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ceph: explicitly reference rename old_dentry parent dir in request

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We carry a pin on the parent directory for the rename source and dest
dentries.  For the source it's r_locked_dir; we need to explicitly
reference the old_dentry parent as well, since the dentry's d_parent may
change between when the request was created and pinned and when it is
freed.

Reviewed-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>
This commit is contained in:
Sage Weil
2011-07-26 11:31:14 -07:00
parent 4f17726452
commit 41b02e1f9b
4 changed files with 17 additions and 11 deletions
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2
fs/ceph/debugfs.c
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@@ -102,7 +102,7 @@ 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->d_parent->d_inode),
ceph_ino(req->r_old_dentry_dir),
req->r_old_dentry->d_name.len,
req->r_old_dentry->d_name.name,
path ? path : "");