mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-25 13:43:55 +08:00
NVMe: queue usage fixes in nvme-scsi
Fixes nvme queue usages in scsi-to-nvme translation code to not get a queue more often than it is being put, and not use the queue in an unsafe way without it being locked. Signed-off-by: Keith Busch <keith.busch@intel.com> Acked-by: Vishal Verma <vishal.l.verma@linux.intel.com> Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
This commit is contained in:
parent
564a232c05
commit
14385de117
@ -2039,7 +2039,7 @@ static int nvme_trans_do_nvme_io(struct nvme_ns *ns, struct sg_io_hdr *hdr,
|
||||
int res = SNTI_TRANSLATION_SUCCESS;
|
||||
int nvme_sc;
|
||||
struct nvme_dev *dev = ns->dev;
|
||||
struct nvme_queue *nvmeq = get_nvmeq(ns->dev);
|
||||
struct nvme_queue *nvmeq;
|
||||
u32 num_cmds;
|
||||
struct nvme_iod *iod;
|
||||
u64 unit_len;
|
||||
@ -2653,7 +2653,8 @@ static int nvme_trans_start_stop(struct nvme_ns *ns, struct sg_io_hdr *hdr,
|
||||
{
|
||||
int res = SNTI_TRANSLATION_SUCCESS;
|
||||
int nvme_sc;
|
||||
struct nvme_queue *nvmeq = get_nvmeq(ns->dev);
|
||||
struct nvme_queue *nvmeq;
|
||||
struct nvme_command c;
|
||||
u8 immed, pcmod, pc, no_flush, start;
|
||||
|
||||
immed = GET_U8_FROM_CDB(cmd, START_STOP_UNIT_CDB_IMMED_OFFSET);
|
||||
@ -2675,8 +2676,14 @@ static int nvme_trans_start_stop(struct nvme_ns *ns, struct sg_io_hdr *hdr,
|
||||
} else {
|
||||
if (no_flush == 0) {
|
||||
/* Issue NVME FLUSH command prior to START STOP UNIT */
|
||||
nvme_sc = nvme_submit_flush_data(nvmeq, ns);
|
||||
memset(&c, 0, sizeof(c));
|
||||
c.common.opcode = nvme_cmd_flush;
|
||||
c.common.nsid = cpu_to_le32(ns->ns_id);
|
||||
|
||||
nvmeq = get_nvmeq(ns->dev);
|
||||
put_nvmeq(nvmeq);
|
||||
nvme_sc = nvme_submit_sync_cmd(nvmeq, &c, NULL, NVME_IO_TIMEOUT);
|
||||
|
||||
res = nvme_trans_status_code(hdr, nvme_sc);
|
||||
if (res)
|
||||
goto out;
|
||||
@ -2698,9 +2705,17 @@ static int nvme_trans_synchronize_cache(struct nvme_ns *ns,
|
||||
{
|
||||
int res = SNTI_TRANSLATION_SUCCESS;
|
||||
int nvme_sc;
|
||||
struct nvme_queue *nvmeq = get_nvmeq(ns->dev);
|
||||
struct nvme_command c;
|
||||
struct nvme_queue *nvmeq;
|
||||
|
||||
memset(&c, 0, sizeof(c));
|
||||
c.common.opcode = nvme_cmd_flush;
|
||||
c.common.nsid = cpu_to_le32(ns->ns_id);
|
||||
|
||||
nvmeq = get_nvmeq(ns->dev);
|
||||
put_nvmeq(nvmeq);
|
||||
nvme_sc = nvme_submit_flush_data(nvmeq, ns);
|
||||
nvme_sc = nvme_submit_sync_cmd(nvmeq, &c, NULL, NVME_IO_TIMEOUT);
|
||||
|
||||
res = nvme_trans_status_code(hdr, nvme_sc);
|
||||
if (res)
|
||||
goto out;
|
||||
|
Loading…
Reference in New Issue
Block a user