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switch dentry_open() to struct path, make it grab references itself

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2012-06-26 21:58:53 +04:00
parent bf349a4470
commit 765927b2d5
15 changed files with 106 additions and 151 deletions
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3
security/selinux/hooks.c
View File

@@ -2157,8 +2157,7 @@ static inline void flush_unauthorized_files(const struct cred *cred,
get_file(devnull);
} else {
devnull = dentry_open(
dget(selinux_null),
mntget(selinuxfs_mount),
&selinux_null,
O_RDWR, cred);
if (IS_ERR(devnull)) {
devnull = NULL;

2
security/selinux/include/security.h
View File

@@ -221,7 +221,7 @@ extern void selinux_status_update_policyload(int seqno);
extern void selinux_complete_init(void);
extern int selinux_disable(void);
extern void exit_sel_fs(void);
extern struct dentry *selinux_null;
extern struct path selinux_null;
extern struct vfsmount *selinuxfs_mount;
extern void selnl_notify_setenforce(int val);
extern void selnl_notify_policyload(u32 seqno);

6
security/selinux/selinuxfs.c
View File

@@ -1297,7 +1297,7 @@ out:
#define NULL_FILE_NAME "null"
struct dentry *selinux_null;
struct path selinux_null;
static ssize_t sel_read_avc_cache_threshold(struct file *filp, char __user *buf,
size_t count, loff_t *ppos)
@@ -1838,7 +1838,7 @@ static int sel_fill_super(struct super_block *sb, void *data, int silent)
init_special_inode(inode, S_IFCHR | S_IRUGO | S_IWUGO, MKDEV(MEM_MAJOR, 3));
d_add(dentry, inode);
selinux_null = dentry;
selinux_null.dentry = dentry;
dentry = sel_make_dir(sb->s_root, "avc", &sel_last_ino);
if (IS_ERR(dentry)) {
@@ -1912,7 +1912,7 @@ static int __init init_sel_fs(void)
return err;
}
selinuxfs_mount = kern_mount(&sel_fs_type);
selinux_null.mnt = selinuxfs_mount = kern_mount(&sel_fs_type);
if (IS_ERR(selinuxfs_mount)) {
printk(KERN_ERR "selinuxfs: could not mount!\n");
err = PTR_ERR(selinuxfs_mount);