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nfs: nfs_do_{ref,sub}mount() superblock argument is redundant 

It's always equal to dentry->d_sb

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2011-03-16 06:32:07 -04:00
parent b514f872f8
commit f8ad9c4bae
3 changed files with 13 additions and 18 deletions
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4
fs/nfs/internal.h
View File

@ -163,10 +163,10 @@ static inline void nfs_fs_proc_exit(void)
/* nfs4namespace.c */
#ifdef CONFIG_NFS_V4
extern struct vfsmount *nfs_do_refmount(struct super_block *sb, struct dentry *dentry);
extern struct vfsmount *nfs_do_refmount(struct dentry *dentry);
#else
static inline
struct vfsmount *nfs_do_refmount(struct super_block *sb, struct dentry *dentry)
struct vfsmount *nfs_do_refmount(struct dentry *dentry)
{
return ERR_PTR(-ENOENT);
}

15
fs/nfs/namespace.c
View File

@ -25,8 +25,7 @@ static LIST_HEAD(nfs_automount_list);
static DECLARE_DELAYED_WORK(nfs_automount_task, nfs_expire_automounts);
int nfs_mountpoint_expiry_timeout = 500 * HZ;
static struct vfsmount *nfs_do_submount(struct super_block *sb,
struct dentry *dentry,
static struct vfsmount *nfs_do_submount(struct dentry *dentry,
struct nfs_fh *fh,
struct nfs_fattr *fattr);
@ -164,9 +163,9 @@ struct vfsmount *nfs_d_automount(struct path *path)
}
if (fattr->valid & NFS_ATTR_FATTR_V4_REFERRAL)
mnt = nfs_do_refmount(path->mnt->mnt_sb, path->dentry);
mnt = nfs_do_refmount(path->dentry);
else
mnt = nfs_do_submount(path->mnt->mnt_sb, path->dentry, fh, fattr);
mnt = nfs_do_submount(path->dentry, fh, fattr);
if (IS_ERR(mnt))
goto out;
@ -230,19 +229,17 @@ static struct vfsmount *nfs_do_clone_mount(struct nfs_server *server,
/**
* nfs_do_submount - set up mountpoint when crossing a filesystem boundary
* @sb - superblock of parent directory
* @dentry - parent directory
* @fh - filehandle for new root dentry
* @fattr - attributes for new root inode
*
*/
static struct vfsmount *nfs_do_submount(struct super_block *sb,
struct dentry *dentry,
static struct vfsmount *nfs_do_submount(struct dentry *dentry,
struct nfs_fh *fh,
struct nfs_fattr *fattr)
{
struct nfs_clone_mount mountdata = {
.sb = sb,
.sb = dentry->d_sb,
.dentry = dentry,
.fh = fh,
.fattr = fattr,
@ -262,7 +259,7 @@ static struct vfsmount *nfs_do_submount(struct super_block *sb,
mnt = (struct vfsmount *)devname;
if (IS_ERR(devname))
goto free_page;
mnt = nfs_do_clone_mount(NFS_SB(sb), devname, &mountdata);
mnt = nfs_do_clone_mount(NFS_SB(dentry->d_sb), devname, &mountdata);
free_page:
free_page((unsigned long)page);
out:

12
fs/nfs/nfs4namespace.c
View File

@ -161,20 +161,18 @@ static struct vfsmount *try_location(struct nfs_clone_mount *mountdata,
/**
* nfs_follow_referral - set up mountpoint when hitting a referral on moved error
* @sb - superblock of parent directory
* @dentry - parent directory
* @locations - array of NFSv4 server location information
*
*/
static struct vfsmount *nfs_follow_referral(struct super_block *sb,
struct dentry *dentry,
static struct vfsmount *nfs_follow_referral(struct dentry *dentry,
const struct nfs4_fs_locations *locations)
{
struct vfsmount *mnt = ERR_PTR(-ENOENT);
struct nfs_clone_mount mountdata = {
.sb = sb,
.sb = dentry->d_sb,
.dentry = dentry,
.authflavor = NFS_SB(sb)->client->cl_auth->au_flavor,
.authflavor = NFS_SB(dentry->d_sb)->client->cl_auth->au_flavor,
};
char *page = NULL, *page2 = NULL;
int loc, error;
@ -224,7 +222,7 @@ out:
* @dentry - dentry of referral
*
*/
struct vfsmount *nfs_do_refmount(struct super_block *sb, struct dentry *dentry)
struct vfsmount *nfs_do_refmount(struct dentry *dentry)
{
struct vfsmount *mnt = ERR_PTR(-ENOMEM);
struct dentry *parent;
@ -257,7 +255,7 @@ struct vfsmount *nfs_do_refmount(struct super_block *sb, struct dentry *dentry)
fs_locations->fs_path.ncomponents <= 0)
goto out_free;
mnt = nfs_follow_referral(sb, dentry, fs_locations);
mnt = nfs_follow_referral(dentry, fs_locations);
out_free:
__free_page(page);
kfree(fs_locations);