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NFS: If nfs_mountpoint_expiry_timeout < 0, do not expire submounts

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If we set nfs_mountpoint_expiry_timeout to a negative value, then
allow that to imply that we do not expire NFSv4 submounts.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This commit is contained in:
Trond Myklebust 2019-08-21 18:16:28 -04:00
parent a99d8080aa
commit 22a1ae9a93
1 changed files with 3 additions and 0 deletions
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3
fs/nfs/namespace.c
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@ -157,6 +157,9 @@ struct vfsmount *nfs_d_automount(struct path *path)
if (IS_ERR(mnt)) if (IS_ERR(mnt))
goto out; goto out;
if (nfs_mountpoint_expiry_timeout < 0)
goto out;
mntget(mnt); /* prevent immediate expiration */ mntget(mnt); /* prevent immediate expiration */
mnt_set_expiry(mnt, &nfs_automount_list); mnt_set_expiry(mnt, &nfs_automount_list);
schedule_delayed_work(&nfs_automount_task, nfs_mountpoint_expiry_timeout); schedule_delayed_work(&nfs_automount_task, nfs_mountpoint_expiry_timeout);