diff options
| author | Christoph Hellwig <hch@lst.de> | 2021-05-19 10:17:06 +0300 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2021-06-03 10:29:26 +0300 |
| commit | 8b4fb0f968ffe73f619c06cb4040ecaa60327098 (patch) | |
| tree | bc7d69a9c0d0f49645e059d2e41af54d88e79ea1 /drivers/nvme/host/multipath.c | |
| parent | d8ca66e82191a9a95926f7f129028bd362202d5d (diff) | |
| download | linux-8b4fb0f968ffe73f619c06cb4040ecaa60327098.tar.xz | |
nvme: split nvme_report_zones
Split multipath support out of nvme_report_zones into a separate helper
and simplify the non-multipath version as a result.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Diffstat (limited to 'drivers/nvme/host/multipath.c')
| -rw-r--r-- | drivers/nvme/host/multipath.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/drivers/nvme/host/multipath.c b/drivers/nvme/host/multipath.c index f81871c7128a..127a17b4c13d 100644 --- a/drivers/nvme/host/multipath.c +++ b/drivers/nvme/host/multipath.c @@ -349,6 +349,25 @@ static void nvme_ns_head_release(struct gendisk *disk, fmode_t mode) nvme_put_ns_head(disk->private_data); } +#ifdef CONFIG_BLK_DEV_ZONED +static int nvme_ns_head_report_zones(struct gendisk *disk, sector_t sector, + unsigned int nr_zones, report_zones_cb cb, void *data) +{ + struct nvme_ns_head *head = disk->private_data; + struct nvme_ns *ns; + int srcu_idx, ret = -EWOULDBLOCK; + + srcu_idx = srcu_read_lock(&head->srcu); + ns = nvme_find_path(head); + if (ns) + ret = nvme_ns_report_zones(ns, sector, nr_zones, cb, data); + srcu_read_unlock(&head->srcu, srcu_idx); + return ret; +} +#else +#define nvme_ns_head_report_zones NULL +#endif /* CONFIG_BLK_DEV_ZONED */ + const struct block_device_operations nvme_ns_head_ops = { .owner = THIS_MODULE, .submit_bio = nvme_ns_head_submit_bio, @@ -356,7 +375,7 @@ const struct block_device_operations nvme_ns_head_ops = { .release = nvme_ns_head_release, .ioctl = nvme_ns_head_ioctl, .getgeo = nvme_getgeo, - .report_zones = nvme_report_zones, + .report_zones = nvme_ns_head_report_zones, .pr_ops = &nvme_pr_ops, }; |