From 844d87c3329980e2b1849cf53205d7fa965d8995 Mon Sep 17 00:00:00 2001 From: Sage Weil Date: Tue, 5 Feb 2013 13:40:09 -0800 Subject: [PATCH] ceph: do not assume r_old_dentry[_dir] always set together Do not assume that r_old_dentry implies that r_old_dentry_dir is also true. Separate out the ref cleanup and make the debugs dump behave when it is NULL. Signed-off-by: Sage Weil Reviewed-by: Yan, Zheng --- fs/ceph/debugfs.c | 3 ++- fs/ceph/mds_client.c | 7 ++++--- 2 files changed, 6 insertions(+), 4 deletions(-) diff --git a/fs/ceph/debugfs.c b/fs/ceph/debugfs.c index 6d59006bfa27..8c6f313db3ea 100644 --- a/fs/ceph/debugfs.c +++ b/fs/ceph/debugfs.c @@ -102,7 +102,8 @@ static int mdsc_show(struct seq_file *s, void *p) path = NULL; spin_lock(&req->r_old_dentry->d_lock); seq_printf(s, " #%llx/%.*s (%s)", - ceph_ino(req->r_old_dentry_dir), + req->r_old_dentry_dir ? + ceph_ino(req->r_old_dentry_dir) : 0, req->r_old_dentry->d_name.len, req->r_old_dentry->d_name.name, path ? path : ""); diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c index f4f050a69a48..f260bd8d61cd 100644 --- a/fs/ceph/mds_client.c +++ b/fs/ceph/mds_client.c @@ -528,7 +528,9 @@ void ceph_mdsc_release_request(struct kref *kref) iput(req->r_target_inode); if (req->r_dentry) dput(req->r_dentry); - if (req->r_old_dentry) { + if (req->r_old_dentry) + dput(req->r_old_dentry); + if (req->r_old_dentry_dir) { /* * track (and drop pins for) r_old_dentry_dir * separately, since r_old_dentry's d_parent may have @@ -537,7 +539,6 @@ void ceph_mdsc_release_request(struct kref *kref) */ ceph_put_cap_refs(ceph_inode(req->r_old_dentry_dir), CEPH_CAP_PIN); - dput(req->r_old_dentry); iput(req->r_old_dentry_dir); } kfree(req->r_path1); @@ -2053,7 +2054,7 @@ int ceph_mdsc_do_request(struct ceph_mds_client *mdsc, ceph_get_cap_refs(ceph_inode(req->r_inode), CEPH_CAP_PIN); if (req->r_locked_dir) ceph_get_cap_refs(ceph_inode(req->r_locked_dir), CEPH_CAP_PIN); - if (req->r_old_dentry) + if (req->r_old_dentry_dir) ceph_get_cap_refs(ceph_inode(req->r_old_dentry_dir), CEPH_CAP_PIN); -- 2.20.1