On Sat, 29 Oct 2016 14:08:31 +0800 zhongjiang <[email protected]> wrote:
> From: zhong jiang <[email protected]> > > Since 'commit 3e89e1c5ea84 ("hugetlb: make mm and fs code explicitly > non-modular")' > bring in the mainline. mount hugetlbfs will result in the following issue. > > mount: unknown filesystme type 'hugetlbfs' > > because previous patch remove the module_alias_fs, when we mount the fs type, > the caller get_fs_type can not find the filesystem. > > The patch just recover the module_alias_fs to identify the hugetlbfs. hm, 3e89e1c5ea84 ("hugetlb: make mm and fs code explicitly non-modular") was merged almost a year ago. And you are apparently the first person to discover this regression. Can you think why that is? > index 4fb7b10..b63e7de 100644 > --- a/fs/hugetlbfs/inode.c > +++ b/fs/hugetlbfs/inode.c > @@ -35,6 +35,7 @@ > #include <linux/security.h> > #include <linux/magic.h> > #include <linux/migrate.h> > +#include <linux/module.h> > #include <linux/uio.h> > > #include <asm/uaccess.h> > @@ -1209,6 +1210,7 @@ static struct dentry *hugetlbfs_mount(struct > file_system_type *fs_type, > .mount = hugetlbfs_mount, > .kill_sb = kill_litter_super, > }; > +MODULE_ALIAS_FS("hugetlbfs"); > > static struct vfsmount *hugetlbfs_vfsmount[HUGE_MAX_HSTATE]; >
