From: liubo <liubo2009@cn.fujitsu.com>
To: Linux Btrfs <linux-btrfs@vger.kernel.org>
Cc: linux-fsdevel <linux-fsdevel@vger.kernel.org>
Subject: [PATCH 1/2] Btrfs: add datacow flag in inode flag
Date: Thu, 03 Mar 2011 16:35:42 +0800 [thread overview]
Message-ID: <4D6F52DE.5080508@cn.fujitsu.com> (raw)
For datacow control, the corresponding inode flags are needed.
This is for the following patch.
Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com>
---
include/linux/fs.h | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 63d069b..bef47ff 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -353,6 +353,8 @@ struct inodes_stat_t {
#define FS_TOPDIR_FL 0x00020000 /* Top of directory hierarchies*/
#define FS_EXTENT_FL 0x00080000 /* Extents */
#define FS_DIRECTIO_FL 0x00100000 /* Use direct i/o */
+#define FS_NOCOW_FL 0x00800000 /* Do not cow file */
+#define FS_COW_FL 0x01000000 /* Cow file */
#define FS_RESERVED_FL 0x80000000 /* reserved for ext2 lib */
#define FS_FL_USER_VISIBLE 0x0003DFFF /* User visible flags */
--
1.6.5.2
next reply other threads:[~2011-03-03 8:35 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-03 8:35 liubo [this message]
2011-03-15 20:26 ` [PATCH 1/2] Btrfs: add datacow flag in inode flag Chris Mason
2011-03-15 20:57 ` Christoph Hellwig
2011-03-15 22:06 ` Andreas Dilger
2011-03-15 23:35 ` Chris Mason
2011-03-16 9:06 ` Amir Goldstein
2011-03-17 2:10 ` liubo
2011-03-17 14:21 ` Chris Mason
2011-03-17 14:37 ` Amir Goldstein
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