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| author | Yan, Zheng <zyan@redhat.com> | 2017-07-03 03:09:10 +0200 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@gmail.com> | 2017-07-07 17:25:14 +0200 |
| commit | 481f001ffa5d8e9d72f8206e92f73ded076eeb30 (patch) | |
| tree | cf3c166e865e9304966c93ea08f914c66dee8350 | |
| parent | ceph: new mount option that specifies fscache uniquifier (diff) | |
| download | linux-481f001ffa5d8e9d72f8206e92f73ded076eeb30.tar.xz linux-481f001ffa5d8e9d72f8206e92f73ded076eeb30.zip | |
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" <zyan@redhat.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
| -rw-r--r-- | fs/ceph/inode.c | 9 |
1 files changed, 7 insertions, 2 deletions
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; } |