[lkml]   [2009]   [Jun]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: slab: setup allocators earlier in the boot sequence
    Hi Benjamin,

    On Fri, 2009-06-12 at 17:34 +1000, Benjamin Herrenschmidt wrote:
    > > I don't like that approach at all. Fixing all the call sites... we are
    > > changing things all over the place, we'll certainly miss some, and
    > > honestly, it's none of the business of things like vmalloc to know about
    > > things like what kmalloc flags are valid and when...
    > Oh and btw, your patch alone doesn't fix powerpc, because it's missing
    > a whole bunch of GFP_KERNEL's in the arch code... You would have to
    > grep the entire kernel for things that check slab_is_available() and
    > even then you'll be missing some.

    Ah, the patch is not against current git so, yeah, I missed some.

    On Fri, 2009-06-12 at 17:39 +1000, Benjamin Herrenschmidt wrote:
    > For example, slab_is_available() didn't always exist, and so in the
    > early days on powerpc, we used a mem_init_done global that is set form
    > mem_init() (not perfect but works in practice). And we still have code
    > using that to do the test.

    IMHO, that would be a bug :-). But anyway, see the other thread for my
    suggestion how to do what you want in a slightly cleaner way.


     \ /
      Last update: 2009-06-12 09:51    [W:0.035 / U:12.056 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site