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SubjectRe: linux-next: build failure after merge of the f2fs tree
Hi all,

On Wed, 23 Jun 2021 10:49:22 +1000 Stephen Rothwell <sfr@canb.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@canb.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@canb.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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