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-rw-r--r--fs/ext4/extents.c57
1 files changed, 0 insertions, 57 deletions
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 34ba222..6fcb375 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -4724,60 +4724,3 @@ int ext4_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
return error;
}
-
-/*
- * Migrate a simple extent-based inode to use the i_blocks[] array
- */
-int ext4_ind_migrate(struct inode *inode)
-{
- struct ext4_extent_header *eh;
- struct ext4_super_block *es = EXT4_SB(inode->i_sb)->s_es;
- struct ext4_inode_info *ei = EXT4_I(inode);
- struct ext4_extent *ex;
- unsigned int i, len;
- ext4_fsblk_t blk;
- handle_t *handle;
- int ret;
-
- if (!EXT4_HAS_INCOMPAT_FEATURE(inode->i_sb,
- EXT4_FEATURE_INCOMPAT_EXTENTS) ||
- (!ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS)))
- return -EINVAL;
-
- handle = ext4_journal_start(inode, EXT4_HT_MIGRATE, 1);
- if (IS_ERR(handle))
- return PTR_ERR(handle);
-
- down_write(&EXT4_I(inode)->i_data_sem);
- ret = ext4_ext_check_inode(inode);
- if (ret)
- goto errout;
-
- eh = ext_inode_hdr(inode);
- ex = EXT_FIRST_EXTENT(eh);
- if (ext4_blocks_count(es) > EXT4_MAX_BLOCK_FILE_PHYS ||
- eh->eh_depth != 0 || le16_to_cpu(eh->eh_entries) > 1) {
- ret = -EOPNOTSUPP;
- goto errout;
- }
- if (eh->eh_entries == 0)
- blk = len = 0;
- else {
- len = le16_to_cpu(ex->ee_len);
- blk = ext4_ext_pblock(ex);
- if (len > EXT4_NDIR_BLOCKS) {
- ret = -EOPNOTSUPP;
- goto errout;
- }
- }
-
- ext4_clear_inode_flag(inode, EXT4_INODE_EXTENTS);
- memset(ei->i_data, 0, sizeof(ei->i_data));
- for (i=0; i < len; i++)
- ei->i_data[i] = cpu_to_le32(blk++);
- ext4_mark_inode_dirty(handle, inode);
-errout:
- ext4_journal_stop(handle);
- up_write(&EXT4_I(inode)->i_data_sem);
- return ret;
-}