block: add a missing BIOVEC_SEG_BOUNDARY check in bio_add_pc_page
The actual recaculation of segments in __blk_recalc_rq_segments will do this check, so there is no point in forcing it if we know it won't succeed. Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NJens Axboe <axboe@kernel.dk>
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