• Christophe Leroy's avatar
    powerpc: regain entire stack space · a7916a1d
    Christophe Leroy authored
    thread_info is not anymore in the stack, so the entire stack
    can now be used.
    
    There is also no risk anymore of corrupting task_cpu(p) with a
    stack overflow so the patch removes the test.
    
    When doing this, an explicit test for NULL stack pointer is
    needed in validate_sp() as it is not anymore implicitely covered
    by the sizeof(thread_info) gap.
    
    In the meantime, with the previous patch all pointers to the stacks
    are not anymore pointers to thread_info so this patch changes them
    to void*
    Signed-off-by: default avatarChristophe Leroy <christophe.leroy@c-s.fr>
    Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
    a7916a1d
entry_32.S 33.7 KB