On Sun, 31 Dec 2000, Roman Zippel wrote:
> On Sun, 31 Dec 2000, Linus Torvalds wrote:
> > Let me repeat myself one more time:
> > I do not believe that "get_block()" is as big of a problem as people make
> > it out to be.
> The real problem is that get_block() doesn't scale and it's very hard to
> do. A recursive per inode-semaphore might help, but it's still a pain to
> get it right.
There's nothing unscalable in get_block() per se. The only lock we hold is
the per-page lock, which we must hold anyway. get_block() itself does not
need any real locking: you can do it with a simple per-inode spinlock if
you want to (and release the spinlock and try again if you need to fetch
non-cached data blocks).
Sure, the current ext2 _implementation_ sucks. Nobody has ever contested
Stop re-designing something just because you want to.
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to firstname.lastname@example.org
Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Sun Dec 31 2000 - 21:00:16 EST