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[PATCH] reduce the stack footprint of exportfs_decode_fh() 

no need to have _two_ 256-byte arrays on stack...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2008-08-11 12:39:47 -04:00
parent 9308a6128d
commit f3f8e17571
1 changed files with 4 additions and 5 deletions
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9
fs/exportfs/expfs.c
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@ -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;