Commit f3f8e175 authored by Al Viro's avatar Al Viro

[PATCH] reduce the stack footprint of exportfs_decode_fh()

no need to have _two_ 256-byte arrays on stack...
Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent 9308a612
......@@ -94,9 +94,8 @@ find_disconnected_root(struct dentry *dentry)
* It may already be, as the flag isn't always updated when connection happens.
*/
static int
reconnect_path(struct vfsmount *mnt, struct dentry *target_dir)
reconnect_path(struct vfsmount *mnt, struct dentry *target_dir, char *nbuf)
{
char nbuf[NAME_MAX+1];
int noprogress = 0;
int err = -ESTALE;
......@@ -360,6 +359,7 @@ struct dentry *exportfs_decode_fh(struct vfsmount *mnt, struct fid *fid,
{
const struct export_operations *nop = mnt->mnt_sb->s_export_op;
struct dentry *result, *alias;
char nbuf[NAME_MAX+1];
int err;
/*
......@@ -379,7 +379,7 @@ struct dentry *exportfs_decode_fh(struct vfsmount *mnt, struct fid *fid,
* filesystem root.
*/
if (result->d_flags & DCACHE_DISCONNECTED) {
err = reconnect_path(mnt, result);
err = reconnect_path(mnt, result, nbuf);
if (err)
goto err_result;
}
......@@ -395,7 +395,6 @@ struct dentry *exportfs_decode_fh(struct vfsmount *mnt, struct fid *fid,
* It's not a directory. Life is a little more complicated.
*/
struct dentry *target_dir, *nresult;
char nbuf[NAME_MAX+1];
/*
* See if either the dentry we just got from the filesystem
......@@ -429,7 +428,7 @@ struct dentry *exportfs_decode_fh(struct vfsmount *mnt, struct fid *fid,
* connected to the filesystem root. The VFS really doesn't
* like disconnected directories..
*/
err = reconnect_path(mnt, target_dir);
err = reconnect_path(mnt, target_dir, nbuf);
if (err) {
dput(target_dir);
goto err_result;
......
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