[PATCH 1/4] ceph: don't reach into request header for readdir info

[Jeff Layton <jlayton@kernel.org>]

We already have a pointer to the argument struct in req->r_args. Use that
instead of groveling around in the ceph_mds_request_head.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
---
 fs/ceph/inode.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index 9b85d86d8efb..93633cb4a905 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -1594,8 +1594,7 @@ int ceph_readdir_prepopulate(struct ceph_mds_request *req,
 	struct dentry *dn;
 	struct inode *in;
 	int err = 0, skipped = 0, ret, i;
-	struct ceph_mds_request_head *rhead = req->r_request->front.iov_base;
-	u32 frag = le32_to_cpu(rhead->args.readdir.frag);
+	u32 frag = le32_to_cpu(req->r_args.readdir.frag);
 	u32 last_hash = 0;
 	u32 fpos_offset;
 	struct ceph_readdir_cache_control cache_ctl = {};
@@ -1612,7 +1611,7 @@ int ceph_readdir_prepopulate(struct ceph_mds_request *req,
 		} else if (rinfo->offset_hash) {
 			/* mds understands offset_hash */
 			WARN_ON_ONCE(req->r_readdir_offset != 2);
-			last_hash = le32_to_cpu(rhead->args.readdir.offset_hash);
+			last_hash = le32_to_cpu(req->r_args.readdir.offset_hash);
 		}
 	}
 
-- 
2.29.2