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hugetlbfs: cleanup mknod and tmpfile

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Duplicate the few lines that are shared between hugetlbfs_mknod() and
hugetlbfs_tmpfile().

This is a prerequisite for sanely changing the signature of ->tmpfile().

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Reviewed-by: Christian Brauner (Microsoft) <brauner@kernel.org>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
This commit is contained in:
Al Viro 2022-09-24 06:59:59 +02:00 committed by Miklos Szeredi
parent 22873deac9
commit 19ee5345f2
1 changed files with 17 additions and 25 deletions
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42
fs/hugetlbfs/inode.c
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@ -885,33 +885,18 @@ static struct inode *hugetlbfs_get_inode(struct super_block *sb,
/*
* File creation. Allocate an inode, and we're done..
*/
static int do_hugetlbfs_mknod(struct inode *dir,
struct dentry *dentry,
umode_t mode,
dev_t dev,
bool tmpfile)
{
struct inode *inode;
int error = -ENOSPC;
inode = hugetlbfs_get_inode(dir->i_sb, dir, mode, dev);
if (inode) {
dir->i_ctime = dir->i_mtime = current_time(dir);
if (tmpfile) {
d_tmpfile(dentry, inode);
} else {
d_instantiate(dentry, inode);
dget(dentry);/* Extra count - pin the dentry in core */
}
error = 0;
}
return error;
}
static int hugetlbfs_mknod(struct user_namespace *mnt_userns, struct inode *dir,
struct dentry *dentry, umode_t mode, dev_t dev)
{
return do_hugetlbfs_mknod(dir, dentry, mode, dev, false);
struct inode *inode;
inode = hugetlbfs_get_inode(dir->i_sb, dir, mode, dev);
if (!inode)
return -ENOSPC;
dir->i_ctime = dir->i_mtime = current_time(dir);
d_instantiate(dentry, inode);
dget(dentry);/* Extra count - pin the dentry in core */
return 0;
}
static int hugetlbfs_mkdir(struct user_namespace *mnt_userns, struct inode *dir,
@ -935,7 +920,14 @@ static int hugetlbfs_tmpfile(struct user_namespace *mnt_userns,
struct inode *dir, struct dentry *dentry,
umode_t mode)
{
return do_hugetlbfs_mknod(dir, dentry, mode | S_IFREG, 0, true);
struct inode *inode;
inode = hugetlbfs_get_inode(dir->i_sb, dir, mode | S_IFREG, 0);
if (!inode)
return -ENOSPC;
dir->i_ctime = dir->i_mtime = current_time(dir);
d_tmpfile(dentry, inode);
return 0;
}
static int hugetlbfs_symlink(struct user_namespace *mnt_userns,