[lkml]   [2007]   [Jan]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: [PATCH] mm: remove global locks from mm/highmem.c
    Andrew Morton wrote:
    > On Mon, 29 Jan 2007 17:31:20 -0800
    > "Martin J. Bligh" <> wrote:
    >> Peter Zijlstra wrote:
    >>> On Sun, 2007-01-28 at 14:29 -0800, Andrew Morton wrote:
    >>>> As Christoph says, it's very much preferred that code be migrated over to
    >>>> kmap_atomic(). Partly because kmap() is deadlockable in situations where a
    >>>> large number of threads are trying to take two kmaps at the same time and
    >>>> we run out. This happened in the past, but incidences have gone away,
    >>>> probably because of kmap->kmap_atomic conversions.
    >>>> From which callsite have you measured problems?
    >>> CONFIG_HIGHPTE code in -rt was horrid. I'll do some measurements on
    >>> mainline.
    >> CONFIG_HIGHPTE is always horrid -we've known that for years.
    > We have? What's wrong with it? <looks around for bug reports>

    July 2003.

    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to
    More majordomo info at
    Please read the FAQ at

     \ /
      Last update: 2007-01-30 02:53    [W:0.021 / U:43.560 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site