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Diffstat (limited to 'fs/ext4/ext4_common.c')
-rw-r--r--fs/ext4/ext4_common.c282
1 files changed, 158 insertions, 124 deletions
diff --git a/fs/ext4/ext4_common.c b/fs/ext4/ext4_common.c
index e8ed30aa599..caec9d45779 100644
--- a/fs/ext4/ext4_common.c
+++ b/fs/ext4/ext4_common.c
@@ -33,20 +33,45 @@
struct ext2_data *ext4fs_root;
struct ext2fs_node *ext4fs_file;
-uint32_t *ext4fs_indir1_block;
+__le32 *ext4fs_indir1_block;
int ext4fs_indir1_size;
int ext4fs_indir1_blkno = -1;
-uint32_t *ext4fs_indir2_block;
+__le32 *ext4fs_indir2_block;
int ext4fs_indir2_size;
int ext4fs_indir2_blkno = -1;
-uint32_t *ext4fs_indir3_block;
+__le32 *ext4fs_indir3_block;
int ext4fs_indir3_size;
int ext4fs_indir3_blkno = -1;
struct ext2_inode *g_parent_inode;
static int symlinknest;
#if defined(CONFIG_EXT4_WRITE)
+static inline void ext4fs_sb_free_inodes_dec(struct ext2_sblock *sb)
+{
+ sb->free_inodes = cpu_to_le32(le32_to_cpu(sb->free_inodes) - 1);
+}
+
+static inline void ext4fs_sb_free_blocks_dec(struct ext2_sblock *sb)
+{
+ sb->free_blocks = cpu_to_le32(le32_to_cpu(sb->free_blocks) - 1);
+}
+
+static inline void ext4fs_bg_free_inodes_dec(struct ext2_block_group *bg)
+{
+ bg->free_inodes = cpu_to_le16(le16_to_cpu(bg->free_inodes) - 1);
+}
+
+static inline void ext4fs_bg_free_blocks_dec(struct ext2_block_group *bg)
+{
+ bg->free_blocks = cpu_to_le16(le16_to_cpu(bg->free_blocks) - 1);
+}
+
+static inline void ext4fs_bg_itable_unused_dec(struct ext2_block_group *bg)
+{
+ bg->bg_itable_unused = cpu_to_le16(le16_to_cpu(bg->bg_itable_unused) - 1);
+}
+
uint32_t ext4fs_div_roundup(uint32_t size, uint32_t n)
{
uint32_t res = size / n;
@@ -112,7 +137,7 @@ static int _get_new_inode_no(unsigned char *buffer)
while (*ptr == 255) {
ptr++;
count += 8;
- if (count > ext4fs_root->sblock.inodes_per_group)
+ if (count > le32_to_cpu(ext4fs_root->sblock.inodes_per_group))
return -1;
}
@@ -249,7 +274,7 @@ int ext4fs_set_inode_bmap(int inode_no, unsigned char *buffer, int index)
unsigned char *ptr = buffer;
unsigned char operand;
- inode_no -= (index * ext4fs_root->sblock.inodes_per_group);
+ inode_no -= (index * le32_to_cpu(ext4fs_root->sblock.inodes_per_group));
i = inode_no / 8;
remainder = inode_no % 8;
if (remainder == 0) {
@@ -274,7 +299,7 @@ void ext4fs_reset_inode_bmap(int inode_no, unsigned char *buffer, int index)
unsigned char *ptr = buffer;
unsigned char operand;
- inode_no -= (index * ext4fs_root->sblock.inodes_per_group);
+ inode_no -= (index * le32_to_cpu(ext4fs_root->sblock.inodes_per_group));
i = inode_no / 8;
remainder = inode_no % 8;
if (remainder == 0) {
@@ -289,19 +314,20 @@ void ext4fs_reset_inode_bmap(int inode_no, unsigned char *buffer, int index)
*ptr = *ptr & ~(operand);
}
-int ext4fs_checksum_update(unsigned int i)
+uint16_t ext4fs_checksum_update(uint32_t i)
{
struct ext2_block_group *desc;
struct ext_filesystem *fs = get_fs();
- __u16 crc = 0;
+ uint16_t crc = 0;
+ __le32 le32_i = cpu_to_le32(i);
desc = (struct ext2_block_group *)&fs->bgd[i];
- if (fs->sb->feature_ro_compat & EXT4_FEATURE_RO_COMPAT_GDT_CSUM) {
+ if (le32_to_cpu(fs->sb->feature_ro_compat) & EXT4_FEATURE_RO_COMPAT_GDT_CSUM) {
int offset = offsetof(struct ext2_block_group, bg_checksum);
crc = ext2fs_crc16(~0, fs->sb->unique_id,
sizeof(fs->sb->unique_id));
- crc = ext2fs_crc16(crc, &i, sizeof(i));
+ crc = ext2fs_crc16(crc, &le32_i, sizeof(le32_i));
crc = ext2fs_crc16(crc, desc, offset);
offset += sizeof(desc->bg_checksum); /* skip checksum */
assert(offset == sizeof(*desc));
@@ -322,7 +348,7 @@ static int check_void_in_dentry(struct ext2_dirent *dir, char *filename)
dentry_length = sizeof(struct ext2_dirent) +
dir->namelen + padding_factor;
- sizeof_void_space = dir->direntlen - dentry_length;
+ sizeof_void_space = le16_to_cpu(dir->direntlen) - dentry_length;
if (sizeof_void_space == 0)
return 0;
@@ -333,7 +359,7 @@ static int check_void_in_dentry(struct ext2_dirent *dir, char *filename)
new_entry_byte_reqd = strlen(filename) +
sizeof(struct ext2_dirent) + padding_factor;
if (sizeof_void_space >= new_entry_byte_reqd) {
- dir->direntlen = dentry_length;
+ dir->direntlen = cpu_to_le16(dentry_length);
return sizeof_void_space;
}
@@ -360,6 +386,9 @@ void ext4fs_update_parent_dentry(char *filename, int *p_ino, int file_type)
/* directory entry */
struct ext2_dirent *dir;
char *temp_dir = NULL;
+ uint32_t new_blk_no;
+ uint32_t new_size;
+ uint32_t new_blockcnt;
zero_buffer = zalloc(fs->blksz);
if (!zero_buffer) {
@@ -396,7 +425,7 @@ restart:
goto fail;
dir = (struct ext2_dirent *)root_first_block_buffer;
totalbytes = 0;
- while (dir->direntlen > 0) {
+ while (le16_to_cpu(dir->direntlen) > 0) {
/*
* blocksize-totalbytes because last directory length
* i.e. dir->direntlen is free availble space in the
@@ -405,7 +434,7 @@ restart:
*/
/* traversing the each directory entry */
- if (fs->blksz - totalbytes == dir->direntlen) {
+ if (fs->blksz - totalbytes == le16_to_cpu(dir->direntlen)) {
if (strlen(filename) % 4 != 0)
padding_factor = 4 - (strlen(filename) % 4);
@@ -430,32 +459,34 @@ restart:
printf("Directory exceeds limit\n");
goto fail;
}
- g_parent_inode->b.blocks.dir_blocks
- [direct_blk_idx] = ext4fs_get_new_blk_no();
- if (g_parent_inode->b.blocks.dir_blocks
- [direct_blk_idx] == -1) {
+ new_blk_no = ext4fs_get_new_blk_no();
+ if (new_blk_no == -1) {
printf("no block left to assign\n");
goto fail;
}
- put_ext4(((uint64_t)
- ((uint64_t)g_parent_inode->b.
- blocks.dir_blocks[direct_blk_idx] *
- (uint64_t)fs->blksz)), zero_buffer, fs->blksz);
- g_parent_inode->size =
- g_parent_inode->size + fs->blksz;
- g_parent_inode->blockcnt =
- g_parent_inode->blockcnt + fs->sect_perblk;
+ put_ext4((uint64_t)new_blk_no * fs->blksz, zero_buffer, fs->blksz);
+ g_parent_inode->b.blocks.dir_blocks[direct_blk_idx] =
+ cpu_to_le32(new_blk_no);
+
+ new_size = le32_to_cpu(g_parent_inode->size);
+ new_size += fs->blksz;
+ g_parent_inode->size = cpu_to_le32(new_size);
+
+ new_blockcnt = le32_to_cpu(g_parent_inode->blockcnt);
+ new_blockcnt += fs->sect_perblk;
+ g_parent_inode->blockcnt = cpu_to_le32(new_blockcnt);
+
if (ext4fs_put_metadata
(root_first_block_buffer,
first_block_no_of_root))
goto fail;
goto restart;
}
- dir->direntlen = last_entry_dirlen;
+ dir->direntlen = cpu_to_le16(last_entry_dirlen);
break;
}
- templength = dir->direntlen;
+ templength = le16_to_cpu(dir->direntlen);
totalbytes = totalbytes + templength;
sizeof_void_space = check_void_in_dentry(dir, filename);
if (sizeof_void_space)
@@ -465,7 +496,7 @@ restart:
}
/* make a pointer ready for creating next directory entry */
- templength = dir->direntlen;
+ templength = le16_to_cpu(dir->direntlen);
totalbytes = totalbytes + templength;
dir = (struct ext2_dirent *)((char *)dir + templength);
@@ -475,11 +506,11 @@ restart:
printf("no inode left to assign\n");
goto fail;
}
- dir->inode = inodeno;
+ dir->inode = cpu_to_le32(inodeno);
if (sizeof_void_space)
- dir->direntlen = sizeof_void_space;
+ dir->direntlen = cpu_to_le16(sizeof_void_space);
else
- dir->direntlen = fs->blksz - totalbytes;
+ dir->direntlen = cpu_to_le16(fs->blksz - totalbytes);
dir->namelen = strlen(filename);
dir->filetype = FILETYPE_REG; /* regular file */
@@ -534,7 +565,7 @@ static int search_dir(struct ext2_inode *parent_inode, char *dirname)
dir = (struct ext2_dirent *)block_buffer;
ptr = (char *)dir;
totalbytes = 0;
- while (dir->direntlen >= 0) {
+ while (le16_to_cpu(dir->direntlen) >= 0) {
/*
* blocksize-totalbytes because last directory
* length i.e.,*dir->direntlen is free availble
@@ -542,23 +573,23 @@ static int search_dir(struct ext2_inode *parent_inode, char *dirname)
* it is a last entry of directory entry
*/
if (strlen(dirname) == dir->namelen) {
- if (strncmp(dirname, ptr +
- sizeof(struct ext2_dirent),
- dir->namelen) == 0) {
- previous_dir->direntlen +=
- dir->direntlen;
- inodeno = dir->inode;
+ if (strncmp(dirname, ptr + sizeof(struct ext2_dirent), dir->namelen) == 0) {
+ uint16_t new_len;
+ new_len = le16_to_cpu(previous_dir->direntlen);
+ new_len += le16_to_cpu(dir->direntlen);
+ previous_dir->direntlen = cpu_to_le16(new_len);
+ inodeno = le32_to_cpu(dir->inode);
dir->inode = 0;
found = 1;
break;
}
}
- if (fs->blksz - totalbytes == dir->direntlen)
+ if (fs->blksz - totalbytes == le16_to_cpu(dir->direntlen))
break;
/* traversing the each directory entry */
- templength = dir->direntlen;
+ templength = le16_to_cpu(dir->direntlen);
totalbytes = totalbytes + templength;
previous_dir = dir;
dir = (struct ext2_dirent *)((char *)dir + templength);
@@ -720,7 +751,7 @@ end:
if (matched_inode_no != -1) {
ext4fs_iget(matched_inode_no, &temp_inode);
- if (temp_inode.mode & S_IFDIR) {
+ if (le16_to_cpu(temp_inode.mode) & S_IFDIR) {
printf("It is a Directory\n");
result_inode_no = -1;
goto fail;
@@ -780,7 +811,7 @@ static int check_filename(char *filename, unsigned int blknr)
dir = (struct ext2_dirent *)root_first_block_buffer;
ptr = (char *)dir;
totalbytes = 0;
- while (dir->direntlen >= 0) {
+ while (le16_to_cpu(dir->direntlen) >= 0) {
/*
* blocksize-totalbytes because last
* directory length i.e., *dir->direntlen
@@ -790,20 +821,23 @@ static int check_filename(char *filename, unsigned int blknr)
if (strlen(filename) == dir->namelen) {
if (strncmp(filename, ptr + sizeof(struct ext2_dirent),
dir->namelen) == 0) {
+ uint16_t new_len;
printf("file found deleting\n");
- previous_dir->direntlen += dir->direntlen;
- inodeno = dir->inode;
+ new_len = le16_to_cpu(previous_dir->direntlen);
+ new_len += le16_to_cpu(dir->direntlen);
+ previous_dir->direntlen = cpu_to_le16(new_len);
+ inodeno = le32_to_cpu(dir->inode);
dir->inode = 0;
found = 1;
break;
}
}
- if (fs->blksz - totalbytes == dir->direntlen)
+ if (fs->blksz - totalbytes == le16_to_cpu(dir->direntlen))
break;
/* traversing the each directory entry */
- templength = dir->direntlen;
+ templength = le16_to_cpu(dir->direntlen);
totalbytes = totalbytes + templength;
previous_dir = dir;
dir = (struct ext2_dirent *)((char *)dir + templength);
@@ -843,14 +877,14 @@ int ext4fs_filename_check(char *filename)
return -1;
}
-long int ext4fs_get_new_blk_no(void)
+uint32_t ext4fs_get_new_blk_no(void)
{
short i;
short status;
int remainder;
unsigned int bg_idx;
static int prev_bg_bitmap_index = -1;
- unsigned int blk_per_grp = ext4fs_root->sblock.blocks_per_group;
+ unsigned int blk_per_grp = le32_to_cpu(ext4fs_root->sblock.blocks_per_group);
struct ext_filesystem *fs = get_fs();
char *journal_buffer = zalloc(fs->blksz);
char *zero_buffer = zalloc(fs->blksz);
@@ -860,14 +894,13 @@ long int ext4fs_get_new_blk_no(void)
if (fs->first_pass_bbmap == 0) {
for (i = 0; i < fs->no_blkgrp; i++) {
- if (bgd[i].free_blocks) {
- if (bgd[i].bg_flags & EXT4_BG_BLOCK_UNINIT) {
- put_ext4(((uint64_t) ((uint64_t)bgd[i].block_id *
- (uint64_t)fs->blksz)),
+ if (le16_to_cpu(bgd[i].free_blocks)) {
+ if (le16_to_cpu(bgd[i].bg_flags) & EXT4_BG_BLOCK_UNINIT) {
+ uint16_t new_flags;
+ put_ext4((uint64_t)le32_to_cpu(bgd[i].block_id) * fs->blksz,
zero_buffer, fs->blksz);
- bgd[i].bg_flags =
- bgd[i].
- bg_flags & ~EXT4_BG_BLOCK_UNINIT;
+ new_flags = le16_to_cpu(bgd[i].bg_flags) & ~EXT4_BG_BLOCK_UNINIT;
+ bgd[i].bg_flags = cpu_to_le16(new_flags);
memcpy(fs->blk_bmaps[i], zero_buffer,
fs->blksz);
}
@@ -879,17 +912,17 @@ long int ext4fs_get_new_blk_no(void)
fs->curr_blkno = fs->curr_blkno +
(i * fs->blksz * 8);
fs->first_pass_bbmap++;
- bgd[i].free_blocks--;
- fs->sb->free_blocks--;
- status = ext4fs_devread((lbaint_t)
- bgd[i].block_id *
+ ext4fs_bg_free_blocks_dec(&bgd[i]);
+ ext4fs_sb_free_blocks_dec(fs->sb);
+ status = ext4fs_devread(
+ (lbaint_t)le32_to_cpu(bgd[i].block_id) *
fs->sect_perblk, 0,
fs->blksz,
journal_buffer);
if (status == 0)
goto fail;
if (ext4fs_log_journal(journal_buffer,
- bgd[i].block_id))
+ le32_to_cpu(bgd[i].block_id)))
goto fail;
goto success;
} else {
@@ -923,13 +956,14 @@ restart:
goto restart;
}
- if (bgd[bg_idx].bg_flags & EXT4_BG_BLOCK_UNINIT) {
+ if (le16_to_cpu(bgd[bg_idx].bg_flags) & EXT4_BG_BLOCK_UNINIT) {
+ uint16_t new_flags;
memset(zero_buffer, '\0', fs->blksz);
- put_ext4(((uint64_t) ((uint64_t)bgd[bg_idx].block_id *
- (uint64_t)fs->blksz)), zero_buffer, fs->blksz);
+ put_ext4((uint64_t)le32_to_cpu(bgd[bg_idx].block_id) * fs->blksz,
+ zero_buffer, fs->blksz);
memcpy(fs->blk_bmaps[bg_idx], zero_buffer, fs->blksz);
- bgd[bg_idx].bg_flags = bgd[bg_idx].bg_flags &
- ~EXT4_BG_BLOCK_UNINIT;
+ new_flags = le16_to_cpu(bgd[bg_idx].bg_flags) & ~EXT4_BG_BLOCK_UNINIT;
+ bgd[bg_idx].bg_flags = cpu_to_le16(new_flags);
}
if (ext4fs_set_block_bmap(fs->curr_blkno, fs->blk_bmaps[bg_idx],
@@ -942,19 +976,20 @@ restart:
/* journal backup */
if (prev_bg_bitmap_index != bg_idx) {
memset(journal_buffer, '\0', fs->blksz);
- status = ext4fs_devread((lbaint_t)bgd[bg_idx].block_id
+ status = ext4fs_devread(
+ (lbaint_t)le32_to_cpu(bgd[bg_idx].block_id)
* fs->sect_perblk,
0, fs->blksz, journal_buffer);
if (status == 0)
goto fail;
if (ext4fs_log_journal(journal_buffer,
- bgd[bg_idx].block_id))
+ le32_to_cpu(bgd[bg_idx].block_id)))
goto fail;
prev_bg_bitmap_index = bg_idx;
}
- bgd[bg_idx].free_blocks--;
- fs->sb->free_blocks--;
+ ext4fs_bg_free_blocks_dec(&bgd[bg_idx]);
+ ext4fs_sb_free_blocks_dec(fs->sb);
goto success;
}
success:
@@ -975,7 +1010,7 @@ int ext4fs_get_new_inode_no(void)
short status;
unsigned int ibmap_idx;
static int prev_inode_bitmap_index = -1;
- unsigned int inodes_per_grp = ext4fs_root->sblock.inodes_per_group;
+ unsigned int inodes_per_grp = le32_to_cpu(ext4fs_root->sblock.inodes_per_group);
struct ext_filesystem *fs = get_fs();
char *journal_buffer = zalloc(fs->blksz);
char *zero_buffer = zalloc(fs->blksz);
@@ -990,13 +1025,12 @@ int ext4fs_get_new_inode_no(void)
bgd[i].free_inodes)
bgd[i].bg_itable_unused =
bgd[i].free_inodes;
- if (bgd[i].bg_flags & EXT4_BG_INODE_UNINIT) {
- put_ext4(((uint64_t)
- ((uint64_t)bgd[i].inode_id *
- (uint64_t)fs->blksz)),
+ if (le16_to_cpu(bgd[i].bg_flags) & EXT4_BG_INODE_UNINIT) {
+ int new_flags;
+ put_ext4((uint64_t)le32_to_cpu(bgd[i].inode_id) * fs->blksz,
zero_buffer, fs->blksz);
- bgd[i].bg_flags = bgd[i].bg_flags &
- ~EXT4_BG_INODE_UNINIT;
+ new_flags = le16_to_cpu(bgd[i].bg_flags) & ~EXT4_BG_INODE_UNINIT;
+ bgd[i].bg_flags = cpu_to_le16(new_flags);
memcpy(fs->inode_bmaps[i],
zero_buffer, fs->blksz);
}
@@ -1008,18 +1042,18 @@ int ext4fs_get_new_inode_no(void)
fs->curr_inode_no = fs->curr_inode_no +
(i * inodes_per_grp);
fs->first_pass_ibmap++;
- bgd[i].free_inodes--;
- bgd[i].bg_itable_unused--;
- fs->sb->free_inodes--;
- status = ext4fs_devread((lbaint_t)
- bgd[i].inode_id *
+ ext4fs_bg_free_inodes_dec(&bgd[i]);
+ ext4fs_bg_itable_unused_dec(&bgd[i]);
+ ext4fs_sb_free_inodes_dec(fs->sb);
+ status = ext4fs_devread(
+ (lbaint_t)le32_to_cpu(bgd[i].inode_id) *
fs->sect_perblk, 0,
fs->blksz,
journal_buffer);
if (status == 0)
goto fail;
if (ext4fs_log_journal(journal_buffer,
- bgd[i].inode_id))
+ le32_to_cpu(bgd[i].inode_id)))
goto fail;
goto success;
} else
@@ -1031,13 +1065,13 @@ restart:
fs->curr_inode_no++;
/* get the blockbitmap index respective to blockno */
ibmap_idx = fs->curr_inode_no / inodes_per_grp;
- if (bgd[ibmap_idx].bg_flags & EXT4_BG_INODE_UNINIT) {
+ if (le16_to_cpu(bgd[ibmap_idx].bg_flags) & EXT4_BG_INODE_UNINIT) {
+ int new_flags;
memset(zero_buffer, '\0', fs->blksz);
- put_ext4(((uint64_t) ((uint64_t)bgd[ibmap_idx].inode_id *
- (uint64_t)fs->blksz)), zero_buffer,
- fs->blksz);
- bgd[ibmap_idx].bg_flags =
- bgd[ibmap_idx].bg_flags & ~EXT4_BG_INODE_UNINIT;
+ put_ext4((uint64_t)le32_to_cpu(bgd[ibmap_idx].inode_id) * fs->blksz,
+ zero_buffer, fs->blksz);
+ new_flags = le16_to_cpu(bgd[ibmap_idx].bg_flags) & ~EXT4_BG_INODE_UNINIT;
+ bgd[ibmap_idx].bg_flags = cpu_to_le16(new_flags);
memcpy(fs->inode_bmaps[ibmap_idx], zero_buffer,
fs->blksz);
}
@@ -1053,14 +1087,14 @@ restart:
/* journal backup */
if (prev_inode_bitmap_index != ibmap_idx) {
memset(journal_buffer, '\0', fs->blksz);
- status = ext4fs_devread((lbaint_t)
- bgd[ibmap_idx].inode_id
+ status = ext4fs_devread(
+ (lbaint_t)le32_to_cpu(bgd[ibmap_idx].inode_id)
* fs->sect_perblk,
0, fs->blksz, journal_buffer);
if (status == 0)
goto fail;
if (ext4fs_log_journal(journal_buffer,
- bgd[ibmap_idx].inode_id))
+ le32_to_cpu(bgd[ibmap_idx].inode_id)))
goto fail;
prev_inode_bitmap_index = ibmap_idx;
}
@@ -1068,9 +1102,9 @@ restart:
bgd[ibmap_idx].free_inodes)
bgd[ibmap_idx].bg_itable_unused =
bgd[ibmap_idx].free_inodes;
- bgd[ibmap_idx].free_inodes--;
- bgd[ibmap_idx].bg_itable_unused--;
- fs->sb->free_inodes--;
+ ext4fs_bg_free_inodes_dec(&bgd[ibmap_idx]);
+ ext4fs_bg_itable_unused_dec(&bgd[ibmap_idx]);
+ ext4fs_sb_free_inodes_dec(fs->sb);
goto success;
}
@@ -1097,8 +1131,8 @@ static void alloc_single_indirect_block(struct ext2_inode *file_inode,
long int actual_block_no;
long int si_blockno;
/* si :single indirect */
- unsigned int *si_buffer = NULL;
- unsigned int *si_start_addr = NULL;
+ __le32 *si_buffer = NULL;
+ __le32 *si_start_addr = NULL;
struct ext_filesystem *fs = get_fs();
if (*total_remaining_blocks != 0) {
@@ -1128,7 +1162,7 @@ static void alloc_single_indirect_block(struct ext2_inode *file_inode,
printf("no block left to assign\n");
goto fail;
}
- *si_buffer = actual_block_no;
+ *si_buffer = cpu_to_le32(actual_block_no);
debug("SIAB %u: %u\n", *si_buffer,
*total_remaining_blocks);
@@ -1141,7 +1175,7 @@ static void alloc_single_indirect_block(struct ext2_inode *file_inode,
/* write the block to disk */
put_ext4(((uint64_t) ((uint64_t)si_blockno * (uint64_t)fs->blksz)),
si_start_addr, fs->blksz);
- file_inode->b.blocks.indir_block = si_blockno;
+ file_inode->b.blocks.indir_block = cpu_to_le32(si_blockno);
}
fail:
free(si_start_addr);
@@ -1158,10 +1192,10 @@ static void alloc_double_indirect_block(struct ext2_inode *file_inode,
/* di:double indirect */
long int di_blockno_parent;
long int di_blockno_child;
- unsigned int *di_parent_buffer = NULL;
- unsigned int *di_child_buff = NULL;
- unsigned int *di_block_start_addr = NULL;
- unsigned int *di_child_buff_start = NULL;
+ __le32 *di_parent_buffer = NULL;
+ __le32 *di_child_buff = NULL;
+ __le32 *di_block_start_addr = NULL;
+ __le32 *di_child_buff_start = NULL;
struct ext_filesystem *fs = get_fs();
if (*total_remaining_blocks != 0) {
@@ -1205,7 +1239,7 @@ static void alloc_double_indirect_block(struct ext2_inode *file_inode,
goto fail;
di_child_buff_start = di_child_buff;
- *di_parent_buffer = di_blockno_child;
+ *di_parent_buffer = cpu_to_le32(di_blockno_child);
di_parent_buffer++;
(*no_blks_reqd)++;
debug("DICB %ld: %u\n", di_blockno_child,
@@ -1228,7 +1262,7 @@ static void alloc_double_indirect_block(struct ext2_inode *file_inode,
printf("no block left to assign\n");
goto fail;
}
- *di_child_buff = actual_block_no;
+ *di_child_buff = cpu_to_le32(actual_block_no);
debug("DIAB %ld: %u\n", actual_block_no,
*total_remaining_blocks);
@@ -1248,7 +1282,7 @@ static void alloc_double_indirect_block(struct ext2_inode *file_inode,
}
put_ext4(((uint64_t) ((uint64_t)di_blockno_parent * (uint64_t)fs->blksz)),
di_block_start_addr, fs->blksz);
- file_inode->b.blocks.double_indir_block = di_blockno_parent;
+ file_inode->b.blocks.double_indir_block = cpu_to_le32(di_blockno_parent);
}
fail:
free(di_block_start_addr);
@@ -1266,12 +1300,12 @@ static void alloc_triple_indirect_block(struct ext2_inode *file_inode,
long int ti_gp_blockno;
long int ti_parent_blockno;
long int ti_child_blockno;
- unsigned int *ti_gp_buff = NULL;
- unsigned int *ti_parent_buff = NULL;
- unsigned int *ti_child_buff = NULL;
- unsigned int *ti_gp_buff_start_addr = NULL;
- unsigned int *ti_pbuff_start_addr = NULL;
- unsigned int *ti_cbuff_start_addr = NULL;
+ __le32 *ti_gp_buff = NULL;
+ __le32 *ti_parent_buff = NULL;
+ __le32 *ti_child_buff = NULL;
+ __le32 *ti_gp_buff_start_addr = NULL;
+ __le32 *ti_pbuff_start_addr = NULL;
+ __le32 *ti_cbuff_start_addr = NULL;
struct ext_filesystem *fs = get_fs();
if (*total_remaining_blocks != 0) {
/* triple indirect grand parent block connecting to inode */
@@ -1301,7 +1335,7 @@ static void alloc_triple_indirect_block(struct ext2_inode *file_inode,
goto fail;
ti_pbuff_start_addr = ti_parent_buff;
- *ti_gp_buff = ti_parent_blockno;
+ *ti_gp_buff = cpu_to_le32(ti_parent_blockno);
ti_gp_buff++;
(*no_blks_reqd)++;
debug("TIPB %ld: %u\n", ti_parent_blockno,
@@ -1319,7 +1353,7 @@ static void alloc_triple_indirect_block(struct ext2_inode *file_inode,
goto fail1;
ti_cbuff_start_addr = ti_child_buff;
- *ti_parent_buff = ti_child_blockno;
+ *ti_parent_buff = cpu_to_le32(ti_child_blockno);
ti_parent_buff++;
(*no_blks_reqd)++;
debug("TICB %ld: %u\n", ti_parent_blockno,
@@ -1335,7 +1369,7 @@ static void alloc_triple_indirect_block(struct ext2_inode *file_inode,
free(ti_cbuff_start_addr);
goto fail1;
}
- *ti_child_buff = actual_block_no;
+ *ti_child_buff = cpu_to_le32(actual_block_no);
debug("TIAB %ld: %u\n", actual_block_no,
*total_remaining_blocks);
@@ -1364,7 +1398,7 @@ static void alloc_triple_indirect_block(struct ext2_inode *file_inode,
/* write the grand parent block */
put_ext4(((uint64_t) ((uint64_t)ti_gp_blockno * (uint64_t)fs->blksz)),
ti_gp_buff_start_addr, fs->blksz);
- file_inode->b.blocks.triple_indir_block = ti_gp_blockno;
+ file_inode->b.blocks.triple_indir_block = cpu_to_le32(ti_gp_blockno);
free(ti_gp_buff_start_addr);
return;
}
@@ -1389,7 +1423,7 @@ void ext4fs_allocate_blocks(struct ext2_inode *file_inode,
printf("no block left to assign\n");
return;
}
- file_inode->b.blocks.dir_blocks[i] = direct_blockno;
+ file_inode->b.blocks.dir_blocks[i] = cpu_to_le32(direct_blockno);
debug("DB %ld: %u\n", direct_blockno, total_remaining_blocks);
total_remaining_blocks--;
@@ -1420,7 +1454,7 @@ static struct ext4_extent_header *ext4fs_get_extent_block
index = (struct ext4_extent_idx *)(ext_block + 1);
if (le16_to_cpu(ext_block->eh_magic) != EXT4_EXT_MAGIC)
- return 0;
+ return NULL;
if (ext_block->eh_depth == 0)
return ext_block;
@@ -1432,7 +1466,7 @@ static struct ext4_extent_header *ext4fs_get_extent_block
} while (fileblock >= le32_to_cpu(index[i].ei_block));
if (--i < 0)
- return 0;
+ return NULL;
block = le16_to_cpu(index[i].ei_leaf_hi);
block = (block << 32) + le32_to_cpu(index[i].ei_leaf_lo);
@@ -1441,7 +1475,7 @@ static struct ext4_extent_header *ext4fs_get_extent_block
buf))
ext_block = (struct ext4_extent_header *)buf;
else
- return 0;
+ return NULL;
}
}
@@ -2034,11 +2068,11 @@ static char *ext4fs_read_symlink(struct ext2fs_node *node)
if (!diro->inode_read) {
status = ext4fs_read_inode(diro->data, diro->ino, &diro->inode);
if (status == 0)
- return 0;
+ return NULL;
}
symlink = zalloc(le32_to_cpu(diro->inode.size) + 1);
if (!symlink)
- return 0;
+ return NULL;
if (le32_to_cpu(diro->inode.size) < sizeof(diro->inode.b.symlink)) {
strncpy(symlink, diro->inode.b.symlink,
@@ -2049,7 +2083,7 @@ static char *ext4fs_read_symlink(struct ext2fs_node *node)
symlink, &actread);
if ((status < 0) || (actread == 0)) {
free(symlink);
- return 0;
+ return NULL;
}
}
symlink[le32_to_cpu(diro->inode.size)] = '\0';
@@ -2234,7 +2268,7 @@ int ext4fs_mount(unsigned part_length)
* and we do not support metadata_csum (and cannot reliably find
* files when it is set. Refuse to mount.
*/
- if (data->sblock.feature_incompat & EXT4_FEATURE_INCOMPAT_64BIT) {
+ if (le32_to_cpu(data->sblock.feature_incompat) & EXT4_FEATURE_INCOMPAT_64BIT) {
printf("Unsupported feature found (64bit, possibly metadata_csum), not mounting\n");
goto fail;
}
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-17 09:08:37 +0000