If the file system is being shrunk, and a block group's inode table
falls beyond the end of the inode table, we need to try to relocate
the inode table blocks.
Signed-off-by: "Theodore Ts'o" <tytso@xxxxxxx>
---
resize/resize2fs.c | 24 +++++++++++++++++-------
1 file changed, 17 insertions(+), 7 deletions(-)
diff --git a/resize/resize2fs.c b/resize/resize2fs.c
index 1e4ac19..ec1594e 100644
--- a/resize/resize2fs.c
+++ b/resize/resize2fs.c
@@ -884,24 +884,34 @@ static errcode_t blocks_to_move(ext2_resize_t rfs)
fs = rfs->new_fs;
/*
- * If we're shrinking the filesystem, we need to move any group's
- * bitmaps which are beyond the end of the new filesystem.
+ * If we're shrinking the filesystem, we need to move any
+ * group's metadata blocks (either allocation bitmaps or the
+ * inode table) which are beyond the end of the new
+ * filesystem.
*/
new_size = ext2fs_blocks_count(fs->super);
if (new_size < ext2fs_blocks_count(old_fs->super)) {
for (g = 0; g < fs->group_desc_count; g++) {
+ int realloc = 0;
/*
- * ext2fs_allocate_group_table re-allocates bitmaps
- * which are set to block 0.
+ * ext2fs_allocate_group_table will re-allocate any
+ * metadata blocks whose location is set to zero.
*/
if (ext2fs_block_bitmap_loc(fs, g) >= new_size) {
ext2fs_block_bitmap_loc_set(fs, g, 0);
- retval = ext2fs_allocate_group_table(fs, g, 0);
- if (retval)
- return retval;
+ realloc = 1;
}
if (ext2fs_inode_bitmap_loc(fs, g) >= new_size) {
ext2fs_inode_bitmap_loc_set(fs, g, 0);
+ realloc = 1;
+ }
+ if ((ext2fs_inode_table_loc(fs, g) +
+ fs->inode_blocks_per_group) > new_size) {
+ ext2fs_inode_table_loc_set(fs, g, 0);
+ realloc = 1;
+ }
+
+ if (realloc) {
retval = ext2fs_allocate_group_table(fs, g, 0);
if (retval)
return retval;
--
1.7.12.rc0.22.gcdd159b
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