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    Revert "block: Remove extra discard_alignment from hd_struct." · a1706ac4
    Jens Axboe 提交于
    It was not a good idea to start dereferencing disk->queue from
    the fs sysfs strategy for displaying discard alignment. We ran
    into first a NULL pointer deref, and after fixing that we sometimes
    see unvalid disk->queue pointer values.
    
    Since discard is the only one of the bunch actually looking into
    the queue, just revert the change.
    
    This reverts commit 23ceb5b7.
    
    Conflicts:
    	fs/partitions/check.c
    a1706ac4
genhd.h 19.8 KB