diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-10-24 12:46:42 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-10-24 12:46:42 -0700 |
commit | d76913908102044f14381df865bb74df17a538cb (patch) | |
tree | 9b7ac673b6c585796397812691a7ff54f06ebd1b /drivers/nvme/target | |
parent | af0041875ce7f5a05362b884e90cf82c27876096 (diff) | |
parent | 24f7bb8863eb63b97ff7a83e6dd0d188a1c0575e (diff) |
Merge tag 'block-5.10-2020-10-24' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
- NVMe pull request from Christoph
- rdma error handling fixes (Chao Leng)
- fc error handling and reconnect fixes (James Smart)
- fix the qid displace when tracing ioctl command (Keith Busch)
- don't use BLK_MQ_REQ_NOWAIT for passthru (Chaitanya Kulkarni)
- fix MTDT for passthru (Logan Gunthorpe)
- blacklist Write Same on more devices (Kai-Heng Feng)
- fix an uninitialized work struct (zhenwei pi)"
- lightnvm out-of-bounds fix (Colin)
- SG allocation leak fix (Doug)
- rnbd fixes (Gioh, Guoqing, Jack)
- zone error translation fixes (Keith)
- kerneldoc markup fix (Mauro)
- zram lockdep fix (Peter)
- Kill unused io_context members (Yufen)
- NUMA memory allocation cleanup (Xianting)
- NBD config wakeup fix (Xiubo)
* tag 'block-5.10-2020-10-24' of git://git.kernel.dk/linux-block: (27 commits)
block: blk-mq: fix a kernel-doc markup
nvme-fc: shorten reconnect delay if possible for FC
nvme-fc: wait for queues to freeze before calling update_hr_hw_queues
nvme-fc: fix error loop in create_hw_io_queues
nvme-fc: fix io timeout to abort I/O
null_blk: use zone status for max active/open
nvmet: don't use BLK_MQ_REQ_NOWAIT for passthru
nvmet: cleanup nvmet_passthru_map_sg()
nvmet: limit passthru MTDS by BIO_MAX_PAGES
nvmet: fix uninitialized work for zero kato
nvme-pci: disable Write Zeroes on Sandisk Skyhawk
nvme: use queuedata for nvme_req_qid
nvme-rdma: fix crash due to incorrect cqe
nvme-rdma: fix crash when connect rejected
block: remove unused members for io_context
blk-mq: remove the calling of local_memory_node()
zram: Fix __zram_bvec_{read,write}() locking order
skd_main: remove unused including <linux/version.h>
sgl_alloc_order: fix memory leak
lightnvm: fix out-of-bounds write to array devices->info[]
...
Diffstat (limited to 'drivers/nvme/target')
-rw-r--r-- | drivers/nvme/target/core.c | 3 | ||||
-rw-r--r-- | drivers/nvme/target/passthru.c | 18 |
2 files changed, 15 insertions, 6 deletions
diff --git a/drivers/nvme/target/core.c b/drivers/nvme/target/core.c index 25d62d867563..aafcbc424b7a 100644 --- a/drivers/nvme/target/core.c +++ b/drivers/nvme/target/core.c @@ -1126,7 +1126,8 @@ static void nvmet_start_ctrl(struct nvmet_ctrl *ctrl) * in case a host died before it enabled the controller. Hence, simply * reset the keep alive timer when the controller is enabled. */ - mod_delayed_work(system_wq, &ctrl->ka_work, ctrl->kato * HZ); + if (ctrl->kato) + mod_delayed_work(system_wq, &ctrl->ka_work, ctrl->kato * HZ); } static void nvmet_clear_ctrl(struct nvmet_ctrl *ctrl) diff --git a/drivers/nvme/target/passthru.c b/drivers/nvme/target/passthru.c index 56c571052216..8ee94f056898 100644 --- a/drivers/nvme/target/passthru.c +++ b/drivers/nvme/target/passthru.c @@ -26,7 +26,7 @@ static u16 nvmet_passthru_override_id_ctrl(struct nvmet_req *req) struct nvme_ctrl *pctrl = ctrl->subsys->passthru_ctrl; u16 status = NVME_SC_SUCCESS; struct nvme_id_ctrl *id; - u32 max_hw_sectors; + int max_hw_sectors; int page_shift; id = kzalloc(sizeof(*id), GFP_KERNEL); @@ -48,6 +48,13 @@ static u16 nvmet_passthru_override_id_ctrl(struct nvmet_req *req) max_hw_sectors = min_not_zero(pctrl->max_segments << (PAGE_SHIFT - 9), pctrl->max_hw_sectors); + /* + * nvmet_passthru_map_sg is limitted to using a single bio so limit + * the mdts based on BIO_MAX_PAGES as well + */ + max_hw_sectors = min_not_zero(BIO_MAX_PAGES << (PAGE_SHIFT - 9), + max_hw_sectors); + page_shift = NVME_CAP_MPSMIN(ctrl->cap) + 12; id->mdts = ilog2(max_hw_sectors) + 9 - page_shift; @@ -180,18 +187,20 @@ static void nvmet_passthru_req_done(struct request *rq, static int nvmet_passthru_map_sg(struct nvmet_req *req, struct request *rq) { - int sg_cnt = req->sg_cnt; struct scatterlist *sg; int op_flags = 0; struct bio *bio; int i, ret; + if (req->sg_cnt > BIO_MAX_PAGES) + return -EINVAL; + if (req->cmd->common.opcode == nvme_cmd_flush) op_flags = REQ_FUA; else if (nvme_is_write(req->cmd)) op_flags = REQ_SYNC | REQ_IDLE; - bio = bio_alloc(GFP_KERNEL, min(sg_cnt, BIO_MAX_PAGES)); + bio = bio_alloc(GFP_KERNEL, req->sg_cnt); bio->bi_end_io = bio_put; bio->bi_opf = req_op(rq) | op_flags; @@ -201,7 +210,6 @@ static int nvmet_passthru_map_sg(struct nvmet_req *req, struct request *rq) bio_put(bio); return -EINVAL; } - sg_cnt--; } ret = blk_rq_append_bio(rq, &bio); @@ -236,7 +244,7 @@ static void nvmet_passthru_execute_cmd(struct nvmet_req *req) q = ns->queue; } - rq = nvme_alloc_request(q, req->cmd, BLK_MQ_REQ_NOWAIT, NVME_QID_ANY); + rq = nvme_alloc_request(q, req->cmd, 0, NVME_QID_ANY); if (IS_ERR(rq)) { status = NVME_SC_INTERNAL; goto out_put_ns; |