From 04735e9c5578dd4f3584be5454b9779e8e5c2af9 Mon Sep 17 00:00:00 2001 From: Frederic Leroy Date: Wed, 26 Jun 2013 18:11:25 +0200 Subject: Fix ext2/ext4 filesystem accesses beyond 2TiB MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit With CONFIG_SYS_64BIT_LBA, lbaint_t gets defined as a 64-bit type, which is required to represent block numbers for storage devices that exceed 2TiB (the block size usually is 512B), e.g. recent hard drives We now use lbaint_t for partition offset to reflect the lbaint_t change, and access partitions beyond or crossing the 2.1TiB limit. This required changes to signature of ext4fs_devread(), and type of all variables relatives to block sector. ext2/ext4 fs uses logical block represented by a 32 bit value. Logical block is a multiple of device block sector. To avoid overflow problem when calling ext4fs_devread(), we need to cast the sector parameter. Signed-off-by: Frédéric Leroy --- fs/ext4/dev.c | 9 +++++---- fs/ext4/ext4_common.c | 48 +++++++++++++++++++++++++++--------------------- fs/ext4/ext4_journal.c | 19 ++++++++++++------- fs/ext4/ext4_write.c | 50 +++++++++++++++++++++++++++++--------------------- fs/ext4/ext4fs.c | 14 +++++++------- 5 files changed, 80 insertions(+), 60 deletions(-) (limited to 'fs/ext4') diff --git a/fs/ext4/dev.c b/fs/ext4/dev.c index 81b7633b59..2cd182cb15 100644 --- a/fs/ext4/dev.c +++ b/fs/ext4/dev.c @@ -42,7 +42,7 @@ #include #include "ext4_common.h" -unsigned long part_offset; +lbaint_t part_offset; static block_dev_desc_t *ext4fs_block_dev_desc; static disk_partition_t *part_info; @@ -58,7 +58,7 @@ void ext4fs_set_blk_dev(block_dev_desc_t *rbdd, disk_partition_t *info) get_fs()->dev_desc->log2blksz; } -int ext4fs_devread(int sector, int byte_offset, int byte_len, char *buf) +int ext4fs_devread(lbaint_t sector, int byte_offset, int byte_len, char *buf) { unsigned block_len; int log2blksz = ext4fs_block_dev_desc->log2blksz; @@ -74,7 +74,8 @@ int ext4fs_devread(int sector, int byte_offset, int byte_len, char *buf) if ((sector < 0) || ((sector + ((byte_offset + byte_len - 1) >> log2blksz)) >= part_info->size)) { - printf("%s read outside partition %d\n", __func__, sector); + printf("%s read outside partition " LBAFU "\n", __func__, + sector); return 0; } @@ -82,7 +83,7 @@ int ext4fs_devread(int sector, int byte_offset, int byte_len, char *buf) sector += byte_offset >> log2blksz; byte_offset &= ext4fs_block_dev_desc->blksz - 1; - debug(" <%d, %d, %d>\n", sector, byte_offset, byte_len); + debug(" <" LBAFU ", %d, %d>\n", sector, byte_offset, byte_len); if (byte_offset != 0) { /* read first part which isn't aligned with start of sector */ diff --git a/fs/ext4/ext4_common.c b/fs/ext4/ext4_common.c index 58880b467f..277629380f 100644 --- a/fs/ext4/ext4_common.c +++ b/fs/ext4/ext4_common.c @@ -84,7 +84,7 @@ void put_ext4(uint64_t off, void *buf, uint32_t size) if ((startblock + (size >> log2blksz)) > (part_offset + fs->total_sect)) { - printf("part_offset is %lu\n", part_offset); + printf("part_offset is " LBAFU "\n", part_offset); printf("total_sector is %llu\n", fs->total_sect); printf("error: overflow occurs\n"); return; @@ -405,7 +405,7 @@ restart: previous_blknr = root_blknr; } - status = ext4fs_devread(first_block_no_of_root + status = ext4fs_devread((lbaint_t)first_block_no_of_root * fs->sect_perblk, 0, fs->blksz, root_first_block_buffer); if (status == 0) @@ -545,7 +545,7 @@ static int search_dir(struct ext2_inode *parent_inode, char *dirname) if (!block_buffer) goto fail; - status = ext4fs_devread(blknr * fs->sect_perblk, + status = ext4fs_devread((lbaint_t)blknr * fs->sect_perblk, 0, fs->blksz, (char *)block_buffer); if (status == 0) goto fail; @@ -783,7 +783,7 @@ static int check_filename(char *filename, unsigned int blknr) if (!root_first_block_buffer) return -ENOMEM; root_first_block_addr = root_first_block_buffer; - status = ext4fs_devread(first_block_no_of_root * + status = ext4fs_devread((lbaint_t)first_block_no_of_root * fs->sect_perblk, 0, fs->blksz, root_first_block_buffer); if (status == 0) @@ -895,7 +895,8 @@ long int ext4fs_get_new_blk_no(void) fs->first_pass_bbmap++; bgd[i].free_blocks--; fs->sb->free_blocks--; - status = ext4fs_devread(bgd[i].block_id * + status = ext4fs_devread((lbaint_t) + bgd[i].block_id * fs->sect_perblk, 0, fs->blksz, journal_buffer); @@ -957,7 +958,7 @@ restart: /* journal backup */ if (prev_bg_bitmap_index != bg_idx) { memset(journal_buffer, '\0', fs->blksz); - status = ext4fs_devread(bgd[bg_idx].block_id + status = ext4fs_devread((lbaint_t)bgd[bg_idx].block_id * fs->sect_perblk, 0, fs->blksz, journal_buffer); if (status == 0) @@ -1026,7 +1027,8 @@ int ext4fs_get_new_inode_no(void) bgd[i].free_inodes--; bgd[i].bg_itable_unused--; fs->sb->free_inodes--; - status = ext4fs_devread(bgd[i].inode_id * + status = ext4fs_devread((lbaint_t) + bgd[i].inode_id * fs->sect_perblk, 0, fs->blksz, journal_buffer); @@ -1067,7 +1069,8 @@ restart: /* journal backup */ if (prev_inode_bitmap_index != ibmap_idx) { memset(journal_buffer, '\0', fs->blksz); - status = ext4fs_devread(bgd[ibmap_idx].inode_id + status = ext4fs_devread((lbaint_t) + bgd[ibmap_idx].inode_id * fs->sect_perblk, 0, fs->blksz, journal_buffer); if (status == 0) @@ -1129,7 +1132,7 @@ static void alloc_single_indirect_block(struct ext2_inode *file_inode, (*no_blks_reqd)++; debug("SIPB %ld: %u\n", si_blockno, *total_remaining_blocks); - status = ext4fs_devread(si_blockno * fs->sect_perblk, + status = ext4fs_devread((lbaint_t)si_blockno * fs->sect_perblk, 0, fs->blksz, (char *)si_buffer); memset(si_buffer, '\0', fs->blksz); if (status == 0) @@ -1193,7 +1196,7 @@ static void alloc_double_indirect_block(struct ext2_inode *file_inode, debug("DIPB %ld: %u\n", di_blockno_parent, *total_remaining_blocks); - status = ext4fs_devread(di_blockno_parent * + status = ext4fs_devread((lbaint_t)di_blockno_parent * fs->sect_perblk, 0, fs->blksz, (char *)di_parent_buffer); @@ -1224,7 +1227,7 @@ static void alloc_double_indirect_block(struct ext2_inode *file_inode, debug("DICB %ld: %u\n", di_blockno_child, *total_remaining_blocks); - status = ext4fs_devread(di_blockno_child * + status = ext4fs_devread((lbaint_t)di_blockno_child * fs->sect_perblk, 0, fs->blksz, (char *)di_child_buff); @@ -1447,7 +1450,8 @@ static struct ext4_extent_header *ext4fs_get_extent_block block = le32_to_cpu(index[i].ei_leaf_hi); block = (block << 32) + le32_to_cpu(index[i].ei_leaf_lo); - if (ext4fs_devread(block << log2_blksz, 0, fs->blksz, buf)) + if (ext4fs_devread((lbaint_t)block << log2_blksz, 0, fs->blksz, + buf)) ext_block = (struct ext4_extent_header *)buf; else return 0; @@ -1470,7 +1474,8 @@ static int ext4fs_blockgroup debug("ext4fs read %d group descriptor (blkno %ld blkoff %u)\n", group, blkno, blkoff); - return ext4fs_devread(blkno << (LOG2_BLOCK_SIZE(data) - log2blksz), + return ext4fs_devread((lbaint_t)blkno << + (LOG2_BLOCK_SIZE(data) - log2blksz), blkoff, sizeof(struct ext2_block_group), (char *)blkgrp); } @@ -1497,8 +1502,8 @@ int ext4fs_read_inode(struct ext2_data *data, int ino, struct ext2_inode *inode) (ino % __le32_to_cpu(sblock->inodes_per_group)) / inodes_per_block; blkoff = (ino % inodes_per_block) * fs->inodesz; /* Read the inode. */ - status = ext4fs_devread(blkno << (LOG2_BLOCK_SIZE(data) - log2blksz), - blkoff, + status = ext4fs_devread((lbaint_t)blkno << (LOG2_BLOCK_SIZE(data) - + log2blksz), blkoff, sizeof(struct ext2_inode), (char *)inode); if (status == 0) return 0; @@ -1597,7 +1602,7 @@ long int read_allocated_block(struct ext2_inode *inode, int fileblock) if ((__le32_to_cpu(inode->b.blocks.indir_block) << log2_blksz) != ext4fs_indir1_blkno) { status = - ext4fs_devread(__le32_to_cpu + ext4fs_devread((lbaint_t)__le32_to_cpu (inode->b.blocks. indir_block) << log2_blksz, 0, blksz, (char *)ext4fs_indir1_block); @@ -1646,7 +1651,7 @@ long int read_allocated_block(struct ext2_inode *inode, int fileblock) if ((__le32_to_cpu(inode->b.blocks.double_indir_block) << log2_blksz) != ext4fs_indir1_blkno) { status = - ext4fs_devread(__le32_to_cpu + ext4fs_devread((lbaint_t)__le32_to_cpu (inode->b.blocks. double_indir_block) << log2_blksz, 0, blksz, @@ -1686,7 +1691,7 @@ long int read_allocated_block(struct ext2_inode *inode, int fileblock) } if ((__le32_to_cpu(ext4fs_indir1_block[rblock / perblock]) << log2_blksz) != ext4fs_indir2_blkno) { - status = ext4fs_devread(__le32_to_cpu + status = ext4fs_devread((lbaint_t)__le32_to_cpu (ext4fs_indir1_block [rblock / perblock]) << log2_blksz, 0, @@ -1738,7 +1743,8 @@ long int read_allocated_block(struct ext2_inode *inode, int fileblock) if ((__le32_to_cpu(inode->b.blocks.triple_indir_block) << log2_blksz) != ext4fs_indir1_blkno) { status = ext4fs_devread - (__le32_to_cpu(inode->b.blocks.triple_indir_block) + ((lbaint_t) + __le32_to_cpu(inode->b.blocks.triple_indir_block) << log2_blksz, 0, blksz, (char *)ext4fs_indir1_block); if (status == 0) { @@ -1778,7 +1784,7 @@ long int read_allocated_block(struct ext2_inode *inode, int fileblock) perblock_parent]) << log2_blksz) != ext4fs_indir2_blkno) { - status = ext4fs_devread(__le32_to_cpu + status = ext4fs_devread((lbaint_t)__le32_to_cpu (ext4fs_indir1_block [rblock / perblock_parent]) << @@ -1823,7 +1829,7 @@ long int read_allocated_block(struct ext2_inode *inode, int fileblock) perblock_child]) << log2_blksz) != ext4fs_indir3_blkno) { status = - ext4fs_devread(__le32_to_cpu + ext4fs_devread((lbaint_t)__le32_to_cpu (ext4fs_indir2_block [(rblock / perblock_child) % (blksz / 4)]) << log2_blksz, 0, diff --git a/fs/ext4/ext4_journal.c b/fs/ext4/ext4_journal.c index 81aa5fc0f8..a540367a70 100644 --- a/fs/ext4/ext4_journal.c +++ b/fs/ext4/ext4_journal.c @@ -360,7 +360,8 @@ void recover_transaction(int prev_desc_logical_no) (struct ext2_inode *)&inode_journal); blknr = read_allocated_block((struct ext2_inode *) &inode_journal, i); - ext4fs_devread(blknr * fs->sect_perblk, 0, fs->blksz, temp_buff); + ext4fs_devread((lbaint_t)blknr * fs->sect_perblk, 0, fs->blksz, + temp_buff); p_jdb = (char *)temp_buff; jdb = (struct journal_header_t *) temp_buff; ofs = sizeof(struct journal_header_t); @@ -384,7 +385,7 @@ void recover_transaction(int prev_desc_logical_no) continue; } blknr = read_allocated_block(&inode_journal, i); - ext4fs_devread(blknr * fs->sect_perblk, 0, + ext4fs_devread((lbaint_t)blknr * fs->sect_perblk, 0, fs->blksz, metadata_buff); put_ext4((uint64_t)(be32_to_cpu(tag->block) * fs->blksz), metadata_buff, (uint32_t) fs->blksz); @@ -431,7 +432,8 @@ int ext4fs_check_journal_state(int recovery_flag) ext4fs_read_inode(ext4fs_root, EXT2_JOURNAL_INO, &inode_journal); blknr = read_allocated_block(&inode_journal, EXT2_JOURNAL_SUPERBLOCK); - ext4fs_devread(blknr * fs->sect_perblk, 0, fs->blksz, temp_buff); + ext4fs_devread((lbaint_t)blknr * fs->sect_perblk, 0, fs->blksz, + temp_buff); jsb = (struct journal_superblock_t *) temp_buff; if (fs->sb->feature_incompat & EXT3_FEATURE_INCOMPAT_RECOVER) { @@ -455,7 +457,7 @@ int ext4fs_check_journal_state(int recovery_flag) while (1) { blknr = read_allocated_block(&inode_journal, i); memset(temp_buff1, '\0', fs->blksz); - ext4fs_devread(blknr * fs->sect_perblk, + ext4fs_devread((lbaint_t)blknr * fs->sect_perblk, 0, fs->blksz, temp_buff1); jdb = (struct journal_header_t *) temp_buff1; @@ -574,7 +576,8 @@ static void update_descriptor_block(long int blknr) ext4fs_read_inode(ext4fs_root, EXT2_JOURNAL_INO, &inode_journal); jsb_blknr = read_allocated_block(&inode_journal, EXT2_JOURNAL_SUPERBLOCK); - ext4fs_devread(jsb_blknr * fs->sect_perblk, 0, fs->blksz, temp_buff); + ext4fs_devread((lbaint_t)jsb_blknr * fs->sect_perblk, 0, fs->blksz, + temp_buff); jsb = (struct journal_superblock_t *) temp_buff; jdb.h_blocktype = cpu_to_be32(EXT3_JOURNAL_DESCRIPTOR_BLOCK); @@ -621,10 +624,12 @@ static void update_commit_block(long int blknr) if (!temp_buff) return; - ext4fs_read_inode(ext4fs_root, EXT2_JOURNAL_INO, &inode_journal); + ext4fs_read_inode(ext4fs_root, EXT2_JOURNAL_INO, + &inode_journal); jsb_blknr = read_allocated_block(&inode_journal, EXT2_JOURNAL_SUPERBLOCK); - ext4fs_devread(jsb_blknr * fs->sect_perblk, 0, fs->blksz, temp_buff); + ext4fs_devread((lbaint_t)jsb_blknr * fs->sect_perblk, 0, fs->blksz, + temp_buff); jsb = (struct journal_superblock_t *) temp_buff; jdb.h_blocktype = cpu_to_be32(EXT3_JOURNAL_COMMIT_BLOCK); diff --git a/fs/ext4/ext4_write.c b/fs/ext4/ext4_write.c index 0c1f62b60c..501b95ab7d 100644 --- a/fs/ext4/ext4_write.c +++ b/fs/ext4/ext4_write.c @@ -88,8 +88,8 @@ int ext4fs_get_bgdtable(void) if (!fs->gdtable) return -ENOMEM; /* read the group descriptor table */ - status = ext4fs_devread(fs->gdtable_blkno * fs->sect_perblk, 0, - fs->blksz * fs->no_blk_pergdt, fs->gdtable); + status = ext4fs_devread((lbaint_t)fs->gdtable_blkno * fs->sect_perblk, + 0, fs->blksz * fs->no_blk_pergdt, fs->gdtable); if (status == 0) goto fail; @@ -142,7 +142,7 @@ static void delete_single_indirect_block(struct ext2_inode *inode) /* journal backup */ if (prev_bg_bmap_idx != bg_idx) { status = - ext4fs_devread(bgd[bg_idx].block_id * + ext4fs_devread((lbaint_t)bgd[bg_idx].block_id * fs->sect_perblk, 0, fs->blksz, journal_buffer); if (status == 0) @@ -186,8 +186,8 @@ static void delete_double_indirect_block(struct ext2_inode *inode) } DIB_start_addr = (unsigned int *)di_buffer; blknr = inode->b.blocks.double_indir_block; - status = ext4fs_devread(blknr * fs->sect_perblk, 0, fs->blksz, - (char *)di_buffer); + status = ext4fs_devread((lbaint_t)blknr * fs->sect_perblk, 0, + fs->blksz, (char *)di_buffer); for (i = 0; i < fs->blksz / sizeof(int); i++) { if (*di_buffer == 0) break; @@ -208,7 +208,8 @@ static void delete_double_indirect_block(struct ext2_inode *inode) fs->sb->free_blocks++; /* journal backup */ if (prev_bg_bmap_idx != bg_idx) { - status = ext4fs_devread(bgd[bg_idx].block_id + status = ext4fs_devread((lbaint_t) + bgd[bg_idx].block_id * fs->sect_perblk, 0, fs->blksz, journal_buffer); @@ -238,7 +239,7 @@ static void delete_double_indirect_block(struct ext2_inode *inode) /* journal backup */ if (prev_bg_bmap_idx != bg_idx) { memset(journal_buffer, '\0', fs->blksz); - status = ext4fs_devread(bgd[bg_idx].block_id * + status = ext4fs_devread((lbaint_t)bgd[bg_idx].block_id * fs->sect_perblk, 0, fs->blksz, journal_buffer); if (status == 0) @@ -287,8 +288,8 @@ static void delete_triple_indirect_block(struct ext2_inode *inode) } tib_start_addr = (unsigned int *)tigp_buffer; blknr = inode->b.blocks.triple_indir_block; - status = ext4fs_devread(blknr * fs->sect_perblk, 0, fs->blksz, - (char *)tigp_buffer); + status = ext4fs_devread((lbaint_t)blknr * fs->sect_perblk, 0, + fs->blksz, (char *)tigp_buffer); for (i = 0; i < fs->blksz / sizeof(int); i++) { if (*tigp_buffer == 0) break; @@ -298,7 +299,7 @@ static void delete_triple_indirect_block(struct ext2_inode *inode) if (!tip_buffer) goto fail; tipb_start_addr = (unsigned int *)tip_buffer; - status = ext4fs_devread((*tigp_buffer) * + status = ext4fs_devread((lbaint_t)(*tigp_buffer) * fs->sect_perblk, 0, fs->blksz, (char *)tip_buffer); for (j = 0; j < fs->blksz / sizeof(int); j++) { @@ -325,6 +326,7 @@ static void delete_triple_indirect_block(struct ext2_inode *inode) if (prev_bg_bmap_idx != bg_idx) { status = ext4fs_devread( + (lbaint_t) bgd[bg_idx].block_id * fs->sect_perblk, 0, fs->blksz, @@ -365,7 +367,8 @@ static void delete_triple_indirect_block(struct ext2_inode *inode) if (prev_bg_bmap_idx != bg_idx) { memset(journal_buffer, '\0', fs->blksz); status = - ext4fs_devread(bgd[bg_idx].block_id * + ext4fs_devread((lbaint_t) + bgd[bg_idx].block_id * fs->sect_perblk, 0, fs->blksz, journal_buffer); if (status == 0) @@ -394,7 +397,7 @@ static void delete_triple_indirect_block(struct ext2_inode *inode) /* journal backup */ if (prev_bg_bmap_idx != bg_idx) { memset(journal_buffer, '\0', fs->blksz); - status = ext4fs_devread(bgd[bg_idx].block_id * + status = ext4fs_devread((lbaint_t)bgd[bg_idx].block_id * fs->sect_perblk, 0, fs->blksz, journal_buffer); if (status == 0) @@ -480,7 +483,8 @@ static int ext4fs_delete_file(int inodeno) /* journal backup */ if (prev_bg_bmap_idx != bg_idx) { status = - ext4fs_devread(bgd[bg_idx].block_id * + ext4fs_devread((lbaint_t) + bgd[bg_idx].block_id * fs->sect_perblk, 0, fs->blksz, journal_buffer); if (status == 0) @@ -524,7 +528,8 @@ static int ext4fs_delete_file(int inodeno) /* journal backup */ if (prev_bg_bmap_idx != bg_idx) { memset(journal_buffer, '\0', fs->blksz); - status = ext4fs_devread(bgd[bg_idx].block_id + status = ext4fs_devread((lbaint_t) + bgd[bg_idx].block_id * fs->sect_perblk, 0, fs->blksz, journal_buffer); @@ -555,7 +560,7 @@ static int ext4fs_delete_file(int inodeno) if (!read_buffer) goto fail; start_block_address = read_buffer; - status = ext4fs_devread(blkno * fs->sect_perblk, + status = ext4fs_devread((lbaint_t)blkno * fs->sect_perblk, 0, fs->blksz, read_buffer); if (status == 0) goto fail; @@ -578,7 +583,7 @@ static int ext4fs_delete_file(int inodeno) fs->sb->free_inodes++; /* journal backup */ memset(journal_buffer, '\0', fs->blksz); - status = ext4fs_devread(bgd[ibmap_idx].inode_id * + status = ext4fs_devread((lbaint_t)bgd[ibmap_idx].inode_id * fs->sect_perblk, 0, fs->blksz, journal_buffer); if (status == 0) goto fail; @@ -653,7 +658,8 @@ int ext4fs_init(void) for (i = 0; i < fs->no_blkgrp; i++) { status = - ext4fs_devread(fs->bgd[i].block_id * fs->sect_perblk, 0, + ext4fs_devread((lbaint_t)fs->bgd[i].block_id * + fs->sect_perblk, 0, fs->blksz, (char *)fs->blk_bmaps[i]); if (status == 0) goto fail; @@ -670,7 +676,8 @@ int ext4fs_init(void) } for (i = 0; i < fs->no_blkgrp; i++) { - status = ext4fs_devread(fs->bgd[i].inode_id * fs->sect_perblk, + status = ext4fs_devread((lbaint_t)fs->bgd[i].inode_id * + fs->sect_perblk, 0, fs->blksz, (char *)fs->inode_bmaps[i]); if (status == 0) @@ -710,7 +717,7 @@ void ext4fs_deinit(void) &inode_journal); blknr = read_allocated_block(&inode_journal, EXT2_JOURNAL_SUPERBLOCK); - ext4fs_devread(blknr * fs->sect_perblk, 0, fs->blksz, + ext4fs_devread((lbaint_t)blknr * fs->sect_perblk, 0, fs->blksz, temp_buff); jsb = (struct journal_superblock_t *)temp_buff; jsb->s_start = cpu_to_be32(0); @@ -934,7 +941,8 @@ int ext4fs_write(const char *fname, unsigned char *buffer, (inodeno % __le32_to_cpu(sblock->inodes_per_group)) / inodes_per_block; blkoff = (inodeno % inodes_per_block) * fs->inodesz; - ext4fs_devread(itable_blkno * fs->sect_perblk, 0, fs->blksz, temp_ptr); + ext4fs_devread((lbaint_t)itable_blkno * fs->sect_perblk, 0, fs->blksz, + temp_ptr); if (ext4fs_log_journal(temp_ptr, itable_blkno)) goto fail; @@ -954,7 +962,7 @@ int ext4fs_write(const char *fname, unsigned char *buffer, blkoff = (parent_inodeno % inodes_per_block) * fs->inodesz; if (parent_itable_blkno != itable_blkno) { memset(temp_ptr, '\0', fs->blksz); - ext4fs_devread(parent_itable_blkno * fs->sect_perblk, + ext4fs_devread((lbaint_t)parent_itable_blkno * fs->sect_perblk, 0, fs->blksz, temp_ptr); if (ext4fs_log_journal(temp_ptr, parent_itable_blkno)) goto fail; diff --git a/fs/ext4/ext4fs.c b/fs/ext4/ext4fs.c index 1954afb91d..20ff10f7aa 100644 --- a/fs/ext4/ext4fs.c +++ b/fs/ext4/ext4fs.c @@ -62,16 +62,16 @@ int ext4fs_read_file(struct ext2fs_node *node, int pos, { struct ext_filesystem *fs = get_fs(); int i; - int blockcnt; + lbaint_t blockcnt; int log2blksz = fs->dev_desc->log2blksz; int log2_fs_blocksize = LOG2_BLOCK_SIZE(node->data) - log2blksz; int blocksize = (1 << (log2_fs_blocksize + log2blksz)); unsigned int filesize = __le32_to_cpu(node->inode.size); - int previous_block_number = -1; - int delayed_start = 0; - int delayed_extent = 0; - int delayed_skipfirst = 0; - int delayed_next = 0; + lbaint_t previous_block_number = -1; + lbaint_t delayed_start = 0; + lbaint_t delayed_extent = 0; + lbaint_t delayed_skipfirst = 0; + lbaint_t delayed_next = 0; char *delayed_buf = NULL; short status; @@ -82,7 +82,7 @@ int ext4fs_read_file(struct ext2fs_node *node, int pos, blockcnt = ((len + pos) + blocksize - 1) / blocksize; for (i = pos / blocksize; i < blockcnt; i++) { - int blknr; + lbaint_t blknr; int blockoff = pos % blocksize; int blockend = blocksize; int skipfirst = 0; -- cgit v1.2.1