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nvme: opencode revalidate_disk in nvme_validate_ns 

Keep control in the NVMe driver instead of going through an indirect
call back into ->revalidate_disk.  Also reorder the function a bit to be
easier to follow with the additional code.

And now that we have removed all callers of revalidate_disk() in the nvme
code, ->revalidate_disk is only called from the open code when first
opening the device.  Which is of course totally pointless as we have
a valid size since the initial scan, and will get an updated view
through the asynchronous notifiation everytime the size changes.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2020-09-01 17:57:45 +02:00 committed by Jens Axboe
parent b8086d3f5a
commit b55d3d21a0
1 changed files with 10 additions and 6 deletions
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16
drivers/nvme/host/core.c
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@ -2352,7 +2352,6 @@ static const struct block_device_operations nvme_fops = {
.open = nvme_open,
.release = nvme_release,
.getgeo = nvme_getgeo,
.revalidate_disk= nvme_revalidate_disk,
.report_zones = nvme_report_zones,
.pr_ops = &nvme_pr_ops,
};
@ -4053,14 +4052,19 @@ static void nvme_ns_remove_by_nsid(struct nvme_ctrl *ctrl, u32 nsid)
static void nvme_validate_ns(struct nvme_ctrl *ctrl, unsigned nsid)
{
struct nvme_ns *ns;
int ret;
ns = nvme_find_get_ns(ctrl, nsid);
if (ns) {
if (revalidate_disk(ns->disk))
nvme_ns_remove(ns);
nvme_put_ns(ns);
} else
if (!ns) {
nvme_alloc_ns(ctrl, nsid);
return;
}
ret = nvme_revalidate_disk(ns->disk);
revalidate_disk_size(ns->disk, ret == 0);
if (ret)
nvme_ns_remove(ns);
nvme_put_ns(ns);
}
static void nvme_remove_invalid_namespaces(struct nvme_ctrl *ctrl,