From: Sage Weil <sage@newdream.net>
Date: Fri, 16 Apr 2010 19:56:11 +0000 (-0700)
Subject: ceph: clear dir complete on d_move
X-Git-Tag: v2.6.34-rc7~32^2~10
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=c10f5e12bafde7f7a2f9b75d76f7a68d62154e91;p=platform%2Fkernel%2Flinux-3.10.git

ceph: clear dir complete on d_move

d_move() reorders the d_subdirs list, breaking the readdir result caching.
Unless/until d_move preserves that ordering, clear CEPH_I_COMPLETE on
rename.

Signed-off-by: Sage Weil <sage@newdream.net>
---

diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index 26f883c..261f3e6 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -997,6 +997,10 @@ int ceph_fill_trace(struct super_block *sb, struct ceph_mds_request *req,
 			     dn, dn->d_name.len, dn->d_name.name);
 			dout("fill_trace doing d_move %p -> %p\n",
 			     req->r_old_dentry, dn);
+
+			/* d_move screws up d_subdirs order */
+			ceph_i_clear(dir, CEPH_I_COMPLETE);
+
 			d_move(req->r_old_dentry, dn);
 			dout(" src %p '%.*s' dst %p '%.*s'\n",
 			     req->r_old_dentry,