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init_rootfs(): don't bother with init_ramfs_fs()

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the only thing done by the latter is making ramfs visible
to mount(2); we don't need it there - rootfs is separate
and, in fact, made visible to mount(2) in the same init_rootfs().

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2019-05-30 15:59:57 -04:00
parent 5afdd0f1e6
commit 14a253ce42
3 changed files with 1 additions and 8 deletions
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6
fs/ramfs/inode.c
View File

@ -266,12 +266,8 @@ static struct file_system_type ramfs_fs_type = {
.fs_flags = FS_USERNS_MOUNT,
};
int __init init_ramfs_fs(void)
static int __init init_ramfs_fs(void)
{
static unsigned long once;
if (test_and_set_bit(0, &once))
return 0;
return register_filesystem(&ramfs_fs_type);
}
fs_initcall(init_ramfs_fs);

1
include/linux/ramfs.h
View File

@ -19,7 +19,6 @@ extern int ramfs_nommu_expand_for_mapping(struct inode *inode, size_t newsize);
extern const struct file_operations ramfs_file_operations;
extern const struct vm_operations_struct generic_file_vm_ops;
extern int __init init_ramfs_fs(void);
int ramfs_fill_super(struct super_block *sb, void *data, int silent);

2
init/do_mounts.c
View File

@ -658,8 +658,6 @@ int __init init_rootfs(void)
(!root_fs_names || strstr(root_fs_names, "tmpfs"))) {
err = shmem_init();
is_tmpfs = true;
} else {
err = init_ramfs_fs();
}
if (err)