/* data type for file logical block number */
typedef __u32 ext4_lblk_t;
+/* data type for block group number */
+typedef unsigned long ext4_group_t;
+
struct ext4_reserve_window {
ext4_fsblk_t _rsv_start; /* First byte reserved */
ext4_fsblk_t _rsv_end; /* Last byte reserved or 0 */
__le32 i_data[15]; /* unconverted */
__u32 i_flags;
ext4_fsblk_t i_file_acl;
- __u32 i_dir_acl;
__u32 i_dtime;
/*
* place a file's data blocks near its inode block, and new inodes
* near to their parent directory's inode.
*/
- __u32 i_block_group;
+ ext4_group_t i_block_group;
__u32 i_state; /* Dynamic state flags for ext4 */
/* block reservation info */
__u16 i_extra_isize;
/*
- * truncate_mutex is for serialising ext4_truncate() against
+ * i_data_sem is for serialising ext4_truncate() against
* ext4_getblock(). In the 2.4 ext2 design, great chunks of inode's
* data tree are chopped off during truncate. We can't do that in
* ext4 because whenever we perform intermediate commits during
* truncate, the inode and all the metadata blocks *must* be in a
* consistent state which allows truncation of the orphans to restart
* during recovery. Hence we must fix the get_block-vs-truncate race
- * by other means, so we have truncate_mutex.
+ * by other means, so we have i_data_sem.
*/
- struct mutex truncate_mutex;
+ struct rw_semaphore i_data_sem;
struct inode vfs_inode;
unsigned long i_ext_generation;
* struct timespec i_{a,c,m}time in the generic inode.
*/
struct timespec i_crtime;
+
+ /* mballoc */
+ struct list_head i_prealloc_list;
+ spinlock_t i_prealloc_lock;
};
#endif /* _LINUX_EXT4_FS_I */