I'd still prefer this to be split into one patch for shmem, and one for
ext2 to make bisecting easier.
> @@ -68,7 +70,7 @@ void ext2_delete_inode (struct inode * i
>
> inode->i_size = 0;
> if (inode->i_blocks)
> - ext2_truncate (inode);
> + ext2_truncate_blocks(inode, 0);
> ext2_free_inode (inode);
>
> return;
> -void ext2_truncate(struct inode *inode)
> +static void ext2_truncate_blocks(struct inode *inode, loff_t offset)
> {
> __le32 *i_data = EXT2_I(inode)->i_data;
> struct ext2_inode_info *ei = EXT2_I(inode);
> @@ -1032,27 +1074,8 @@ void ext2_truncate(struct inode *inode)
> int n;
> long iblock;
> unsigned blocksize;
> -
> - if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
> - S_ISLNK(inode->i_mode)))
> - return;
> - if (ext2_inode_is_fast_symlink(inode))
> - return;
> - if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
> - return;
> -
We can't move this to the caller easily. ext2_delete_inode gets
called for all inodes, but we only want to go on truncating for the
limited set that passes this check.
> - if (mapping_is_xip(inode->i_mapping))
> - xip_truncate_page(inode->i_mapping, inode->i_size);
> - else if (test_opt(inode->i_sb, NOBH))
> - nobh_truncate_page(inode->i_mapping,
> - inode->i_size, ext2_get_block);
> - else
> - block_truncate_page(inode->i_mapping,
> - inode->i_size, ext2_get_block);
The patch header should have an explanation for why we don't need this
anymore for the various existing callers.
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