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From: Liu Bo <bo.li.liu@oracle.com>
To: linux-btrfs@vger.kernel.org
Cc: Marcel Ritter <ritter.marcel@gmail.com>,
	Christian Robert <christian.robert@polymtl.ca>,
	<alanqk@gmail.com>,
	Konstantinos Skarlatos <k.skarlatos@gmail.com>,
	David Sterba <dsterba@suse.cz>,
	Martin Steigerwald <Martin@lichtvoll.de>,
	Josef Bacik <jbacik@fb.com>, Chris Mason <clm@fb.com>
Subject: [PATCH v10 04/16] Btrfs: introduce dedup state
Date: Thu, 10 Apr 2014 11:48:34 +0800	[thread overview]
Message-ID: <1397101727-20806-5-git-send-email-bo.li.liu@oracle.com> (raw)
In-Reply-To: <1397101727-20806-1-git-send-email-bo.li.liu@oracle.com>

This introduces dedup state and relative operations to mark and unmark
the dedup data range, it'll be used in later patches.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
---
 fs/btrfs/extent_io.c | 14 ++++++++++++++
 fs/btrfs/extent_io.h |  5 +++++
 2 files changed, 19 insertions(+)

diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index ae69a00..d51487b 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -1296,6 +1296,20 @@ int clear_extent_uptodate(struct extent_io_tree *tree, u64 start, u64 end,
 				cached_state, mask);
 }
 
+int set_extent_dedup(struct extent_io_tree *tree, u64 start, u64 end,
+		     struct extent_state **cached_state, gfp_t mask)
+{
+	return set_extent_bit(tree, start, end, EXTENT_DEDUP, 0,
+			      cached_state, mask);
+}
+
+int clear_extent_dedup(struct extent_io_tree *tree, u64 start, u64 end,
+			  struct extent_state **cached_state, gfp_t mask)
+{
+	return clear_extent_bit(tree, start, end, EXTENT_DEDUP, 0, 0,
+				cached_state, mask);
+}
+
 /*
  * either insert or lock state struct between start and end use mask to tell
  * us if waiting is desired.
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index 58b27e5..897110d 100644
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -20,6 +20,7 @@
 #define EXTENT_NEED_WAIT (1 << 13)
 #define EXTENT_DAMAGED (1 << 14)
 #define EXTENT_NORESERVE (1 << 15)
+#define EXTENT_DEDUP (1 << 16)
 #define EXTENT_IOBITS (EXTENT_LOCKED | EXTENT_WRITEBACK)
 #define EXTENT_CTLBITS (EXTENT_DO_ACCOUNTING | EXTENT_FIRST_DELALLOC)
 
@@ -226,6 +227,10 @@ int set_extent_uptodate(struct extent_io_tree *tree, u64 start, u64 end,
 			struct extent_state **cached_state, gfp_t mask);
 int clear_extent_uptodate(struct extent_io_tree *tree, u64 start, u64 end,
 			  struct extent_state **cached_state, gfp_t mask);
+int set_extent_dedup(struct extent_io_tree *tree, u64 start, u64 end,
+		     struct extent_state **cached_state, gfp_t mask);
+int clear_extent_dedup(struct extent_io_tree *tree, u64 start, u64 end,
+		       struct extent_state **cached_state, gfp_t mask);
 int set_extent_new(struct extent_io_tree *tree, u64 start, u64 end,
 		   gfp_t mask);
 int set_extent_dirty(struct extent_io_tree *tree, u64 start, u64 end,
-- 
1.8.1.4


  parent reply	other threads:[~2014-04-10  3:49 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-04-10  3:48 [RFC PATCH v10 00/16] Online(inband) data deduplication Liu Bo
2014-04-10  3:48 ` [PATCH v10 01/16] Btrfs: disable qgroups accounting when quota_enable is 0 Liu Bo
2014-04-10  3:48 ` [PATCH v10 02/16] Btrfs: introduce dedup tree and relatives Liu Bo
2014-04-10  3:48 ` [PATCH v10 03/16] Btrfs: introduce dedup tree operations Liu Bo
2014-04-10  3:48 ` Liu Bo [this message]
2014-04-10  3:48 ` [PATCH v10 05/16] Btrfs: make ordered extent aware of dedup Liu Bo
2014-04-10  3:48 ` [PATCH v10 06/16] Btrfs: online(inband) data dedup Liu Bo
2014-04-10  3:48 ` [PATCH v10 07/16] Btrfs: skip dedup reference during backref walking Liu Bo
2014-04-10  3:48 ` [PATCH v10 08/16] Btrfs: don't return space for dedup extent Liu Bo
2014-04-10  3:48 ` [PATCH v10 09/16] Btrfs: add ioctl of dedup control Liu Bo
2014-04-10  3:48 ` [PATCH v10 10/16] Btrfs: improve the delayed refs process in rm case Liu Bo
2014-04-10  3:48 ` [PATCH v10 11/16] Btrfs: fix a crash of dedup ref Liu Bo
2014-04-10  3:48 ` [PATCH v10 12/16] Btrfs: fix deadlock of dedup work Liu Bo
2014-04-10  3:48 ` [PATCH v10 13/16] Btrfs: fix transactin abortion in __btrfs_free_extent Liu Bo
2014-04-10  3:48 ` [PATCH v10 14/16] Btrfs: fix wrong pinned bytes " Liu Bo
2014-04-10  3:48 ` [PATCH v10 15/16] Btrfs: use total_bytes instead of bytes_used for global_rsv Liu Bo
2014-04-10  3:48 ` [PATCH v10 16/16] Btrfs: fix dedup enospc problem Liu Bo
2014-04-10  3:48 ` [PATCH v5] Btrfs-progs: add dedup subcommand Liu Bo
2014-04-10  9:08 ` [RFC PATCH v10 00/16] Online(inband) data deduplication Konstantinos Skarlatos
2014-04-10 15:44   ` Liu Bo
2014-04-10 15:55 ` Liu Bo
2014-04-11  9:28   ` Martin Steigerwald
2014-04-11  9:51     ` Liu Bo
2014-04-14  8:41 ` Test results for " Konstantinos Skarlatos

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