From f57ce87d3f081ad2fefc52faa8f602a98f244094 Mon Sep 17 00:00:00 2001 From: SF Markus Elfring Date: Sun, 2 Nov 2014 15:20:59 +0100 Subject: [PATCH] ceph, rbd: delete unnecessary checks before two function calls The functions ceph_put_snap_context() and iput() test whether their argument is NULL and then return immediately. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring [idryomov@redhat.com: squashed rbd.c hunk, changelog] Signed-off-by: Ilya Dryomov --- drivers/block/rbd.c | 3 +-- fs/ceph/caps.c | 3 +-- fs/ceph/mds_client.c | 6 ++---- fs/ceph/snap.c | 9 +++------ 4 files changed, 7 insertions(+), 14 deletions(-) diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index 27b71a0b72d09..3c34ab55537c5 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -3405,8 +3405,7 @@ err_rq: if (result) rbd_warn(rbd_dev, "%s %llx at %llx result %d", obj_op_name(op_type), length, offset, result); - if (snapc) - ceph_put_snap_context(snapc); + ceph_put_snap_context(snapc); blk_end_request_all(rq, result); } diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c index cefca661464b9..eb1bf1f35e0e9 100644 --- a/fs/ceph/caps.c +++ b/fs/ceph/caps.c @@ -3137,8 +3137,7 @@ flush_cap_releases: done: mutex_unlock(&session->s_mutex); done_unlocked: - if (inode) - iput(inode); + iput(inode); return; bad: diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c index 5a47ed760e6d4..fc74617069a33 100644 --- a/fs/ceph/mds_client.c +++ b/fs/ceph/mds_client.c @@ -524,8 +524,7 @@ void ceph_mdsc_release_request(struct kref *kref) } if (req->r_locked_dir) ceph_put_cap_refs(ceph_inode(req->r_locked_dir), CEPH_CAP_PIN); - if (req->r_target_inode) - iput(req->r_target_inode); + iput(req->r_target_inode); if (req->r_dentry) dput(req->r_dentry); if (req->r_old_dentry) @@ -1066,8 +1065,7 @@ out: session->s_cap_iterator = NULL; spin_unlock(&session->s_cap_lock); - if (last_inode) - iput(last_inode); + iput(last_inode); if (old_cap) ceph_put_cap(session->s_mdsc, old_cap); diff --git a/fs/ceph/snap.c b/fs/ceph/snap.c index f01645a27752b..c1cc993225e3e 100644 --- a/fs/ceph/snap.c +++ b/fs/ceph/snap.c @@ -365,8 +365,7 @@ static int build_snap_context(struct ceph_snap_realm *realm) realm->ino, realm, snapc, snapc->seq, (unsigned int) snapc->num_snaps); - if (realm->cached_context) - ceph_put_snap_context(realm->cached_context); + ceph_put_snap_context(realm->cached_context); realm->cached_context = snapc; return 0; @@ -590,15 +589,13 @@ static void queue_realm_cap_snaps(struct ceph_snap_realm *realm) if (!inode) continue; spin_unlock(&realm->inodes_with_caps_lock); - if (lastinode) - iput(lastinode); + iput(lastinode); lastinode = inode; ceph_queue_cap_snap(ci); spin_lock(&realm->inodes_with_caps_lock); } spin_unlock(&realm->inodes_with_caps_lock); - if (lastinode) - iput(lastinode); + iput(lastinode); list_for_each_entry(child, &realm->children, child_item) { dout("queue_realm_cap_snaps %p %llx queue child %p %llx\n", -- 2.39.5