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| author |   Christoph Hellwig <hch@lst.de> | 2021-05-19 09:02:59 +0200 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2021-06-03 10:29:25 +0300 |
| commit | f423c85cd392241f1521887b1396038cd1e4c68e (patch) | |
| tree | 623607f6496b093f19144aa3b02326af421fdf70 /drivers/nvme/host/ioctl.c | |
| parent | nvme-fabrics: remove extra braces (diff) | |
| download | linux-dev-f423c85cd392241f1521887b1396038cd1e4c68e.tar.xz linux-dev-f423c85cd392241f1521887b1396038cd1e4c68e.zip | |
nvme: open code nvme_put_ns_from_disk in nvme_ns_head_chr_ioctl
nvme_ns_head_chr_ioctl is always used on multipath nodes, so just call
srcu_read_unlock and consolidate the two unlock paths.
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/ioctl.c')
| -rw-r--r-- | drivers/nvme/host/ioctl.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/drivers/nvme/host/ioctl.c b/drivers/nvme/host/ioctl.c index 9557ead02de1..0341767ff2e7 100644 --- a/drivers/nvme/host/ioctl.c +++ b/drivers/nvme/host/ioctl.c @@ -419,21 +419,19 @@ long nvme_ns_head_chr_ioctl(struct file *file, unsigned int cmd, container_of(cdev, struct nvme_ns_head, cdev); void __user *argp = (void __user *)arg; struct nvme_ns *ns; - int srcu_idx, ret; + int srcu_idx, ret = -EWOULDBLOCK; srcu_idx = srcu_read_lock(&head->srcu); ns = nvme_find_path(head); - if (!ns) { - srcu_read_unlock(&head->srcu, srcu_idx); - return -EWOULDBLOCK; - } + if (!ns) + goto out_unlock; if (is_ctrl_ioctl(cmd)) return nvme_ns_head_ctrl_ioctl(ns, cmd, argp, head, srcu_idx); ret = nvme_ns_ioctl(ns, cmd, argp); - nvme_put_ns_from_disk(head, srcu_idx); - +out_unlock: + srcu_read_unlock(&head->srcu, srcu_idx); return ret; } #endif /* CONFIG_NVME_MULTIPATH */ |