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| author | Yehuda Sadeh <yehuda@hq.newdream.net> | 2011-01-18 13:37:28 -0800 |
|---|---|---|
| committer | Sage Weil <sage@newdream.net> | 2011-02-19 19:59:14 -0800 |
| commit | 97d79b403ef03f729883246208ef5d8a2ebc4d68 (patch) | |
| tree | 6badfd07e1ae880bd30f99dfb55227d3210b6e3a | |
| parent | e8e1ba96b207deba1339b09983f8b29f92cb1497 (diff) | |
| download | linux-97d79b403ef03f729883246208ef5d8a2ebc4d68.tar.gz linux-97d79b403ef03f729883246208ef5d8a2ebc4d68.tar.bz2 linux-97d79b403ef03f729883246208ef5d8a2ebc4d68.zip | |
ceph: keep reference to parent inode on ceph_dentry
When creating a new dentry we now hold a reference to the parent
inode in the ceph_dentry. This is required due to the new RCU
changes from 949854d0, which set dentry->d_parent to NULL in d_kill before
calling the ->release() callback. If/when that behavior is changed, we can
revert this hack.
Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>
| -rw-r--r-- | fs/ceph/dir.c | 5 | ||||
| -rw-r--r-- | fs/ceph/super.h | 1 |
2 files changed, 5 insertions, 1 deletions
diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c index 562f9884a4d9..6bfaa6a4ec47 100644 --- a/fs/ceph/dir.c +++ b/fs/ceph/dir.c @@ -60,6 +60,7 @@ int ceph_init_dentry(struct dentry *dentry) } di->dentry = dentry; di->lease_session = NULL; + di->parent_inode = igrab(dentry->d_parent->d_inode); dentry->d_fsdata = di; dentry->d_time = jiffies; ceph_dentry_lru_add(dentry); @@ -1025,7 +1026,7 @@ static void ceph_dentry_release(struct dentry *dentry) u64 snapid = CEPH_NOSNAP; if (!IS_ROOT(dentry)) { - parent_inode = dentry->d_parent->d_inode; + parent_inode = di->parent_inode; if (parent_inode) snapid = ceph_snap(parent_inode); } @@ -1050,6 +1051,8 @@ static void ceph_dentry_release(struct dentry *dentry) kmem_cache_free(ceph_dentry_cachep, di); dentry->d_fsdata = NULL; } + if (parent_inode) + iput(parent_inode); } static int ceph_snapdir_d_revalidate(struct dentry *dentry, diff --git a/fs/ceph/super.h b/fs/ceph/super.h index 6e0826695112..c01aa646b407 100644 --- a/fs/ceph/super.h +++ b/fs/ceph/super.h @@ -207,6 +207,7 @@ struct ceph_dentry_info { struct dentry *dentry; u64 time; u64 offset; + struct inode *parent_inode; }; struct ceph_inode_xattrs_info { |