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block: Fix front merge check
authorDamien Le Moal <damien.lemoal@hgst.com>
Thu, 21 Jul 2016 03:40:47 +0000 (21:40 -0600)
committerJens Axboe <axboe@fb.com>
Thu, 21 Jul 2016 03:40:47 +0000 (21:40 -0600)
commitabd8f57613a31a3c648aa13d46f3cad1c2ffab23
treeac5aab0bf6211f1dc878872db5ec73f9b99bda5btree | snapshot
parentf1cfc0ced03c71d1291a24f60310d88cc5cce3c3commit | diff
block: Fix front merge check

For a front merge, the maximum number of sectors of the
request must be checked against the front merge BIO sector,
not the current sector of the request.

Signed-off-by: Damien Le Moal <damien.lemoal@hgst.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
block/blk-merge.c diff | blob | history
include/linux/blkdev.h diff | blob | history
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