Re: [git pull] vfs.git bits and pieces

[Damien Wyart]

> > BTW, something odd happened to mm/memory.c - either a mangled patch
> > or a lost followup:

> >     commit ea1e7ed33708
> >     mm: create a separate slab for page->ptl allocation

> > Fair enough, and yes, it does create that separate slab. The problem
> > is, it's still using kmalloc/kfree for those beasts -
> > page_ptl_cachep isn't used at all...

* Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> [2013-11-20 14:33]:
> Ok, it looks straightforward enough to just replace the kmalloc/kfree
> with using a slab allocation using the page_ptl_cachep pointer. I'd do
> it myself, but I would like to know how it got lost? Also, much
> testing to make sure the cachep is initialized early enough.

The initial sending had the proper hunks at the end, so something really
got lost afterwards...
https://lkml.org/lkml/2013/10/22/129

-- 
Damien Wyart
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