ext4: Remove (partial, never completed) fragment support

Fragment support in ext2/3/4 was never implemented, and it probably will
never be implemented.   So remove it from ext4.

Signed-off-by: Coly Li <coyli@suse.de>
Acked-by: Andreas Dilger <adilger@clusterfs.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

3 files changed, 0 insertions, 30 deletions

diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index d0c7793d9393..38e9a0a705df 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -573,11 +573,6 @@ got:
         /* dirsync only applies to directories */
         if (!S_ISDIR(mode))
                 ei->i_flags &= ~EXT4_DIRSYNC_FL;
-#ifdef EXT4_FRAGMENTS
-        ei->i_faddr = 0;
-        ei->i_frag_no = 0;
-        ei->i_frag_size = 0;
-#endif
         ei->i_file_acl = 0;
         ei->i_dir_acl = 0;
         ei->i_dtime = 0;
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 0df2b1e06d0b..1685f6a87789 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -2711,11 +2711,6 @@ void ext4_read_inode(struct inode * inode)
         }
         inode->i_blocks = le32_to_cpu(raw_inode->i_blocks);
         ei->i_flags = le32_to_cpu(raw_inode->i_flags);
-#ifdef EXT4_FRAGMENTS
-        ei->i_faddr = le32_to_cpu(raw_inode->i_faddr);
-        ei->i_frag_no = raw_inode->i_frag;
-        ei->i_frag_size = raw_inode->i_fsize;
-#endif
         ei->i_file_acl = le32_to_cpu(raw_inode->i_file_acl);
         if (EXT4_SB(inode->i_sb)->s_es->s_creator_os !=
             cpu_to_le32(EXT4_OS_HURD))
@@ -2860,11 +2855,6 @@ static int ext4_do_update_inode(handle_t *handle,
         raw_inode->i_blocks = cpu_to_le32(inode->i_blocks);
         raw_inode->i_dtime = cpu_to_le32(ei->i_dtime);
         raw_inode->i_flags = cpu_to_le32(ei->i_flags);
-#ifdef EXT4_FRAGMENTS
-        raw_inode->i_faddr = cpu_to_le32(ei->i_faddr);
-        raw_inode->i_frag = ei->i_frag_no;
-        raw_inode->i_fsize = ei->i_frag_size;
-#endif
         if (EXT4_SB(inode->i_sb)->s_es->s_creator_os !=
             cpu_to_le32(EXT4_OS_HURD))
                 raw_inode->i_file_acl_high =
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 83f9cd358e5a..e2bdf93693a6 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1726,14 +1726,6 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
                 if (sbi->s_inode_size > EXT4_GOOD_OLD_INODE_SIZE)
                         sb->s_time_gran = 1 << (EXT4_EPOCH_BITS - 2);
         }
-        sbi->s_frag_size = EXT4_MIN_FRAG_SIZE <<
-                                   le32_to_cpu(es->s_log_frag_size);
-        if (blocksize != sbi->s_frag_size) {
-                printk(KERN_ERR
-                       "EXT4-fs: fragsize %lu != blocksize %u (unsupported)\n",
-                       sbi->s_frag_size, blocksize);
-                goto failed_mount;
-        }
         sbi->s_desc_size = le16_to_cpu(es->s_desc_size);
         if (EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_64BIT)) {
                 if (sbi->s_desc_size < EXT4_MIN_DESC_SIZE_64BIT ||
@@ -1747,7 +1739,6 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
         } else
                 sbi->s_desc_size = EXT4_MIN_DESC_SIZE;
         sbi->s_blocks_per_group = le32_to_cpu(es->s_blocks_per_group);
-        sbi->s_frags_per_group = le32_to_cpu(es->s_frags_per_group);
         sbi->s_inodes_per_group = le32_to_cpu(es->s_inodes_per_group);
         if (EXT4_INODE_SIZE(sb) == 0)
                 goto cantfind_ext4;
@@ -1771,12 +1762,6 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
                         sbi->s_blocks_per_group);
                 goto failed_mount;
         }
-        if (sbi->s_frags_per_group > blocksize * 8) {
-                printk (KERN_ERR
-                        "EXT4-fs: #fragments per group too big: %lu\n",
-                        sbi->s_frags_per_group);
-                goto failed_mount;
-        }
         if (sbi->s_inodes_per_group > blocksize * 8) {
                 printk (KERN_ERR
                         "EXT4-fs: #inodes per group too big: %lu\n",