Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (50 commits)
  jbd2: sparse pointer use of zero as null
  jbd2: Use round-jiffies() function for the "5 second" ext4/jbd2 wakeup
  jbd2: Mark jbd2 slabs as SLAB_TEMPORARY
  jbd2: add lockdep support
  ext4: Use the ext4_ext_actual_len() helper function
  ext4: fix uniniatilized extent splitting error
  ext4: Check for return value from sb_set_blocksize
  ext4: Add stripe= option to /proc/mounts
  ext4: Enable the multiblock allocator by default
  ext4: Add multi block allocator for ext4
  ext4: Add new functions for searching extent tree
  ext4: Add ext4_find_next_bit()
  ext4: fix up EXT4FS_DEBUG builds
  ext4: Fix ext4_show_options to show the correct mount options.
  ext4: Add EXT4_IOC_MIGRATE ioctl
  ext4: Add inode version support in ext4
  vfs: Add 64 bit i_version support
  ext4: Add the journal checksum feature
  jbd2: jbd2 stats through procfs
  ext4: Take read lock during overwrite case.
  ...

1 files changed, 17 insertions, 8 deletions

diff --git a/include/linux/ext4_fs_i.h b/include/linux/ext4_fs_i.h
index 86ddfe2089f3..d5508d3cf290 100644
--- a/include/linux/ext4_fs_i.h
+++ b/include/linux/ext4_fs_i.h
@@ -27,6 +27,12 @@ typedef int ext4_grpblk_t;
 /* data type for filesystem-wide blocks number */
 typedef unsigned long long ext4_fsblk_t;
 
+/* 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 */
@@ -48,7 +54,7 @@ struct ext4_block_alloc_info {
 	 * most-recently-allocated block in this file.
 	 * We use this for detecting linearly ascending allocation requests.
 	 */
-	__u32 last_alloc_logical_block;
+	ext4_lblk_t last_alloc_logical_block;
 	/*
 	 * Was i_next_alloc_goal in ext4_inode_info
 	 * is the *physical* companion to i_next_alloc_block.
@@ -67,7 +73,7 @@ struct ext4_block_alloc_info {
  */
 struct ext4_ext_cache {
 	ext4_fsblk_t	ec_start;
-	__u32		ec_block;
+	ext4_lblk_t	ec_block;
 	__u32		ec_len; /* must be 32bit to return holes */
 	__u32		ec_type;
 };
@@ -79,7 +85,6 @@ struct ext4_inode_info {
 	__le32	i_data[15];	/* unconverted */
 	__u32	i_flags;
 	ext4_fsblk_t	i_file_acl;
-	__u32	i_dir_acl;
 	__u32	i_dtime;
 
 	/*
@@ -89,13 +94,13 @@ struct ext4_inode_info {
 	 * 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 */
 	struct ext4_block_alloc_info *i_block_alloc_info;
 
-	__u32	i_dir_start_lookup;
+	ext4_lblk_t		i_dir_start_lookup;
 #ifdef CONFIG_EXT4DEV_FS_XATTR
 	/*
 	 * Extended attributes can be read independently of the main file
@@ -134,16 +139,16 @@ struct ext4_inode_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;
@@ -153,6 +158,10 @@ struct ext4_inode_info {
 	 * 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 */