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-rw-r--r--fs/ext4/balloc.c50
-rw-r--r--fs/ext4/ialloc.c8
-rw-r--r--fs/ext4/inode.c6
-rw-r--r--fs/ext4/resize.c52
-rw-r--r--fs/ext4/super.c96
-rw-r--r--include/linux/ext4_fs.h86
6 files changed, 201 insertions, 97 deletions
diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
index aa33ff271fa..6887151ccc4 100644
--- a/fs/ext4/balloc.c
+++ b/fs/ext4/balloc.c
@@ -99,12 +99,13 @@ read_block_bitmap(struct super_block *sb, unsigned int block_group)
99 desc = ext4_get_group_desc (sb, block_group, NULL); 99 desc = ext4_get_group_desc (sb, block_group, NULL);
100 if (!desc) 100 if (!desc)
101 goto error_out; 101 goto error_out;
102 bh = sb_bread(sb, le32_to_cpu(desc->bg_block_bitmap)); 102 bh = sb_bread(sb, ext4_block_bitmap(desc));
103 if (!bh) 103 if (!bh)
104 ext4_error (sb, "read_block_bitmap", 104 ext4_error (sb, "read_block_bitmap",
105 "Cannot read block bitmap - " 105 "Cannot read block bitmap - "
106 "block_group = %d, block_bitmap = %u", 106 "block_group = %d, block_bitmap = "E3FSBLK,
107 block_group, le32_to_cpu(desc->bg_block_bitmap)); 107 block_group,
108 ext4_block_bitmap(desc));
108error_out: 109error_out:
109 return bh; 110 return bh;
110} 111}
@@ -432,14 +433,14 @@ void ext4_free_blocks_sb(handle_t *handle, struct super_block *sb,
432 es = sbi->s_es; 433 es = sbi->s_es;
433 if (block < le32_to_cpu(es->s_first_data_block) || 434 if (block < le32_to_cpu(es->s_first_data_block) ||
434 block + count < block || 435 block + count < block ||
435 block + count > le32_to_cpu(es->s_blocks_count)) { 436 block + count > ext4_blocks_count(es)) {
436 ext4_error (sb, "ext4_free_blocks", 437 ext4_error (sb, "ext4_free_blocks",
437 "Freeing blocks not in datazone - " 438 "Freeing blocks not in datazone - "
438 "block = "E3FSBLK", count = %lu", block, count); 439 "block = "E3FSBLK", count = %lu", block, count);
439 goto error_return; 440 goto error_return;
440 } 441 }
441 442
442 ext4_debug ("freeing block(s) %lu-%lu\n", block, block + count - 1); 443 ext4_debug ("freeing block(s) %llu-%llu\n", block, block + count - 1);
443 444
444do_more: 445do_more:
445 overflow = 0; 446 overflow = 0;
@@ -460,12 +461,11 @@ do_more:
460 if (!desc) 461 if (!desc)
461 goto error_return; 462 goto error_return;
462 463
463 if (in_range (le32_to_cpu(desc->bg_block_bitmap), block, count) || 464 if (in_range(ext4_block_bitmap(desc), block, count) ||
464 in_range (le32_to_cpu(desc->bg_inode_bitmap), block, count) || 465 in_range(ext4_inode_bitmap(desc), block, count) ||
465 in_range (block, le32_to_cpu(desc->bg_inode_table), 466 in_range(block, ext4_inode_table(desc), sbi->s_itb_per_group) ||
466 sbi->s_itb_per_group) || 467 in_range(block + count - 1, ext4_inode_table(desc),
467 in_range (block + count - 1, le32_to_cpu(desc->bg_inode_table), 468 sbi->s_itb_per_group))
468 sbi->s_itb_per_group))
469 ext4_error (sb, "ext4_free_blocks", 469 ext4_error (sb, "ext4_free_blocks",
470 "Freeing blocks in system zones - " 470 "Freeing blocks in system zones - "
471 "Block = "E3FSBLK", count = %lu", 471 "Block = "E3FSBLK", count = %lu",
@@ -552,8 +552,8 @@ do_more:
552 bit + i, bitmap_bh->b_data)) { 552 bit + i, bitmap_bh->b_data)) {
553 jbd_unlock_bh_state(bitmap_bh); 553 jbd_unlock_bh_state(bitmap_bh);
554 ext4_error(sb, __FUNCTION__, 554 ext4_error(sb, __FUNCTION__,
555 "bit already cleared for block "E3FSBLK, 555 "bit already cleared for block "E3FSBLK,
556 block + i); 556 (ext4_fsblk_t)(block + i));
557 jbd_lock_bh_state(bitmap_bh); 557 jbd_lock_bh_state(bitmap_bh);
558 BUFFER_TRACE(bitmap_bh, "bit already cleared"); 558 BUFFER_TRACE(bitmap_bh, "bit already cleared");
559 } else { 559 } else {
@@ -1351,7 +1351,7 @@ static int ext4_has_free_blocks(struct ext4_sb_info *sbi)
1351 ext4_fsblk_t free_blocks, root_blocks; 1351 ext4_fsblk_t free_blocks, root_blocks;
1352 1352
1353 free_blocks = percpu_counter_read_positive(&sbi->s_freeblocks_counter); 1353 free_blocks = percpu_counter_read_positive(&sbi->s_freeblocks_counter);
1354 root_blocks = le32_to_cpu(sbi->s_es->s_r_blocks_count); 1354 root_blocks = ext4_r_blocks_count(sbi->s_es);
1355 if (free_blocks < root_blocks + 1 && !capable(CAP_SYS_RESOURCE) && 1355 if (free_blocks < root_blocks + 1 && !capable(CAP_SYS_RESOURCE) &&
1356 sbi->s_resuid != current->fsuid && 1356 sbi->s_resuid != current->fsuid &&
1357 (sbi->s_resgid == 0 || !in_group_p (sbi->s_resgid))) { 1357 (sbi->s_resgid == 0 || !in_group_p (sbi->s_resgid))) {
@@ -1462,7 +1462,7 @@ ext4_fsblk_t ext4_new_blocks(handle_t *handle, struct inode *inode,
1462 * First, test whether the goal block is free. 1462 * First, test whether the goal block is free.
1463 */ 1463 */
1464 if (goal < le32_to_cpu(es->s_first_data_block) || 1464 if (goal < le32_to_cpu(es->s_first_data_block) ||
1465 goal >= le32_to_cpu(es->s_blocks_count)) 1465 goal >= ext4_blocks_count(es))
1466 goal = le32_to_cpu(es->s_first_data_block); 1466 goal = le32_to_cpu(es->s_first_data_block);
1467 ext4_get_group_no_and_offset(sb, goal, &group_no, &grp_target_blk); 1467 ext4_get_group_no_and_offset(sb, goal, &group_no, &grp_target_blk);
1468 goal_group = group_no; 1468 goal_group = group_no;
@@ -1561,12 +1561,12 @@ allocated:
1561 1561
1562 ret_block = grp_alloc_blk + ext4_group_first_block_no(sb, group_no); 1562 ret_block = grp_alloc_blk + ext4_group_first_block_no(sb, group_no);
1563 1563
1564 if (in_range(le32_to_cpu(gdp->bg_block_bitmap), ret_block, num) || 1564 if (in_range(ext4_block_bitmap(gdp), ret_block, num) ||
1565 in_range(le32_to_cpu(gdp->bg_inode_bitmap), ret_block, num) || 1565 in_range(ext4_block_bitmap(gdp), ret_block, num) ||
1566 in_range(ret_block, le32_to_cpu(gdp->bg_inode_table), 1566 in_range(ret_block, ext4_inode_table(gdp),
1567 EXT4_SB(sb)->s_itb_per_group) || 1567 EXT4_SB(sb)->s_itb_per_group) ||
1568 in_range(ret_block + num - 1, le32_to_cpu(gdp->bg_inode_table), 1568 in_range(ret_block + num - 1, ext4_inode_table(gdp),
1569 EXT4_SB(sb)->s_itb_per_group)) 1569 EXT4_SB(sb)->s_itb_per_group))
1570 ext4_error(sb, "ext4_new_block", 1570 ext4_error(sb, "ext4_new_block",
1571 "Allocating block in system zone - " 1571 "Allocating block in system zone - "
1572 "blocks from "E3FSBLK", length %lu", 1572 "blocks from "E3FSBLK", length %lu",
@@ -1604,11 +1604,11 @@ allocated:
1604 jbd_unlock_bh_state(bitmap_bh); 1604 jbd_unlock_bh_state(bitmap_bh);
1605#endif 1605#endif
1606 1606
1607 if (ret_block + num - 1 >= le32_to_cpu(es->s_blocks_count)) { 1607 if (ret_block + num - 1 >= ext4_blocks_count(es)) {
1608 ext4_error(sb, "ext4_new_block", 1608 ext4_error(sb, "ext4_new_block",
1609 "block("E3FSBLK") >= blocks count(%d) - " 1609 "block("E3FSBLK") >= blocks count("E3FSBLK") - "
1610 "block_group = %lu, es == %p ", ret_block, 1610 "block_group = %lu, es == %p ", ret_block,
1611 le32_to_cpu(es->s_blocks_count), group_no, es); 1611 ext4_blocks_count(es), group_no, es);
1612 goto out; 1612 goto out;
1613 } 1613 }
1614 1614
@@ -1707,7 +1707,7 @@ ext4_fsblk_t ext4_count_free_blocks(struct super_block *sb)
1707 brelse(bitmap_bh); 1707 brelse(bitmap_bh);
1708 printk("ext4_count_free_blocks: stored = "E3FSBLK 1708 printk("ext4_count_free_blocks: stored = "E3FSBLK
1709 ", computed = "E3FSBLK", "E3FSBLK"\n", 1709 ", computed = "E3FSBLK", "E3FSBLK"\n",
1710 le32_to_cpu(es->s_free_blocks_count), 1710 EXT4_FREE_BLOCKS_COUNT(es),
1711 desc_count, bitmap_count); 1711 desc_count, bitmap_count);
1712 return bitmap_count; 1712 return bitmap_count;
1713#else 1713#else
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index 94e1bb4abe3..959b7fa8f5d 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -60,12 +60,12 @@ read_inode_bitmap(struct super_block * sb, unsigned long block_group)
60 if (!desc) 60 if (!desc)
61 goto error_out; 61 goto error_out;
62 62
63 bh = sb_bread(sb, le32_to_cpu(desc->bg_inode_bitmap)); 63 bh = sb_bread(sb, ext4_inode_bitmap(desc));
64 if (!bh) 64 if (!bh)
65 ext4_error(sb, "read_inode_bitmap", 65 ext4_error(sb, "read_inode_bitmap",
66 "Cannot read inode bitmap - " 66 "Cannot read inode bitmap - "
67 "block_group = %lu, inode_bitmap = %u", 67 "block_group = %lu, inode_bitmap = %llu",
68 block_group, le32_to_cpu(desc->bg_inode_bitmap)); 68 block_group, ext4_inode_bitmap(desc));
69error_out: 69error_out:
70 return bh; 70 return bh;
71} 71}
@@ -304,7 +304,7 @@ static int find_group_orlov(struct super_block *sb, struct inode *parent)
304 goto fallback; 304 goto fallback;
305 } 305 }
306 306
307 blocks_per_dir = le32_to_cpu(es->s_blocks_count) - freeb; 307 blocks_per_dir = ext4_blocks_count(es) - freeb;
308 sector_div(blocks_per_dir, ndirs); 308 sector_div(blocks_per_dir, ndirs);
309 309
310 max_dirs = ndirs / ngroups + inodes_per_group / 16; 310 max_dirs = ndirs / ngroups + inodes_per_group / 16;
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 9db8cff3baa..effc38afebe 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -2438,8 +2438,8 @@ static ext4_fsblk_t ext4_get_inode_block(struct super_block *sb,
2438 */ 2438 */
2439 offset = ((ino - 1) % EXT4_INODES_PER_GROUP(sb)) * 2439 offset = ((ino - 1) % EXT4_INODES_PER_GROUP(sb)) *
2440 EXT4_INODE_SIZE(sb); 2440 EXT4_INODE_SIZE(sb);
2441 block = le32_to_cpu(gdp[desc].bg_inode_table) + 2441 block = ext4_inode_table(gdp + desc) +
2442 (offset >> EXT4_BLOCK_SIZE_BITS(sb)); 2442 (offset >> EXT4_BLOCK_SIZE_BITS(sb));
2443 2443
2444 iloc->block_group = block_group; 2444 iloc->block_group = block_group;
2445 iloc->offset = offset & (EXT4_BLOCK_SIZE(sb) - 1); 2445 iloc->offset = offset & (EXT4_BLOCK_SIZE(sb) - 1);
@@ -2506,7 +2506,7 @@ static int __ext4_get_inode_loc(struct inode *inode,
2506 goto make_io; 2506 goto make_io;
2507 2507
2508 bitmap_bh = sb_getblk(inode->i_sb, 2508 bitmap_bh = sb_getblk(inode->i_sb,
2509 le32_to_cpu(desc->bg_inode_bitmap)); 2509 ext4_inode_bitmap(desc));
2510 if (!bitmap_bh) 2510 if (!bitmap_bh)
2511 goto make_io; 2511 goto make_io;
2512 2512
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index c60bfed5f5e..3dbf91b8220 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -27,7 +27,7 @@ static int verify_group_input(struct super_block *sb,
27{ 27{
28 struct ext4_sb_info *sbi = EXT4_SB(sb); 28 struct ext4_sb_info *sbi = EXT4_SB(sb);
29 struct ext4_super_block *es = sbi->s_es; 29 struct ext4_super_block *es = sbi->s_es;
30 ext4_fsblk_t start = le32_to_cpu(es->s_blocks_count); 30 ext4_fsblk_t start = ext4_blocks_count(es);
31 ext4_fsblk_t end = start + input->blocks_count; 31 ext4_fsblk_t end = start + input->blocks_count;
32 unsigned group = input->group; 32 unsigned group = input->group;
33 ext4_fsblk_t itend = input->inode_table + sbi->s_itb_per_group; 33 ext4_fsblk_t itend = input->inode_table + sbi->s_itb_per_group;
@@ -68,43 +68,43 @@ static int verify_group_input(struct super_block *sb,
68 end - 1); 68 end - 1);
69 else if (outside(input->block_bitmap, start, end)) 69 else if (outside(input->block_bitmap, start, end))
70 ext4_warning(sb, __FUNCTION__, 70 ext4_warning(sb, __FUNCTION__,
71 "Block bitmap not in group (block %u)", 71 "Block bitmap not in group (block %llu)",
72 input->block_bitmap); 72 input->block_bitmap);
73 else if (outside(input->inode_bitmap, start, end)) 73 else if (outside(input->inode_bitmap, start, end))
74 ext4_warning(sb, __FUNCTION__, 74 ext4_warning(sb, __FUNCTION__,
75 "Inode bitmap not in group (block %u)", 75 "Inode bitmap not in group (block %llu)",
76 input->inode_bitmap); 76 input->inode_bitmap);
77 else if (outside(input->inode_table, start, end) || 77 else if (outside(input->inode_table, start, end) ||
78 outside(itend - 1, start, end)) 78 outside(itend - 1, start, end))
79 ext4_warning(sb, __FUNCTION__, 79 ext4_warning(sb, __FUNCTION__,
80 "Inode table not in group (blocks %u-"E3FSBLK")", 80 "Inode table not in group (blocks %llu-%llu)",
81 input->inode_table, itend - 1); 81 input->inode_table, itend - 1);
82 else if (input->inode_bitmap == input->block_bitmap) 82 else if (input->inode_bitmap == input->block_bitmap)
83 ext4_warning(sb, __FUNCTION__, 83 ext4_warning(sb, __FUNCTION__,
84 "Block bitmap same as inode bitmap (%u)", 84 "Block bitmap same as inode bitmap (%llu)",
85 input->block_bitmap); 85 input->block_bitmap);
86 else if (inside(input->block_bitmap, input->inode_table, itend)) 86 else if (inside(input->block_bitmap, input->inode_table, itend))
87 ext4_warning(sb, __FUNCTION__, 87 ext4_warning(sb, __FUNCTION__,
88 "Block bitmap (%u) in inode table (%u-"E3FSBLK")", 88 "Block bitmap (%llu) in inode table (%llu-%llu)",
89 input->block_bitmap, input->inode_table, itend-1); 89 input->block_bitmap, input->inode_table, itend-1);
90 else if (inside(input->inode_bitmap, input->inode_table, itend)) 90 else if (inside(input->inode_bitmap, input->inode_table, itend))
91 ext4_warning(sb, __FUNCTION__, 91 ext4_warning(sb, __FUNCTION__,
92 "Inode bitmap (%u) in inode table (%u-"E3FSBLK")", 92 "Inode bitmap (%llu) in inode table (%llu-%llu)",
93 input->inode_bitmap, input->inode_table, itend-1); 93 input->inode_bitmap, input->inode_table, itend-1);
94 else if (inside(input->block_bitmap, start, metaend)) 94 else if (inside(input->block_bitmap, start, metaend))
95 ext4_warning(sb, __FUNCTION__, 95 ext4_warning(sb, __FUNCTION__,
96 "Block bitmap (%u) in GDT table" 96 "Block bitmap (%llu) in GDT table"
97 " ("E3FSBLK"-"E3FSBLK")", 97 " ("E3FSBLK"-"E3FSBLK")",
98 input->block_bitmap, start, metaend - 1); 98 input->block_bitmap, start, metaend - 1);
99 else if (inside(input->inode_bitmap, start, metaend)) 99 else if (inside(input->inode_bitmap, start, metaend))
100 ext4_warning(sb, __FUNCTION__, 100 ext4_warning(sb, __FUNCTION__,
101 "Inode bitmap (%u) in GDT table" 101 "Inode bitmap (%llu) in GDT table"
102 " ("E3FSBLK"-"E3FSBLK")", 102 " ("E3FSBLK"-"E3FSBLK")",
103 input->inode_bitmap, start, metaend - 1); 103 input->inode_bitmap, start, metaend - 1);
104 else if (inside(input->inode_table, start, metaend) || 104 else if (inside(input->inode_table, start, metaend) ||
105 inside(itend - 1, start, metaend)) 105 inside(itend - 1, start, metaend))
106 ext4_warning(sb, __FUNCTION__, 106 ext4_warning(sb, __FUNCTION__,
107 "Inode table (%u-"E3FSBLK") overlaps" 107 "Inode table ("E3FSBLK"-"E3FSBLK") overlaps"
108 "GDT table ("E3FSBLK"-"E3FSBLK")", 108 "GDT table ("E3FSBLK"-"E3FSBLK")",
109 input->inode_table, itend - 1, start, metaend - 1); 109 input->inode_table, itend - 1, start, metaend - 1);
110 else 110 else
@@ -286,6 +286,7 @@ exit_journal:
286 return err; 286 return err;
287} 287}
288 288
289
289/* 290/*
290 * Iterate through the groups which hold BACKUP superblock/GDT copies in an 291 * Iterate through the groups which hold BACKUP superblock/GDT copies in an
291 * ext4 filesystem. The counters should be initialized to 1, 5, and 7 before 292 * ext4 filesystem. The counters should be initialized to 1, 5, and 7 before
@@ -340,12 +341,15 @@ static int verify_reserved_gdb(struct super_block *sb,
340 int gdbackups = 0; 341 int gdbackups = 0;
341 342
342 while ((grp = ext4_list_backups(sb, &three, &five, &seven)) < end) { 343 while ((grp = ext4_list_backups(sb, &three, &five, &seven)) < end) {
343 if (le32_to_cpu(*p++) != grp * EXT4_BLOCKS_PER_GROUP(sb) + blk){ 344 if (le32_to_cpu(*p++) !=
345 grp * EXT4_BLOCKS_PER_GROUP(sb) + blk){
344 ext4_warning(sb, __FUNCTION__, 346 ext4_warning(sb, __FUNCTION__,
345 "reserved GDT "E3FSBLK 347 "reserved GDT "E3FSBLK
346 " missing grp %d ("E3FSBLK")", 348 " missing grp %d ("E3FSBLK")",
347 blk, grp, 349 blk, grp,
348 grp * EXT4_BLOCKS_PER_GROUP(sb) + blk); 350 grp *
351 (ext4_fsblk_t)EXT4_BLOCKS_PER_GROUP(sb) +
352 blk);
349 return -EINVAL; 353 return -EINVAL;
350 } 354 }
351 if (++gdbackups > EXT4_ADDR_PER_BLOCK(sb)) 355 if (++gdbackups > EXT4_ADDR_PER_BLOCK(sb))
@@ -731,8 +735,8 @@ int ext4_group_add(struct super_block *sb, struct ext4_new_group_data *input)
731 return -EPERM; 735 return -EPERM;
732 } 736 }
733 737
734 if (le32_to_cpu(es->s_blocks_count) + input->blocks_count < 738 if (ext4_blocks_count(es) + input->blocks_count <
735 le32_to_cpu(es->s_blocks_count)) { 739 ext4_blocks_count(es)) {
736 ext4_warning(sb, __FUNCTION__, "blocks_count overflow\n"); 740 ext4_warning(sb, __FUNCTION__, "blocks_count overflow\n");
737 return -EINVAL; 741 return -EINVAL;
738 } 742 }
@@ -830,9 +834,9 @@ int ext4_group_add(struct super_block *sb, struct ext4_new_group_data *input)
830 /* Update group descriptor block for new group */ 834 /* Update group descriptor block for new group */
831 gdp = (struct ext4_group_desc *)primary->b_data + gdb_off; 835 gdp = (struct ext4_group_desc *)primary->b_data + gdb_off;
832 836
833 gdp->bg_block_bitmap = cpu_to_le32(input->block_bitmap); 837 ext4_block_bitmap_set(gdp, input->block_bitmap); /* LV FIXME */
834 gdp->bg_inode_bitmap = cpu_to_le32(input->inode_bitmap); 838 ext4_inode_bitmap_set(gdp, input->inode_bitmap); /* LV FIXME */
835 gdp->bg_inode_table = cpu_to_le32(input->inode_table); 839 ext4_inode_table_set(gdp, input->inode_table); /* LV FIXME */
836 gdp->bg_free_blocks_count = cpu_to_le16(input->free_blocks_count); 840 gdp->bg_free_blocks_count = cpu_to_le16(input->free_blocks_count);
837 gdp->bg_free_inodes_count = cpu_to_le16(EXT4_INODES_PER_GROUP(sb)); 841 gdp->bg_free_inodes_count = cpu_to_le16(EXT4_INODES_PER_GROUP(sb));
838 842
@@ -846,7 +850,7 @@ int ext4_group_add(struct super_block *sb, struct ext4_new_group_data *input)
846 * blocks/inodes before the group is live won't actually let us 850 * blocks/inodes before the group is live won't actually let us
847 * allocate the new space yet. 851 * allocate the new space yet.
848 */ 852 */
849 es->s_blocks_count = cpu_to_le32(le32_to_cpu(es->s_blocks_count) + 853 ext4_blocks_count_set(es, ext4_blocks_count(es) +
850 input->blocks_count); 854 input->blocks_count);
851 es->s_inodes_count = cpu_to_le32(le32_to_cpu(es->s_inodes_count) + 855 es->s_inodes_count = cpu_to_le32(le32_to_cpu(es->s_inodes_count) +
852 EXT4_INODES_PER_GROUP(sb)); 856 EXT4_INODES_PER_GROUP(sb));
@@ -882,7 +886,7 @@ int ext4_group_add(struct super_block *sb, struct ext4_new_group_data *input)
882 886
883 /* Update the reserved block counts only once the new group is 887 /* Update the reserved block counts only once the new group is
884 * active. */ 888 * active. */
885 es->s_r_blocks_count = cpu_to_le32(le32_to_cpu(es->s_r_blocks_count) + 889 ext4_r_blocks_count_set(es, ext4_r_blocks_count(es) +
886 input->reserved_blocks); 890 input->reserved_blocks);
887 891
888 /* Update the free space counts */ 892 /* Update the free space counts */
@@ -933,7 +937,7 @@ int ext4_group_extend(struct super_block *sb, struct ext4_super_block *es,
933 /* We don't need to worry about locking wrt other resizers just 937 /* We don't need to worry about locking wrt other resizers just
934 * yet: we're going to revalidate es->s_blocks_count after 938 * yet: we're going to revalidate es->s_blocks_count after
935 * taking lock_super() below. */ 939 * taking lock_super() below. */
936 o_blocks_count = le32_to_cpu(es->s_blocks_count); 940 o_blocks_count = ext4_blocks_count(es);
937 o_groups_count = EXT4_SB(sb)->s_groups_count; 941 o_groups_count = EXT4_SB(sb)->s_groups_count;
938 942
939 if (test_opt(sb, DEBUG)) 943 if (test_opt(sb, DEBUG))
@@ -1004,7 +1008,7 @@ int ext4_group_extend(struct super_block *sb, struct ext4_super_block *es,
1004 } 1008 }
1005 1009
1006 lock_super(sb); 1010 lock_super(sb);
1007 if (o_blocks_count != le32_to_cpu(es->s_blocks_count)) { 1011 if (o_blocks_count != ext4_blocks_count(es)) {
1008 ext4_warning(sb, __FUNCTION__, 1012 ext4_warning(sb, __FUNCTION__,
1009 "multiple resizers run on filesystem!"); 1013 "multiple resizers run on filesystem!");
1010 unlock_super(sb); 1014 unlock_super(sb);
@@ -1020,7 +1024,7 @@ int ext4_group_extend(struct super_block *sb, struct ext4_super_block *es,
1020 ext4_journal_stop(handle); 1024 ext4_journal_stop(handle);
1021 goto exit_put; 1025 goto exit_put;
1022 } 1026 }
1023 es->s_blocks_count = cpu_to_le32(o_blocks_count + add); 1027 ext4_blocks_count_set(es, o_blocks_count + add);
1024 ext4_journal_dirty_metadata(handle, EXT4_SB(sb)->s_sbh); 1028 ext4_journal_dirty_metadata(handle, EXT4_SB(sb)->s_sbh);
1025 sb->s_dirt = 1; 1029 sb->s_dirt = 1;
1026 unlock_super(sb); 1030 unlock_super(sb);
@@ -1032,8 +1036,8 @@ int ext4_group_extend(struct super_block *sb, struct ext4_super_block *es,
1032 if ((err = ext4_journal_stop(handle))) 1036 if ((err = ext4_journal_stop(handle)))
1033 goto exit_put; 1037 goto exit_put;
1034 if (test_opt(sb, DEBUG)) 1038 if (test_opt(sb, DEBUG))
1035 printk(KERN_DEBUG "EXT4-fs: extended group to %u blocks\n", 1039 printk(KERN_DEBUG "EXT4-fs: extended group to %llu blocks\n",
1036 le32_to_cpu(es->s_blocks_count)); 1040 ext4_blocks_count(es));
1037 update_backups(sb, EXT4_SB(sb)->s_sbh->b_blocknr, (char *)es, 1041 update_backups(sb, EXT4_SB(sb)->s_sbh->b_blocknr, (char *)es,
1038 sizeof(struct ext4_super_block)); 1042 sizeof(struct ext4_super_block));
1039exit_put: 1043exit_put:
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 1d12e4f7d69..b91dffd7a03 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -62,6 +62,43 @@ static void ext4_unlockfs(struct super_block *sb);
62static void ext4_write_super (struct super_block * sb); 62static void ext4_write_super (struct super_block * sb);
63static void ext4_write_super_lockfs(struct super_block *sb); 63static void ext4_write_super_lockfs(struct super_block *sb);
64 64
65
66ext4_fsblk_t ext4_block_bitmap(struct ext4_group_desc *bg)
67{
68 return le32_to_cpu(bg->bg_block_bitmap) |
69 ((ext4_fsblk_t)le16_to_cpu(bg->bg_block_bitmap_hi) << 32);
70}
71
72ext4_fsblk_t ext4_inode_bitmap(struct ext4_group_desc *bg)
73{
74 return le32_to_cpu(bg->bg_inode_bitmap) |
75 ((ext4_fsblk_t)le16_to_cpu(bg->bg_inode_bitmap_hi) << 32);
76}
77
78ext4_fsblk_t ext4_inode_table(struct ext4_group_desc *bg)
79{
80 return le32_to_cpu(bg->bg_inode_table) |
81 ((ext4_fsblk_t)le16_to_cpu(bg->bg_inode_table_hi) << 32);
82}
83
84void ext4_block_bitmap_set(struct ext4_group_desc *bg, ext4_fsblk_t blk)
85{
86 bg->bg_block_bitmap = cpu_to_le32((u32)blk);
87 bg->bg_block_bitmap_hi = cpu_to_le16(blk >> 32);
88}
89
90void ext4_inode_bitmap_set(struct ext4_group_desc *bg, ext4_fsblk_t blk)
91{
92 bg->bg_inode_bitmap = cpu_to_le32((u32)blk);
93 bg->bg_inode_bitmap_hi = cpu_to_le16(blk >> 32);
94}
95
96void ext4_inode_table_set(struct ext4_group_desc *bg, ext4_fsblk_t blk)
97{
98 bg->bg_inode_table = cpu_to_le32((u32)blk);
99 bg->bg_inode_table_hi = cpu_to_le16(blk >> 32);
100}
101
65/* 102/*
66 * Wrappers for jbd2_journal_start/end. 103 * Wrappers for jbd2_journal_start/end.
67 * 104 *
@@ -1182,6 +1219,9 @@ static int ext4_check_descriptors (struct super_block * sb)
1182 struct ext4_sb_info *sbi = EXT4_SB(sb); 1219 struct ext4_sb_info *sbi = EXT4_SB(sb);
1183 ext4_fsblk_t first_block = le32_to_cpu(sbi->s_es->s_first_data_block); 1220 ext4_fsblk_t first_block = le32_to_cpu(sbi->s_es->s_first_data_block);
1184 ext4_fsblk_t last_block; 1221 ext4_fsblk_t last_block;
1222 ext4_fsblk_t block_bitmap;
1223 ext4_fsblk_t inode_bitmap;
1224 ext4_fsblk_t inode_table;
1185 struct ext4_group_desc * gdp = NULL; 1225 struct ext4_group_desc * gdp = NULL;
1186 int desc_block = 0; 1226 int desc_block = 0;
1187 int i; 1227 int i;
@@ -1191,7 +1231,7 @@ static int ext4_check_descriptors (struct super_block * sb)
1191 for (i = 0; i < sbi->s_groups_count; i++) 1231 for (i = 0; i < sbi->s_groups_count; i++)
1192 { 1232 {
1193 if (i == sbi->s_groups_count - 1) 1233 if (i == sbi->s_groups_count - 1)
1194 last_block = le32_to_cpu(sbi->s_es->s_blocks_count) - 1; 1234 last_block = ext4_blocks_count(sbi->s_es) - 1;
1195 else 1235 else
1196 last_block = first_block + 1236 last_block = first_block +
1197 (EXT4_BLOCKS_PER_GROUP(sb) - 1); 1237 (EXT4_BLOCKS_PER_GROUP(sb) - 1);
@@ -1199,42 +1239,39 @@ static int ext4_check_descriptors (struct super_block * sb)
1199 if ((i % EXT4_DESC_PER_BLOCK(sb)) == 0) 1239 if ((i % EXT4_DESC_PER_BLOCK(sb)) == 0)
1200 gdp = (struct ext4_group_desc *) 1240 gdp = (struct ext4_group_desc *)
1201 sbi->s_group_desc[desc_block++]->b_data; 1241 sbi->s_group_desc[desc_block++]->b_data;
1202 if (le32_to_cpu(gdp->bg_block_bitmap) < first_block || 1242 block_bitmap = ext4_block_bitmap(gdp);
1203 le32_to_cpu(gdp->bg_block_bitmap) > last_block) 1243 if (block_bitmap < first_block || block_bitmap > last_block)
1204 { 1244 {
1205 ext4_error (sb, "ext4_check_descriptors", 1245 ext4_error (sb, "ext4_check_descriptors",
1206 "Block bitmap for group %d" 1246 "Block bitmap for group %d"
1207 " not in group (block %lu)!", 1247 " not in group (block "E3FSBLK")!",
1208 i, (unsigned long) 1248 i, block_bitmap);
1209 le32_to_cpu(gdp->bg_block_bitmap));
1210 return 0; 1249 return 0;
1211 } 1250 }
1212 if (le32_to_cpu(gdp->bg_inode_bitmap) < first_block || 1251 inode_bitmap = ext4_inode_bitmap(gdp);
1213 le32_to_cpu(gdp->bg_inode_bitmap) > last_block) 1252 if (inode_bitmap < first_block || inode_bitmap > last_block)
1214 { 1253 {
1215 ext4_error (sb, "ext4_check_descriptors", 1254 ext4_error (sb, "ext4_check_descriptors",
1216 "Inode bitmap for group %d" 1255 "Inode bitmap for group %d"
1217 " not in group (block %lu)!", 1256 " not in group (block "E3FSBLK")!",
1218 i, (unsigned long) 1257 i, inode_bitmap);
1219 le32_to_cpu(gdp->bg_inode_bitmap));
1220 return 0; 1258 return 0;
1221 } 1259 }
1222 if (le32_to_cpu(gdp->bg_inode_table) < first_block || 1260 inode_table = ext4_inode_table(gdp);
1223 le32_to_cpu(gdp->bg_inode_table) + sbi->s_itb_per_group > 1261 if (inode_table < first_block ||
1224 last_block) 1262 inode_table + sbi->s_itb_per_group > last_block)
1225 { 1263 {
1226 ext4_error (sb, "ext4_check_descriptors", 1264 ext4_error (sb, "ext4_check_descriptors",
1227 "Inode table for group %d" 1265 "Inode table for group %d"
1228 " not in group (block %lu)!", 1266 " not in group (block "E3FSBLK")!",
1229 i, (unsigned long) 1267 i, inode_table);
1230 le32_to_cpu(gdp->bg_inode_table));
1231 return 0; 1268 return 0;
1232 } 1269 }
1233 first_block += EXT4_BLOCKS_PER_GROUP(sb); 1270 first_block += EXT4_BLOCKS_PER_GROUP(sb);
1234 gdp++; 1271 gdp++;
1235 } 1272 }
1236 1273
1237 sbi->s_es->s_free_blocks_count=cpu_to_le32(ext4_count_free_blocks(sb)); 1274 ext4_free_blocks_count_set(sbi->s_es, ext4_count_free_blocks(sb));
1238 sbi->s_es->s_free_inodes_count=cpu_to_le32(ext4_count_free_inodes(sb)); 1275 sbi->s_es->s_free_inodes_count=cpu_to_le32(ext4_count_free_inodes(sb));
1239 return 1; 1276 return 1;
1240} 1277}
@@ -1411,6 +1448,7 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
1411 int i; 1448 int i;
1412 int needs_recovery; 1449 int needs_recovery;
1413 __le32 features; 1450 __le32 features;
1451 __u64 blocks_count;
1414 1452
1415 sbi = kzalloc(sizeof(*sbi), GFP_KERNEL); 1453 sbi = kzalloc(sizeof(*sbi), GFP_KERNEL);
1416 if (!sbi) 1454 if (!sbi)
@@ -1620,7 +1658,7 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
1620 goto failed_mount; 1658 goto failed_mount;
1621 } 1659 }
1622 1660
1623 if (le32_to_cpu(es->s_blocks_count) > 1661 if (ext4_blocks_count(es) >
1624 (sector_t)(~0ULL) >> (sb->s_blocksize_bits - 9)) { 1662 (sector_t)(~0ULL) >> (sb->s_blocksize_bits - 9)) {
1625 printk(KERN_ERR "EXT4-fs: filesystem on %s:" 1663 printk(KERN_ERR "EXT4-fs: filesystem on %s:"
1626 " too large to mount safely\n", sb->s_id); 1664 " too large to mount safely\n", sb->s_id);
@@ -1632,9 +1670,11 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
1632 1670
1633 if (EXT4_BLOCKS_PER_GROUP(sb) == 0) 1671 if (EXT4_BLOCKS_PER_GROUP(sb) == 0)
1634 goto cantfind_ext4; 1672 goto cantfind_ext4;
1635 sbi->s_groups_count = ((le32_to_cpu(es->s_blocks_count) - 1673 blocks_count = (ext4_blocks_count(es) -
1636 le32_to_cpu(es->s_first_data_block) - 1) 1674 le32_to_cpu(es->s_first_data_block) +
1637 / EXT4_BLOCKS_PER_GROUP(sb)) + 1; 1675 EXT4_BLOCKS_PER_GROUP(sb) - 1);
1676 do_div(blocks_count, EXT4_BLOCKS_PER_GROUP(sb));
1677 sbi->s_groups_count = blocks_count;
1638 db_count = (sbi->s_groups_count + EXT4_DESC_PER_BLOCK(sb) - 1) / 1678 db_count = (sbi->s_groups_count + EXT4_DESC_PER_BLOCK(sb) - 1) /
1639 EXT4_DESC_PER_BLOCK(sb); 1679 EXT4_DESC_PER_BLOCK(sb);
1640 sbi->s_group_desc = kmalloc(db_count * sizeof (struct buffer_head *), 1680 sbi->s_group_desc = kmalloc(db_count * sizeof (struct buffer_head *),
@@ -1949,7 +1989,7 @@ static journal_t *ext4_get_dev_journal(struct super_block *sb,
1949 goto out_bdev; 1989 goto out_bdev;
1950 } 1990 }
1951 1991
1952 len = le32_to_cpu(es->s_blocks_count); 1992 len = ext4_blocks_count(es);
1953 start = sb_block + 1; 1993 start = sb_block + 1;
1954 brelse(bh); /* we're done with the superblock */ 1994 brelse(bh); /* we're done with the superblock */
1955 1995
@@ -2119,7 +2159,7 @@ static void ext4_commit_super (struct super_block * sb,
2119 if (!sbh) 2159 if (!sbh)
2120 return; 2160 return;
2121 es->s_wtime = cpu_to_le32(get_seconds()); 2161 es->s_wtime = cpu_to_le32(get_seconds());
2122 es->s_free_blocks_count = cpu_to_le32(ext4_count_free_blocks(sb)); 2162 ext4_free_blocks_count_set(es, ext4_count_free_blocks(sb));
2123 es->s_free_inodes_count = cpu_to_le32(ext4_count_free_inodes(sb)); 2163 es->s_free_inodes_count = cpu_to_le32(ext4_count_free_inodes(sb));
2124 BUFFER_TRACE(sbh, "marking dirty"); 2164 BUFFER_TRACE(sbh, "marking dirty");
2125 mark_buffer_dirty(sbh); 2165 mark_buffer_dirty(sbh);
@@ -2312,7 +2352,7 @@ static int ext4_remount (struct super_block * sb, int * flags, char * data)
2312 ext4_init_journal_params(sb, sbi->s_journal); 2352 ext4_init_journal_params(sb, sbi->s_journal);
2313 2353
2314 if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY) || 2354 if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY) ||
2315 n_blocks_count > le32_to_cpu(es->s_blocks_count)) { 2355 n_blocks_count > ext4_blocks_count(es)) {
2316 if (sbi->s_mount_opt & EXT4_MOUNT_ABORT) { 2356 if (sbi->s_mount_opt & EXT4_MOUNT_ABORT) {
2317 err = -EROFS; 2357 err = -EROFS;
2318 goto restore_opts; 2358 goto restore_opts;
@@ -2431,10 +2471,10 @@ static int ext4_statfs (struct dentry * dentry, struct kstatfs * buf)
2431 2471
2432 buf->f_type = EXT4_SUPER_MAGIC; 2472 buf->f_type = EXT4_SUPER_MAGIC;
2433 buf->f_bsize = sb->s_blocksize; 2473 buf->f_bsize = sb->s_blocksize;
2434 buf->f_blocks = le32_to_cpu(es->s_blocks_count) - overhead; 2474 buf->f_blocks = ext4_blocks_count(es) - overhead;
2435 buf->f_bfree = percpu_counter_sum(&sbi->s_freeblocks_counter); 2475 buf->f_bfree = percpu_counter_sum(&sbi->s_freeblocks_counter);
2436 buf->f_bavail = buf->f_bfree - le32_to_cpu(es->s_r_blocks_count); 2476 buf->f_bavail = buf->f_bfree - ext4_r_blocks_count(es);
2437 if (buf->f_bfree < le32_to_cpu(es->s_r_blocks_count)) 2477 if (buf->f_bfree < ext4_r_blocks_count(es))
2438 buf->f_bavail = 0; 2478 buf->f_bavail = 0;
2439 buf->f_files = le32_to_cpu(es->s_inodes_count); 2479 buf->f_files = le32_to_cpu(es->s_inodes_count);
2440 buf->f_ffree = percpu_counter_sum(&sbi->s_freeinodes_counter); 2480 buf->f_ffree = percpu_counter_sum(&sbi->s_freeinodes_counter);
diff --git a/include/linux/ext4_fs.h b/include/linux/ext4_fs.h
index 63ed89f5b27..8e5009ee4ad 100644
--- a/include/linux/ext4_fs.h
+++ b/include/linux/ext4_fs.h
@@ -128,10 +128,17 @@ struct ext4_group_desc
128 __le16 bg_free_blocks_count; /* Free blocks count */ 128 __le16 bg_free_blocks_count; /* Free blocks count */
129 __le16 bg_free_inodes_count; /* Free inodes count */ 129 __le16 bg_free_inodes_count; /* Free inodes count */
130 __le16 bg_used_dirs_count; /* Directories count */ 130 __le16 bg_used_dirs_count; /* Directories count */
131 __u16 bg_pad; 131 __u16 bg_flags;
132 __le32 bg_reserved[3]; 132 __le16 bg_block_bitmap_hi; /* Blocks bitmap block MSB */
133 __le16 bg_inode_bitmap_hi; /* Inodes bitmap block MSB */
134 __le16 bg_inode_table_hi; /* Inodes table block MSB */
135 __u16 bg_reserved[3];
133}; 136};
134 137
138#ifdef __KERNEL__
139#include <linux/ext4_fs_i.h>
140#include <linux/ext4_fs_sb.h>
141#endif
135/* 142/*
136 * Macro-instructions used to manage group descriptors 143 * Macro-instructions used to manage group descriptors
137 */ 144 */
@@ -194,9 +201,9 @@ struct ext4_group_desc
194/* Used to pass group descriptor data when online resize is done */ 201/* Used to pass group descriptor data when online resize is done */
195struct ext4_new_group_input { 202struct ext4_new_group_input {
196 __u32 group; /* Group number for this data */ 203 __u32 group; /* Group number for this data */
197 __u32 block_bitmap; /* Absolute block number of block bitmap */ 204 __u64 block_bitmap; /* Absolute block number of block bitmap */
198 __u32 inode_bitmap; /* Absolute block number of inode bitmap */ 205 __u64 inode_bitmap; /* Absolute block number of inode bitmap */
199 __u32 inode_table; /* Absolute block number of inode table start */ 206 __u64 inode_table; /* Absolute block number of inode table start */
200 __u32 blocks_count; /* Total number of blocks in this group */ 207 __u32 blocks_count; /* Total number of blocks in this group */
201 __u16 reserved_blocks; /* Number of reserved blocks in this group */ 208 __u16 reserved_blocks; /* Number of reserved blocks in this group */
202 __u16 unused; 209 __u16 unused;
@@ -205,9 +212,9 @@ struct ext4_new_group_input {
205/* The struct ext4_new_group_input in kernel space, with free_blocks_count */ 212/* The struct ext4_new_group_input in kernel space, with free_blocks_count */
206struct ext4_new_group_data { 213struct ext4_new_group_data {
207 __u32 group; 214 __u32 group;
208 __u32 block_bitmap; 215 __u64 block_bitmap;
209 __u32 inode_bitmap; 216 __u64 inode_bitmap;
210 __u32 inode_table; 217 __u64 inode_table;
211 __u32 blocks_count; 218 __u32 blocks_count;
212 __u16 reserved_blocks; 219 __u16 reserved_blocks;
213 __u16 unused; 220 __u16 unused;
@@ -494,14 +501,18 @@ struct ext4_super_block {
494 __u8 s_def_hash_version; /* Default hash version to use */ 501 __u8 s_def_hash_version; /* Default hash version to use */
495 __u8 s_reserved_char_pad; 502 __u8 s_reserved_char_pad;
496 __u16 s_reserved_word_pad; 503 __u16 s_reserved_word_pad;
497 __le32 s_default_mount_opts; 504/*100*/ __le32 s_default_mount_opts;
498 __le32 s_first_meta_bg; /* First metablock block group */ 505 __le32 s_first_meta_bg; /* First metablock block group */
499 __u32 s_reserved[190]; /* Padding to the end of the block */ 506 __le32 s_mkfs_time; /* When the filesystem was created */
507 __le32 s_jnl_blocks[17]; /* Backup of the journal inode */
508 /* 64bit support valid if EXT4_FEATURE_COMPAT_64BIT */
509/*150*/ __le32 s_blocks_count_hi; /* Blocks count */
510 __le32 s_r_blocks_count_hi; /* Reserved blocks count */
511 __le32 s_free_blocks_count_hi; /* Free blocks count */
512 __u32 s_reserved[169]; /* Padding to the end of the block */
500}; 513};
501 514
502#ifdef __KERNEL__ 515#ifdef __KERNEL__
503#include <linux/ext4_fs_i.h>
504#include <linux/ext4_fs_sb.h>
505static inline struct ext4_sb_info * EXT4_SB(struct super_block *sb) 516static inline struct ext4_sb_info * EXT4_SB(struct super_block *sb)
506{ 517{
507 return sb->s_fs_info; 518 return sb->s_fs_info;
@@ -588,12 +599,14 @@ static inline int ext4_valid_inum(struct super_block *sb, unsigned long ino)
588#define EXT4_FEATURE_INCOMPAT_JOURNAL_DEV 0x0008 /* Journal device */ 599#define EXT4_FEATURE_INCOMPAT_JOURNAL_DEV 0x0008 /* Journal device */
589#define EXT4_FEATURE_INCOMPAT_META_BG 0x0010 600#define EXT4_FEATURE_INCOMPAT_META_BG 0x0010
590#define EXT4_FEATURE_INCOMPAT_EXTENTS 0x0040 /* extents support */ 601#define EXT4_FEATURE_INCOMPAT_EXTENTS 0x0040 /* extents support */
602#define EXT4_FEATURE_INCOMPAT_64BIT 0x0080
591 603
592#define EXT4_FEATURE_COMPAT_SUPP EXT2_FEATURE_COMPAT_EXT_ATTR 604#define EXT4_FEATURE_COMPAT_SUPP EXT2_FEATURE_COMPAT_EXT_ATTR
593#define EXT4_FEATURE_INCOMPAT_SUPP (EXT4_FEATURE_INCOMPAT_FILETYPE| \ 605#define EXT4_FEATURE_INCOMPAT_SUPP (EXT4_FEATURE_INCOMPAT_FILETYPE| \
594 EXT4_FEATURE_INCOMPAT_RECOVER| \ 606 EXT4_FEATURE_INCOMPAT_RECOVER| \
595 EXT4_FEATURE_INCOMPAT_META_BG| \ 607 EXT4_FEATURE_INCOMPAT_META_BG| \
596 EXT4_FEATURE_INCOMPAT_EXTENTS) 608 EXT4_FEATURE_INCOMPAT_EXTENTS| \
609 EXT4_FEATURE_INCOMPAT_64BIT)
597#define EXT4_FEATURE_RO_COMPAT_SUPP (EXT4_FEATURE_RO_COMPAT_SPARSE_SUPER| \ 610#define EXT4_FEATURE_RO_COMPAT_SUPP (EXT4_FEATURE_RO_COMPAT_SPARSE_SUPER| \
598 EXT4_FEATURE_RO_COMPAT_LARGE_FILE| \ 611 EXT4_FEATURE_RO_COMPAT_LARGE_FILE| \
599 EXT4_FEATURE_RO_COMPAT_BTREE_DIR) 612 EXT4_FEATURE_RO_COMPAT_BTREE_DIR)
@@ -888,6 +901,53 @@ extern void ext4_abort (struct super_block *, const char *, const char *, ...)
888extern void ext4_warning (struct super_block *, const char *, const char *, ...) 901extern void ext4_warning (struct super_block *, const char *, const char *, ...)
889 __attribute__ ((format (printf, 3, 4))); 902 __attribute__ ((format (printf, 3, 4)));
890extern void ext4_update_dynamic_rev (struct super_block *sb); 903extern void ext4_update_dynamic_rev (struct super_block *sb);
904extern ext4_fsblk_t ext4_block_bitmap(struct ext4_group_desc *bg);
905extern ext4_fsblk_t ext4_inode_bitmap(struct ext4_group_desc *bg);
906extern ext4_fsblk_t ext4_inode_table(struct ext4_group_desc *bg);
907extern void ext4_block_bitmap_set(struct ext4_group_desc *bg, ext4_fsblk_t blk);
908extern void ext4_inode_bitmap_set(struct ext4_group_desc *bg, ext4_fsblk_t blk);
909extern void ext4_inode_table_set(struct ext4_group_desc *bg, ext4_fsblk_t blk);
910
911static inline ext4_fsblk_t ext4_blocks_count(struct ext4_super_block *es)
912{
913 return ((ext4_fsblk_t)le32_to_cpu(es->s_blocks_count_hi) << 32) |
914 le32_to_cpu(es->s_blocks_count);
915}
916
917static inline ext4_fsblk_t ext4_r_blocks_count(struct ext4_super_block *es)
918{
919 return ((ext4_fsblk_t)le32_to_cpu(es->s_r_blocks_count_hi) << 32) |
920 le32_to_cpu(es->s_r_blocks_count);
921}
922
923static inline ext4_fsblk_t ext4_free_blocks_count(struct ext4_super_block *es)
924{
925 return ((ext4_fsblk_t)le32_to_cpu(es->s_free_blocks_count_hi) << 32) |
926 le32_to_cpu(es->s_free_blocks_count);
927}
928
929static inline void ext4_blocks_count_set(struct ext4_super_block *es,
930 ext4_fsblk_t blk)
931{
932 es->s_blocks_count = cpu_to_le32((u32)blk);
933 es->s_blocks_count_hi = cpu_to_le32(blk >> 32);
934}
935
936static inline void ext4_free_blocks_count_set(struct ext4_super_block *es,
937 ext4_fsblk_t blk)
938{
939 es->s_free_blocks_count = cpu_to_le32((u32)blk);
940 es->s_free_blocks_count_hi = cpu_to_le32(blk >> 32);
941}
942
943static inline void ext4_r_blocks_count_set(struct ext4_super_block *es,
944 ext4_fsblk_t blk)
945{
946 es->s_r_blocks_count = cpu_to_le32((u32)blk);
947 es->s_r_blocks_count_hi = cpu_to_le32(blk >> 32);
948}
949
950
891 951
892#define ext4_std_error(sb, errno) \ 952#define ext4_std_error(sb, errno) \
893do { \ 953do { \