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authorTrond Myklebust <Trond.Myklebust@netapp.com>2010-04-16 16:22:49 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2010-05-14 15:09:25 -0400
commit136f2627c932da5835e67e464e191d8c43c3f3fd (patch)
tree5f6aff24fe7163a260c553f3d4899c4ef51abbf7 /fs/nfs
parentaa49b4cf7dbf45438563f0ff6a2d23a68b70a7b9 (diff)
downloadlinux-136f2627c932da5835e67e464e191d8c43c3f3fd.tar.bz2
NFS: Reduce the stack footprint of nfs_link()
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs')
-rw-r--r--fs/nfs/nfs3proc.c22
-rw-r--r--fs/nfs/nfs4proc.c16
2 files changed, 21 insertions, 17 deletions
diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c
index 1c5bfb3d6f08..982a81bb7257 100644
--- a/fs/nfs/nfs3proc.c
+++ b/fs/nfs/nfs3proc.c
@@ -468,30 +468,32 @@ out:
static int
nfs3_proc_link(struct inode *inode, struct inode *dir, struct qstr *name)
{
- struct nfs_fattr dir_attr, fattr;
struct nfs3_linkargs arg = {
.fromfh = NFS_FH(inode),
.tofh = NFS_FH(dir),
.toname = name->name,
.tolen = name->len
};
- struct nfs3_linkres res = {
- .dir_attr = &dir_attr,
- .fattr = &fattr
- };
+ struct nfs3_linkres res;
struct rpc_message msg = {
.rpc_proc = &nfs3_procedures[NFS3PROC_LINK],
.rpc_argp = &arg,
.rpc_resp = &res,
};
- int status;
+ int status = -ENOMEM;
dprintk("NFS call link %s\n", name->name);
- nfs_fattr_init(&dir_attr);
- nfs_fattr_init(&fattr);
+ res.fattr = nfs_alloc_fattr();
+ res.dir_attr = nfs_alloc_fattr();
+ if (res.fattr == NULL || res.dir_attr == NULL)
+ goto out;
+
status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
- nfs_post_op_update_inode(dir, &dir_attr);
- nfs_post_op_update_inode(inode, &fattr);
+ nfs_post_op_update_inode(dir, res.dir_attr);
+ nfs_post_op_update_inode(inode, res.fattr);
+out:
+ nfs_free_fattr(res.dir_attr);
+ nfs_free_fattr(res.fattr);
dprintk("NFS reply link: %d\n", status);
return status;
}
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 14cde99d8a60..0ffd4cfd3b1f 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -2707,28 +2707,30 @@ static int _nfs4_proc_link(struct inode *inode, struct inode *dir, struct qstr *
.name = name,
.bitmask = server->attr_bitmask,
};
- struct nfs_fattr fattr, dir_attr;
struct nfs4_link_res res = {
.server = server,
- .fattr = &fattr,
- .dir_attr = &dir_attr,
};
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_LINK],
.rpc_argp = &arg,
.rpc_resp = &res,
};
- int status;
+ int status = -ENOMEM;
+
+ res.fattr = nfs_alloc_fattr();
+ res.dir_attr = nfs_alloc_fattr();
+ if (res.fattr == NULL || res.dir_attr == NULL)
+ goto out;
- nfs_fattr_init(res.fattr);
- nfs_fattr_init(res.dir_attr);
status = nfs4_call_sync(server, &msg, &arg, &res, 1);
if (!status) {
update_changeattr(dir, &res.cinfo);
nfs_post_op_update_inode(dir, res.dir_attr);
nfs_post_op_update_inode(inode, res.fattr);
}
-
+out:
+ nfs_free_fattr(res.dir_attr);
+ nfs_free_fattr(res.fattr);
return status;
}