From: Qu Wenruo <quwenruo@cn.fujitsu.com>
To: <linux-btrfs@vger.kernel.org>
Cc: Wang Xiaoguang <wangxg.fnst@cn.fujitsu.com>
Subject: [PATCH v4 16/18] btrfs: dedup: add an inode nodedup flag
Date: Thu, 14 Jan 2016 13:57:32 +0800 [thread overview]
Message-ID: <1452751054-2365-17-git-send-email-quwenruo@cn.fujitsu.com> (raw)
In-Reply-To: <1452751054-2365-1-git-send-email-quwenruo@cn.fujitsu.com>
From: Wang Xiaoguang <wangxg.fnst@cn.fujitsu.com>
Introduce BTRFS_INODE_NODEDUP flag, then we can explicitly disable
online data deduplication for specified files.
Signed-off-by: Wang Xiaoguang <wangxg.fnst@cn.fujitsu.com>
---
fs/btrfs/ctree.h | 1 +
fs/btrfs/ioctl.c | 6 +++++-
2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index a68e23d..ddc6ff2 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -2400,6 +2400,7 @@ do { \
#define BTRFS_INODE_NOATIME (1 << 9)
#define BTRFS_INODE_DIRSYNC (1 << 10)
#define BTRFS_INODE_COMPRESS (1 << 11)
+#define BTRFS_INODE_NODEDUP (1 << 12)
#define BTRFS_INODE_ROOT_ITEM_INIT (1 << 31)
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index c18be18..32c3aa2 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -159,7 +159,8 @@ void btrfs_update_iflags(struct inode *inode)
/*
* Inherit flags from the parent inode.
*
- * Currently only the compression flags and the cow flags are inherited.
+ * Currently only the compression flags, the dedup flags and the cow
+ * flags are inherited.
*/
void btrfs_inherit_iflags(struct inode *inode, struct inode *dir)
{
@@ -184,6 +185,9 @@ void btrfs_inherit_iflags(struct inode *inode, struct inode *dir)
BTRFS_I(inode)->flags |= BTRFS_INODE_NODATASUM;
}
+ if (flags & BTRFS_INODE_NODEDUP)
+ BTRFS_I(inode)->flags |= BTRFS_INODE_NODEDUP;
+
btrfs_update_iflags(inode);
}
--
2.7.0
next prev parent reply other threads:[~2016-01-14 6:00 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-14 5:57 [PATCH v4 00/14][For 4.6] Btrfs: Add inband (write time) de-duplication framework Qu Wenruo
2016-01-14 5:57 ` [PATCH v4 01/18] btrfs: dedup: Introduce dedup framework and its header Qu Wenruo
2016-01-14 5:57 ` [PATCH v4 02/18] btrfs: dedup: Introduce function to initialize dedup info Qu Wenruo
2016-01-14 21:33 ` kbuild test robot
2016-01-14 5:57 ` [PATCH v4 03/18] btrfs: dedup: Introduce function to add hash into in-memory tree Qu Wenruo
2016-01-14 5:57 ` [PATCH v4 04/18] btrfs: dedup: Introduce function to remove hash from " Qu Wenruo
2016-01-14 5:57 ` [PATCH v4 05/18] btrfs: delayed-ref: Add support for atomic increasing extent ref Qu Wenruo
2016-01-14 9:56 ` Filipe Manana
2016-01-15 1:16 ` Qu Wenruo
2016-01-20 3:25 ` Qu Wenruo
2016-01-14 5:57 ` [PATCH v4 06/18] btrfs: dedup: Introduce function to search for an existing hash Qu Wenruo
2016-01-14 5:57 ` [PATCH v4 07/18] btrfs: dedup: Implement btrfs_dedup_calc_hash interface Qu Wenruo
2016-01-14 10:08 ` Filipe Manana
2016-01-15 1:41 ` Qu Wenruo
2016-01-14 5:57 ` [PATCH v4 08/18] btrfs: ordered-extent: Add support for dedup Qu Wenruo
2016-01-14 5:57 ` [PATCH v4 09/18] btrfs: dedup: Inband in-memory only de-duplication implement Qu Wenruo
2016-01-14 5:57 ` [PATCH v4 10/18] btrfs: dedup: Add basic tree structure for on-disk dedup method Qu Wenruo
2016-01-14 5:57 ` [PATCH v4 11/18] btrfs: dedup: Introduce interfaces to resume and cleanup dedup info Qu Wenruo
2016-01-14 5:57 ` [PATCH v4 12/18] btrfs: dedup: Add support for on-disk hash search Qu Wenruo
2016-01-14 5:57 ` [PATCH v4 13/18] btrfs: dedup: Add support to delete hash for on-disk backend Qu Wenruo
2016-01-14 10:19 ` Filipe Manana
2016-01-15 1:43 ` Qu Wenruo
2016-01-14 5:57 ` [PATCH v4 14/18] btrfs: dedup: Add support for adding " Qu Wenruo
2016-01-14 5:57 ` [PATCH v4 15/18] btrfs: dedup: Add ioctl for inband deduplication Qu Wenruo
2016-01-14 5:57 ` Qu Wenruo [this message]
2016-01-14 5:57 ` [PATCH v4 17/18] btrfs: dedup: add a property handler for online dedup Qu Wenruo
2016-01-14 9:56 ` Filipe Manana
2016-01-14 19:04 ` Darrick J. Wong
2016-01-15 1:37 ` Qu Wenruo
2016-01-15 9:19 ` Filipe Manana
2016-01-15 9:33 ` Qu Wenruo
2016-01-15 12:36 ` Duncan
2016-01-15 15:22 ` Filipe Manana
2016-01-16 2:53 ` Duncan
2016-01-14 5:57 ` [PATCH v4 18/18] btrfs: dedup: add per-file online dedup control Qu Wenruo
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