• Jonas Stare's avatar
    ide: skip ide_wait_not_busy() on noprobe-disks · 8266105b
    Jonas Stare authored
    There is a problem in some hardware where the kernel will stall for
    35 seconds waiting for disks that don't exist. This patch will skip
    waiting for the BSY-bit on IDE drives to go away if you set "hdx=noprobe"
    as a kernel option and the disk is not marked as 'present' (like when
    you set the geometry by hand).
    If no noprobe-option is set the code will work (more or less) as the
    original but if set the code will skip the ide_wait_not_busy() for
    that drive. Even if there would be a drive there and it is still busy
    afterwards it should not matter since it isn't probed for later.
    The code also honors the MAX_DRIVES variable instead of assuming that
    there will be two harddrives on the bus.
    Bart: minor cleanups
    Signed-off-by: default avatarJonas Stare <jonas.stare@purplescout.se>
    CC: Andrew Morton <akpm@linux-foundation.org>,
    Cc: Linus Torvalds <torvalds@linux-foundation.org>
    Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
    Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
    Signed-off-by: default avatarBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
ide-probe.c 36.7 KB