linux-ext4 - [PATCH 3/7 v2] ext4: add physical block and status member into extent status tree

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Fri, 11 Jan 2013 18:53:43 +0800
From:	Zheng Liu <gnehzuil.liu@...il.com>
To:	linux-ext4@...r.kernel.org
Cc:	Jan kara <jack@...e.cz>, "Theodore Ts'o" <tytso@....edu>,
	Zheng Liu <wenqing.lz@...bao.com>
Subject: [PATCH 3/7 v2] ext4: add physical block and status member into extent status tree

From: Zheng Liu <wenqing.lz@...bao.com>

es_pblk is used to record physical block that maps to the disk.  es_status is
used to record the status of the extent.  Three status are defined, which are
written, unwritten and delayed.

CC: Jan kara <jack@...e.cz>
CC: "Theodore Ts'o" <tytso@....edu>
Signed-off-by: Zheng Liu <wenqing.lz@...bao.com>
---
 fs/ext4/extents_status.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/fs/ext4/extents_status.h b/fs/ext4/extents_status.h
index 81e9339..85115bb 100644
--- a/fs/ext4/extents_status.h
+++ b/fs/ext4/extents_status.h
@@ -20,10 +20,18 @@
 #define es_debug(fmt, ...)	no_printk(fmt, ##__VA_ARGS__)
 #endif
 
+enum {
+	EXTENT_STATUS_WRITTEN = 0,	/* written extent */
+	EXTENT_STATUS_UNWRITTEN = 1,	/* unwritten extent */
+	EXTENT_STATUS_DELAYED = 2,	/* delayed extent */
+};
+
 struct extent_status {
 	struct rb_node rb_node;
 	ext4_lblk_t es_lblk;	/* first logical block extent covers */
 	ext4_lblk_t es_len;	/* length of extent in block */
+	ext4_fsblk_t es_pblk;	/* first physical block */
+	int es_status;		/* record the status of extent */
 };
 
 struct ext4_es_tree {
-- 
1.7.12.rc2.18.g61b472e

--
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html