Re: [patch] drivers: wait for threaded probes between initcall levels

Olaf Hering
2006-10-27T23:20:28Z

On Fri, Oct 27, Alan Cox wrote:

> Ar Gwe, 2006-10-27 am 11:42 -0700, ysgrifennodd Andrew Morton:
> > IOW, we want to be multithreaded _within_ an initcall level, but not between
> > different levels.
>
> Thats actually insufficient. We have link ordered init sequences in
> large numbers of driver subtrees (ATA, watchdog, etc). We'll need
> several more initcall layers to fix that.

Is it time for something better?
True dependencies, an addition to or as replacement for module_init()?
random example: hfs/super.c:
depends_on_initialized(init_hfs_fs: init_hfsplus_fs,kmem_cache_thingie,core_filesystem_thingie,foo,bar,worldpeace);
If init_hfsplus_fs() does not exist it should be no error.

Whatever the sytax will be and however its parsed during build, that link order
requirement bites every other month.