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author | Christoph Hellwig <hch@lst.de> | 2022-07-13 07:40:25 +0200 |
---|---|---|
committer | Jens Axboe <axboe@kernel.dk> | 2022-08-02 17:22:53 -0600 |
commit | 1e4ea66af1db4fde5988b6ed43341872a17e390d (patch) | |
tree | 9930e86138eba0bc3a471a0ab166a58f71f23f33 /drivers/nvme | |
parent | 1a893c2bfef46ac447eead8ea7afe417942be237 (diff) | |
download | linux-1e4ea66af1db4fde5988b6ed43341872a17e390d.tar.gz linux-1e4ea66af1db4fde5988b6ed43341872a17e390d.tar.bz2 linux-1e4ea66af1db4fde5988b6ed43341872a17e390d.zip |
nvme: factor out a nvme_ns_is_readonly helper
Add a little helper to check if a namespace should be marked read-only
that uses a new is_readonly flag in the nvme_ns_info structure.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Javier González <javier.gonz@samsung.com>
Reviewed-by: Joel Granados <j.granados@samsung.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/nvme')
-rw-r--r-- | drivers/nvme/host/core.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index 833891754b33..e993015e6515 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -36,6 +36,7 @@ struct nvme_ns_info { u32 nsid; __le32 anagrpid; bool is_shared; + bool is_readonly; bool is_ready; }; @@ -1447,6 +1448,7 @@ static int nvme_ns_info_from_identify(struct nvme_ctrl *ctrl, return ret; info->anagrpid = id->anagrpid; info->is_shared = id->nmic & NVME_NS_NMIC_SHARED; + info->is_readonly = id->nsattr & NVME_NS_ATTR_RO; info->is_ready = true; if (ctrl->quirks & NVME_QUIRK_BOGUS_NID) { dev_info(ctrl->device, @@ -1482,6 +1484,7 @@ static int nvme_ns_info_from_id_cs_indep(struct nvme_ctrl *ctrl, if (!ret) { info->anagrpid = id->anagrpid; info->is_shared = id->nmic & NVME_NS_NMIC_SHARED; + info->is_readonly = id->nsattr & NVME_NS_ATTR_RO; info->is_ready = id->nstat & NVME_NSTAT_NRDY; } kfree(id); @@ -1909,6 +1912,11 @@ static void nvme_update_disk_info(struct gendisk *disk, ns->ctrl->max_zeroes_sectors); } +static bool nvme_ns_is_readonly(struct nvme_ns *ns, struct nvme_ns_info *info) +{ + return info->is_readonly || test_bit(NVME_NS_FORCE_RO, &ns->flags); +} + static inline bool nvme_first_scan(struct gendisk *disk) { /* nvme_alloc_ns() scans the disk prior to adding it */ @@ -1974,8 +1982,7 @@ static int nvme_update_ns_info_block(struct nvme_ns *ns, } } - set_disk_ro(ns->disk, (id->nsattr & NVME_NS_ATTR_RO) || - test_bit(NVME_NS_FORCE_RO, &ns->flags)); + set_disk_ro(ns->disk, nvme_ns_is_readonly(ns, info)); set_bit(NVME_NS_READY, &ns->flags); blk_mq_unfreeze_queue(ns->disk->queue); @@ -1988,9 +1995,7 @@ static int nvme_update_ns_info_block(struct nvme_ns *ns, if (nvme_ns_head_multipath(ns->head)) { blk_mq_freeze_queue(ns->head->disk->queue); nvme_update_disk_info(ns->head->disk, ns, id); - set_disk_ro(ns->head->disk, - (id->nsattr & NVME_NS_ATTR_RO) || - test_bit(NVME_NS_FORCE_RO, &ns->flags)); + set_disk_ro(ns->head->disk, nvme_ns_is_readonly(ns, info)); nvme_mpath_revalidate_paths(ns); blk_stack_limits(&ns->head->disk->queue->limits, &ns->queue->limits, 0); |