• Stefani Seibold's avatar
    x86, fs: Fix x86 procfs stack information for threads on 64-bit · 89240ba0
    Stefani Seibold authored
    This patch fixes two issues in the procfs stack information on
    x86-64 linux.
    
    The 32 bit loader compat_do_execve did not store stack
    start. (this was figured out by Alexey Dobriyan).
    
    The stack information on a x64_64 kernel always shows 0 kbyte
    stack usage, because of a missing implementation of the KSTK_ESP
    macro which always returned -1.
    
    The new implementation now returns the right value.
    Signed-off-by: default avatarStefani Seibold <stefani@seibold.net>
    Cc: Americo Wang <xiyou.wangcong@gmail.com>
    Cc: Alexey Dobriyan <adobriyan@gmail.com>
    Cc: Al Viro <viro@zeniv.linux.org.uk>
    Cc: Andrew Morton <akpm@linux-foundation.org>
    LKML-Reference: <1257240160.4889.24.camel@wall-e>
    Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
    89240ba0
processor.h 25 KB