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  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:	Thu, 11 Aug 2011 11:28:23 +0800
From:	Yongqiang Yang <xiaoqiangnk@...il.com>
To:	linux-ext4@...r.kernel.org
Cc:	aedilger@...il.com, tytso@....edu,
	Yongqiang Yang <xiaoqiangnk@...il.com>
Subject: [PATCH 08/13] ext4: add a function which sets up a flex groups each time

This patch adds a function named ext4_setup_new_descs() which sets up
a flex groups each time.

Signed-off-by: Yongqiang Yang <xiaoqiangnk@...il.com>
---
 fs/ext4/resize.c |   25 +++++++++++++++++++++++--
 1 files changed, 23 insertions(+), 2 deletions(-)

diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index 7e91d58..5939b62 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -1114,7 +1114,8 @@ static int ext4_add_new_descs(handle_t *handle, struct super_block *sb,
  * @sb: super block
  */
 static int ext4_setup_new_desc(handle_t *handle, struct super_block *sb,
-			       struct ext4_new_group_data *input)
+			       struct ext4_new_group_data *input,
+			       __u16 bg_flags)
 {
 	struct ext4_sb_info *sbi = EXT4_SB(sb);
 	ext4_group_t group;
@@ -1143,7 +1144,7 @@ static int ext4_setup_new_desc(handle_t *handle, struct super_block *sb,
 	ext4_inode_table_set(sb, gdp, input->inode_table); /* LV FIXME */
 	ext4_free_blks_set(sb, gdp, input->free_blocks_count);
 	ext4_free_inodes_set(sb, gdp, EXT4_INODES_PER_GROUP(sb));
-	gdp->bg_flags = cpu_to_le16(EXT4_BG_INODE_ZEROED);
+	gdp->bg_flags = cpu_to_le16(bg_flags);
 	gdp->bg_checksum = ext4_group_desc_csum(sbi, input->group, gdp);
 
 	err = ext4_handle_dirty_metadata(handle, NULL, gdb_bh);
@@ -1162,6 +1163,26 @@ static int ext4_setup_new_desc(handle_t *handle, struct super_block *sb,
 }
 
 /*
+ * ext4_setup_new_descs setups group descriptors of a flex groups
+ */
+static int ext4_setup_new_descs(handle_t *handle, struct super_block *sb,
+				struct ext4_new_flex_group_data *flex_gd)
+{
+	struct ext4_new_group_data *group_data = flex_gd->groups;
+	__u16 *bg_flags = flex_gd->bg_flags;
+	int i, err = 0;
+
+	for (i = 0; i < flex_gd->count; i++) {
+		err = ext4_setup_new_desc(handle, sb, group_data + i,
+					  bg_flags[i]);
+		if (err)
+			return err;
+	}
+
+	return err;
+}
+
+/*
  * ext4_update_super() updates super so that new the added group can be seen
  *   by the filesystem.
  *
-- 
1.7.5.1

--
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

Powered by blists - more mailing lists