Re: linux-next: manual merge of the overlayfs tree with the btrfs-kdave tree

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Hi all,

On Tue, 29 May 2018 09:52:50 +1000 Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote:
>
> Today's linux-next merge of the overlayfs tree got a conflict in:
> 
>   fs/btrfs/ioctl.c
> 
> between commit:
> 
>   0b4dc087e29a ("Btrfs: dedupe_file_range ioctl: remove 16MiB restriction")
> 
> from the btrfs-kdave tree and commits:
> 
>   83d499febfac ("vfs: dedpue: return loff_t")
>   7765f19ed5f9 ("vfs: dedupe: rationalize args")
> 
> from the overlayfs tree.
> 
> [I note the typo in the subject of commit 83d499febfac]
> 
> I fixed it up (see below) and can carry the fix as necessary. This
> is now fixed as far as linux-next is concerned, but any non trivial
> conflicts should be mentioned to your upstream maintainer when your tree
> is submitted for merging.  You may also want to consider cooperating
> with the maintainer of the conflicting tree to minimise any particularly
> complex conflicts.
> 
> -- 
> Cheers,
> Stephen Rothwell
> 
> diff --cc fs/btrfs/ioctl.c
> index 4d88d54d042d,70eac76804df..000000000000
> --- a/fs/btrfs/ioctl.c
> +++ b/fs/btrfs/ioctl.c
> @@@ -3637,14 -3192,20 +3637,15 @@@ out_free
>   	return ret;
>   }
>   
> - ssize_t btrfs_dedupe_file_range(struct file *src_file, u64 loff, u64 olen,
> - 				struct file *dst_file, u64 dst_loff)
>  -#define BTRFS_MAX_DEDUPE_LEN	SZ_16M
>  -
> + loff_t btrfs_dedupe_file_range(struct file *src_file, loff_t loff,
> + 			       struct file *dst_file, loff_t dst_loff,
> + 			       loff_t olen)
>   {
>   	struct inode *src = file_inode(src_file);
>   	struct inode *dst = file_inode(dst_file);
>   	u64 bs = BTRFS_I(src)->root->fs_info->sb->s_blocksize;
> - 	ssize_t res;
> + 	int res;
>   
>  -	if (olen > BTRFS_MAX_DEDUPE_LEN)
>  -		olen = BTRFS_MAX_DEDUPE_LEN;
>  -
>   	if (WARN_ON_ONCE(bs < PAGE_SIZE)) {
>   		/*
>   		 * Btrfs does not support blocksize < page_size. As a

This is now a conflict between the overlayfs tree and Linus' tree.

-- 
Cheers,
Stephen Rothwell

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