From: Theodore Ts'o <tytso@mit.edu>
Date: Wed, 13 Dec 2000 17:55:49 +0000 (+0000)
Subject: ChangeLog, closefs.c, ext2fs.h, jump.funcs:
X-Git-Tag: E2FSPROGS-1_20~196
X-Git-Url: https://git.whamcloud.com/?a=commitdiff_plain;h=3fe973b3068f68bb9d3ea6ba309dc7d2df30301f;p=tools%2Fe2fsprogs.git

ChangeLog, closefs.c, ext2fs.h, jump.funcs:
  closefs.c (ext2fs_update_fs_dynamic_rev): New function suggested by
  	Andreas Dilger to update the filesystem revision to EXT2_DYNAMIC_REV.
---

diff --git a/lib/ext2fs/ChangeLog b/lib/ext2fs/ChangeLog
index 1bdfaff..fb92e08 100644
--- a/lib/ext2fs/ChangeLog
+++ b/lib/ext2fs/ChangeLog
@@ -1,5 +1,9 @@
 2000-12-13  Theodore Ts'o  <tytso@valinux.com>
 
+	* closefs.c (ext2fs_update_fs_dynamic_rev): New function suggested
+		by Andreas Dilger to update the filesystem revision to
+		EXT2_DYNAMIC_REV.
+
 	* swapfs.c (ext2fs_swap_super): Add byte swapping for the journal
 		fields.
 
diff --git a/lib/ext2fs/closefs.c b/lib/ext2fs/closefs.c
index 8ca6b47..b9700cd 100644
--- a/lib/ext2fs/closefs.c
+++ b/lib/ext2fs/closefs.c
@@ -106,6 +106,23 @@ static errcode_t write_primary_superblock(ext2_filsys fs,
 }
 
 
+/*
+ * Updates the revision to EXT2_DYNAMIC_REV
+ */
+void ext2fs_update_fs_dynamic_rev(ext2_filsys fs)
+{
+	struct ext2_super_block *sb = fs->super;
+
+	if (sb->s_rev_level > EXT2_GOOD_OLD_REV)
+		return;
+
+	sb->s_rev_level = EXT2_DYNAMIC_REV;
+	sb->s_first_ino = EXT2_GOOD_OLD_FIRST_INO;
+	sb->s_inode_size = EXT2_GOOD_OLD_INODE_SIZE;
+	/* s_uuid is handled by e2fsck already */
+	/* other fields should be left alone */
+}
+
 errcode_t ext2fs_flush(ext2_filsys fs)
 {
 	dgrp_t		i,j,maxgroup,sgrp;
diff --git a/lib/ext2fs/dll/jump.funcs b/lib/ext2fs/dll/jump.funcs
index cc7acaa..2a18e8f 100644
--- a/lib/ext2fs/dll/jump.funcs
+++ b/lib/ext2fs/dll/jump.funcs
@@ -173,3 +173,4 @@
 00000000 T _ext2fs_read_bb_FILE2		libext2fs	read_bb_file
 00000000 T _ext2fs_write_bb_FILE		libext2fs	write_bb_file
 00000000 T _ext2fs_badblocks_equal		libext2fs	badblocks
+00000000 T _ext2fs_update_fs_dynamic_rev	libext2fs	closefs
diff --git a/lib/ext2fs/ext2fs.h b/lib/ext2fs/ext2fs.h
index 3c428dc..bde3826 100644
--- a/lib/ext2fs/ext2fs.h
+++ b/lib/ext2fs/ext2fs.h
@@ -646,6 +646,7 @@ extern errcode_t ext2fs_check_desc(ext2_filsys fs);
 extern errcode_t ext2fs_close(ext2_filsys fs);
 extern errcode_t ext2fs_flush(ext2_filsys fs);
 extern int ext2fs_bg_has_super(ext2_filsys fs, int group_block);
+extern void ext2fs_update_fs_dynamic_rev(ext2_filsys fs);
 
 /* cmp_bitmaps.c */
 extern errcode_t ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1,