lkml.org 
[lkml]   [2007]   [Aug]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    From
    SubjectRe: [PATCH 0/24] make atomic_read() behave consistently across all architectures
    Date
    On Thursday 09 August 2007, Chris Snook wrote:
    > This patchset makes the behavior of atomic_read uniform by removing the
    > volatile keyword from all atomic_t and atomic64_t definitions that currently
    > have it, and instead explicitly casts the variable as volatile in
    > atomic_read().  This leaves little room for creative optimization by the
    > compiler, and is in keeping with the principles behind "volatile considered
    > harmful".
    >

    Just an idea: since all architectures already include asm-generic/atomic.h,
    why not move the definitions of atomic_t and atomic64_t, as well as anything
    that does not involve architecture specific inline assembly into the generic
    header?

    Arnd <><
    -
    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: 2007-08-09 15:59    [W:3.151 / U:0.060 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site