Commit 07ad603a authored by Jan Kiszka's avatar Jan Kiszka Committed by David S. Miller
Browse files

CAPI: Eliminate capifs_root variable 



capifs_mnt->mnt_sb->s_root already contains what we need.

Signed-off-by: default avatarJan Kiszka <jan.kiszka@web.de>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 90926f0e

drivers/isdn/capi/capifs.c

+10 −8
Original line number Diff line number Diff line
@@ -32,7 +32,6 @@ static char *revision = "$Revision: 1.1.2.3 $"; 
#define CAPIFS_SUPER_MAGIC (('C'<<8)|'N')



static struct vfsmount *capifs_mnt;

static struct dentry *capifs_root;



static struct {

	int setuid;
@@ -118,7 +117,7 @@ capifs_fill_super(struct super_block *s, void *data, int silent) 
	inode->i_fop = &simple_dir_operations;

	inode->i_nlink = 2;



	capifs_root = s->s_root = d_alloc_root(inode);

	s->s_root = d_alloc_root(inode);

	if (s->s_root)

		return 0;
@@ -143,15 +142,17 @@ static struct file_system_type capifs_fs_type = { 


struct dentry *capifs_new_ncci(unsigned int number, dev_t device)

{

	struct super_block *s = capifs_mnt->mnt_sb;

	struct dentry *root = s->s_root;

	struct dentry *dentry;

	struct inode *inode;

	char name[10];

	int namelen;



	mutex_lock(&capifs_root->d_inode->i_mutex);

	mutex_lock(&root->d_inode->i_mutex);



	namelen = sprintf(name, "%d", number);

	dentry = lookup_one_len(name, capifs_root, namelen);

	dentry = lookup_one_len(name, root, namelen);

	if (IS_ERR(dentry)) {

		dentry = NULL;

		goto unlock_out;
@@ -163,7 +164,7 @@ struct dentry *capifs_new_ncci(unsigned int number, dev_t device) 
		goto unlock_out;

	}



	inode = new_inode(capifs_mnt->mnt_sb);

	inode = new_inode(s);

	if (!inode) {

		dput(dentry);

		dentry = NULL;
@@ -181,19 +182,20 @@ struct dentry *capifs_new_ncci(unsigned int number, dev_t device) 
	dget(dentry);



unlock_out:

	mutex_unlock(&capifs_root->d_inode->i_mutex);

	mutex_unlock(&root->d_inode->i_mutex);



	return dentry;

}



void capifs_free_ncci(struct dentry *dentry)

{

	struct dentry *root = capifs_mnt->mnt_sb->s_root;

	struct inode *inode;



	if (!dentry)

		return;



	mutex_lock(&capifs_root->d_inode->i_mutex);

	mutex_lock(&root->d_inode->i_mutex);



	inode = dentry->d_inode;

	if (inode) {
@@ -203,7 +205,7 @@ void capifs_free_ncci(struct dentry *dentry) 
	}

	dput(dentry);



	mutex_unlock(&capifs_root->d_inode->i_mutex);

	mutex_unlock(&root->d_inode->i_mutex);

}



static int __init capifs_init(void)