From: Yan, Zheng Date: Mon, 3 Jul 2017 01:09:10 +0000 (+0800) Subject: ceph: update ceph_dentry_info::lease_session when necessary X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=481f001ffa5d8e9d72f8206e92f73ded076eeb30;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git ceph: update ceph_dentry_info::lease_session when necessary Current code does not update ceph_dentry_info::lease_session once it is set. If auth mds of corresponding dentry changes, dentry lease keeps in an invalid state. Signed-off-by: "Yan, Zheng" Reviewed-by: Jeff Layton Signed-off-by: Ilya Dryomov --- diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c index 53f23c920266..220dfd87cbfa 100644 --- a/fs/ceph/inode.c +++ b/fs/ceph/inode.c @@ -1016,6 +1016,7 @@ static void update_dentry_lease(struct dentry *dentry, long unsigned ttl = from_time + (duration * HZ) / 1000; long unsigned half_ttl = from_time + (duration * HZ / 2) / 1000; struct inode *dir; + struct ceph_mds_session *old_lease_session = NULL; /* * Make sure dentry's inode matches tgt_vino. NULL tgt_vino means that @@ -1051,8 +1052,10 @@ static void update_dentry_lease(struct dentry *dentry, time_before(ttl, di->time)) goto out_unlock; /* we already have a newer lease. */ - if (di->lease_session && di->lease_session != session) - goto out_unlock; + if (di->lease_session && di->lease_session != session) { + old_lease_session = di->lease_session; + di->lease_session = NULL; + } ceph_dentry_lru_touch(dentry); @@ -1065,6 +1068,8 @@ static void update_dentry_lease(struct dentry *dentry, di->time = ttl; out_unlock: spin_unlock(&dentry->d_lock); + if (old_lease_session) + ceph_put_mds_session(old_lease_session); return; }