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authorIngo Molnar2017-10-23 13:30:47 +0200
committerIngo Molnar2017-10-23 13:30:47 +0200
commitf95b23a112f1a31ea042483540cd907b58d23a5f (patch)
tree3d41d2f8cf1d66ed593deb12f25a30d2905eb077 /fs/ceph/mds_client.c
parentx86/entry: Use SYSCALL_DEFINE() macros for sys_modify_ldt() (diff)
parentx86/unwind: Show function name+offset in ORC error messages (diff)
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Merge branch 'x86/urgent' into x86/asm, to pick up dependent fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'fs/ceph/mds_client.c')
-rw-r--r--fs/ceph/mds_client.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 84edfc60d87a..f23c820daaed 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -734,12 +734,13 @@ static int __choose_mds(struct ceph_mds_client *mdsc,
inode = req->r_inode;
ihold(inode);
} else {
- /* req->r_dentry is non-null for LSSNAP request.
- * fall-thru */
- WARN_ON_ONCE(!req->r_dentry);
+ /* req->r_dentry is non-null for LSSNAP request */
+ rcu_read_lock();
+ inode = get_nonsnap_parent(req->r_dentry);
+ rcu_read_unlock();
+ dout("__choose_mds using snapdir's parent %p\n", inode);
}
- }
- if (!inode && req->r_dentry) {
+ } else if (req->r_dentry) {
/* ignore race with rename; old or new d_parent is okay */
struct dentry *parent;
struct inode *dir;