seqid = p->arg.lock_seqid;
p->lsp = lsp;
p->server = server;
task = nfs4_do_unlck(&data->fl, data->ctx, data->lsp,
data->arg.lock_seqid);
if (!IS_ERR(task))
- rpc_put_task(task);
+ rpc_put_task_async(task);
dprintk("%s: cancelling lock!\n", __func__);
} else
nfs_free_seqid(data->arg.lock_seqid);
data->arg.reclaim = NFS_LOCK_RECLAIM;
task_setup_data.callback_ops = &nfs4_recover_lock_ops;
}
- msg.rpc_argp = &data->arg,
- msg.rpc_resp = &data->res,
+ msg.rpc_argp = &data->arg;
+ msg.rpc_resp = &data->res;
task_setup_data.callback_data = data;
task = rpc_run_task(&task_setup_data);
if (IS_ERR(task))
return;
args->lock_owner.clientid = server->nfs_client->cl_clientid;
args->lock_owner.id = lsp->ls_id.id;
+ args->lock_owner.s_dev = server->s_dev;
msg.rpc_argp = args;
rpc_call_async(server->client, &msg, 0, &nfs4_release_lockowner_ops, args);
}
#define XATTR_NAME_NFSV4_ACL "system.nfs4_acl"
-int nfs4_setxattr(struct dentry *dentry, const char *key, const void *buf,
- size_t buflen, int flags)
+static int nfs4_xattr_set_nfs4_acl(struct dentry *dentry, const char *key,
+ const void *buf, size_t buflen,
+ int flags, int type)
{
- struct inode *inode = dentry->d_inode;
-
- if (strcmp(key, XATTR_NAME_NFSV4_ACL) != 0)
- return -EOPNOTSUPP;
+ if (strcmp(key, "") != 0)
+ return -EINVAL;
- return nfs4_proc_set_acl(inode, buf, buflen);
+ return nfs4_proc_set_acl(dentry->d_inode, buf, buflen);
}
-/* The getxattr man page suggests returning -ENODATA for unknown attributes,
- * and that's what we'll do for e.g. user attributes that haven't been set.
- * But we'll follow ext2/ext3's lead by returning -EOPNOTSUPP for unsupported
- * attributes in kernel-managed attribute namespaces. */
-ssize_t nfs4_getxattr(struct dentry *dentry, const char *key, void *buf,
- size_t buflen)
+static int nfs4_xattr_get_nfs4_acl(struct dentry *dentry, const char *key,
+ void *buf, size_t buflen, int type)
{
- struct inode *inode = dentry->d_inode;
-
- if (strcmp(key, XATTR_NAME_NFSV4_ACL) != 0)
- return -EOPNOTSUPP;
+ if (strcmp(key, "") != 0)
+ return -EINVAL;
- return nfs4_proc_get_acl(inode, buf, buflen);
+ return nfs4_proc_get_acl(dentry->d_inode, buf, buflen);
}
-ssize_t nfs4_listxattr(struct dentry *dentry, char *buf, size_t buflen)
+static size_t nfs4_xattr_list_nfs4_acl(struct dentry *dentry, char *list,
+ size_t list_len, const char *name,
+ size_t name_len, int type)
{
- size_t len = strlen(XATTR_NAME_NFSV4_ACL) + 1;
+ size_t len = sizeof(XATTR_NAME_NFSV4_ACL);
if (!nfs4_server_supports_acls(NFS_SERVER(dentry->d_inode)))
return 0;
- if (buf && buflen < len)
- return -ERANGE;
- if (buf)
- memcpy(buf, XATTR_NAME_NFSV4_ACL, len);
+
+ if (list && len <= list_len)
+ memcpy(list, XATTR_NAME_NFSV4_ACL, len);
return len;
}
}
#ifdef CONFIG_NFS_V4_1
+/*
+ * Check the exchange flags returned by the server for invalid flags, having
+ * both PNFS and NON_PNFS flags set, and not having one of NON_PNFS, PNFS, or
+ * DS flags set.
+ */
+static int nfs4_check_cl_exchange_flags(u32 flags)
+{
+ if (flags & ~EXCHGID4_FLAG_MASK_R)
+ goto out_inval;
+ if ((flags & EXCHGID4_FLAG_USE_PNFS_MDS) &&
+ (flags & EXCHGID4_FLAG_USE_NON_PNFS))
+ goto out_inval;
+ if (!(flags & (EXCHGID4_FLAG_MASK_PNFS)))
+ goto out_inval;
+ return NFS_OK;
+out_inval:
+ return -NFS4ERR_INVAL;
+}
+
/*
* nfs4_proc_exchange_id()
*
nfs4_verifier verifier;
struct nfs41_exchange_id_args args = {
.client = clp,
- .flags = clp->cl_exchange_flags,
+ .flags = EXCHGID4_FLAG_SUPP_MOVED_REFER,
};
struct nfs41_exchange_id_res res = {
.client = clp,
dprintk("--> %s\n", __func__);
BUG_ON(clp == NULL);
- /* Remove server-only flags */
- args.flags &= ~EXCHGID4_FLAG_CONFIRMED_R;
-
p = (u32 *)verifier.data;
*p++ = htonl((u32)clp->cl_boot_time.tv_sec);
*p = htonl((u32)clp->cl_boot_time.tv_nsec);
args.verifier = &verifier;
- while (1) {
- args.id_len = scnprintf(args.id, sizeof(args.id),
- "%s/%s %u",
- clp->cl_ipaddr,
- rpc_peeraddr2str(clp->cl_rpcclient,
- RPC_DISPLAY_ADDR),
- clp->cl_id_uniquifier);
-
- status = rpc_call_sync(clp->cl_rpcclient, &msg, 0);
-
- if (status != -NFS4ERR_CLID_INUSE)
- break;
-
- if (signalled())
- break;
-
- if (++clp->cl_id_uniquifier == 0)
- break;
- }
+ args.id_len = scnprintf(args.id, sizeof(args.id),
+ "%s/%s.%s/%u",
+ clp->cl_ipaddr,
+ init_utsname()->nodename,
+ init_utsname()->domainname,
+ clp->cl_rpcclient->cl_auth->au_flavor);
+ status = rpc_call_sync(clp->cl_rpcclient, &msg, 0);
+ if (!status)
+ status = nfs4_check_cl_exchange_flags(clp->cl_exchange_flags);
dprintk("<-- %s status= %d\n", __func__, status);
return status;
}
if (!session)
return NULL;
- init_completion(&session->complete);
-
tbl = &session->fc_slot_table;
tbl->highest_used_slotid = -1;
spin_lock_init(&tbl->slot_tbl_lock);
rpc_init_priority_wait_queue(&tbl->slot_tbl_waitq, "ForeChannel Slot table");
+ init_completion(&tbl->complete);
tbl = &session->bc_slot_table;
tbl->highest_used_slotid = -1;
spin_lock_init(&tbl->slot_tbl_lock);
rpc_init_wait_queue(&tbl->slot_tbl_waitq, "BackChannel Slot table");
+ init_completion(&tbl->complete);
session->session_state = 1<<NFS4_SESSION_INITING;
if (IS_ERR(task))
ret = PTR_ERR(task);
else
- rpc_put_task(task);
+ rpc_put_task_async(task);
dprintk("<-- %s status=%d\n", __func__, ret);
return ret;
}
nfs4_layoutget_prepare(struct rpc_task *task, void *calldata)
{
struct nfs4_layoutget *lgp = calldata;
- struct inode *ino = lgp->args.inode;
- struct nfs_server *server = NFS_SERVER(ino);
+ struct nfs_server *server = NFS_SERVER(lgp->args.inode);
dprintk("--> %s\n", __func__);
+ /* Note the is a race here, where a CB_LAYOUTRECALL can come in
+ * right now covering the LAYOUTGET we are about to send.
+ * However, that is not so catastrophic, and there seems
+ * to be no way to prevent it completely.
+ */
if (nfs4_setup_sequence(server, &lgp->args.seq_args,
&lgp->res.seq_res, 0, task))
return;
+ if (pnfs_choose_layoutget_stateid(&lgp->args.stateid,
+ NFS_I(lgp->args.inode)->layout,
+ lgp->args.ctx->state)) {
+ rpc_exit(task, NFS4_OK);
+ return;
+ }
rpc_call_start(task);
}
return;
}
}
- lgp->status = task->tk_status;
dprintk("<-- %s\n", __func__);
}
struct nfs4_layoutget *lgp = calldata;
dprintk("--> %s\n", __func__);
- put_layout_hdr(lgp->args.inode);
if (lgp->res.layout.buf != NULL)
free_page((unsigned long) lgp->res.layout.buf);
put_nfs_open_context(lgp->args.ctx);
if (IS_ERR(task))
return PTR_ERR(task);
status = nfs4_wait_for_completion_rpc_task(task);
- if (status != 0)
- goto out;
- status = lgp->status;
- if (status != 0)
- goto out;
- status = pnfs_layout_process(lgp);
-out:
+ if (status == 0)
+ status = task->tk_status;
+ if (status == 0)
+ status = pnfs_layout_process(lgp);
rpc_put_task(task);
dprintk("<-- %s status=%d\n", __func__, status);
return status;
.permission = nfs_permission,
.getattr = nfs_getattr,
.setattr = nfs_setattr,
- .getxattr = nfs4_getxattr,
- .setxattr = nfs4_setxattr,
- .listxattr = nfs4_listxattr,
+ .getxattr = generic_getxattr,
+ .setxattr = generic_setxattr,
+ .listxattr = generic_listxattr,
+ .removexattr = generic_removexattr,
};
const struct nfs_rpc_ops nfs_v4_clientops = {
.open_context = nfs4_atomic_open,
};
+static const struct xattr_handler nfs4_xattr_nfs4_acl_handler = {
+ .prefix = XATTR_NAME_NFSV4_ACL,
+ .list = nfs4_xattr_list_nfs4_acl,
+ .get = nfs4_xattr_get_nfs4_acl,
+ .set = nfs4_xattr_set_nfs4_acl,
+};
+
+const struct xattr_handler *nfs4_xattr_handlers[] = {
+ &nfs4_xattr_nfs4_acl_handler,
+ NULL
+};
+
/*
* Local variables:
* c-basic-offset: 8
projects / mv-sheeva.git / blobdiff