On 7/27/22 18:22, Christoph Hellwig wrote:
The double indirect bio leads to somewhat suboptimal code generation. Instead return the (original or split) bio, and make sure the request_queue arguments to the lower level helpers is passed after the bio to avoid constant reshuffling of the argument passing registers. Also give it and the helpers used to implement it more descriptive names. Signed-off-by: Christoph Hellwig <hch@xxxxxx> --- block/blk-merge.c | 98 +++++++++++++++++------------------ block/blk-mq.c | 4 +- block/blk.h | 6 +-- drivers/block/drbd/drbd_req.c | 2 +- drivers/block/pktcdvd.c | 2 +- drivers/block/ps3vram.c | 2 +- drivers/md/dm.c | 6 +-- drivers/md/md.c | 2 +- drivers/nvme/host/multipath.c | 2 +- drivers/s390/block/dcssblk.c | 2 +- include/linux/blkdev.h | 2 +- 11 files changed, 63 insertions(+), 65 deletions(-)
Reviewed-by: Hannes Reinecke <hare@xxxxxxx> Cheers, Hannes -- Dr. Hannes Reinecke Kernel Storage Architect hare@xxxxxxx +49 911 74053 688 SUSE Software Solutions Germany GmbH, Maxfeldstr. 5, 90409 Nürnberg HRB 36809 (AG Nürnberg), GF: Felix Imendörffer
