NFS: Reduce stack footprint of nfs_readdir()
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 1debc09e..18da8ab 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -530,9 +530,7 @@
nfs_readdir_descriptor_t my_desc,
*desc = &my_desc;
struct nfs_entry my_entry;
- struct nfs_fh fh;
- struct nfs_fattr fattr;
- long res;
+ int res = -ENOMEM;
dfprintk(FILE, "NFS: readdir(%s/%s) starting at cookie %llu\n",
dentry->d_parent->d_name.name, dentry->d_name.name,
@@ -554,9 +552,11 @@
my_entry.cookie = my_entry.prev_cookie = 0;
my_entry.eof = 0;
- my_entry.fh = &fh;
- my_entry.fattr = &fattr;
- nfs_fattr_init(&fattr);
+ my_entry.fh = nfs_alloc_fhandle();
+ my_entry.fattr = nfs_alloc_fattr();
+ if (my_entry.fh == NULL || my_entry.fattr == NULL)
+ goto out_alloc_failed;
+
desc->entry = &my_entry;
nfs_block_sillyrename(dentry);
@@ -598,7 +598,10 @@
nfs_unblock_sillyrename(dentry);
if (res > 0)
res = 0;
- dfprintk(FILE, "NFS: readdir(%s/%s) returns %ld\n",
+out_alloc_failed:
+ nfs_free_fattr(my_entry.fattr);
+ nfs_free_fhandle(my_entry.fh);
+ dfprintk(FILE, "NFS: readdir(%s/%s) returns %d\n",
dentry->d_parent->d_name.name, dentry->d_name.name,
res);
return res;