#include <linux/unistd.h>
#include <linux/sunrpc/clnt.h>
#include <linux/sunrpc/stats.h>
+#include <linux/sunrpc/metrics.h>
#include <linux/nfs_fs.h>
#include <linux/nfs_mount.h>
#include <linux/nfs4_mount.h>
#include "nfs4_fs.h"
#include "callback.h"
#include "delegation.h"
+#include "iostat.h"
#define NFSDBG_FACILITY NFSDBG_VFS
#define NFS_PARANOIA 1
static void nfs_delete_inode(struct inode *);
static void nfs_clear_inode(struct inode *);
static void nfs_umount_begin(struct super_block *);
-static int nfs_statfs(struct super_block *, struct kstatfs *);
+static int nfs_statfs(struct dentry *, struct kstatfs *);
static int nfs_show_options(struct seq_file *, struct vfsmount *);
+static int nfs_show_stats(struct seq_file *, struct vfsmount *);
static void nfs_zap_acl_cache(struct inode *);
static struct rpc_program nfs_program;
.clear_inode = nfs_clear_inode,
.umount_begin = nfs_umount_begin,
.show_options = nfs_show_options,
+ .show_stats = nfs_show_stats,
};
/*
static struct rpc_program nfs_program = {
.name = "nfs",
.number = NFS_PROGRAM,
- .nrvers = sizeof(nfs_version) / sizeof(nfs_version[0]),
+ .nrvers = ARRAY_SIZE(nfs_version),
.version = nfs_version,
.stats = &nfs_rpcstat,
.pipe_dir_name = "/nfs",
struct rpc_program nfsacl_program = {
.name = "nfsacl",
.number = NFS_ACL_PROGRAM,
- .nrvers = sizeof(nfsacl_version) / sizeof(nfsacl_version[0]),
+ .nrvers = ARRAY_SIZE(nfsacl_version),
.version = nfsacl_version,
.stats = &nfsacl_rpcstat,
};
static int
nfs_write_inode(struct inode *inode, int sync)
{
- int flags = sync ? FLUSH_WAIT : 0;
+ int flags = sync ? FLUSH_SYNC : 0;
int ret;
ret = nfs_commit_inode(inode, flags);
nfs_get_root(struct super_block *sb, struct nfs_fh *rootfh, struct nfs_fsinfo *fsinfo)
{
struct nfs_server *server = NFS_SB(sb);
- struct inode *rooti;
int error;
error = server->rpc_ops->getroot(server, rootfh, fsinfo);
return ERR_PTR(error);
}
- rooti = nfs_fhget(sb, rootfh, fsinfo->fattr);
- if (!rooti)
- return ERR_PTR(-ENOMEM);
- return rooti;
+ return nfs_fhget(sb, rootfh, fsinfo->fattr);
}
/*
sb->s_magic = NFS_SUPER_MAGIC;
+ server->io_stats = nfs_alloc_iostats();
+ if (server->io_stats == NULL)
+ return -ENOMEM;
+
root_inode = nfs_get_root(sb, &server->fh, &fsinfo);
/* Did getting the root inode fail? */
if (IS_ERR(root_inode)) {
}
sb->s_root->d_op = server->rpc_ops->dentry_ops;
+ /* mount time stamp, in seconds */
+ server->mount_time = jiffies;
+
/* Get some general file system info */
if (server->namelen == 0 &&
server->rpc_ops->pathconf(server, &server->fh, &pathinfo) >= 0)
nfs_init_timeout_values(&timeparms, proto, data->timeo, data->retrans);
+ server->retrans_timeo = timeparms.to_initval;
+ server->retrans_count = timeparms.to_retries;
+
/* create transport and client */
xprt = xprt_create_proto(proto, &server->addr, &timeparms);
if (IS_ERR(xprt)) {
}
static int
-nfs_statfs(struct super_block *sb, struct kstatfs *buf)
+nfs_statfs(struct dentry *dentry, struct kstatfs *buf)
{
+ struct super_block *sb = dentry->d_sb;
struct nfs_server *server = NFS_SB(sb);
unsigned char blockbits;
unsigned long blockres;
}
-static int nfs_show_options(struct seq_file *m, struct vfsmount *mnt)
+static void nfs_show_mount_options(struct seq_file *m, struct nfs_server *nfss, int showdefaults)
{
static struct proc_nfs_info {
int flag;
} nfs_info[] = {
{ NFS_MOUNT_SOFT, ",soft", ",hard" },
{ NFS_MOUNT_INTR, ",intr", "" },
- { NFS_MOUNT_POSIX, ",posix", "" },
{ NFS_MOUNT_NOCTO, ",nocto", "" },
{ NFS_MOUNT_NOAC, ",noac", "" },
- { NFS_MOUNT_NONLM, ",nolock", ",lock" },
+ { NFS_MOUNT_NONLM, ",nolock", "" },
{ NFS_MOUNT_NOACL, ",noacl", "" },
{ 0, NULL, NULL }
};
struct proc_nfs_info *nfs_infop;
- struct nfs_server *nfss = NFS_SB(mnt->mnt_sb);
char buf[12];
char *proto;
- seq_printf(m, ",v%d", nfss->rpc_ops->version);
+ seq_printf(m, ",vers=%d", nfss->rpc_ops->version);
seq_printf(m, ",rsize=%d", nfss->rsize);
seq_printf(m, ",wsize=%d", nfss->wsize);
- if (nfss->acregmin != 3*HZ)
+ if (nfss->acregmin != 3*HZ || showdefaults)
seq_printf(m, ",acregmin=%d", nfss->acregmin/HZ);
- if (nfss->acregmax != 60*HZ)
+ if (nfss->acregmax != 60*HZ || showdefaults)
seq_printf(m, ",acregmax=%d", nfss->acregmax/HZ);
- if (nfss->acdirmin != 30*HZ)
+ if (nfss->acdirmin != 30*HZ || showdefaults)
seq_printf(m, ",acdirmin=%d", nfss->acdirmin/HZ);
- if (nfss->acdirmax != 60*HZ)
+ if (nfss->acdirmax != 60*HZ || showdefaults)
seq_printf(m, ",acdirmax=%d", nfss->acdirmax/HZ);
for (nfs_infop = nfs_info; nfs_infop->flag; nfs_infop++) {
if (nfss->flags & nfs_infop->flag)
proto = buf;
}
seq_printf(m, ",proto=%s", proto);
+ seq_printf(m, ",timeo=%lu", 10U * nfss->retrans_timeo / HZ);
+ seq_printf(m, ",retrans=%u", nfss->retrans_count);
+}
+
+static int nfs_show_options(struct seq_file *m, struct vfsmount *mnt)
+{
+ struct nfs_server *nfss = NFS_SB(mnt->mnt_sb);
+
+ nfs_show_mount_options(m, nfss, 0);
+
seq_puts(m, ",addr=");
seq_escape(m, nfss->hostname, " \t\n\\");
+
+ return 0;
+}
+
+static int nfs_show_stats(struct seq_file *m, struct vfsmount *mnt)
+{
+ int i, cpu;
+ struct nfs_server *nfss = NFS_SB(mnt->mnt_sb);
+ struct rpc_auth *auth = nfss->client->cl_auth;
+ struct nfs_iostats totals = { };
+
+ seq_printf(m, "statvers=%s", NFS_IOSTAT_VERS);
+
+ /*
+ * Display all mount option settings
+ */
+ seq_printf(m, "\n\topts:\t");
+ seq_puts(m, mnt->mnt_sb->s_flags & MS_RDONLY ? "ro" : "rw");
+ seq_puts(m, mnt->mnt_sb->s_flags & MS_SYNCHRONOUS ? ",sync" : "");
+ seq_puts(m, mnt->mnt_sb->s_flags & MS_NOATIME ? ",noatime" : "");
+ seq_puts(m, mnt->mnt_sb->s_flags & MS_NODIRATIME ? ",nodiratime" : "");
+ nfs_show_mount_options(m, nfss, 1);
+
+ seq_printf(m, "\n\tage:\t%lu", (jiffies - nfss->mount_time) / HZ);
+
+ seq_printf(m, "\n\tcaps:\t");
+ seq_printf(m, "caps=0x%x", nfss->caps);
+ seq_printf(m, ",wtmult=%d", nfss->wtmult);
+ seq_printf(m, ",dtsize=%d", nfss->dtsize);
+ seq_printf(m, ",bsize=%d", nfss->bsize);
+ seq_printf(m, ",namelen=%d", nfss->namelen);
+
+#ifdef CONFIG_NFS_V4
+ if (nfss->rpc_ops->version == 4) {
+ seq_printf(m, "\n\tnfsv4:\t");
+ seq_printf(m, "bm0=0x%x", nfss->attr_bitmask[0]);
+ seq_printf(m, ",bm1=0x%x", nfss->attr_bitmask[1]);
+ seq_printf(m, ",acl=0x%x", nfss->acl_bitmask);
+ }
+#endif
+
+ /*
+ * Display security flavor in effect for this mount
+ */
+ seq_printf(m, "\n\tsec:\tflavor=%d", auth->au_ops->au_flavor);
+ if (auth->au_flavor)
+ seq_printf(m, ",pseudoflavor=%d", auth->au_flavor);
+
+ /*
+ * Display superblock I/O counters
+ */
+ for_each_possible_cpu(cpu) {
+ struct nfs_iostats *stats;
+
+ preempt_disable();
+ stats = per_cpu_ptr(nfss->io_stats, cpu);
+
+ for (i = 0; i < __NFSIOS_COUNTSMAX; i++)
+ totals.events[i] += stats->events[i];
+ for (i = 0; i < __NFSIOS_BYTESMAX; i++)
+ totals.bytes[i] += stats->bytes[i];
+
+ preempt_enable();
+ }
+
+ seq_printf(m, "\n\tevents:\t");
+ for (i = 0; i < __NFSIOS_COUNTSMAX; i++)
+ seq_printf(m, "%lu ", totals.events[i]);
+ seq_printf(m, "\n\tbytes:\t");
+ for (i = 0; i < __NFSIOS_BYTESMAX; i++)
+ seq_printf(m, "%Lu ", totals.bytes[i]);
+ seq_printf(m, "\n");
+
+ rpc_print_iostats(m, nfss->client);
+
return 0;
}
struct nfs_inode *nfsi = NFS_I(inode);
int mode = inode->i_mode;
+ nfs_inc_stats(inode, NFSIOS_ATTRINVALIDATE);
+
NFS_ATTRTIMEO(inode) = NFS_MINATTRTIMEO(inode);
NFS_ATTRTIMEO_UPDATE(inode) = jiffies;
.fh = fh,
.fattr = fattr
};
- struct inode *inode = NULL;
+ struct inode *inode = ERR_PTR(-ENOENT);
unsigned long hash;
if ((fattr->valid & NFS_ATTR_FATTR) == 0)
hash = nfs_fattr_to_ino_t(fattr);
- if (!(inode = iget5_locked(sb, hash, nfs_find_actor, nfs_init_locked, &desc)))
+ inode = iget5_locked(sb, hash, nfs_find_actor, nfs_init_locked, &desc);
+ if (inode == NULL) {
+ inode = ERR_PTR(-ENOMEM);
goto out_no_inode;
+ }
if (inode->i_state & I_NEW) {
struct nfs_inode *nfsi = NFS_I(inode);
return inode;
out_no_inode:
- printk("nfs_fhget: iget failed\n");
+ dprintk("nfs_fhget: iget failed with error %ld\n", PTR_ERR(inode));
goto out;
}
struct nfs_fattr fattr;
int error;
+ nfs_inc_stats(inode, NFSIOS_VFSSETATTR);
+
if (attr->ia_valid & ATTR_SIZE) {
if (!S_ISREG(inode->i_mode) || attr->ia_size == i_size_read(inode))
attr->ia_valid &= ~ATTR_SIZE;
spin_unlock(&inode->i_lock);
}
if ((attr->ia_valid & ATTR_SIZE) != 0) {
+ nfs_inc_stats(inode, NFSIOS_SETATTRTRUNC);
inode->i_size = attr->ia_size;
vmtruncate(inode, attr->ia_size);
}
int err;
/* Flush out writes to the server in order to update c/mtime */
- nfs_sync_inode(inode, 0, 0, FLUSH_WAIT|FLUSH_NOCOMMIT);
+ nfs_sync_inode_wait(inode, 0, 0, FLUSH_NOCOMMIT);
/*
* We may force a getattr if the user cares about atime.
*/
int nfs_revalidate_inode(struct nfs_server *server, struct inode *inode)
{
+ nfs_inc_stats(inode, NFSIOS_INODEREVALIDATE);
if (!(NFS_I(inode)->cache_validity & (NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA))
&& !nfs_attribute_timeout(inode))
return NFS_STALE(inode) ? -ESTALE : 0;
struct nfs_inode *nfsi = NFS_I(inode);
if (nfsi->cache_validity & NFS_INO_INVALID_DATA) {
+ nfs_inc_stats(inode, NFSIOS_DATAINVALIDATE);
if (S_ISREG(inode->i_mode))
nfs_sync_mapping(mapping);
invalidate_inode_pages2(mapping);
if ((fattr->valid & NFS_ATTR_FATTR) == 0)
return 0;
+ /* Has the inode gone and changed behind our back? */
+ if (nfsi->fileid != fattr->fileid
+ || (inode->i_mode & S_IFMT) != (fattr->mode & S_IFMT)) {
+ return -EIO;
+ }
+
/* Are we in the process of updating data on the server? */
data_unstable = nfs_caches_unstable(inode);
/* Do atomic weak cache consistency updates */
nfs_wcc_update_inode(inode, fattr);
- if ((fattr->valid & NFS_ATTR_FATTR_V4) != 0 &&
- nfsi->change_attr != fattr->change_attr) {
+ if ((fattr->valid & NFS_ATTR_FATTR_V4) != 0) {
+ if (nfsi->change_attr == fattr->change_attr)
+ goto out;
nfsi->cache_validity |= NFS_INO_INVALID_ATTR;
if (!data_unstable)
nfsi->cache_validity |= NFS_INO_REVAL_PAGECACHE;
}
- /* Has the inode gone and changed behind our back? */
- if (nfsi->fileid != fattr->fileid
- || (inode->i_mode & S_IFMT) != (fattr->mode & S_IFMT)) {
- return -EIO;
- }
-
- cur_size = i_size_read(inode);
- new_isize = nfs_size_to_loff_t(fattr->size);
-
/* Verify a few of the more important attributes */
if (!timespec_equal(&inode->i_mtime, &fattr->mtime)) {
nfsi->cache_validity |= NFS_INO_INVALID_ATTR;
if (!data_unstable)
nfsi->cache_validity |= NFS_INO_REVAL_PAGECACHE;
}
- if (cur_size != new_isize) {
- nfsi->cache_validity |= NFS_INO_INVALID_ATTR;
- if (nfsi->npages == 0)
- nfsi->cache_validity |= NFS_INO_REVAL_PAGECACHE;
- }
+
+ cur_size = i_size_read(inode);
+ new_isize = nfs_size_to_loff_t(fattr->size);
+ if (cur_size != new_isize && nfsi->npages == 0)
+ nfsi->cache_validity |= NFS_INO_INVALID_ATTR|NFS_INO_REVAL_PAGECACHE;
/* Have any file permissions changed? */
if ((inode->i_mode & S_IALLUGO) != (fattr->mode & S_IALLUGO)
if (inode->i_nlink != fattr->nlink)
nfsi->cache_validity |= NFS_INO_INVALID_ATTR;
+out:
if (!timespec_equal(&inode->i_atime, &fattr->atime))
nfsi->cache_validity |= NFS_INO_INVALID_ATIME;
nfsi->cache_change_attribute = jiffies;
}
- if ((fattr->valid & NFS_ATTR_FATTR_V4)
- && nfsi->change_attr != fattr->change_attr) {
- dprintk("NFS: change_attr change on server for file %s/%ld\n",
- inode->i_sb->s_id, inode->i_ino);
- nfsi->change_attr = fattr->change_attr;
- invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
- nfsi->cache_change_attribute = jiffies;
- }
-
/* If ctime has changed we should definitely clear access+acl caches */
if (!timespec_equal(&inode->i_ctime, &fattr->ctime)) {
invalid |= NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
inode->i_blksize = fattr->du.nfs2.blocksize;
}
+ if ((fattr->valid & NFS_ATTR_FATTR_V4)) {
+ if (nfsi->change_attr != fattr->change_attr) {
+ dprintk("NFS: change_attr change on server for file %s/%ld\n",
+ inode->i_sb->s_id, inode->i_ino);
+ nfsi->change_attr = fattr->change_attr;
+ invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
+ nfsi->cache_change_attribute = jiffies;
+ } else
+ invalid &= ~(NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA);
+ }
+
/* Update attrtimeo value if we're out of the unstable period */
if (invalid & NFS_INO_INVALID_ATTR) {
+ nfs_inc_stats(inode, NFSIOS_ATTRINVALIDATE);
nfsi->attrtimeo = NFS_MINATTRTIMEO(inode);
nfsi->attrtimeo_timestamp = jiffies;
} else if (time_after(jiffies, nfsi->attrtimeo_timestamp+nfsi->attrtimeo)) {
return !nfs_compare_fh(&old->fh, &server->fh);
}
-static struct super_block *nfs_get_sb(struct file_system_type *fs_type,
- int flags, const char *dev_name, void *raw_data)
+static int nfs_get_sb(struct file_system_type *fs_type,
+ int flags, const char *dev_name, void *raw_data, struct vfsmount *mnt)
{
int error;
struct nfs_server *server = NULL;
struct nfs_fh *root;
struct nfs_mount_data *data = raw_data;
- s = ERR_PTR(-EINVAL);
+ error = -EINVAL;
if (data == NULL) {
dprintk("%s: missing data argument\n", __FUNCTION__);
- goto out_err;
+ goto out_err_noserver;
}
if (data->version <= 0 || data->version > NFS_MOUNT_VERSION) {
dprintk("%s: bad mount version\n", __FUNCTION__);
- goto out_err;
+ goto out_err_noserver;
}
switch (data->version) {
case 1:
dprintk("%s: mount structure version %d does not support NFSv3\n",
__FUNCTION__,
data->version);
- goto out_err;
+ goto out_err_noserver;
}
data->root.size = NFS2_FHSIZE;
memcpy(data->root.data, data->old_root.data, NFS2_FHSIZE);
dprintk("%s: mount structure version %d does not support strong security\n",
__FUNCTION__,
data->version);
- goto out_err;
+ goto out_err_noserver;
}
case 5:
memset(data->context, 0, sizeof(data->context));
}
#ifndef CONFIG_NFS_V3
/* If NFSv3 is not compiled in, return -EPROTONOSUPPORT */
- s = ERR_PTR(-EPROTONOSUPPORT);
+ error = -EPROTONOSUPPORT;
if (data->flags & NFS_MOUNT_VER3) {
dprintk("%s: NFSv3 not compiled into kernel\n", __FUNCTION__);
- goto out_err;
+ goto out_err_noserver;
}
#endif /* CONFIG_NFS_V3 */
- s = ERR_PTR(-ENOMEM);
- server = kmalloc(sizeof(struct nfs_server), GFP_KERNEL);
+ error = -ENOMEM;
+ server = kzalloc(sizeof(struct nfs_server), GFP_KERNEL);
if (!server)
- goto out_err;
- memset(server, 0, sizeof(struct nfs_server));
+ goto out_err_noserver;
/* Zero out the NFS state stuff */
init_nfsv4_state(server);
server->client = server->client_sys = server->client_acl = ERR_PTR(-EINVAL);
root->size = data->root.size;
else
root->size = NFS2_FHSIZE;
- s = ERR_PTR(-EINVAL);
+ error = -EINVAL;
if (root->size > sizeof(root->data)) {
dprintk("%s: invalid root filehandle\n", __FUNCTION__);
goto out_err;
}
/* Fire up rpciod if not yet running */
- s = ERR_PTR(rpciod_up());
- if (IS_ERR(s)) {
- dprintk("%s: couldn't start rpciod! Error = %ld\n",
- __FUNCTION__, PTR_ERR(s));
+ error = rpciod_up();
+ if (error < 0) {
+ dprintk("%s: couldn't start rpciod! Error = %d\n",
+ __FUNCTION__, error);
goto out_err;
}
s = sget(fs_type, nfs_compare_super, nfs_set_super, server);
- if (IS_ERR(s) || s->s_root)
+ if (IS_ERR(s)) {
+ error = PTR_ERR(s);
+ goto out_err_rpciod;
+ }
+
+ if (s->s_root)
goto out_rpciod_down;
s->s_flags = flags;
- error = nfs_fill_super(s, data, flags & MS_VERBOSE ? 1 : 0);
+ error = nfs_fill_super(s, data, flags & MS_SILENT ? 1 : 0);
if (error) {
up_write(&s->s_umount);
deactivate_super(s);
- return ERR_PTR(error);
+ return error;
}
s->s_flags |= MS_ACTIVE;
- return s;
+ return simple_set_mnt(mnt, s);
+
out_rpciod_down:
rpciod_down();
+ kfree(server);
+ return simple_set_mnt(mnt, s);
+
+out_err_rpciod:
+ rpciod_down();
out_err:
kfree(server);
- return s;
+out_err_noserver:
+ return error;
}
static void nfs_kill_super(struct super_block *s)
rpciod_down(); /* release rpciod */
+ nfs_free_iostats(server->io_stats);
kfree(server->hostname);
kfree(server);
}
.clear_inode = nfs4_clear_inode,
.umount_begin = nfs_umount_begin,
.show_options = nfs_show_options,
+ .show_stats = nfs_show_stats,
};
/*
nfs_init_timeout_values(&timeparms, data->proto, data->timeo, data->retrans);
+ server->retrans_timeo = timeparms.to_initval;
+ server->retrans_count = timeparms.to_retries;
+
clp = nfs4_get_client(&server->addr.sin_addr);
if (!clp) {
dprintk("%s: failed to create NFS4 client.\n", __FUNCTION__);
return dst;
}
-static struct super_block *nfs4_get_sb(struct file_system_type *fs_type,
- int flags, const char *dev_name, void *raw_data)
+static int nfs4_get_sb(struct file_system_type *fs_type,
+ int flags, const char *dev_name, void *raw_data, struct vfsmount *mnt)
{
int error;
struct nfs_server *server;
if (data == NULL) {
dprintk("%s: missing data argument\n", __FUNCTION__);
- return ERR_PTR(-EINVAL);
+ return -EINVAL;
}
if (data->version <= 0 || data->version > NFS4_MOUNT_VERSION) {
dprintk("%s: bad mount version\n", __FUNCTION__);
- return ERR_PTR(-EINVAL);
+ return -EINVAL;
}
- server = kmalloc(sizeof(struct nfs_server), GFP_KERNEL);
+ server = kzalloc(sizeof(struct nfs_server), GFP_KERNEL);
if (!server)
- return ERR_PTR(-ENOMEM);
- memset(server, 0, sizeof(struct nfs_server));
+ return -ENOMEM;
/* Zero out the NFS state stuff */
init_nfsv4_state(server);
server->client = server->client_sys = server->client_acl = ERR_PTR(-EINVAL);
/* We now require that the mount process passes the remote address */
if (data->host_addrlen != sizeof(server->addr)) {
- s = ERR_PTR(-EINVAL);
+ error = -EINVAL;
goto out_free;
}
if (copy_from_user(&server->addr, data->host_addr, sizeof(server->addr))) {
- s = ERR_PTR(-EFAULT);
+ error = -EFAULT;
goto out_free;
}
if (server->addr.sin_family != AF_INET ||
server->addr.sin_addr.s_addr == INADDR_ANY) {
dprintk("%s: mount program didn't pass remote IP address!\n",
__FUNCTION__);
- s = ERR_PTR(-EINVAL);
+ error = -EINVAL;
goto out_free;
}
/* Fire up rpciod if not yet running */
- s = ERR_PTR(rpciod_up());
- if (IS_ERR(s)) {
- dprintk("%s: couldn't start rpciod! Error = %ld\n",
- __FUNCTION__, PTR_ERR(s));
+ error = rpciod_up();
+ if (error < 0) {
+ dprintk("%s: couldn't start rpciod! Error = %d\n",
+ __FUNCTION__, error);
goto out_free;
}
s = sget(fs_type, nfs4_compare_super, nfs_set_super, server);
-
- if (IS_ERR(s) || s->s_root)
+ if (IS_ERR(s)) {
+ error = PTR_ERR(s);
goto out_free;
+ }
+
+ if (s->s_root) {
+ kfree(server->mnt_path);
+ kfree(server->hostname);
+ kfree(server);
+ return simple_set_mnt(mnt, s);
+ }
s->s_flags = flags;
- error = nfs4_fill_super(s, data, flags & MS_VERBOSE ? 1 : 0);
+ error = nfs4_fill_super(s, data, flags & MS_SILENT ? 1 : 0);
if (error) {
up_write(&s->s_umount);
deactivate_super(s);
- return ERR_PTR(error);
+ return error;
}
s->s_flags |= MS_ACTIVE;
- return s;
+ return simple_set_mnt(mnt, s);
out_err:
- s = (struct super_block *)p;
+ error = PTR_ERR(p);
out_free:
kfree(server->mnt_path);
kfree(server->hostname);
kfree(server);
- return s;
+ return error;
}
static void nfs4_kill_super(struct super_block *sb)
if (server->client != NULL && !IS_ERR(server->client))
rpc_shutdown_client(server->client);
- rpciod_down(); /* release rpciod */
destroy_nfsv4_state(server);
+ rpciod_down();
+
+ nfs_free_iostats(server->io_stats);
kfree(server->hostname);
kfree(server);
}
{
nfs_inode_cachep = kmem_cache_create("nfs_inode_cache",
sizeof(struct nfs_inode),
- 0, SLAB_RECLAIM_ACCOUNT,
+ 0, (SLAB_RECLAIM_ACCOUNT|
+ SLAB_MEM_SPREAD),
init_once, NULL);
if (nfs_inode_cachep == NULL)
return -ENOMEM;
projects / linux-2.6 / blobdiff