*/
static unsigned long blocks_for_truncate(struct inode *inode)
{
- unsigned long needed;
+ ext4_lblk_t needed;
needed = inode->i_blocks >> (inode->i_sb->s_blocksize_bits - 9);
*/
static int ext4_block_to_path(struct inode *inode,
- long i_block, int offsets[4], int *boundary)
+ ext4_lblk_t i_block,
+ ext4_lblk_t offsets[4], int *boundary)
{
int ptrs = EXT4_ADDR_PER_BLOCK(inode->i_sb);
int ptrs_bits = EXT4_ADDR_PER_BLOCK_BITS(inode->i_sb);
offsets[n++] = i_block & (ptrs - 1);
final = ptrs;
} else {
- ext4_warning(inode->i_sb, "ext4_block_to_path", "block > big");
+ ext4_warning(inode->i_sb, "ext4_block_to_path",
+ "block %u > max",
+ i_block + direct_blocks +
+ indirect_blocks + double_blocks);
}
if (boundary)
*boundary = final - 1 - (i_block & (ptrs - 1));
* or when it reads all @depth-1 indirect blocks successfully and finds
* the whole chain, all way to the data (returns %NULL, *err == 0).
*/
-static Indirect *ext4_get_branch(struct inode *inode, int depth, int *offsets,
+static Indirect *ext4_get_branch(struct inode *inode, int depth,
+ ext4_lblk_t *offsets,
Indirect chain[4], int *err)
{
struct super_block *sb = inode->i_sb;
* stores it in *@goal and returns zero.
*/
-static ext4_fsblk_t ext4_find_goal(struct inode *inode, long block,
+static ext4_fsblk_t ext4_find_goal(struct inode *inode, ext4_lblk_t block,
Indirect chain[4], Indirect *partial)
{
struct ext4_block_alloc_info *block_i;
*/
static int ext4_alloc_branch(handle_t *handle, struct inode *inode,
int indirect_blks, int *blks, ext4_fsblk_t goal,
- int *offsets, Indirect *branch)
+ ext4_lblk_t *offsets, Indirect *branch)
{
int blocksize = inode->i_sb->s_blocksize;
int i, n = 0;
* chain to new block and return 0.
*/
static int ext4_splice_branch(handle_t *handle, struct inode *inode,
- long block, Indirect *where, int num, int blks)
+ ext4_lblk_t block, Indirect *where, int num, int blks)
{
int i;
int err = 0;
* return < 0, error case.
*/
int ext4_get_blocks_handle(handle_t *handle, struct inode *inode,
- sector_t iblock, unsigned long maxblocks,
+ ext4_lblk_t iblock, unsigned long maxblocks,
struct buffer_head *bh_result,
int create, int extend_disksize)
{
int err = -EIO;
- int offsets[4];
+ ext4_lblk_t offsets[4];
Indirect chain[4];
Indirect *partial;
ext4_fsblk_t goal;
J_ASSERT(!(EXT4_I(inode)->i_flags & EXT4_EXTENTS_FL));
J_ASSERT(handle != NULL || create == 0);
- depth = ext4_block_to_path(inode,iblock,offsets,&blocks_to_boundary);
+ depth = ext4_block_to_path(inode, iblock, offsets,
+ &blocks_to_boundary);
if (depth == 0)
goto out;
* `handle' can be NULL if create is zero
*/
struct buffer_head *ext4_getblk(handle_t *handle, struct inode *inode,
- long block, int create, int *errp)
+ ext4_lblk_t block, int create, int *errp)
{
struct buffer_head dummy;
int fatal = 0, err;
}
if (buffer_new(&dummy)) {
J_ASSERT(create != 0);
- J_ASSERT(handle != 0);
+ J_ASSERT(handle != NULL);
/*
* Now that we do not always journal data, we should
}
struct buffer_head *ext4_bread(handle_t *handle, struct inode *inode,
- int block, int create, int *err)
+ ext4_lblk_t block, int create, int *err)
{
struct buffer_head * bh;
{
ext4_fsblk_t index = from >> PAGE_CACHE_SHIFT;
unsigned offset = from & (PAGE_CACHE_SIZE-1);
- unsigned blocksize, iblock, length, pos;
+ unsigned blocksize, length, pos;
+ ext4_lblk_t iblock;
struct inode *inode = mapping->host;
struct buffer_head *bh;
int err = 0;
* (no partially truncated stuff there). */
static Indirect *ext4_find_shared(struct inode *inode, int depth,
- int offsets[4], Indirect chain[4], __le32 *top)
+ ext4_lblk_t offsets[4], Indirect chain[4], __le32 *top)
{
Indirect *partial, *p;
int k, err;
for (p = first; p < last; p++) {
u32 nr = le32_to_cpu(*p);
if (nr) {
- struct buffer_head *bh;
+ struct buffer_head *tbh;
*p = 0;
- bh = sb_find_get_block(inode->i_sb, nr);
- ext4_forget(handle, 0, inode, bh, nr);
+ tbh = sb_find_get_block(inode->i_sb, nr);
+ ext4_forget(handle, 0, inode, tbh, nr);
}
}
__le32 *i_data = ei->i_data;
int addr_per_block = EXT4_ADDR_PER_BLOCK(inode->i_sb);
struct address_space *mapping = inode->i_mapping;
- int offsets[4];
+ ext4_lblk_t offsets[4];
Indirect chain[4];
Indirect *partial;
__le32 nr = 0;
int n;
- long last_block;
+ ext4_lblk_t last_block;
unsigned blocksize = inode->i_sb->s_blocksize;
struct page *page;
return;
}
- if (EXT4_I(inode)->i_flags & EXT4_EXTENTS_FL)
- return ext4_ext_truncate(inode, page);
+ if (EXT4_I(inode)->i_flags & EXT4_EXTENTS_FL) {
+ ext4_ext_truncate(inode, page);
+ return;
+ }
handle = start_transaction(inode);
if (IS_ERR(handle)) {
static ext4_fsblk_t ext4_get_inode_block(struct super_block *sb,
unsigned long ino, struct ext4_iloc *iloc)
{
- unsigned long desc, group_desc, block_group;
+ unsigned long desc, group_desc;
+ ext4_group_t block_group;
unsigned long offset;
ext4_fsblk_t block;
struct buffer_head *bh;
struct ext4_group_desc *desc;
int inodes_per_buffer;
int inode_offset, i;
- int block_group;
+ ext4_group_t block_group;
int start;
block_group = (inode->i_ino - 1) /
if (flags & S_DIRSYNC)
ei->i_flags |= EXT4_DIRSYNC_FL;
}
+static blkcnt_t ext4_inode_blocks(struct ext4_inode *raw_inode,
+ struct ext4_inode_info *ei)
+{
+ blkcnt_t i_blocks ;
+ struct inode *inode = &(ei->vfs_inode);
+ struct super_block *sb = inode->i_sb;
+
+ if (EXT4_HAS_RO_COMPAT_FEATURE(sb,
+ EXT4_FEATURE_RO_COMPAT_HUGE_FILE)) {
+ /* we are using combined 48 bit field */
+ i_blocks = ((u64)le16_to_cpu(raw_inode->i_blocks_high)) << 32 |
+ le32_to_cpu(raw_inode->i_blocks_lo);
+ if (ei->i_flags & EXT4_HUGE_FILE_FL) {
+ /* i_blocks represent file system block size */
+ return i_blocks << (inode->i_blkbits - 9);
+ } else {
+ return i_blocks;
+ }
+ } else {
+ return le32_to_cpu(raw_inode->i_blocks_lo);
+ }
+}
void ext4_read_inode(struct inode * inode)
{
inode->i_gid |= le16_to_cpu(raw_inode->i_gid_high) << 16;
}
inode->i_nlink = le16_to_cpu(raw_inode->i_links_count);
- inode->i_size = le32_to_cpu(raw_inode->i_size);
ei->i_state = 0;
ei->i_dir_start_lookup = 0;
* recovery code: that's fine, we're about to complete
* the process of deleting those. */
}
- inode->i_blocks = le32_to_cpu(raw_inode->i_blocks);
ei->i_flags = le32_to_cpu(raw_inode->i_flags);
- ei->i_file_acl = le32_to_cpu(raw_inode->i_file_acl);
+ inode->i_blocks = ext4_inode_blocks(raw_inode, ei);
+ ei->i_file_acl = le32_to_cpu(raw_inode->i_file_acl_lo);
if (EXT4_SB(inode->i_sb)->s_es->s_creator_os !=
- cpu_to_le32(EXT4_OS_HURD))
+ cpu_to_le32(EXT4_OS_HURD)) {
ei->i_file_acl |=
((__u64)le16_to_cpu(raw_inode->i_file_acl_high)) << 32;
- if (!S_ISREG(inode->i_mode)) {
- ei->i_dir_acl = le32_to_cpu(raw_inode->i_dir_acl);
- } else {
- inode->i_size |=
- ((__u64)le32_to_cpu(raw_inode->i_size_high)) << 32;
}
+ inode->i_size = ext4_isize(raw_inode);
ei->i_disksize = inode->i_size;
inode->i_generation = le32_to_cpu(raw_inode->i_generation);
ei->i_block_group = iloc.block_group;
return;
}
+static int ext4_inode_blocks_set(handle_t *handle,
+ struct ext4_inode *raw_inode,
+ struct ext4_inode_info *ei)
+{
+ struct inode *inode = &(ei->vfs_inode);
+ u64 i_blocks = inode->i_blocks;
+ struct super_block *sb = inode->i_sb;
+ int err = 0;
+
+ if (i_blocks <= ~0U) {
+ /*
+ * i_blocks can be represnted in a 32 bit variable
+ * as multiple of 512 bytes
+ */
+ raw_inode->i_blocks_lo = cpu_to_le32(i_blocks);
+ raw_inode->i_blocks_high = 0;
+ ei->i_flags &= ~EXT4_HUGE_FILE_FL;
+ } else if (i_blocks <= 0xffffffffffffULL) {
+ /*
+ * i_blocks can be represented in a 48 bit variable
+ * as multiple of 512 bytes
+ */
+ err = ext4_update_rocompat_feature(handle, sb,
+ EXT4_FEATURE_RO_COMPAT_HUGE_FILE);
+ if (err)
+ goto err_out;
+ /* i_block is stored in the split 48 bit fields */
+ raw_inode->i_blocks_lo = cpu_to_le32(i_blocks);
+ raw_inode->i_blocks_high = cpu_to_le16(i_blocks >> 32);
+ ei->i_flags &= ~EXT4_HUGE_FILE_FL;
+ } else {
+ /*
+ * i_blocks should be represented in a 48 bit variable
+ * as multiple of file system block size
+ */
+ err = ext4_update_rocompat_feature(handle, sb,
+ EXT4_FEATURE_RO_COMPAT_HUGE_FILE);
+ if (err)
+ goto err_out;
+ ei->i_flags |= EXT4_HUGE_FILE_FL;
+ /* i_block is stored in file system block size */
+ i_blocks = i_blocks >> (inode->i_blkbits - 9);
+ raw_inode->i_blocks_lo = cpu_to_le32(i_blocks);
+ raw_inode->i_blocks_high = cpu_to_le16(i_blocks >> 32);
+ }
+err_out:
+ return err;
+}
+
/*
* Post the struct inode info into an on-disk inode location in the
* buffer-cache. This gobbles the caller's reference to the
raw_inode->i_gid_high = 0;
}
raw_inode->i_links_count = cpu_to_le16(inode->i_nlink);
- raw_inode->i_size = cpu_to_le32(ei->i_disksize);
EXT4_INODE_SET_XTIME(i_ctime, inode, raw_inode);
EXT4_INODE_SET_XTIME(i_mtime, inode, raw_inode);
EXT4_INODE_SET_XTIME(i_atime, inode, raw_inode);
EXT4_EINODE_SET_XTIME(i_crtime, ei, raw_inode);
- raw_inode->i_blocks = cpu_to_le32(inode->i_blocks);
+ if (ext4_inode_blocks_set(handle, raw_inode, ei))
+ goto out_brelse;
raw_inode->i_dtime = cpu_to_le32(ei->i_dtime);
raw_inode->i_flags = cpu_to_le32(ei->i_flags);
if (EXT4_SB(inode->i_sb)->s_es->s_creator_os !=
cpu_to_le32(EXT4_OS_HURD))
raw_inode->i_file_acl_high =
cpu_to_le16(ei->i_file_acl >> 32);
- raw_inode->i_file_acl = cpu_to_le32(ei->i_file_acl);
- if (!S_ISREG(inode->i_mode)) {
- raw_inode->i_dir_acl = cpu_to_le32(ei->i_dir_acl);
- } else {
- raw_inode->i_size_high =
- cpu_to_le32(ei->i_disksize >> 32);
- if (ei->i_disksize > 0x7fffffffULL) {
- struct super_block *sb = inode->i_sb;
- if (!EXT4_HAS_RO_COMPAT_FEATURE(sb,
- EXT4_FEATURE_RO_COMPAT_LARGE_FILE) ||
- EXT4_SB(sb)->s_es->s_rev_level ==
- cpu_to_le32(EXT4_GOOD_OLD_REV)) {
- /* If this is the first large file
- * created, add a flag to the superblock.
- */
- err = ext4_journal_get_write_access(handle,
- EXT4_SB(sb)->s_sbh);
- if (err)
- goto out_brelse;
- ext4_update_dynamic_rev(sb);
- EXT4_SET_RO_COMPAT_FEATURE(sb,
+ raw_inode->i_file_acl_lo = cpu_to_le32(ei->i_file_acl);
+ ext4_isize_set(raw_inode, ei->i_disksize);
+ if (ei->i_disksize > 0x7fffffffULL) {
+ struct super_block *sb = inode->i_sb;
+ if (!EXT4_HAS_RO_COMPAT_FEATURE(sb,
+ EXT4_FEATURE_RO_COMPAT_LARGE_FILE) ||
+ EXT4_SB(sb)->s_es->s_rev_level ==
+ cpu_to_le32(EXT4_GOOD_OLD_REV)) {
+ /* If this is the first large file
+ * created, add a flag to the superblock.
+ */
+ err = ext4_journal_get_write_access(handle,
+ EXT4_SB(sb)->s_sbh);
+ if (err)
+ goto out_brelse;
+ ext4_update_dynamic_rev(sb);
+ EXT4_SET_RO_COMPAT_FEATURE(sb,
EXT4_FEATURE_RO_COMPAT_LARGE_FILE);
- sb->s_dirt = 1;
- handle->h_sync = 1;
- err = ext4_journal_dirty_metadata(handle,
- EXT4_SB(sb)->s_sbh);
- }
+ sb->s_dirt = 1;
+ handle->h_sync = 1;
+ err = ext4_journal_dirty_metadata(handle,
+ EXT4_SB(sb)->s_sbh);
}
}
raw_inode->i_generation = cpu_to_le32(inode->i_generation);
ext4_journal_stop(handle);
}
+ if (attr->ia_valid & ATTR_SIZE) {
+ if (!(EXT4_I(inode)->i_flags & EXT4_EXTENTS_FL)) {
+ struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
+
+ if (attr->ia_size > sbi->s_bitmap_maxbytes) {
+ error = -EFBIG;
+ goto err_out;
+ }
+ }
+ }
+
if (S_ISREG(inode->i_mode) &&
attr->ia_valid & ATTR_SIZE && attr->ia_size < inode->i_size) {
handle_t *handle;
* Expand an inode by new_extra_isize bytes.
* Returns 0 on success or negative error number on failure.
*/
-int ext4_expand_extra_isize(struct inode *inode, unsigned int new_extra_isize,
- struct ext4_iloc iloc, handle_t *handle)
+static int ext4_expand_extra_isize(struct inode *inode,
+ unsigned int new_extra_isize,
+ struct ext4_iloc iloc,
+ handle_t *handle)
{
struct ext4_inode *raw_inode;
struct ext4_xattr_ibody_header *header;
iloc, handle);
if (ret) {
EXT4_I(inode)->i_state |= EXT4_STATE_NO_EXPAND;
- if (mnt_count != sbi->s_es->s_mnt_count) {
+ if (mnt_count !=
+ le16_to_cpu(sbi->s_es->s_mnt_count)) {
ext4_warning(inode->i_sb, __FUNCTION__,
"Unable to expand inode %lu. Delete"
" some EAs or run e2fsck.",
inode->i_ino);
- mnt_count = sbi->s_es->s_mnt_count;
+ mnt_count =
+ le16_to_cpu(sbi->s_es->s_mnt_count);
}
}
}
projects / linux-2.6-omap-h63xx.git / blobdiff