lkml.org 
[lkml]   [2008]   [Mar]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH] [2/13] Make get_order(0) return 0
    Date

    This is needed for some followup patches. Some old drivers
    (like xd.c) pass 0 to get_order and the compat wrapper for
    the mask allocator doesn't like the resulting underflow.

    Signed-off-by: Andi Kleen <ak@suse.de>

    ---
    include/asm-generic/page.h | 3 +++
    1 file changed, 3 insertions(+)

    Index: linux/include/asm-generic/page.h
    ===================================================================
    --- linux.orig/include/asm-generic/page.h
    +++ linux/include/asm-generic/page.h
    @@ -11,6 +11,9 @@ static __inline__ __attribute_const__ in
    {
    int order;

    + if (size == 0)
    + return 0;
    +
    size = (size - 1) >> (PAGE_SHIFT - 1);
    order = -1;
    do {

    \
     
     \ /
      Last update: 2008-03-07 10:13    [W:0.019 / U:29.676 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site