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Diffstat (limited to 'fs/ext4/ext4_write.c')
-rw-r--r--fs/ext4/ext4_write.c32
1 files changed, 17 insertions, 15 deletions
diff --git a/fs/ext4/ext4_write.c b/fs/ext4/ext4_write.c
index c4e399ccfa..0c1f62b60c 100644
--- a/fs/ext4/ext4_write.c
+++ b/fs/ext4/ext4_write.c
@@ -614,14 +614,13 @@ int ext4fs_init(void)
/* populate fs */
fs->blksz = EXT2_BLOCK_SIZE(ext4fs_root);
fs->inodesz = INODE_SIZE_FILESYSTEM(ext4fs_root);
- fs->sect_perblk = fs->blksz / SECTOR_SIZE;
+ fs->sect_perblk = fs->blksz >> fs->dev_desc->log2blksz;
/* get the superblock */
fs->sb = zalloc(SUPERBLOCK_SIZE);
if (!fs->sb)
return -ENOMEM;
- if (!ext4fs_devread(SUPERBLOCK_SECTOR, 0, SUPERBLOCK_SIZE,
- (char *)fs->sb))
+ if (!ext4_read_superblock((char *)fs->sb))
goto fail;
/* init journal */
@@ -722,7 +721,7 @@ void ext4fs_deinit(void)
ext4fs_free_journal();
/* get the superblock */
- ext4fs_devread(SUPERBLOCK_SECTOR, 0, SUPERBLOCK_SIZE, (char *)fs->sb);
+ ext4_read_superblock((char *)fs->sb);
fs->sb->feature_incompat &= ~EXT3_FEATURE_INCOMPAT_RECOVER;
put_ext4((uint64_t)(SUPERBLOCK_SIZE),
(struct ext2_sblock *)fs->sb, (uint32_t)SUPERBLOCK_SIZE);
@@ -766,9 +765,10 @@ static int ext4fs_write_file(struct ext2_inode *file_inode,
{
int i;
int blockcnt;
- int log2blocksize = LOG2_EXT2_BLOCK_SIZE(ext4fs_root);
unsigned int filesize = __le32_to_cpu(file_inode->size);
struct ext_filesystem *fs = get_fs();
+ int log2blksz = fs->dev_desc->log2blksz;
+ int log2_fs_blocksize = LOG2_BLOCK_SIZE(ext4fs_root) - log2blksz;
int previous_block_number = -1;
int delayed_start = 0;
int delayed_extent = 0;
@@ -789,16 +789,16 @@ static int ext4fs_write_file(struct ext2_inode *file_inode,
if (blknr < 0)
return -1;
- blknr = blknr << log2blocksize;
+ blknr = blknr << log2_fs_blocksize;
if (blknr) {
if (previous_block_number != -1) {
if (delayed_next == blknr) {
delayed_extent += blockend;
- delayed_next += blockend >> SECTOR_BITS;
+ delayed_next += blockend >> log2blksz;
} else { /* spill */
- put_ext4((uint64_t) (delayed_start *
- SECTOR_SIZE),
+ put_ext4((uint64_t)
+ (delayed_start << log2blksz),
delayed_buf,
(uint32_t) delayed_extent);
previous_block_number = blknr;
@@ -806,7 +806,7 @@ static int ext4fs_write_file(struct ext2_inode *file_inode,
delayed_extent = blockend;
delayed_buf = buf;
delayed_next = blknr +
- (blockend >> SECTOR_BITS);
+ (blockend >> log2blksz);
}
} else {
previous_block_number = blknr;
@@ -814,13 +814,14 @@ static int ext4fs_write_file(struct ext2_inode *file_inode,
delayed_extent = blockend;
delayed_buf = buf;
delayed_next = blknr +
- (blockend >> SECTOR_BITS);
+ (blockend >> log2blksz);
}
} else {
if (previous_block_number != -1) {
/* spill */
- put_ext4((uint64_t) (delayed_start *
- SECTOR_SIZE), delayed_buf,
+ put_ext4((uint64_t) (delayed_start <<
+ log2blksz),
+ delayed_buf,
(uint32_t) delayed_extent);
previous_block_number = -1;
}
@@ -830,7 +831,7 @@ static int ext4fs_write_file(struct ext2_inode *file_inode,
}
if (previous_block_number != -1) {
/* spill */
- put_ext4((uint64_t) (delayed_start * SECTOR_SIZE),
+ put_ext4((uint64_t) (delayed_start << log2blksz),
delayed_buf, (uint32_t) delayed_extent);
previous_block_number = -1;
}
@@ -921,7 +922,8 @@ int ext4fs_write(const char *fname, unsigned char *buffer,
/* Allocate data blocks */
ext4fs_allocate_blocks(file_inode, blocks_remaining,
&blks_reqd_for_file);
- file_inode->blockcnt = (blks_reqd_for_file * fs->blksz) / SECTOR_SIZE;
+ file_inode->blockcnt = (blks_reqd_for_file * fs->blksz) >>
+ fs->dev_desc->log2blksz;
temp_ptr = zalloc(fs->blksz);
if (!temp_ptr)