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  • ipipe-arm64
  • block
  • blk-flush.c
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  • Jeff Moyer's avatar
    blk-flush: fix invalid BUG_ON in blk_insert_flush · 834f9f61
    Jeff Moyer authored Oct 17, 2011
    A user reported a regression due to commit
    4853abaa (block: fix flush
    machinery for stacking drivers with differring flush flags).
    Part of the problem is that blk_insert_flush required a
    single bio be attached to the request.  In reality, having
    no attached bio is also a valid case, as can be observed with
    an empty flush.
    
    [1] http://www.redhat.com/archives/dm-devel/2011-September/msg00154.html
    
    Reported-by: default avatarChristophe Saout <christophe@saout.de>
    Signed-off-by: Jeff Moyer <jmoyer@redhat.com
    Acked-by: default avatarTejun Heo <tj@kernel.org>
    
    Stable note: 3.1
    Cc: stable@vger.kernel.org
    Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
    834f9f61

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