• Tejun Heo's avatar
    [PATCH] libata: always use polling IDENTIFY · 800b3996
    Tejun Heo authored
    libata switched to IRQ-driven IDENTIFY when IRQ-driven PIO was
    introduced.  This has caused a lot of problems including device
    misdetection and phantom device.
    
    ATA_FLAG_DETECT_POLLING was added recently to selectively use polling
    IDENTIFY on problemetic drivers but many controllers and devices are
    affected by this problem and trying to adding ATA_FLAG_DETECT_POLLING
    for each such case is diffcult and not very rewarding.
    
    This patch makes libata always use polling IDENTIFY.  This is
    consistent with libata's original behavior and drivers/ide's behavior.
    Signed-off-by: default avatarTejun Heo <htejun@gmail.com>
    Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
    800b3996
libata-eh.c 54.6 KB