lkml.org 
[lkml]   [2007]   [Jun]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [PATCH 4/4] mm: variable length argument support
    On Wed, Jun 06, 2007 at 01:36:58AM -0700, Andrew Morton wrote:
    > On Tue, 05 Jun 2007 17:05:27 +0200 Peter Zijlstra <a.p.zijlstra@chello.nl> wrote:
    >
    > > From: Ollie Wild <aaw@google.com>
    > >
    > > Remove the arg+env limit of MAX_ARG_PAGES by copying the strings directly
    > > from the old mm into the new mm.
    > >
    > > We create the new mm before the binfmt code runs, and place the new stack
    > > at the very top of the address space. Once the binfmt code runs and figures
    > > out where the stack should be, we move it downwards.
    > >
    > > It is a bit peculiar in that we have one task with two mm's, one of which is
    > > inactive.
    > >
    > > ...
    > >
    > > + flush_cache_page(bprm->vma, kpos,
    > > + page_to_pfn(kmapped_page));
    >
    > Breaks SuperH:
    >
    > fs/exec.c: In function `bprm_mm_init':
    > fs/exec.c:268: warning: unused variable `vma'
    > fs/exec.c: In function `copy_strings':
    > fs/exec.c:431: error: structure has no member named `vma'
    >
    More pointedly, bprm->vma doesn't exist if CONFIG_MMU=n, which Andrew's
    config seems to have ;-)
    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2007-06-06 10:47    [W:0.024 / U:1.512 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site