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-rw-r--r--fs/nfs/dir.c15
-rw-r--r--fs/nfs/internal.h9
-rw-r--r--fs/nfs/namespace.c2
-rw-r--r--fs/nfs/nfs3proc.c17
-rw-r--r--fs/nfs/nfs4_fs.h6
-rw-r--r--fs/nfs/nfs4namespace.c3
-rw-r--r--fs/nfs/nfs4proc.c28
-rw-r--r--fs/nfs/proc.c15
-rw-r--r--include/linux/nfs_xdr.h2
9 files changed, 66 insertions, 31 deletions
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 9405eeadc3f3..bfc66f3f00e1 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -1142,10 +1142,17 @@ nfs_lookup_revalidate_dentry(struct inode *dir, struct dentry *dentry,
if (fhandle == NULL || fattr == NULL || IS_ERR(label))
goto out;
- ret = NFS_PROTO(dir)->lookup(dir, &dentry->d_name, fhandle, fattr, label);
+ ret = NFS_PROTO(dir)->lookup(dir, dentry, fhandle, fattr, label);
if (ret < 0) {
- if (ret == -ESTALE || ret == -ENOENT)
+ switch (ret) {
+ case -ESTALE:
+ case -ENOENT:
ret = 0;
+ break;
+ case -ETIMEDOUT:
+ if (NFS_SERVER(inode)->flags & NFS_MOUNT_SOFTREVAL)
+ ret = 1;
+ }
goto out;
}
ret = 0;
@@ -1408,7 +1415,7 @@ struct dentry *nfs_lookup(struct inode *dir, struct dentry * dentry, unsigned in
goto out;
trace_nfs_lookup_enter(dir, dentry, flags);
- error = NFS_PROTO(dir)->lookup(dir, &dentry->d_name, fhandle, fattr, label);
+ error = NFS_PROTO(dir)->lookup(dir, dentry, fhandle, fattr, label);
if (error == -ENOENT)
goto no_entry;
if (error < 0) {
@@ -1683,7 +1690,7 @@ nfs_add_or_obtain(struct dentry *dentry, struct nfs_fh *fhandle,
d_drop(dentry);
if (fhandle->size == 0) {
- error = NFS_PROTO(dir)->lookup(dir, &dentry->d_name, fhandle, fattr, NULL);
+ error = NFS_PROTO(dir)->lookup(dir, dentry, fhandle, fattr, NULL);
if (error)
goto out_error;
}
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index 17f082442804..f80c47d5ff27 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -33,6 +33,15 @@ static inline int nfs_attr_use_mounted_on_fileid(struct nfs_fattr *fattr)
return 1;
}
+static inline bool nfs_lookup_is_soft_revalidate(const struct dentry *dentry)
+{
+ if (!(NFS_SB(dentry->d_sb)->flags & NFS_MOUNT_SOFTREVAL))
+ return false;
+ if (!d_is_positive(dentry) || !NFS_FH(d_inode(dentry))->size)
+ return false;
+ return true;
+}
+
/*
* Note: RFC 1813 doesn't limit the number of auth flavors that
* a server can return, so make something up.
diff --git a/fs/nfs/namespace.c b/fs/nfs/namespace.c
index 4fd22c0d730c..ad6077404947 100644
--- a/fs/nfs/namespace.c
+++ b/fs/nfs/namespace.c
@@ -301,7 +301,7 @@ int nfs_submount(struct fs_context *fc, struct nfs_server *server)
int err;
/* Look it up again to get its attributes */
- err = server->nfs_client->rpc_ops->lookup(d_inode(parent), &dentry->d_name,
+ err = server->nfs_client->rpc_ops->lookup(d_inode(parent), dentry,
ctx->mntfh, ctx->clone_data.fattr,
NULL);
dput(parent);
diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c
index 4c93a8bca7dc..a46d1d5d16d8 100644
--- a/fs/nfs/nfs3proc.c
+++ b/fs/nfs/nfs3proc.c
@@ -154,14 +154,14 @@ nfs3_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
}
static int
-nfs3_proc_lookup(struct inode *dir, const struct qstr *name,
+nfs3_proc_lookup(struct inode *dir, struct dentry *dentry,
struct nfs_fh *fhandle, struct nfs_fattr *fattr,
struct nfs4_label *label)
{
struct nfs3_diropargs arg = {
.fh = NFS_FH(dir),
- .name = name->name,
- .len = name->len
+ .name = dentry->d_name.name,
+ .len = dentry->d_name.len
};
struct nfs3_diropres res = {
.fh = fhandle,
@@ -173,20 +173,25 @@ nfs3_proc_lookup(struct inode *dir, const struct qstr *name,
.rpc_resp = &res,
};
int status;
+ unsigned short task_flags = 0;
+ /* Is this is an attribute revalidation, subject to softreval? */
+ if (nfs_lookup_is_soft_revalidate(dentry))
+ task_flags |= RPC_TASK_TIMEOUT;
+
+ dprintk("NFS call lookup %pd2\n", dentry);
res.dir_attr = nfs_alloc_fattr();
if (res.dir_attr == NULL)
return -ENOMEM;
- dprintk("NFS call lookup %s\n", name->name);
nfs_fattr_init(fattr);
- status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
+ status = rpc_call_sync(NFS_CLIENT(dir), &msg, task_flags);
nfs_refresh_inode(dir, res.dir_attr);
if (status >= 0 && !(fattr->valid & NFS_ATTR_FATTR)) {
msg.rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR];
msg.rpc_argp = fhandle;
msg.rpc_resp = fattr;
- status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
+ status = rpc_call_sync(NFS_CLIENT(dir), &msg, task_flags);
}
nfs_free_fattr(res.dir_attr);
dprintk("NFS reply lookup: %d\n", status);
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index 9c136d53987d..c3e669dcee0e 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -302,8 +302,10 @@ extern int nfs4_proc_fs_locations(struct rpc_clnt *, struct inode *, const struc
extern int nfs4_proc_get_locations(struct inode *, struct nfs4_fs_locations *,
struct page *page, const struct cred *);
extern int nfs4_proc_fsid_present(struct inode *, const struct cred *);
-extern struct rpc_clnt *nfs4_proc_lookup_mountpoint(struct inode *, const struct qstr *,
- struct nfs_fh *, struct nfs_fattr *);
+extern struct rpc_clnt *nfs4_proc_lookup_mountpoint(struct inode *,
+ struct dentry *,
+ struct nfs_fh *,
+ struct nfs_fattr *);
extern int nfs4_proc_secinfo(struct inode *, const struct qstr *, struct nfs4_secinfo_flavors *);
extern const struct xattr_handler *nfs4_xattr_handlers[];
extern int nfs4_set_rw_stateid(nfs4_stateid *stateid,
diff --git a/fs/nfs/nfs4namespace.c b/fs/nfs/nfs4namespace.c
index de6875a9b391..3ea1c1008b5b 100644
--- a/fs/nfs/nfs4namespace.c
+++ b/fs/nfs/nfs4namespace.c
@@ -442,12 +442,11 @@ int nfs4_submount(struct fs_context *fc, struct nfs_server *server)
struct dentry *dentry = ctx->clone_data.dentry;
struct dentry *parent = dget_parent(dentry);
struct inode *dir = d_inode(parent);
- const struct qstr *name = &dentry->d_name;
struct rpc_clnt *client;
int ret;
/* Look it up again to get its attributes and sec flavor */
- client = nfs4_proc_lookup_mountpoint(dir, name, ctx->mntfh,
+ client = nfs4_proc_lookup_mountpoint(dir, dentry, ctx->mntfh,
ctx->clone_data.fattr);
dput(parent);
if (IS_ERR(client))
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index e178e2e7ad80..df38db2eee3b 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -4177,7 +4177,7 @@ nfs4_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
}
static int _nfs4_proc_lookup(struct rpc_clnt *clnt, struct inode *dir,
- const struct qstr *name, struct nfs_fh *fhandle,
+ struct dentry *dentry, struct nfs_fh *fhandle,
struct nfs_fattr *fattr, struct nfs4_label *label)
{
struct nfs_server *server = NFS_SERVER(dir);
@@ -4185,7 +4185,7 @@ static int _nfs4_proc_lookup(struct rpc_clnt *clnt, struct inode *dir,
struct nfs4_lookup_arg args = {
.bitmask = server->attr_bitmask,
.dir_fh = NFS_FH(dir),
- .name = name,
+ .name = &dentry->d_name,
};
struct nfs4_lookup_res res = {
.server = server,
@@ -4198,13 +4198,20 @@ static int _nfs4_proc_lookup(struct rpc_clnt *clnt, struct inode *dir,
.rpc_argp = &args,
.rpc_resp = &res,
};
+ unsigned short task_flags = 0;
+
+ /* Is this is an attribute revalidation, subject to softreval? */
+ if (nfs_lookup_is_soft_revalidate(dentry))
+ task_flags |= RPC_TASK_TIMEOUT;
args.bitmask = nfs4_bitmask(server, label);
nfs_fattr_init(fattr);
- dprintk("NFS call lookup %s\n", name->name);
- status = nfs4_call_sync(clnt, server, &msg, &args.seq_args, &res.seq_res, 0);
+ dprintk("NFS call lookup %pd2\n", dentry);
+ nfs4_init_sequence(&args.seq_args, &res.seq_res, 0, 0);
+ status = nfs4_do_call_sync(clnt, server, &msg,
+ &args.seq_args, &res.seq_res, task_flags);
dprintk("NFS reply lookup: %d\n", status);
return status;
}
@@ -4218,16 +4225,17 @@ static void nfs_fixup_secinfo_attributes(struct nfs_fattr *fattr)
}
static int nfs4_proc_lookup_common(struct rpc_clnt **clnt, struct inode *dir,
- const struct qstr *name, struct nfs_fh *fhandle,
+ struct dentry *dentry, struct nfs_fh *fhandle,
struct nfs_fattr *fattr, struct nfs4_label *label)
{
struct nfs4_exception exception = {
.interruptible = true,
};
struct rpc_clnt *client = *clnt;
+ const struct qstr *name = &dentry->d_name;
int err;
do {
- err = _nfs4_proc_lookup(client, dir, name, fhandle, fattr, label);
+ err = _nfs4_proc_lookup(client, dir, dentry, fhandle, fattr, label);
trace_nfs4_lookup(dir, name, err);
switch (err) {
case -NFS4ERR_BADNAME:
@@ -4262,14 +4270,14 @@ out:
return err;
}
-static int nfs4_proc_lookup(struct inode *dir, const struct qstr *name,
+static int nfs4_proc_lookup(struct inode *dir, struct dentry *dentry,
struct nfs_fh *fhandle, struct nfs_fattr *fattr,
struct nfs4_label *label)
{
int status;
struct rpc_clnt *client = NFS_CLIENT(dir);
- status = nfs4_proc_lookup_common(&client, dir, name, fhandle, fattr, label);
+ status = nfs4_proc_lookup_common(&client, dir, dentry, fhandle, fattr, label);
if (client != NFS_CLIENT(dir)) {
rpc_shutdown_client(client);
nfs_fixup_secinfo_attributes(fattr);
@@ -4278,13 +4286,13 @@ static int nfs4_proc_lookup(struct inode *dir, const struct qstr *name,
}
struct rpc_clnt *
-nfs4_proc_lookup_mountpoint(struct inode *dir, const struct qstr *name,
+nfs4_proc_lookup_mountpoint(struct inode *dir, struct dentry *dentry,
struct nfs_fh *fhandle, struct nfs_fattr *fattr)
{
struct rpc_clnt *client = NFS_CLIENT(dir);
int status;
- status = nfs4_proc_lookup_common(&client, dir, name, fhandle, fattr, NULL);
+ status = nfs4_proc_lookup_common(&client, dir, dentry, fhandle, fattr, NULL);
if (status < 0)
return ERR_PTR(status);
return (client == NFS_CLIENT(dir)) ? rpc_clone_client(client) : client;
diff --git a/fs/nfs/proc.c b/fs/nfs/proc.c
index 0451a094e89e..15c865cc837f 100644
--- a/fs/nfs/proc.c
+++ b/fs/nfs/proc.c
@@ -152,14 +152,14 @@ nfs_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
}
static int
-nfs_proc_lookup(struct inode *dir, const struct qstr *name,
+nfs_proc_lookup(struct inode *dir, struct dentry *dentry,
struct nfs_fh *fhandle, struct nfs_fattr *fattr,
struct nfs4_label *label)
{
struct nfs_diropargs arg = {
.fh = NFS_FH(dir),
- .name = name->name,
- .len = name->len
+ .name = dentry->d_name.name,
+ .len = dentry->d_name.len
};
struct nfs_diropok res = {
.fh = fhandle,
@@ -171,10 +171,15 @@ nfs_proc_lookup(struct inode *dir, const struct qstr *name,
.rpc_resp = &res,
};
int status;
+ unsigned short task_flags = 0;
- dprintk("NFS call lookup %s\n", name->name);
+ /* Is this is an attribute revalidation, subject to softreval? */
+ if (nfs_lookup_is_soft_revalidate(dentry))
+ task_flags |= RPC_TASK_TIMEOUT;
+
+ dprintk("NFS call lookup %pd2\n", dentry);
nfs_fattr_init(fattr);
- status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
+ status = rpc_call_sync(NFS_CLIENT(dir), &msg, task_flags);
dprintk("NFS reply lookup: %d\n", status);
return status;
}
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 0a36c6f62b58..94c77ed55ce1 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -1661,7 +1661,7 @@ struct nfs_rpc_ops {
struct inode *);
int (*setattr) (struct dentry *, struct nfs_fattr *,
struct iattr *);
- int (*lookup) (struct inode *, const struct qstr *,
+ int (*lookup) (struct inode *, struct dentry *,
struct nfs_fh *, struct nfs_fattr *,
struct nfs4_label *);
int (*lookupp) (struct inode *, struct nfs_fh *,
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.