From: Raghavendra K T <raghavendra...@linux.vnet.ibm.com> Since #sector is always positive the reduced condition check encompasses maxsector < nr_sectors check.
Signed-off-by: Raghavendra K T <raghavendra...@linux.vnet.ibm.com> --- An userspace program looping with: maxsector - 0-9999 nr_sector - 0-999 sector - 0-999 gave 6.4% improvement with new condition though I agree that it is not the best way to test it perhaps :) diff --git a/block/blk-core.c b/block/blk-core.c index 33c33bc..4a78583 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -1656,7 +1656,7 @@ static inline int bio_check_eod(struct bio *bio, unsigned int nr_sectors) if (maxsector) { sector_t sector = bio->bi_sector; - if (maxsector < nr_sectors || maxsector - nr_sectors < sector) { + if (maxsector - nr_sectors < sector) { /* * This may well happen - the kernel calls bread() * without checking the size of the device, e.g., when -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/