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Commit 45e3d3ee authored by Sage Weil's avatar Sage Weil
Browse files

ceph: avoid inode lookup on nfs fh reconnect 



If we get the inode from the MDS, we have a reference in req; don't do a
fresh lookup.

Signed-off-by: default avatarSage Weil <sage@newdream.net>
parent 3c454cf2

fs/ceph/export.c

+6 −2
Original line number Diff line number Diff line
@@ -107,8 +107,10 @@ static struct dentry *__fh_to_dentry(struct super_block *sb, 
		req->r_ino1 = vino;

		req->r_num_caps = 1;

		err = ceph_mdsc_do_request(mdsc, NULL, req);

		inode = req->r_target_inode;

		if (inode)

			igrab(inode);

		ceph_mdsc_put_request(req);

		inode = ceph_find_inode(sb, vino);

		if (!inode)

			return ERR_PTR(-ESTALE);

	}
@@ -163,8 +165,10 @@ static struct dentry *__cfh_to_dentry(struct super_block *sb, 
		snprintf(req->r_path2, 16, "%d", cfh->parent_name_hash);

		req->r_num_caps = 1;

		err = ceph_mdsc_do_request(mdsc, NULL, req);

		inode = req->r_target_inode;

		if (inode)

			igrab(inode);

		ceph_mdsc_put_request(req);

		inode = ceph_find_inode(sb, vino);

		if (!inode)

			return ERR_PTR(err ? err : -ESTALE);

	}