NFS: Reduce stack footprint of nfs_readdir()
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c
index c252fc9..1c5bfb3 100644
--- a/fs/nfs/nfs3proc.c
+++ b/fs/nfs/nfs3proc.c
@@ -597,7 +597,6 @@
u64 cookie, struct page *page, unsigned int count, int plus)
{
struct inode *dir = dentry->d_inode;
- struct nfs_fattr dir_attr;
__be32 *verf = NFS_COOKIEVERF(dir);
struct nfs3_readdirargs arg = {
.fh = NFS_FH(dir),
@@ -608,7 +607,6 @@
.pages = &page
};
struct nfs3_readdirres res = {
- .dir_attr = &dir_attr,
.verf = verf,
.plus = plus
};
@@ -618,7 +616,7 @@
.rpc_resp = &res,
.rpc_cred = cred
};
- int status;
+ int status = -ENOMEM;
if (plus)
msg.rpc_proc = &nfs3_procedures[NFS3PROC_READDIRPLUS];
@@ -626,12 +624,17 @@
dprintk("NFS call readdir%s %d\n",
plus? "plus" : "", (unsigned int) cookie);
- nfs_fattr_init(&dir_attr);
+ res.dir_attr = nfs_alloc_fattr();
+ if (res.dir_attr == NULL)
+ goto out;
+
status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
nfs_invalidate_atime(dir);
+ nfs_refresh_inode(dir, res.dir_attr);
- nfs_refresh_inode(dir, &dir_attr);
+ nfs_free_fattr(res.dir_attr);
+out:
dprintk("NFS reply readdir: %d\n", status);
return status;
}