• Martin Schwidefsky's avatar
    [PATCH] s390: remove pagex support · d4b68996
    Martin Schwidefsky authored
    Remove pagex pseudo page fault code.  It does not work together with the
    system call speedup that makes the complete system call path enabled for
    interrupts.  To make pagex and the syscall speedup code work together we would
    have to add code to the program check handler to do a critical section cleanup
    like the asynchronous interrupt code.  This would make program checks slower.
    Not what we want.
    Newer versions of z/VM have the improved pfault pseudo page fault interface.
    This replaces the old pagex interface and does not have the problem.  So its
    better to just rip out the pagex code.
    Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
    Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>