From: Yunchuan Wen <yunchuanwen@ubuntukylin.com>
Date: Thu, 26 Dec 2013 14:29:27 +0000 (-0800)
Subject: ceph: fscache: Update object store limit after file writing
X-Git-Tag: firefly_0821_release~176^2~3948^2~68
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=32d3e148ddac0087fdd8499ce4075db20518e122;p=firefly-linux-kernel-4.4.55.git

ceph: fscache: Update object store limit after file writing

Synchronize object->store_limit[_l] with new inode->i_size after file writing.

Tested-by: Milosz Tanski <milosz@adfin.com>
Signed-off-by: Yunchuan Wen <yunchuanwen@ubuntukylin.com>
Signed-off-by: Min Chen <minchen@ubuntukylin.com>
Signed-off-by: Li Wang <liwang@ubuntukylin.com>
---

diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index c298a7b8a1ce..2862a75fb949 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -970,6 +970,7 @@ retry_snap:
 			goto retry_snap;
 		}
 	} else {
+		loff_t old_size = inode->i_size;
 		/*
 		 * No need to acquire the i_truncate_mutex. Because
 		 * the MDS revokes Fwb caps before sending truncate
@@ -980,6 +981,8 @@ retry_snap:
 		written = generic_file_buffered_write(iocb, iov, nr_segs,
 						      pos, &iocb->ki_pos,
 						      count, 0);
+		if (inode->i_size > old_size)
+			ceph_fscache_update_objectsize(inode);
 		mutex_unlock(&inode->i_mutex);
 	}