Now ceph don't update atime after read.So add this function.

Signed-off-by: Jianpeng Ma <majianpeng@gmail.com>
---
 fs/ceph/file.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index 656e169..fa74e6f 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -669,6 +669,15 @@ again:
 out:
 	dout("aio_read %p %llx.%llx dropping cap refs on %s = %d\n",
 	     inode, ceph_vinop(inode), ceph_cap_string(got), (int)ret);
+
+	if (ret > 0) {
+		int dirty;
+		spin_lock(&ci->i_ceph_lock);
+		dirty = __ceph_mark_dirty_caps(ci, CEPH_CAP_FILE_RD);
+		spin_unlock(&ci->i_ceph_lock);
+		if (dirty)
+			__mark_inode_dirty(inode, dirty);
+	}
 	ceph_put_cap_refs(ci, got);
 
 	if (checkeof && ret >= 0) {
-- 
1.8.1.2
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