From: Jianpeng Ma <jianpeng.ma@intel.com>
Date: Wed, 7 Jan 2015 07:28:37 +0000 (+0800)
Subject: common: Don't call ioctl(BTRFS_IOC_SYNC) in sync_filesystem.
X-Git-Tag: v0.92~25^2~1
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=397b261630dccc656f6eca509f4c70173c8d8d8f;p=ceph.git

common: Don't call ioctl(BTRFS_IOC_SYNC) in sync_filesystem.

From the manual of syncfs, it first appeared in Linux 2.6.39. At this
point, btrfs didn't as a stable production. So remove this.

Signed-off-by: Jianpeng Ma <jianpeng.ma@intel.com>
---

diff --git a/src/common/sync_filesystem.h b/src/common/sync_filesystem.h
index 49283b3e0aef..b7eaea71e0ed 100644
--- a/src/common/sync_filesystem.h
+++ b/src/common/sync_filesystem.h
@@ -48,11 +48,6 @@ inline int sync_filesystem(int fd)
     return -errno;
 #endif
 
-#ifdef BTRFS_IOC_SYNC
-  if (::ioctl(fd, BTRFS_IOC_SYNC) == 0)
-    return 0;
-#endif
-
   sync();
   return 0;
 }