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NFS: Reduce stack footprint of nfs_readdir()

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Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust
2010-04-16 16:22:49 -04:00
parent 011fff7239
commit aa49b4cf7d
2 changed files with 18 additions and 12 deletions
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13
fs/nfs/nfs3proc.c
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@@ -597,7 +597,6 @@ nfs3_proc_readdir(struct dentry *dentry, struct rpc_cred *cred,
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 @@ nfs3_proc_readdir(struct dentry *dentry, struct rpc_cred *cred,
.pages = &page
};
struct nfs3_readdirres res = {
.dir_attr = &dir_attr,
.verf = verf,
.plus = plus
};
@@ -618,7 +616,7 @@ nfs3_proc_readdir(struct dentry *dentry, struct rpc_cred *cred,
.rpc_resp = &res,
.rpc_cred = cred
};
int status;
int status = -ENOMEM;
if (plus)
msg.rpc_proc = &nfs3_procedures[NFS3PROC_READDIRPLUS];
@@ -626,12 +624,17 @@ nfs3_proc_readdir(struct dentry *dentry, struct rpc_cred *cred,
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;
}