| Message ID | 1477591299-26504-8-git-send-email-javier@cnexlabs.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/drivers/lightnvm/rrpc.c b/drivers/lightnvm/rrpc.c index 8deef2e..0b8251f 100644 --- a/drivers/lightnvm/rrpc.c +++ b/drivers/lightnvm/rrpc.c @@ -984,6 +984,12 @@ static blk_qc_t rrpc_make_rq(struct request_queue *q, struct bio *bio) struct nvm_rq *rqd; int err; + /* + * Multipage is supported up until 256kb due to NVME's 64 bit completion + * bitmap. + */ + blk_queue_split(q, &bio, q->bio_split); + if (bio_op(bio) == REQ_OP_DISCARD) { rrpc_discard(rrpc, bio); return BLK_QC_T_NONE;
rrpc cannot handle bios of size > 256kb due to NVMe using a 64 bit bitmap to signal I/O completion. If a larger bio comes, split it explicitly. Signed-off-by: Javier González <javier@cnexlabs.com> --- drivers/lightnvm/rrpc.c | 6 ++++++ 1 file changed, 6 insertions(+)