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-rw-r--r--fs/nfs/dir.c23
-rw-r--r--fs/nfs/nfs3proc.c35
-rw-r--r--fs/nfs/nfs4proc.c36
-rw-r--r--fs/nfs/proc.c18
-rw-r--r--include/linux/nfs_xdr.h17
5 files changed, 76 insertions, 53 deletions
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index b226f6f3ae96..3ee0668a9719 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -469,8 +469,20 @@ static int nfs_readdir_xdr_filler(struct nfs_readdir_descriptor *desc,
u64 cookie, struct page **pages,
size_t bufsize)
{
- struct file *file = desc->file;
- struct inode *inode = file_inode(file);
+ struct inode *inode = file_inode(desc->file);
+ __be32 verf_res[2];
+ struct nfs_readdir_arg arg = {
+ .dentry = file_dentry(desc->file),
+ .cred = desc->file->f_cred,
+ .verf = NFS_I(inode)->cookieverf,
+ .cookie = cookie,
+ .pages = pages,
+ .page_len = bufsize,
+ .plus = desc->plus,
+ };
+ struct nfs_readdir_res res = {
+ .verf = verf_res,
+ };
unsigned long timestamp, gencount;
int error;
@@ -478,20 +490,21 @@ static int nfs_readdir_xdr_filler(struct nfs_readdir_descriptor *desc,
timestamp = jiffies;
gencount = nfs_inc_attr_generation_counter();
desc->dir_verifier = nfs_save_change_attribute(inode);
- error = NFS_PROTO(inode)->readdir(file_dentry(file), file->f_cred,
- cookie, pages, bufsize, desc->plus);
+ error = NFS_PROTO(inode)->readdir(&arg, &res);
if (error < 0) {
/* We requested READDIRPLUS, but the server doesn't grok it */
if (error == -ENOTSUPP && desc->plus) {
NFS_SERVER(inode)->caps &= ~NFS_CAP_READDIRPLUS;
clear_bit(NFS_INO_ADVISE_RDPLUS, &NFS_I(inode)->flags);
- desc->plus = false;
+ desc->plus = arg.plus = false;
goto again;
}
goto error;
}
desc->timestamp = timestamp;
desc->gencount = gencount;
+ memcpy(NFS_I(inode)->cookieverf, res.verf,
+ sizeof(NFS_I(inode)->cookieverf));
error:
return error;
}
diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c
index 6b66b73a50eb..5c4e23abc345 100644
--- a/fs/nfs/nfs3proc.c
+++ b/fs/nfs/nfs3proc.c
@@ -662,37 +662,36 @@ out:
* Also note that this implementation handles both plain readdir and
* readdirplus.
*/
-static int
-nfs3_proc_readdir(struct dentry *dentry, const struct cred *cred,
- u64 cookie, struct page **pages, unsigned int count, bool plus)
+static int nfs3_proc_readdir(struct nfs_readdir_arg *nr_arg,
+ struct nfs_readdir_res *nr_res)
{
- struct inode *dir = d_inode(dentry);
- __be32 *verf = NFS_I(dir)->cookieverf;
+ struct inode *dir = d_inode(nr_arg->dentry);
struct nfs3_readdirargs arg = {
.fh = NFS_FH(dir),
- .cookie = cookie,
- .verf = {verf[0], verf[1]},
- .plus = plus,
- .count = count,
- .pages = pages
+ .cookie = nr_arg->cookie,
+ .plus = nr_arg->plus,
+ .count = nr_arg->page_len,
+ .pages = nr_arg->pages
};
struct nfs3_readdirres res = {
- .verf = verf,
- .plus = plus
+ .verf = nr_res->verf,
+ .plus = nr_arg->plus,
};
struct rpc_message msg = {
.rpc_proc = &nfs3_procedures[NFS3PROC_READDIR],
.rpc_argp = &arg,
.rpc_resp = &res,
- .rpc_cred = cred,
+ .rpc_cred = nr_arg->cred,
};
int status = -ENOMEM;
- if (plus)
+ if (nr_arg->plus)
msg.rpc_proc = &nfs3_procedures[NFS3PROC_READDIRPLUS];
+ if (arg.cookie)
+ memcpy(arg.verf, nr_arg->verf, sizeof(arg.verf));
- dprintk("NFS call readdir%s %d\n",
- plus? "plus" : "", (unsigned int) cookie);
+ dprintk("NFS call readdir%s %llu\n", nr_arg->plus ? "plus" : "",
+ (unsigned long long)nr_arg->cookie);
res.dir_attr = nfs_alloc_fattr();
if (res.dir_attr == NULL)
@@ -705,8 +704,8 @@ nfs3_proc_readdir(struct dentry *dentry, const struct cred *cred,
nfs_free_fattr(res.dir_attr);
out:
- dprintk("NFS reply readdir%s: %d\n",
- plus? "plus" : "", status);
+ dprintk("NFS reply readdir%s: %d\n", nr_arg->plus ? "plus" : "",
+ status);
return status;
}
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 66f1f4a5c74c..adcaba68eaed 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -4961,41 +4961,40 @@ static int nfs4_proc_mkdir(struct inode *dir, struct dentry *dentry,
return err;
}
-static int _nfs4_proc_readdir(struct dentry *dentry, const struct cred *cred,
- u64 cookie, struct page **pages, unsigned int count, bool plus)
+static int _nfs4_proc_readdir(struct nfs_readdir_arg *nr_arg,
+ struct nfs_readdir_res *nr_res)
{
- struct inode *dir = d_inode(dentry);
+ struct inode *dir = d_inode(nr_arg->dentry);
struct nfs_server *server = NFS_SERVER(dir);
struct nfs4_readdir_arg args = {
.fh = NFS_FH(dir),
- .pages = pages,
+ .pages = nr_arg->pages,
.pgbase = 0,
- .count = count,
- .plus = plus,
+ .count = nr_arg->page_len,
+ .plus = nr_arg->plus,
};
struct nfs4_readdir_res res;
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_READDIR],
.rpc_argp = &args,
.rpc_resp = &res,
- .rpc_cred = cred,
+ .rpc_cred = nr_arg->cred,
};
int status;
- dprintk("%s: dentry = %pd2, cookie = %Lu\n", __func__,
- dentry,
- (unsigned long long)cookie);
+ dprintk("%s: dentry = %pd2, cookie = %llu\n", __func__,
+ nr_arg->dentry, (unsigned long long)nr_arg->cookie);
if (!(server->caps & NFS_CAP_SECURITY_LABEL))
args.bitmask = server->attr_bitmask_nl;
else
args.bitmask = server->attr_bitmask;
- nfs4_setup_readdir(cookie, NFS_I(dir)->cookieverf, dentry, &args);
+ nfs4_setup_readdir(nr_arg->cookie, nr_arg->verf, nr_arg->dentry, &args);
res.pgbase = args.pgbase;
status = nfs4_call_sync(server->client, server, &msg, &args.seq_args,
&res.seq_res, 0);
if (status >= 0) {
- memcpy(NFS_I(dir)->cookieverf, res.verifier.data, NFS4_VERIFIER_SIZE);
+ memcpy(nr_res->verf, res.verifier.data, NFS4_VERIFIER_SIZE);
status += args.pgbase;
}
@@ -5005,19 +5004,18 @@ static int _nfs4_proc_readdir(struct dentry *dentry, const struct cred *cred,
return status;
}
-static int nfs4_proc_readdir(struct dentry *dentry, const struct cred *cred,
- u64 cookie, struct page **pages, unsigned int count, bool plus)
+static int nfs4_proc_readdir(struct nfs_readdir_arg *arg,
+ struct nfs_readdir_res *res)
{
struct nfs4_exception exception = {
.interruptible = true,
};
int err;
do {
- err = _nfs4_proc_readdir(dentry, cred, cookie,
- pages, count, plus);
- trace_nfs4_readdir(d_inode(dentry), err);
- err = nfs4_handle_exception(NFS_SERVER(d_inode(dentry)), err,
- &exception);
+ err = _nfs4_proc_readdir(arg, res);
+ trace_nfs4_readdir(d_inode(arg->dentry), err);
+ err = nfs4_handle_exception(NFS_SERVER(d_inode(arg->dentry)),
+ err, &exception);
} while (exception.retry);
return err;
}
diff --git a/fs/nfs/proc.c b/fs/nfs/proc.c
index 15c865cc837f..73ab7c59d3a7 100644
--- a/fs/nfs/proc.c
+++ b/fs/nfs/proc.c
@@ -499,26 +499,26 @@ nfs_proc_rmdir(struct inode *dir, const struct qstr *name)
* sure it is syntactically correct; the entries itself are decoded
* from nfs_readdir by calling the decode_entry function directly.
*/
-static int
-nfs_proc_readdir(struct dentry *dentry, const struct cred *cred,
- u64 cookie, struct page **pages, unsigned int count, bool plus)
+static int nfs_proc_readdir(struct nfs_readdir_arg *nr_arg,
+ struct nfs_readdir_res *nr_res)
{
- struct inode *dir = d_inode(dentry);
+ struct inode *dir = d_inode(nr_arg->dentry);
struct nfs_readdirargs arg = {
.fh = NFS_FH(dir),
- .cookie = cookie,
- .count = count,
- .pages = pages,
+ .cookie = nr_arg->cookie,
+ .count = nr_arg->page_len,
+ .pages = nr_arg->pages,
};
struct rpc_message msg = {
.rpc_proc = &nfs_procedures[NFSPROC_READDIR],
.rpc_argp = &arg,
- .rpc_cred = cred,
+ .rpc_cred = nr_arg->cred,
};
int status;
- dprintk("NFS call readdir %d\n", (unsigned int)cookie);
+ dprintk("NFS call readdir %llu\n", (unsigned long long)nr_arg->cookie);
status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
+ nr_res->verf[0] = nr_res->verf[1] = 0;
nfs_invalidate_atime(dir);
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index d63cb862d58e..3327239fa2f9 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -750,6 +750,20 @@ struct nfs_entry {
struct nfs_server * server;
};
+struct nfs_readdir_arg {
+ struct dentry *dentry;
+ const struct cred *cred;
+ __be32 *verf;
+ u64 cookie;
+ struct page **pages;
+ unsigned int page_len;
+ bool plus;
+};
+
+struct nfs_readdir_res {
+ __be32 *verf;
+};
+
/*
* The following types are for NFSv2 only.
*/
@@ -1744,8 +1758,7 @@ struct nfs_rpc_ops {
unsigned int, struct iattr *);
int (*mkdir) (struct inode *, struct dentry *, struct iattr *);
int (*rmdir) (struct inode *, const struct qstr *);
- int (*readdir) (struct dentry *, const struct cred *,
- u64, struct page **, unsigned int, bool);
+ int (*readdir) (struct nfs_readdir_arg *, struct nfs_readdir_res *);
int (*mknod) (struct inode *, struct dentry *, struct iattr *,
dev_t);
int (*statfs) (struct nfs_server *, struct nfs_fh *,
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.