on or off; rpc.nfsd does this correctly.)
The NFSv4 minorversion 1 (NFSv4.1) implementation in nfsd is based
-on the latest NFSv4.1 Internet Draft:
-http://tools.ietf.org/html/draft-ietf-nfsv4-minorversion1-29
+on RFC 5661.
From the many new features in NFSv4.1 the current implementation
focuses on the mandatory-to-implement NFSv4.1 Sessions, providing
trunking, but this is a mandatory feature, and its use is
recommended to clients in a number of places. (E.g. to ensure
timely renewal in case an existing connection's retry timeouts
- have gotten too long; see section 8.3 of the draft.)
+ have gotten too long; see section 8.3 of the RFC.)
Therefore, lack of this feature may cause future clients to
fail.
- Incomplete backchannel support: incomplete backchannel gss
}
}
}
-
mutex_unlock(&nlm_host_mutex);
+ nsm_release(nsm);
}
/*
* nsm_reboot_lookup - match NLMPROC_SM_NOTIFY arguments to an nsm_handle
* @info: pointer to NLMPROC_SM_NOTIFY arguments
*
- * Returns a matching nsm_handle if found in the nsm cache; the returned
- * nsm_handle's reference count is bumped and sm_monitored is cleared.
- * Otherwise returns NULL if some error occurred.
+ * Returns a matching nsm_handle if found in the nsm cache. The returned
+ * nsm_handle's reference count is bumped. Otherwise returns NULL if some
+ * error occurred.
*/
struct nsm_handle *nsm_reboot_lookup(const struct nlm_reboot *info)
{
atomic_inc(&cached->sm_count);
spin_unlock(&nsm_lock);
- /*
- * During subsequent lock activity, force a fresh
- * notification to be set up for this host.
- */
- cached->sm_monitored = 0;
-
dprintk("lockd: host %s (%s) rebooted, cnt %d\n",
cached->sm_name, cached->sm_addrbuf,
atomic_read(&cached->sm_count));
if (err < 0)
goto out_err;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
err = create_lockd_family(serv, PF_INET6);
if (err < 0 && err != -EAFNOSUPPORT)
goto out_err;
-#endif /* CONFIG_IPV6 || CONFIG_IPV6_MODULE */
warned = 0;
return 0;
dprintk("NFS: Callback listener port = %u (af %u)\n",
nfs_callback_tcpport, PF_INET);
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
ret = svc_create_xprt(serv, "tcp", PF_INET6,
nfs_callback_set_tcpport, SVC_SOCK_ANONYMOUS);
if (ret > 0) {
ret = 0;
else
goto out_err;
-#endif /* defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) */
return svc_prepare_thread(serv, &serv->sv_pools[0]);
int set_callback_cred(void)
{
+ if (callback_cred)
+ return 0;
callback_cred = rpc_lookup_machine_cred();
if (!callback_cred)
return -ENOMEM;
};
int status;
- status = rpc_call_async(cb->cb_client, &msg, RPC_TASK_SOFT,
+ status = rpc_call_async(cb->cb_client, &msg,
+ RPC_TASK_SOFT | RPC_TASK_SOFTCONN,
&nfsd4_cb_probe_ops, (void *)clp);
if (status) {
warn_no_callback_path(clp, status);
static void
nfsd4_sync_rec_dir(void)
{
- mutex_lock(&rec_dir.dentry->d_inode->i_mutex);
- nfsd_sync_dir(rec_dir.dentry);
- mutex_unlock(&rec_dir.dentry->d_inode->i_mutex);
+ vfs_fsync(NULL, rec_dir.dentry, 0);
}
int
}
memcpy(&open->op_stateid, &stp->st_stateid, sizeof(stateid_t));
- if (nfsd4_has_session(&resp->cstate))
+ if (nfsd4_has_session(&resp->cstate)) {
open->op_stateowner->so_confirmed = 1;
+ nfsd4_create_clid_dir(open->op_stateowner->so_client);
+ }
/*
* Attempt to hand out a delegation. No error return, because the
}
op->opnum = ntohl(*argp->p++);
- if (op->opnum >= OP_ACCESS && op->opnum < ops->nops)
+ if (op->opnum >= FIRST_NFS4_OP && op->opnum <= LAST_NFS4_OP)
op->status = ops->decoders[op->opnum](argp, &op->u);
else {
op->opnum = OP_ILLEGAL;
static ssize_t __write_ports_addxprt(char *buf)
{
char transport[16];
+ struct svc_xprt *xprt;
int port, err;
if (sscanf(buf, "%15s %4u", transport, &port) != 2)
err = svc_create_xprt(nfsd_serv, transport,
PF_INET, port, SVC_SOCK_ANONYMOUS);
- if (err < 0) {
- /* Give a reasonable perror msg for bad transport string */
- if (err == -ENOENT)
- err = -EPROTONOSUPPORT;
- return err;
- }
+ if (err < 0)
+ goto out_err;
+
+ err = svc_create_xprt(nfsd_serv, transport,
+ PF_INET6, port, SVC_SOCK_ANONYMOUS);
+ if (err < 0 && err != -EAFNOSUPPORT)
+ goto out_close;
return 0;
+out_close:
+ xprt = svc_find_xprt(nfsd_serv, transport, PF_INET, port);
+ if (xprt != NULL) {
+ svc_close_xprt(xprt);
+ svc_xprt_put(xprt);
+ }
+out_err:
+ /* Decrease the count, but don't shut down the service */
+ nfsd_serv->sv_nrthreads--;
+ return err;
}
/*
#include <linux/jhash.h>
#include <linux/ima.h>
#include <asm/uaccess.h>
+#include <linux/exportfs.h>
+#include <linux/writeback.h>
#ifdef CONFIG_NFSD_V3
#include "xdr3.h"
return err;
}
+/*
+ * Commit metadata changes to stable storage.
+ */
+static int
+commit_metadata(struct svc_fh *fhp)
+{
+ struct inode *inode = fhp->fh_dentry->d_inode;
+ const struct export_operations *export_ops = inode->i_sb->s_export_op;
+ int error = 0;
+
+ if (!EX_ISSYNC(fhp->fh_export))
+ return 0;
+
+ if (export_ops->commit_metadata) {
+ error = export_ops->commit_metadata(inode);
+ } else {
+ struct writeback_control wbc = {
+ .sync_mode = WB_SYNC_ALL,
+ .nr_to_write = 0, /* metadata only */
+ };
+
+ error = sync_inode(inode, &wbc);
+ }
+
+ return error;
+}
/*
* Set various file attributes.
fput(filp);
}
-/*
- * Sync a file
- * As this calls fsync (not fdatasync) there is no need for a write_inode
- * after it.
- */
-static inline int nfsd_dosync(struct file *filp, struct dentry *dp,
- const struct file_operations *fop)
-{
- struct inode *inode = dp->d_inode;
- int (*fsync) (struct file *, struct dentry *, int);
- int err;
-
- err = filemap_write_and_wait(inode->i_mapping);
- if (err == 0 && fop && (fsync = fop->fsync))
- err = fsync(filp, dp, 0);
- return err;
-}
-
-static int
-nfsd_sync(struct file *filp)
-{
- int err;
- struct inode *inode = filp->f_path.dentry->d_inode;
- dprintk("nfsd: sync file %s\n", filp->f_path.dentry->d_name.name);
- mutex_lock(&inode->i_mutex);
- err=nfsd_dosync(filp, filp->f_path.dentry, filp->f_op);
- mutex_unlock(&inode->i_mutex);
-
- return err;
-}
-
-int
-nfsd_sync_dir(struct dentry *dp)
-{
- return nfsd_dosync(NULL, dp, dp->d_inode->i_fop);
-}
-
/*
* Obtain the readahead parameters for the file
* specified by (dev, ino).
if (inode->i_state & I_DIRTY) {
dprintk("nfsd: write sync %d\n", task_pid_nr(current));
- err = nfsd_sync(file);
+ err = vfs_fsync(file, file->f_path.dentry, 0);
}
last_ino = inode->i_ino;
last_dev = inode->i_sb->s_dev;
#ifdef CONFIG_NFSD_V3
/*
* Commit all pending writes to stable storage.
- * Strictly speaking, we could sync just the indicated file region here,
- * but there's currently no way we can ask the VFS to do so.
+ *
+ * Note: we only guarantee that data that lies within the range specified
+ * by the 'offset' and 'count' parameters will be synced.
*
* Unfortunately we cannot lock the file to make sure we return full WCC
* data to the client, as locking happens lower down in the filesystem.
loff_t offset, unsigned long count)
{
struct file *file;
- __be32 err;
+ loff_t end = LLONG_MAX;
+ __be32 err = nfserr_inval;
- if ((u64)count > ~(u64)offset)
- return nfserr_inval;
+ if (offset < 0)
+ goto out;
+ if (count != 0) {
+ end = offset + (loff_t)count - 1;
+ if (end < offset)
+ goto out;
+ }
err = nfsd_open(rqstp, fhp, S_IFREG, NFSD_MAY_WRITE, &file);
if (err)
- return err;
+ goto out;
if (EX_ISSYNC(fhp->fh_export)) {
- if (file->f_op && file->f_op->fsync) {
- err = nfserrno(nfsd_sync(file));
- } else {
+ int err2 = vfs_fsync_range(file, file->f_path.dentry,
+ offset, end, 0);
+
+ if (err2 != -EINVAL)
+ err = nfserrno(err2);
+ else
err = nfserr_notsupp;
- }
}
nfsd_close(file);
+out:
return err;
}
#endif /* CONFIG_NFSD_V3 */
goto out_nfserr;
}
- if (EX_ISSYNC(fhp->fh_export)) {
- err = nfserrno(nfsd_sync_dir(dentry));
- write_inode_now(dchild->d_inode, 1);
- }
+ err = nfsd_create_setattr(rqstp, resfhp, iap);
- err2 = nfsd_create_setattr(rqstp, resfhp, iap);
+ /*
+ * nfsd_setattr already committed the child. Transactional filesystems
+ * had a chance to commit changes for both parent and child
+ * simultaneously making the following commit_metadata a noop.
+ */
+ err2 = nfserrno(commit_metadata(fhp));
if (err2)
err = err2;
mnt_drop_write(fhp->fh_export->ex_path.mnt);
struct dentry *dentry, *dchild = NULL;
struct inode *dirp;
__be32 err;
- __be32 err2;
int host_err;
__u32 v_mtime=0, v_atime=0;
if (created)
*created = 1;
- if (EX_ISSYNC(fhp->fh_export)) {
- err = nfserrno(nfsd_sync_dir(dentry));
- /* setattr will sync the child (or not) */
- }
-
nfsd_check_ignore_resizing(iap);
if (createmode == NFS3_CREATE_EXCLUSIVE) {
}
set_attr:
- err2 = nfsd_create_setattr(rqstp, resfhp, iap);
- if (err2)
- err = err2;
+ err = nfsd_create_setattr(rqstp, resfhp, iap);
+
+ /*
+ * nfsd_setattr already committed the child (and possibly also the parent).
+ */
+ if (!err)
+ err = nfserrno(commit_metadata(fhp));
mnt_drop_write(fhp->fh_export->ex_path.mnt);
/*
}
} else
host_err = vfs_symlink(dentry->d_inode, dnew, path);
-
- if (!host_err) {
- if (EX_ISSYNC(fhp->fh_export))
- host_err = nfsd_sync_dir(dentry);
- }
err = nfserrno(host_err);
+ if (!err)
+ err = nfserrno(commit_metadata(fhp));
fh_unlock(fhp);
mnt_drop_write(fhp->fh_export->ex_path.mnt);
}
host_err = vfs_link(dold, dirp, dnew);
if (!host_err) {
- if (EX_ISSYNC(ffhp->fh_export)) {
- err = nfserrno(nfsd_sync_dir(ddir));
- write_inode_now(dest, 1);
- }
- err = 0;
+ err = nfserrno(commit_metadata(ffhp));
+ if (!err)
+ err = nfserrno(commit_metadata(tfhp));
} else {
if (host_err == -EXDEV && rqstp->rq_vers == 2)
err = nfserr_acces;
goto out_dput_new;
host_err = vfs_rename(fdir, odentry, tdir, ndentry);
- if (!host_err && EX_ISSYNC(tfhp->fh_export)) {
- host_err = nfsd_sync_dir(tdentry);
+ if (!host_err) {
+ host_err = commit_metadata(tfhp);
if (!host_err)
- host_err = nfsd_sync_dir(fdentry);
+ host_err = commit_metadata(ffhp);
}
mnt_drop_write(ffhp->fh_export->ex_path.mnt);
dput(rdentry);
- if (host_err)
- goto out_drop;
- if (EX_ISSYNC(fhp->fh_export))
- host_err = nfsd_sync_dir(dentry);
+ if (!host_err)
+ host_err = commit_metadata(fhp);
-out_drop:
mnt_drop_write(fhp->fh_export->ex_path.mnt);
out_nfserr:
err = nfserrno(host_err);
#include "xfs_vnodeops.h"
#include "xfs_bmap_btree.h"
#include "xfs_inode.h"
+#include "xfs_inode_item.h"
/*
* Note that we only accept fileids which are long enough rather than allow
return d_obtain_alias(VFS_I(cip));
}
+STATIC int
+xfs_fs_nfs_commit_metadata(
+ struct inode *inode)
+{
+ struct xfs_inode *ip = XFS_I(inode);
+ struct xfs_mount *mp = ip->i_mount;
+ int error = 0;
+
+ xfs_ilock(ip, XFS_ILOCK_SHARED);
+ if (xfs_ipincount(ip)) {
+ error = _xfs_log_force_lsn(mp, ip->i_itemp->ili_last_lsn,
+ XFS_LOG_SYNC, NULL);
+ }
+ xfs_iunlock(ip, XFS_ILOCK_SHARED);
+
+ return error;
+}
+
const struct export_operations xfs_export_operations = {
.encode_fh = xfs_fs_encode_fh,
.fh_to_dentry = xfs_fs_fh_to_dentry,
.fh_to_parent = xfs_fs_fh_to_parent,
.get_parent = xfs_fs_get_parent,
+ .commit_metadata = xfs_fs_nfs_commit_metadata,
};
* @fh_to_parent: find the implied object's parent and get a dentry for it
* @get_name: find the name for a given inode in a given directory
* @get_parent: find the parent of a given directory
+ * @commit_metadata: commit metadata changes to stable storage
*
* See Documentation/filesystems/nfs/Exporting for details on how to use
* this interface correctly.
* is also a directory. In the event that it cannot be found, or storage
* space cannot be allocated, a %ERR_PTR should be returned.
*
+ * commit_metadata:
+ * @commit_metadata should commit metadata changes to stable storage.
+ *
* Locking rules:
* get_parent is called with child->d_inode->i_mutex down
* get_name is not (which is possibly inconsistent)
int (*get_name)(struct dentry *parent, char *name,
struct dentry *child);
struct dentry * (*get_parent)(struct dentry *child);
+ int (*commit_metadata)(struct inode *inode);
};
extern int exportfs_encode_fh(struct dentry *dentry, struct fid *fid,
.sin_addr.s_addr = htonl(INADDR_ANY),
.sin_port = htons(port),
};
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
struct sockaddr_in6 sin6 = {
.sin6_family = AF_INET6,
.sin6_addr = IN6ADDR_ANY_INIT,
.sin6_port = htons(port),
};
+#endif /* defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) */
struct sockaddr *sap;
size_t len;
sap = (struct sockaddr *)&sin;
len = sizeof(sin);
break;
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
case PF_INET6:
sap = (struct sockaddr *)&sin6;
len = sizeof(sin6);
break;
+#endif /* defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) */
default:
return ERR_PTR(-EAFNOSUPPORT);
}
err:
spin_unlock(&svc_xprt_class_lock);
dprintk("svc: transport %s not found\n", xprt_name);
- return -ENOENT;
+
+ /* This errno is exposed to user space. Provide a reasonable
+ * perror msg for a bad transport. */
+ return -EPROTONOSUPPORT;
}
EXPORT_SYMBOL_GPL(svc_create_xprt);
spin_unlock_bh(&pool->sp_lock);
len = 0;
- if (test_bit(XPT_LISTENER, &xprt->xpt_flags) &&
- !test_bit(XPT_CLOSE, &xprt->xpt_flags)) {
+ if (test_bit(XPT_CLOSE, &xprt->xpt_flags)) {
+ dprintk("svc_recv: found XPT_CLOSE\n");
+ svc_delete_xprt(xprt);
+ } else if (test_bit(XPT_LISTENER, &xprt->xpt_flags)) {
struct svc_xprt *newxpt;
newxpt = xprt->xpt_ops->xpo_accept(xprt);
if (newxpt) {
svc_xprt_received(newxpt);
}
svc_xprt_received(xprt);
- } else if (!test_bit(XPT_CLOSE, &xprt->xpt_flags)) {
+ } else {
dprintk("svc: server %p, pool %u, transport %p, inuse=%d\n",
rqstp, pool->sp_id, xprt,
atomic_read(&xprt->xpt_ref.refcount));
dprintk("svc: got len=%d\n", len);
}
- if (test_bit(XPT_CLOSE, &xprt->xpt_flags)) {
- dprintk("svc_recv: found XPT_CLOSE\n");
- svc_delete_xprt(xprt);
- }
-
/* No data, incomplete (TCP) read, or accept() */
if (len == 0 || len == -EAGAIN) {
rqstp->rq_res.len = 0;
if (test_bit(XPT_TEMP, &xprt->xpt_flags))
serv->sv_tmpcnt--;
- for (dr = svc_deferred_dequeue(xprt); dr;
- dr = svc_deferred_dequeue(xprt)) {
- svc_xprt_put(xprt);
+ while ((dr = svc_deferred_dequeue(xprt)) != NULL)
kfree(dr);
- }
svc_xprt_put(xprt);
spin_unlock_bh(&serv->sv_lock);
#include <linux/kernel.h>
#define RPCDBG_FACILITY RPCDBG_AUTH
+#include <linux/sunrpc/clnt.h>
/*
* AUTHUNIX and AUTHNULL credentials are both handled here.
* for scratch: */
char *buf = mesg;
int len;
- int b1, b2, b3, b4, b5, b6, b7, b8;
- char c;
char class[8];
- struct in6_addr addr;
+ union {
+ struct sockaddr sa;
+ struct sockaddr_in s4;
+ struct sockaddr_in6 s6;
+ } address;
+ struct sockaddr_in6 sin6;
int err;
struct ip_map *ipmp;
len = qword_get(&mesg, buf, mlen);
if (len <= 0) return -EINVAL;
- if (sscanf(buf, "%u.%u.%u.%u%c", &b1, &b2, &b3, &b4, &c) == 4) {
- addr.s6_addr32[0] = 0;
- addr.s6_addr32[1] = 0;
- addr.s6_addr32[2] = htonl(0xffff);
- addr.s6_addr32[3] =
- htonl((((((b1<<8)|b2)<<8)|b3)<<8)|b4);
- } else if (sscanf(buf, "%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x%c",
- &b1, &b2, &b3, &b4, &b5, &b6, &b7, &b8, &c) == 8) {
- addr.s6_addr16[0] = htons(b1);
- addr.s6_addr16[1] = htons(b2);
- addr.s6_addr16[2] = htons(b3);
- addr.s6_addr16[3] = htons(b4);
- addr.s6_addr16[4] = htons(b5);
- addr.s6_addr16[5] = htons(b6);
- addr.s6_addr16[6] = htons(b7);
- addr.s6_addr16[7] = htons(b8);
- } else
+ if (rpc_pton(buf, len, &address.sa, sizeof(address)) == 0)
return -EINVAL;
+ switch (address.sa.sa_family) {
+ case AF_INET:
+ /* Form a mapped IPv4 address in sin6 */
+ memset(&sin6, 0, sizeof(sin6));
+ sin6.sin6_family = AF_INET6;
+ sin6.sin6_addr.s6_addr32[2] = htonl(0xffff);
+ sin6.sin6_addr.s6_addr32[3] = address.s4.sin_addr.s_addr;
+ break;
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+ case AF_INET6:
+ memcpy(&sin6, &address.s6, sizeof(sin6));
+ break;
+#endif
+ default:
+ return -EINVAL;
+ }
expiry = get_expiry(&mesg);
if (expiry ==0)
} else
dom = NULL;
- ipmp = ip_map_lookup(class, &addr);
+ /* IPv6 scope IDs are ignored for now */
+ ipmp = ip_map_lookup(class, &sin6.sin6_addr);
if (ipmp) {
err = ip_map_update(ipmp,
container_of(dom, struct unix_domain, h),
else
glen = 0;
- seq_printf(m, "%d %d:", ug->uid, glen);
+ seq_printf(m, "%u %d:", ug->uid, glen);
for (i = 0; i < glen; i++)
seq_printf(m, " %d", GROUP_AT(ug->gi, i));
seq_printf(m, "\n");
return len;
err_delete:
set_bit(XPT_CLOSE, &svsk->sk_xprt.xpt_flags);
+ svc_xprt_received(&svsk->sk_xprt);
err_again:
return -EAGAIN;
}
if (!so)
return err;
- if (so->sk->sk_family != AF_INET)
+ if ((so->sk->sk_family != PF_INET) && (so->sk->sk_family != PF_INET6))
err = -EAFNOSUPPORT;
else if (so->sk->sk_protocol != IPPROTO_TCP &&
so->sk->sk_protocol != IPPROTO_UDP)
git.samba.org / sfrench / cifs-2.6.git / commitdiff