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Diffstat (limited to 'fs/hugetlbfs/inode.c')
-rw-r--r--fs/hugetlbfs/inode.c66
1 files changed, 35 insertions, 31 deletions
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 0be5a78598d0..e425ad9d0490 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -447,8 +447,8 @@ static int hugetlbfs_setattr(struct dentry *dentry, struct iattr *attr)
return 0;
}
-static struct inode *hugetlbfs_get_inode(struct super_block *sb, uid_t uid,
- gid_t gid, int mode, dev_t dev)
+static struct inode *hugetlbfs_get_root(struct super_block *sb,
+ struct hugetlbfs_config *config)
{
struct inode *inode;
@@ -456,9 +456,31 @@ static struct inode *hugetlbfs_get_inode(struct super_block *sb, uid_t uid,
if (inode) {
struct hugetlbfs_inode_info *info;
inode->i_ino = get_next_ino();
- inode->i_mode = mode;
- inode->i_uid = uid;
- inode->i_gid = gid;
+ inode->i_mode = S_IFDIR | config->mode;
+ inode->i_uid = config->uid;
+ inode->i_gid = config->gid;
+ inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+ info = HUGETLBFS_I(inode);
+ mpol_shared_policy_init(&info->policy, NULL);
+ inode->i_op = &hugetlbfs_dir_inode_operations;
+ inode->i_fop = &simple_dir_operations;
+ /* directory inodes start off with i_nlink == 2 (for "." entry) */
+ inc_nlink(inode);
+ }
+ return inode;
+}
+
+static struct inode *hugetlbfs_get_inode(struct super_block *sb,
+ struct inode *dir,
+ umode_t mode, dev_t dev)
+{
+ struct inode *inode;
+
+ inode = new_inode(sb);
+ if (inode) {
+ struct hugetlbfs_inode_info *info;
+ inode->i_ino = get_next_ino();
+ inode_init_owner(inode, dir, mode);
inode->i_mapping->a_ops = &hugetlbfs_aops;
inode->i_mapping->backing_dev_info =&hugetlbfs_backing_dev_info;
inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
@@ -500,20 +522,12 @@ static struct inode *hugetlbfs_get_inode(struct super_block *sb, uid_t uid,
* File creation. Allocate an inode, and we're done..
*/
static int hugetlbfs_mknod(struct inode *dir,
- struct dentry *dentry, int mode, dev_t dev)
+ struct dentry *dentry, umode_t mode, dev_t dev)
{
struct inode *inode;
int error = -ENOSPC;
- gid_t gid;
-
- if (dir->i_mode & S_ISGID) {
- gid = dir->i_gid;
- if (S_ISDIR(mode))
- mode |= S_ISGID;
- } else {
- gid = current_fsgid();
- }
- inode = hugetlbfs_get_inode(dir->i_sb, current_fsuid(), gid, mode, dev);
+
+ inode = hugetlbfs_get_inode(dir->i_sb, dir, mode, dev);
if (inode) {
dir->i_ctime = dir->i_mtime = CURRENT_TIME;
d_instantiate(dentry, inode);
@@ -523,7 +537,7 @@ static int hugetlbfs_mknod(struct inode *dir,
return error;
}
-static int hugetlbfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+static int hugetlbfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
{
int retval = hugetlbfs_mknod(dir, dentry, mode | S_IFDIR, 0);
if (!retval)
@@ -531,7 +545,7 @@ static int hugetlbfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
return retval;
}
-static int hugetlbfs_create(struct inode *dir, struct dentry *dentry, int mode, struct nameidata *nd)
+static int hugetlbfs_create(struct inode *dir, struct dentry *dentry, umode_t mode, struct nameidata *nd)
{
return hugetlbfs_mknod(dir, dentry, mode | S_IFREG, 0);
}
@@ -541,15 +555,8 @@ static int hugetlbfs_symlink(struct inode *dir,
{
struct inode *inode;
int error = -ENOSPC;
- gid_t gid;
-
- if (dir->i_mode & S_ISGID)
- gid = dir->i_gid;
- else
- gid = current_fsgid();
- inode = hugetlbfs_get_inode(dir->i_sb, current_fsuid(),
- gid, S_IFLNK|S_IRWXUGO, 0);
+ inode = hugetlbfs_get_inode(dir->i_sb, dir, S_IFLNK|S_IRWXUGO, 0);
if (inode) {
int l = strlen(symname)+1;
error = page_symlink(inode, symname, l);
@@ -666,7 +673,6 @@ static struct inode *hugetlbfs_alloc_inode(struct super_block *sb)
static void hugetlbfs_i_callback(struct rcu_head *head)
{
struct inode *inode = container_of(head, struct inode, i_rcu);
- INIT_LIST_HEAD(&inode->i_dentry);
kmem_cache_free(hugetlbfs_inode_cachep, HUGETLBFS_I(inode));
}
@@ -858,8 +864,7 @@ hugetlbfs_fill_super(struct super_block *sb, void *data, int silent)
sb->s_magic = HUGETLBFS_MAGIC;
sb->s_op = &hugetlbfs_ops;
sb->s_time_gran = 1;
- inode = hugetlbfs_get_inode(sb, config.uid, config.gid,
- S_IFDIR | config.mode, 0);
+ inode = hugetlbfs_get_root(sb, &config);
if (!inode)
goto out_free;
@@ -957,8 +962,7 @@ struct file *hugetlb_file_setup(const char *name, size_t size,
path.mnt = mntget(hugetlbfs_vfsmount);
error = -ENOSPC;
- inode = hugetlbfs_get_inode(root->d_sb, current_fsuid(),
- current_fsgid(), S_IFREG | S_IRWXUGO, 0);
+ inode = hugetlbfs_get_inode(root->d_sb, NULL, S_IFREG | S_IRWXUGO, 0);
if (!inode)
goto out_dentry;