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authorDenis Vlasenko2006-12-26 01:25:48 +0000
committerDenis Vlasenko2006-12-26 01:25:48 +0000
commit64c54025842f205ad722675105b88044a5b6845a (patch)
tree9b5361a46d9174b8c4c12947b006acbca33dc24c /e2fsprogs/ext2fs/sparse.c
parentd63c3a032ade4d7a1953031d787eed044811b78c (diff)
downloadbusybox-64c54025842f205ad722675105b88044a5b6845a.zip
busybox-64c54025842f205ad722675105b88044a5b6845a.tar.gz
remove e2fsprogs. Nobody volunteered to clean up that mess
Diffstat (limited to 'e2fsprogs/ext2fs/sparse.c')
-rw-r--r--e2fsprogs/ext2fs/sparse.c79
1 files changed, 0 insertions, 79 deletions
diff --git a/e2fsprogs/ext2fs/sparse.c b/e2fsprogs/ext2fs/sparse.c
deleted file mode 100644
index b3d3071..0000000
--- a/e2fsprogs/ext2fs/sparse.c
+++ /dev/null
@@ -1,79 +0,0 @@
-/* vi: set sw=4 ts=4: */
-/*
- * sparse.c --- find the groups in an ext2 filesystem with metadata backups
- *
- * Copyright (C) 1993, 1994, 1995, 1996 Theodore Ts'o.
- * Copyright (C) 2002 Andreas Dilger.
- *
- * %Begin-Header%
- * This file may be redistributed under the terms of the GNU Public
- * License.
- * %End-Header%
- */
-
-#include <stdio.h>
-
-#include "ext2_fs.h"
-#include "ext2fsP.h"
-
-static int test_root(int a, int b)
-{
- if (a == 0)
- return 1;
- while (1) {
- if (a == 1)
- return 1;
- if (a % b)
- return 0;
- a = a / b;
- }
-}
-
-int ext2fs_bg_has_super(ext2_filsys fs, int group_block)
-{
- if (!(fs->super->s_feature_ro_compat &
- EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER))
- return 1;
-
- if (test_root(group_block, 3) || (test_root(group_block, 5)) ||
- test_root(group_block, 7))
- return 1;
-
- return 0;
-}
-
-/*
- * Iterate through the groups which hold BACKUP superblock/GDT copies in an
- * ext3 filesystem. The counters should be initialized to 1, 5, and 7 before
- * calling this for the first time. In a sparse filesystem it will be the
- * sequence of powers of 3, 5, and 7: 1, 3, 5, 7, 9, 25, 27, 49, 81, ...
- * For a non-sparse filesystem it will be every group: 1, 2, 3, 4, ...
- */
-unsigned int ext2fs_list_backups(ext2_filsys fs, unsigned int *three,
- unsigned int *five, unsigned int *seven)
-{
- unsigned int *min = three;
- int mult = 3;
- unsigned int ret;
-
- if (!(fs->super->s_feature_ro_compat &
- EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER)) {
- ret = *min;
- *min += 1;
- return ret;
- }
-
- if (*five < *min) {
- min = five;
- mult = 5;
- }
- if (*seven < *min) {
- min = seven;
- mult = 7;
- }
-
- ret = *min;
- *min *= mult;
-
- return ret;
-}