* Copyright (C) 1997, 1998 by Theodore Ts'o and
* PowerQuest, Inc.
*
- * Copyright (C) 1999, 2000 by Theosore Ts'o
+ * Copyright (C) 1999, 2000 by Theodore Ts'o
*
* %Begin-Header%
* This file may be redistributed under the terms of the GNU Public
return blk == ext2fs_inode_bitmap_loc(fs, grp);
}
-static inline int is_inode_tb(ext2_filsys fs, unsigned int grp, blk64_t blk)
+static int is_inode_tb(ext2_filsys fs, unsigned int grp, blk64_t blk)
{
return blk >= ext2fs_inode_table_loc(fs, grp) &&
blk < (ext2fs_inode_table_loc(fs, grp) +
fs->inode_blocks_per_group);
}
-/* Some bigalloc helper macros which are more succint... */
+/* Some bigalloc helper macros which are more succinct... */
#define B2C(x) EXT2FS_B2C(fs, (x))
#define C2B(x) EXT2FS_C2B(fs, (x))
#define EQ_CLSTR(x, y) (B2C(x) == B2C(y))
goto errout;
print_resource_track(rfs, &rtrack, fs->io);
+ retval = clear_sparse_super2_last_group(rfs);
+ if (retval)
+ goto errout;
+
init_resource_track(&rtrack, "calculate_summary_stats", fs->io);
retval = ext2fs_calculate_summary_stats(rfs->new_fs);
if (retval)
goto errout;
print_resource_track(rfs, &rtrack, fs->io);
- retval = clear_sparse_super2_last_group(rfs);
- if (retval)
- goto errout;
-
retval = ext2fs_set_gdt_csum(rfs->new_fs);
if (retval)
goto errout;
copy_size = EXT2_DESC_SIZE(rfs->new_fs->super);
for (i = 0; i < rfs->old_fs->group_desc_count; i++) {
memcpy(n, o, copy_size);
- n += EXT2_DESC_SIZE(rfs->new_fs->super);
- o += EXT2_DESC_SIZE(rfs->old_fs->super);
+ n = (char *)n + EXT2_DESC_SIZE(rfs->new_fs->super);
+ o = (char *)o + EXT2_DESC_SIZE(rfs->old_fs->super);
}
ext2fs_free_mem(&rfs->new_fs->group_desc);
if (!(rfs->flags & (RESIZE_DISABLE_64BIT | RESIZE_ENABLE_64BIT)))
return 0;
- if (fs->super->s_creator_os != EXT2_OS_LINUX)
+ if (fs->super->s_creator_os == EXT2_OS_HURD)
return 0;
retval = ext2fs_open_inode_scan(fs, 0, &scan);
}
/*
- * Clean up the bitmaps for unitialized bitmaps
+ * Clean up the bitmaps for uninitialized bitmaps
*/
static void fix_uninit_block_bitmaps(ext2_filsys fs)
{
blk64_t blk, lblk;
dgrp_t g;
- int i;
+ unsigned int i;
if (!ext2fs_has_group_desc_csum(fs))
return;
ext2fs_mark_block_bitmap2(fs->block_map,
ext2fs_inode_bitmap_loc(fs, g));
for (i = 0, blk = ext2fs_inode_table_loc(fs, g);
- i < (unsigned int) fs->inode_blocks_per_group;
+ i < fs->inode_blocks_per_group;
i++, blk++)
ext2fs_mark_block_bitmap2(fs->block_map, blk);
}
ext2_filsys old_fs,
dgrp_t group)
{
- blk64_t blk;
- int j;
- dgrp_t i;
+ blk64_t blk;
+ unsigned int j;
+ dgrp_t i;
ext2fs_block_bitmap bg_map = NULL;
- errcode_t retval = 0;
- dgrp_t count = old_fs->group_desc_count - fs->group_desc_count;
+ errcode_t retval = 0;
+ dgrp_t count = old_fs->group_desc_count - fs->group_desc_count;
/* If bigalloc, don't free metadata living in the same cluster */
if (EXT2FS_CLUSTER_RATIO(fs) > 1) {
blk64_t old_numblocks, numblocks, adjblocks;
unsigned long i, j, old_desc_blocks;
unsigned int meta_bg, meta_bg_size;
- int has_super, csum_flag;
+ int has_super, csum_flag, has_bg;
unsigned long long new_inodes; /* u64 to check for overflow */
double percent;
*/
overhead = (int) (2 + fs->inode_blocks_per_group);
- if (ext2fs_bg_has_super(fs, fs->group_desc_count - 1))
+ has_bg = 0;
+ if (ext2fs_has_feature_sparse_super2(fs->super)) {
+ /*
+ * We have to do this manually since
+ * super->s_backup_bgs hasn't been set up yet.
+ */
+ if (fs->group_desc_count == 2)
+ has_bg = fs->super->s_backup_bgs[0] != 0;
+ else
+ has_bg = fs->super->s_backup_bgs[1] != 0;
+ } else
+ has_bg = ext2fs_bg_has_super(fs, fs->group_desc_count - 1);
+ if (has_bg)
overhead += 1 + fs->desc_blocks +
fs->super->s_reserved_gdt_blocks;
*/
new_inodes =(unsigned long long) fs->super->s_inodes_per_group * fs->group_desc_count;
if (new_inodes > ~0U) {
- fprintf(stderr, _("inodes (%llu) must be less than %u"),
+ fprintf(stderr, _("inodes (%llu) must be less than %u\n"),
new_inodes, ~0U);
return EXT2_ET_TOO_MANY_INODES;
}
if (last_bg > old_last_bg) {
if (old_fs->group_desc_count == 1)
fs->super->s_backup_bgs[0] = 1;
- if (old_fs->group_desc_count == 1 &&
- fs->super->s_backup_bgs[0])
- fs->super->s_backup_bgs[0] = last_bg;
- else if (fs->super->s_backup_bgs[1])
+ if ((old_fs->group_desc_count < 3 &&
+ fs->group_desc_count > 2) ||
+ fs->super->s_backup_bgs[1])
fs->super->s_backup_bgs[1] = last_bg;
} else if (last_bg < old_last_bg) {
if (fs->super->s_backup_bgs[0] > last_bg)
group_block = ext2fs_group_first_block2(fs,
old_fs->group_desc_count);
csum_flag = ext2fs_has_group_desc_csum(fs);
- if (!getenv("RESIZE2FS_FORCE_ITABLE_INIT") &&
- access("/sys/fs/ext4/features/lazy_itable_init", F_OK) == 0)
+ if (getenv("RESIZE2FS_FORCE_LAZY_ITABLE_INIT") ||
+ (!getenv("RESIZE2FS_FORCE_ITABLE_INIT") &&
+ access("/sys/fs/ext4/features/lazy_itable_init", F_OK) == 0))
lazy_itable_init = 1;
if (ext2fs_has_feature_meta_bg(fs->super))
old_desc_blocks = fs->super->s_first_meta_bg;
/*
* If we changed the number of block_group descriptor blocks,
* we need to make sure they are all marked as reserved in the
- * file systems's block allocation map.
+ * filesystem's block allocation map.
*/
for (i = 0; i < old_fs->group_desc_count; i++)
ext2fs_reserve_super_and_bgd(fs, i, fs->block_map);
*/
static errcode_t blocks_to_move(ext2_resize_t rfs)
{
- int j, has_super;
+ unsigned int j;
+ int has_super;
dgrp_t i, max_groups, g;
blk64_t blk, group_blk;
blk64_t old_blocks, new_blocks, group_end, cluster_freed;
/*
* For those structures that have changed, we need to
- * do bookkeepping.
+ * do bookkeeping.
*/
if (ext2fs_block_bitmap_loc(old_fs, i) !=
(blk = ext2fs_block_bitmap_loc(fs, i))) {
{
ext2_resize_t rfs = (ext2_resize_t) fs->priv_data;
blk64_t blk;
+ int group;
blk = get_new_block(rfs);
if (!blk)
ext2fs_mark_block_bitmap2(rfs->old_fs->block_map, blk);
ext2fs_mark_block_bitmap2(rfs->new_fs->block_map, blk);
+
+ group = ext2fs_group_of_blk2(rfs->old_fs, blk);
+ ext2fs_clear_block_uninit(rfs->old_fs, group);
+ group = ext2fs_group_of_blk2(rfs->new_fs, blk);
+ ext2fs_clear_block_uninit(rfs->new_fs, group);
+
*ret = (blk64_t) blk;
return 0;
}
ext2_filsys fs = rfs->new_fs;
ext2_filsys old_fs = rfs->old_fs;
errcode_t retval;
- __u64 size;
- int c;
+ __u64 c, size;
int to_move, moved;
ext2_badblocks_list badblock_list = 0;
int bb_modified = 0;
errcode_t err = 0;
/* No EA block or no remapping? Quit early. */
- if (ext2fs_file_acl_block(rfs->old_fs, inode) == 0 && !rfs->bmap)
+ if (ext2fs_file_acl_block(rfs->old_fs, inode) == 0 || !rfs->bmap)
return 0;
new_block = extent_translate(rfs->old_fs, rfs->bmap,
ext2fs_file_acl_block(rfs->old_fs, inode));
{
}
+static int fix_ea_entries(ext2_extent imap, struct ext2_ext_attr_entry *entry,
+ struct ext2_ext_attr_entry *end, ext2_ino_t last_ino)
+{
+ int modified = 0;
+ ext2_ino_t new_ino;
+
+ while (entry < end && !EXT2_EXT_IS_LAST_ENTRY(entry)) {
+ if (entry->e_value_inum > last_ino) {
+ new_ino = ext2fs_extent_translate(imap,
+ entry->e_value_inum);
+ entry->e_value_inum = new_ino;
+ modified = 1;
+ }
+ entry = EXT2_EXT_ATTR_NEXT(entry);
+ }
+ return modified;
+}
+
+static int fix_ea_ibody_entries(ext2_extent imap,
+ struct ext2_inode_large *inode, int inode_size,
+ ext2_ino_t last_ino)
+{
+ struct ext2_ext_attr_entry *start, *end;
+ __u32 *ea_magic;
+
+ if (inode->i_extra_isize == 0)
+ return 0;
+
+ ea_magic = (__u32 *)((char *)inode + EXT2_GOOD_OLD_INODE_SIZE +
+ inode->i_extra_isize);
+ if (*ea_magic != EXT2_EXT_ATTR_MAGIC)
+ return 0;
+
+ start = (struct ext2_ext_attr_entry *)(ea_magic + 1);
+ end = (struct ext2_ext_attr_entry *)((char *)inode + inode_size);
+
+ return fix_ea_entries(imap, start, end, last_ino);
+}
+
+static int fix_ea_block_entries(ext2_extent imap, char *block_buf,
+ unsigned int blocksize, ext2_ino_t last_ino)
+{
+ struct ext2_ext_attr_header *header;
+ struct ext2_ext_attr_entry *start, *end;
+
+ header = (struct ext2_ext_attr_header *)block_buf;
+ start = (struct ext2_ext_attr_entry *)(header+1);
+ end = (struct ext2_ext_attr_entry *)(block_buf + blocksize);
+
+ return fix_ea_entries(imap, start, end, last_ino);
+}
+
+/* A simple LRU cache to check recently processed blocks. */
+struct blk_cache {
+ int cursor;
+ blk64_t blks[4];
+};
+
+#define BLK_IN_CACHE(b,c) ((b) == (c).blks[0] || (b) == (c).blks[1] || \
+ (b) == (c).blks[2] || (b) == (c).blks[3])
+#define BLK_ADD_CACHE(b,c) { \
+ (c).blks[(c).cursor] = (b); \
+ (c).cursor = ((c).cursor + 1) % 4; \
+}
+
+static errcode_t fix_ea_inode_refs(ext2_resize_t rfs, struct ext2_inode *inode,
+ char *block_buf, ext2_ino_t last_ino)
+{
+ ext2_filsys fs = rfs->new_fs;
+ ext2_inode_scan scan = NULL;
+ ext2_ino_t ino;
+ int inode_size = EXT2_INODE_SIZE(fs->super);
+ blk64_t blk;
+ int modified;
+ struct blk_cache blk_cache;
+ struct ext2_ext_attr_header *header;
+ errcode_t retval;
+
+ memset(&blk_cache, 0, sizeof(blk_cache));
+
+ header = (struct ext2_ext_attr_header *)block_buf;
+
+ retval = ext2fs_open_inode_scan(fs, 0, &scan);
+ if (retval)
+ goto out;
+
+ while (1) {
+ retval = ext2fs_get_next_inode_full(scan, &ino, inode,
+ inode_size);
+ if (retval)
+ goto out;
+ if (!ino)
+ break;
+
+ if (inode->i_links_count == 0 && ino != EXT2_RESIZE_INO)
+ continue; /* inode not in use */
+
+ if (inode_size != EXT2_GOOD_OLD_INODE_SIZE) {
+ modified = fix_ea_ibody_entries(rfs->imap,
+ (struct ext2_inode_large *)inode,
+ inode_size, last_ino);
+ if (modified) {
+ retval = ext2fs_write_inode_full(fs, ino, inode,
+ inode_size);
+ if (retval)
+ goto out;
+ }
+ }
+
+ blk = ext2fs_file_acl_block(fs, inode);
+ if (blk && !BLK_IN_CACHE(blk, blk_cache)) {
+ retval = ext2fs_read_ext_attr3(fs, blk, block_buf, ino);
+ if (retval)
+ goto out;
+
+ modified = fix_ea_block_entries(rfs->imap, block_buf,
+ fs->blocksize,
+ last_ino);
+ if (modified) {
+ retval = ext2fs_write_ext_attr3(fs, blk,
+ block_buf, ino);
+ if (retval)
+ goto out;
+ /*
+ * If refcount is greater than 1, we might see
+ * the same block referenced by other inodes
+ * later.
+ */
+ if (header->h_refcount > 1)
+ BLK_ADD_CACHE(blk, blk_cache);
+ }
+ }
+ }
+ retval = 0;
+out:
+ if (scan)
+ ext2fs_close_inode_scan(scan);
+ return retval;
+
+}
static errcode_t inode_scan_and_fix(ext2_resize_t rfs)
{
struct process_block_struct pb;
char *block_buf = 0;
ext2_ino_t start_to_move;
int inode_size;
+ int update_ea_inode_refs = 0;
if ((rfs->old_fs->group_desc_count <=
rfs->new_fs->group_desc_count) &&
ext2fs_inode_alloc_stats2(rfs->new_fs, new_inode, +1,
pb.is_dir);
- inode->i_ctime = time(0);
+ /*
+ * i_ctime field in xattr inodes contain a portion of the ref
+ * count, do not overwrite.
+ */
+ if (inode->i_flags & EXT4_EA_INODE_FL)
+ update_ea_inode_refs = 1;
+ else
+ inode->i_ctime = time(0);
+
retval = ext2fs_write_inode_full(rfs->old_fs, new_inode,
inode, inode_size);
if (retval)
if (retval)
goto errout;
- /* Rewrite extent block checksums with new inode number */
- if (ext2fs_has_feature_metadata_csum(rfs->old_fs->super) &&
- (inode->i_flags & EXT4_EXTENTS_FL)) {
- rfs->old_fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
- retval = rewrite_extents(rfs->old_fs, new_inode);
- rfs->old_fs->flags &= ~EXT2_FLAG_IGNORE_CSUM_ERRORS;
- if (retval)
- goto errout;
- }
-
/*
* Update inodes to point to new blocks; schedule directory
* blocks for inode remapping. Need to write out dir blocks
* with new inode numbers if we have metadata_csum enabled.
*/
+ rfs->old_fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
if (ext2fs_inode_has_valid_blocks2(rfs->old_fs, inode) &&
(rfs->bmap || pb.is_dir)) {
pb.ino = new_inode;
pb.old_ino = ino;
pb.has_extents = inode->i_flags & EXT4_EXTENTS_FL;
- rfs->old_fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
retval = ext2fs_block_iterate3(rfs->old_fs,
new_inode, 0, block_buf,
process_block, &pb);
- rfs->old_fs->flags &= ~EXT2_FLAG_IGNORE_CSUM_ERRORS;
if (retval)
goto errout;
if (pb.error) {
if (retval)
goto errout;
}
+
+ /* Fix up extent block checksums with the new inode number */
+ if (ext2fs_has_feature_metadata_csum(rfs->old_fs->super) &&
+ (inode->i_flags & EXT4_EXTENTS_FL)) {
+ retval = rewrite_extents(rfs->old_fs, new_inode);
+ if (retval)
+ goto errout;
+ }
+ }
+
+ if (update_ea_inode_refs &&
+ ext2fs_has_feature_ea_inode(rfs->new_fs->super)) {
+ retval = fix_ea_inode_refs(rfs, inode, block_buf,
+ start_to_move);
+ if (retval)
+ goto errout;
}
io_channel_flush(rfs->old_fs->io);
errout:
reset_com_err_hook();
+ rfs->old_fs->flags &= ~EXT2_FLAG_IGNORE_CSUM_ERRORS;
if (rfs->bmap) {
ext2fs_free_extent_table(rfs->bmap);
rfs->bmap = 0;
char *cp;
blk64_t old_blk, new_blk, blk, cluster_freed;
errcode_t retval;
- int j, to_move, moved;
+ int to_move, moved;
+ unsigned int j;
ext2fs_block_bitmap new_bmap = NULL;
max_groups = fs->group_desc_count;
fs->super->s_backup_bgs[1] == old_last_bg)
return 0;
+ if (old_last_bg == 0)
+ return 0;
+
retval = ext2fs_super_and_bgd_loc2(rfs->old_fs, old_last_bg,
&sb, &old_desc, NULL, &num);
if (retval)
/*
- * calcluate the minimum number of blocks the given fs can be resized to
+ * calculate the minimum number of blocks the given fs can be resized to
*/
blk64_t calculate_minimum_resize_size(ext2_filsys fs, int flags)
{
#endif
/*
- * if we need more group descriptors in order to accomodate our data
+ * if we need more group descriptors in order to accommodate our data
* then we need to add them here
*/
blks_needed = data_needed;
projects / thirdparty / e2fsprogs.git / blobdiff