linux-kernel - Re: linux-next: build failure after merge of the f2fs tree

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Date:   Sun, 11 Jul 2021 13:08:23 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Jan Kara <jack@...e.cz>
Cc:     Jaegeuk Kim <jaegeuk@...nel.org>, Chao Yu <chao@...nel.org>,
        Chao Yu <yuchao0@...wei.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: Re: linux-next: build failure after merge of the f2fs tree

Hi all,

On Wed, 23 Jun 2021 10:49:22 +1000 Stephen Rothwell <sfr@...b.auug.org.au> wrote:
>
> Hi all,
> 
> After merging the f2fs tree, today's linux-next build (x86_64
> allmodconfig) failed like this:
> 
> fs/f2fs/data.c: In function 'f2fs_migrate_blocks':
> fs/f2fs/data.c:3853:27: error: 'struct f2fs_inode_info' has no member named 'i_mmap_sem'
>  3853 |  down_write(&F2FS_I(inode)->i_mmap_sem);
>       |                           ^~
> fs/f2fs/data.c:3895:25: error: 'struct f2fs_inode_info' has no member named 'i_mmap_sem'
>  3895 |  up_write(&F2FS_I(inode)->i_mmap_sem);
>       |                         ^~
> 
> Caused by commit
> 
>   7cc52cc33717 ("f2fs: swap: support migrating swapfile in aligned write mode")
> 
> interacting with commit
> 
>   c3762b9d26e1 ("f2fs: Convert to using invalidate_lock")
> 
> from the ext3 tree.
> 
> I have applied the following merge fix patch:
> 
> From: Stephen Rothwell <sfr@...b.auug.org.au>
> Date: Wed, 23 Jun 2021 10:40:54 +1000
> Subject: [PATCH] fix up for "f2fs: Convert to using invalidate_lock"
> 
> Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
> ---
>  fs/f2fs/data.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
> index 2fc1b71c640b..acf2dea65abc 100644
> --- a/fs/f2fs/data.c
> +++ b/fs/f2fs/data.c
> @@ -3850,7 +3850,7 @@ static int f2fs_migrate_blocks(struct inode *inode, block_t start_blk,
>  	int ret = 0;
>  
>  	down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
> -	down_write(&F2FS_I(inode)->i_mmap_sem);
> +	filemap_invalidate_lock(inode->i_mapping);
>  
>  	set_inode_flag(inode, FI_ALIGNED_WRITE);
>  
> @@ -3892,7 +3892,7 @@ static int f2fs_migrate_blocks(struct inode *inode, block_t start_blk,
>  	clear_inode_flag(inode, FI_DO_DEFRAG);
>  	clear_inode_flag(inode, FI_ALIGNED_WRITE);
>  
> -	up_write(&F2FS_I(inode)->i_mmap_sem);
> +	filemap_invalidate_unlock(inode->i_mapping);
>  	up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
>  
>  	return ret;

This is now a conflict between the ext3 tree and Linus' tree.

-- 
Cheers,
Stephen Rothwell

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