ext4: Rename i_dir_acl to i_size_high

Rename ext4_inode.i_dir_acl to i_size_high
drop ext4_inode_info.i_dir_acl as it is not used
Rename ext4_inode.i_size to ext4_inode.i_size_lo
Add helper function for accessing the ext4_inode combined i_size.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>

2 files changed, 22 insertions, 34 deletions

diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index 00b152b92480..17b5df14f85b 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -709,7 +709,6 @@ got:
         if (!S_ISDIR(mode))
                 ei->i_flags &= ~EXT4_DIRSYNC_FL;
         ei->i_file_acl = 0;
-        ei->i_dir_acl = 0;
         ei->i_dtime = 0;
         ei->i_block_alloc_info = NULL;
         ei->i_block_group = group;
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 7bcec1860084..e6634550cfc8 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -2694,7 +2694,6 @@ 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;
@@ -2720,15 +2719,11 @@ void ext4_read_inode(struct inode * inode)
         ei->i_flags = le32_to_cpu(raw_inode->i_flags);
         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;
@@ -2852,7 +2847,6 @@ static int ext4_do_update_inode(handle_t *handle,
                 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);
@@ -2867,32 +2861,27 @@ static int ext4_do_update_inode(handle_t *handle,
                 raw_inode->i_file_acl_high =
                         cpu_to_le16(ei->i_file_acl >> 32);
         raw_inode->i_file_acl_lo = 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,
+        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);