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NFS: Use cached page as buffer for NFS symlink requests

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Now that we have a copy of the symlink path in the page cache, we can pass
a struct page down to the XDR routines instead of a string buffer.

Test plan:
Connectathon, all NFS versions.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Chuck Lever
2006-08-22 20:06:23 -04:00
committed by Trond Myklebust
parent 873101b337
commit 94a6d75320
8 changed files with 59 additions and 42 deletions
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12
fs/nfs/nfs4proc.c
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@@ -2085,7 +2085,7 @@ static int nfs4_proc_link(struct inode *inode, struct inode *dir, struct qstr *n
}
static int _nfs4_proc_symlink(struct inode *dir, struct dentry *dentry,
struct qstr *path, struct iattr *sattr)
struct page *page, unsigned int len, struct iattr *sattr)
{
struct nfs_server *server = NFS_SERVER(dir);
struct nfs_fh fhandle;
@@ -2111,10 +2111,11 @@ static int _nfs4_proc_symlink(struct inode *dir, struct dentry *dentry,
};
int status;
if (path->len > NFS4_MAXPATHLEN)
if (len > NFS4_MAXPATHLEN)
return -ENAMETOOLONG;
arg.u.symlink = path;
arg.u.symlink.pages = &page;
arg.u.symlink.len = len;
nfs_fattr_init(&fattr);
nfs_fattr_init(&dir_fattr);
@@ -2128,13 +2129,14 @@ static int _nfs4_proc_symlink(struct inode *dir, struct dentry *dentry,
}
static int nfs4_proc_symlink(struct inode *dir, struct dentry *dentry,
struct qstr *path, struct iattr *sattr)
struct page *page, unsigned int len, struct iattr *sattr)
{
struct nfs4_exception exception = { };
int err;
do {
err = nfs4_handle_exception(NFS_SERVER(dir),
_nfs4_proc_symlink(dir, dentry, path, sattr),
_nfs4_proc_symlink(dir, dentry, page,
len, sattr),
&exception);
} while (exception.retry);
return err;