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| author | Jeff Layton <jlayton@kernel.org> | 2021-06-09 14:09:52 -0400 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@gmail.com> | 2021-06-29 00:15:52 +0200 |
| commit | 7e65624d32b6e0429b1d3559e5585657f34f74a1 (patch) | |
| tree | 65f0d6eb81fd2e14e9e1e7311dd82db4a04b0421 /fs | |
| parent | df2c0cb7f8e8c83e495260ad86df8c5da947f2a7 (diff) | |
| download | linux-7e65624d32b6e0429b1d3559e5585657f34f74a1.tar.gz linux-7e65624d32b6e0429b1d3559e5585657f34f74a1.tar.bz2 linux-7e65624d32b6e0429b1d3559e5585657f34f74a1.zip | |
ceph: allow ceph_put_mds_session to take NULL or ERR_PTR
...to simplify some error paths.
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Luis Henriques <lhenriques@suse.de>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/ceph/dir.c | 3 | ||||
| -rw-r--r-- | fs/ceph/inode.c | 6 | ||||
| -rw-r--r-- | fs/ceph/mds_client.c | 6 | ||||
| -rw-r--r-- | fs/ceph/metric.c | 3 |
4 files changed, 8 insertions, 10 deletions
diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c index 9ba79b6531fb..973489dafe91 100644 --- a/fs/ceph/dir.c +++ b/fs/ceph/dir.c @@ -1809,8 +1809,7 @@ static void ceph_d_release(struct dentry *dentry) dentry->d_fsdata = NULL; spin_unlock(&dentry->d_lock); - if (di->lease_session) - ceph_put_mds_session(di->lease_session); + ceph_put_mds_session(di->lease_session); kmem_cache_free(ceph_dentry_cachep, di); } diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c index df0c8a724609..6f43542b3344 100644 --- a/fs/ceph/inode.c +++ b/fs/ceph/inode.c @@ -1154,8 +1154,7 @@ static inline void update_dentry_lease(struct inode *dir, struct dentry *dentry, __update_dentry_lease(dir, dentry, lease, session, from_time, &old_lease_session); spin_unlock(&dentry->d_lock); - if (old_lease_session) - ceph_put_mds_session(old_lease_session); + ceph_put_mds_session(old_lease_session); } /* @@ -1200,8 +1199,7 @@ static void update_dentry_lease_careful(struct dentry *dentry, from_time, &old_lease_session); out_unlock: spin_unlock(&dentry->d_lock); - if (old_lease_session) - ceph_put_mds_session(old_lease_session); + ceph_put_mds_session(old_lease_session); } /* diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c index e5af591d3bd4..ec669634c649 100644 --- a/fs/ceph/mds_client.c +++ b/fs/ceph/mds_client.c @@ -664,6 +664,9 @@ struct ceph_mds_session *ceph_get_mds_session(struct ceph_mds_session *s) void ceph_put_mds_session(struct ceph_mds_session *s) { + if (IS_ERR_OR_NULL(s)) + return; + dout("mdsc put_session %p %d -> %d\n", s, refcount_read(&s->s_ref), refcount_read(&s->s_ref)-1); if (refcount_dec_and_test(&s->s_ref)) { @@ -1438,8 +1441,7 @@ static void __open_export_target_sessions(struct ceph_mds_client *mdsc, for (i = 0; i < mi->num_export_targets; i++) { ts = __open_export_target_session(mdsc, mi->export_targets[i]); - if (!IS_ERR(ts)) - ceph_put_mds_session(ts); + ceph_put_mds_session(ts); } } diff --git a/fs/ceph/metric.c b/fs/ceph/metric.c index 9577c71e645d..5ac151eb0d49 100644 --- a/fs/ceph/metric.c +++ b/fs/ceph/metric.c @@ -311,8 +311,7 @@ void ceph_metric_destroy(struct ceph_client_metric *m) cancel_delayed_work_sync(&m->delayed_work); - if (m->session) - ceph_put_mds_session(m->session); + ceph_put_mds_session(m->session); } #define METRIC_UPDATE_MIN_MAX(min, max, new) \ |