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-rw-r--r--fs/ext3/resize.c82
1 files changed, 49 insertions, 33 deletions
diff --git a/fs/ext3/resize.c b/fs/ext3/resize.c
index 34b39e9a1e5..5e1337fd878 100644
--- a/fs/ext3/resize.c
+++ b/fs/ext3/resize.c
@@ -8,7 +8,6 @@
* This could probably be made into a module, because it is not often in use.
*/
-#include <linux/config.h>
#define EXT3FS_DEBUG
@@ -28,16 +27,16 @@ static int verify_group_input(struct super_block *sb,
{
struct ext3_sb_info *sbi = EXT3_SB(sb);
struct ext3_super_block *es = sbi->s_es;
- unsigned start = le32_to_cpu(es->s_blocks_count);
- unsigned end = start + input->blocks_count;
+ ext3_fsblk_t start = le32_to_cpu(es->s_blocks_count);
+ ext3_fsblk_t end = start + input->blocks_count;
unsigned group = input->group;
- unsigned itend = input->inode_table + sbi->s_itb_per_group;
+ ext3_fsblk_t itend = input->inode_table + sbi->s_itb_per_group;
unsigned overhead = ext3_bg_has_super(sb, group) ?
(1 + ext3_bg_num_gdb(sb, group) +
le16_to_cpu(es->s_reserved_gdt_blocks)) : 0;
- unsigned metaend = start + overhead;
+ ext3_fsblk_t metaend = start + overhead;
struct buffer_head *bh = NULL;
- int free_blocks_count;
+ ext3_grpblk_t free_blocks_count;
int err = -EINVAL;
input->free_blocks_count = free_blocks_count =
@@ -64,7 +63,8 @@ static int verify_group_input(struct super_block *sb,
ext3_warning(sb, __FUNCTION__, "Bad blocks count %u",
input->blocks_count);
else if (!(bh = sb_bread(sb, end - 1)))
- ext3_warning(sb, __FUNCTION__, "Cannot read last block (%u)",
+ ext3_warning(sb, __FUNCTION__,
+ "Cannot read last block ("E3FSBLK")",
end - 1);
else if (outside(input->block_bitmap, start, end))
ext3_warning(sb, __FUNCTION__,
@@ -77,7 +77,7 @@ static int verify_group_input(struct super_block *sb,
else if (outside(input->inode_table, start, end) ||
outside(itend - 1, start, end))
ext3_warning(sb, __FUNCTION__,
- "Inode table not in group (blocks %u-%u)",
+ "Inode table not in group (blocks %u-"E3FSBLK")",
input->inode_table, itend - 1);
else if (input->inode_bitmap == input->block_bitmap)
ext3_warning(sb, __FUNCTION__,
@@ -85,24 +85,27 @@ static int verify_group_input(struct super_block *sb,
input->block_bitmap);
else if (inside(input->block_bitmap, input->inode_table, itend))
ext3_warning(sb, __FUNCTION__,
- "Block bitmap (%u) in inode table (%u-%u)",
+ "Block bitmap (%u) in inode table (%u-"E3FSBLK")",
input->block_bitmap, input->inode_table, itend-1);
else if (inside(input->inode_bitmap, input->inode_table, itend))
ext3_warning(sb, __FUNCTION__,
- "Inode bitmap (%u) in inode table (%u-%u)",
+ "Inode bitmap (%u) in inode table (%u-"E3FSBLK")",
input->inode_bitmap, input->inode_table, itend-1);
else if (inside(input->block_bitmap, start, metaend))
ext3_warning(sb, __FUNCTION__,
- "Block bitmap (%u) in GDT table (%u-%u)",
+ "Block bitmap (%u) in GDT table"
+ " ("E3FSBLK"-"E3FSBLK")",
input->block_bitmap, start, metaend - 1);
else if (inside(input->inode_bitmap, start, metaend))
ext3_warning(sb, __FUNCTION__,
- "Inode bitmap (%u) in GDT table (%u-%u)",
+ "Inode bitmap (%u) in GDT table"
+ " ("E3FSBLK"-"E3FSBLK")",
input->inode_bitmap, start, metaend - 1);
else if (inside(input->inode_table, start, metaend) ||
inside(itend - 1, start, metaend))
ext3_warning(sb, __FUNCTION__,
- "Inode table (%u-%u) overlaps GDT table (%u-%u)",
+ "Inode table (%u-"E3FSBLK") overlaps"
+ "GDT table ("E3FSBLK"-"E3FSBLK")",
input->inode_table, itend - 1, start, metaend - 1);
else
err = 0;
@@ -112,7 +115,7 @@ static int verify_group_input(struct super_block *sb,
}
static struct buffer_head *bclean(handle_t *handle, struct super_block *sb,
- unsigned long blk)
+ ext3_fsblk_t blk)
{
struct buffer_head *bh;
int err;
@@ -163,15 +166,14 @@ static int setup_new_group_blocks(struct super_block *sb,
struct ext3_new_group_data *input)
{
struct ext3_sb_info *sbi = EXT3_SB(sb);
- unsigned long start = input->group * sbi->s_blocks_per_group +
- le32_to_cpu(sbi->s_es->s_first_data_block);
+ ext3_fsblk_t start = ext3_group_first_block_no(sb, input->group);
int reserved_gdb = ext3_bg_has_super(sb, input->group) ?
le16_to_cpu(sbi->s_es->s_reserved_gdt_blocks) : 0;
unsigned long gdblocks = ext3_bg_num_gdb(sb, input->group);
struct buffer_head *bh;
handle_t *handle;
- unsigned long block;
- int bit;
+ ext3_fsblk_t block;
+ ext3_grpblk_t bit;
int i;
int err = 0, err2;
@@ -328,7 +330,7 @@ static unsigned ext3_list_backups(struct super_block *sb, unsigned *three,
static int verify_reserved_gdb(struct super_block *sb,
struct buffer_head *primary)
{
- const unsigned long blk = primary->b_blocknr;
+ const ext3_fsblk_t blk = primary->b_blocknr;
const unsigned long end = EXT3_SB(sb)->s_groups_count;
unsigned three = 1;
unsigned five = 5;
@@ -340,7 +342,8 @@ static int verify_reserved_gdb(struct super_block *sb,
while ((grp = ext3_list_backups(sb, &three, &five, &seven)) < end) {
if (le32_to_cpu(*p++) != grp * EXT3_BLOCKS_PER_GROUP(sb) + blk){
ext3_warning(sb, __FUNCTION__,
- "reserved GDT %ld missing grp %d (%ld)",
+ "reserved GDT "E3FSBLK
+ " missing grp %d ("E3FSBLK")",
blk, grp,
grp * EXT3_BLOCKS_PER_GROUP(sb) + blk);
return -EINVAL;
@@ -372,7 +375,7 @@ static int add_new_gdb(handle_t *handle, struct inode *inode,
struct super_block *sb = inode->i_sb;
struct ext3_super_block *es = EXT3_SB(sb)->s_es;
unsigned long gdb_num = input->group / EXT3_DESC_PER_BLOCK(sb);
- unsigned long gdblock = EXT3_SB(sb)->s_sbh->b_blocknr + 1 + gdb_num;
+ ext3_fsblk_t gdblock = EXT3_SB(sb)->s_sbh->b_blocknr + 1 + gdb_num;
struct buffer_head **o_group_desc, **n_group_desc;
struct buffer_head *dind;
int gdbackups;
@@ -417,7 +420,7 @@ static int add_new_gdb(handle_t *handle, struct inode *inode,
data = (__u32 *)dind->b_data;
if (le32_to_cpu(data[gdb_num % EXT3_ADDR_PER_BLOCK(sb)]) != gdblock) {
ext3_warning(sb, __FUNCTION__,
- "new group %u GDT block %lu not reserved",
+ "new group %u GDT block "E3FSBLK" not reserved",
input->group, gdblock);
err = -EINVAL;
goto exit_dind;
@@ -515,7 +518,7 @@ static int reserve_backup_gdb(handle_t *handle, struct inode *inode,
struct buffer_head **primary;
struct buffer_head *dind;
struct ext3_iloc iloc;
- unsigned long blk;
+ ext3_fsblk_t blk;
__u32 *data, *end;
int gdbackups = 0;
int res, i;
@@ -540,7 +543,8 @@ static int reserve_backup_gdb(handle_t *handle, struct inode *inode,
for (res = 0; res < reserved_gdb; res++, blk++) {
if (le32_to_cpu(*data) != blk) {
ext3_warning(sb, __FUNCTION__,
- "reserved block %lu not at offset %ld",
+ "reserved block "E3FSBLK
+ " not at offset %ld",
blk, (long)(data - (__u32 *)dind->b_data));
err = -EINVAL;
goto exit_bh;
@@ -902,15 +906,16 @@ exit_put:
* GDT blocks are reserved to grow to the desired size.
*/
int ext3_group_extend(struct super_block *sb, struct ext3_super_block *es,
- unsigned long n_blocks_count)
+ ext3_fsblk_t n_blocks_count)
{
- unsigned long o_blocks_count;
+ ext3_fsblk_t o_blocks_count;
unsigned long o_groups_count;
- unsigned long last;
- int add;
+ ext3_grpblk_t last;
+ ext3_grpblk_t add;
struct buffer_head * bh;
handle_t *handle;
- int err, freed_blocks;
+ int err;
+ unsigned long freed_blocks;
/* We don't need to worry about locking wrt other resizers just
* yet: we're going to revalidate es->s_blocks_count after
@@ -919,12 +924,22 @@ int ext3_group_extend(struct super_block *sb, struct ext3_super_block *es,
o_groups_count = EXT3_SB(sb)->s_groups_count;
if (test_opt(sb, DEBUG))
- printk(KERN_DEBUG "EXT3-fs: extending last group from %lu to %lu blocks\n",
+ printk(KERN_DEBUG "EXT3-fs: extending last group from "E3FSBLK" uto "E3FSBLK" blocks\n",
o_blocks_count, n_blocks_count);
if (n_blocks_count == 0 || n_blocks_count == o_blocks_count)
return 0;
+ if (n_blocks_count > (sector_t)(~0ULL) >> (sb->s_blocksize_bits - 9)) {
+ printk(KERN_ERR "EXT3-fs: filesystem on %s:"
+ " too large to resize to %lu blocks safely\n",
+ sb->s_id, n_blocks_count);
+ if (sizeof(sector_t) < 8)
+ ext3_warning(sb, __FUNCTION__,
+ "CONFIG_LBD not enabled\n");
+ return -EINVAL;
+ }
+
if (n_blocks_count < o_blocks_count) {
ext3_warning(sb, __FUNCTION__,
"can't shrink FS - resize aborted");
@@ -948,7 +963,8 @@ int ext3_group_extend(struct super_block *sb, struct ext3_super_block *es,
if (o_blocks_count + add < n_blocks_count)
ext3_warning(sb, __FUNCTION__,
- "will only finish group (%lu blocks, %u new)",
+ "will only finish group ("E3FSBLK
+ " blocks, %u new)",
o_blocks_count + add, add);
/* See if the device is actually as big as what was requested */
@@ -991,10 +1007,10 @@ int ext3_group_extend(struct super_block *sb, struct ext3_super_block *es,
ext3_journal_dirty_metadata(handle, EXT3_SB(sb)->s_sbh);
sb->s_dirt = 1;
unlock_super(sb);
- ext3_debug("freeing blocks %ld through %ld\n", o_blocks_count,
+ ext3_debug("freeing blocks %lu through "E3FSBLK"\n", o_blocks_count,
o_blocks_count + add);
ext3_free_blocks_sb(handle, sb, o_blocks_count, add, &freed_blocks);
- ext3_debug("freed blocks %ld through %ld\n", o_blocks_count,
+ ext3_debug("freed blocks "E3FSBLK" through "E3FSBLK"\n", o_blocks_count,
o_blocks_count + add);
if ((err = ext3_journal_stop(handle)))
goto exit_put;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-22 02:28:59 +0000