linux-kernel - Re: [PATCH 1/6] fuse: Change argument of fuse_flush

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Date:   Wed, 7 Nov 2018 15:00:30 +0100
From:   Miklos Szeredi <miklos@...redi.hu>
To:     Kirill Tkhai <ktkhai@...tuozzo.com>
Cc:     linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/6] fuse: Change argument of fuse_flush_writepages()

On Tue, Nov 6, 2018 at 10:43 AM, Kirill Tkhai <ktkhai@...tuozzo.com> wrote:
> Next patches introduce fuse_inode::lock, which will be used
> in __releases() and __acquires() instead of fc->lock.
> This patch makes this function to use argument fuse_inode
> instead of inode as preparation for that.

This patch seems like perfectly useless, just change fc->lock to
fi->lock in the next patch and be done with that.


>
> Signed-off-by: Kirill Tkhai <ktkhai@...tuozzo.com>
> ---
>  fs/fuse/dir.c    |    2 +-
>  fs/fuse/file.c   |    8 ++++----
>  fs/fuse/fuse_i.h |    2 +-
>  3 files changed, 6 insertions(+), 6 deletions(-)
>
> diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
> index 47395b0c3b35..c71f7e9ee0f7 100644
> --- a/fs/fuse/dir.c
> +++ b/fs/fuse/dir.c
> @@ -1360,7 +1360,7 @@ static void __fuse_release_nowrite(struct inode *inode)
>
>         BUG_ON(fi->writectr != FUSE_NOWRITE);
>         fi->writectr = 0;
> -       fuse_flush_writepages(inode);
> +       fuse_flush_writepages(fi);
>  }
>
>  void fuse_release_nowrite(struct inode *inode)
> diff --git a/fs/fuse/file.c b/fs/fuse/file.c
> index cc2121b37bf5..d5bd29610875 100644
> --- a/fs/fuse/file.c
> +++ b/fs/fuse/file.c
> @@ -1522,12 +1522,12 @@ __acquires(fc->lock)
>   *
>   * Called with fc->lock
>   */
> -void fuse_flush_writepages(struct inode *inode)
> +void fuse_flush_writepages(struct fuse_inode *fi)
>  __releases(fc->lock)
>  __acquires(fc->lock)
>  {
> +       struct inode *inode = &fi->inode;
>         struct fuse_conn *fc = get_fuse_conn(inode);
> -       struct fuse_inode *fi = get_fuse_inode(inode);
>         size_t crop = i_size_read(inode);
>         struct fuse_req *req;
>
> @@ -1670,7 +1670,7 @@ static int fuse_writepage_locked(struct page *page)
>         spin_lock(&fc->lock);
>         list_add(&req->writepages_entry, &fi->writepages);
>         list_add_tail(&req->list, &fi->queued_writes);
> -       fuse_flush_writepages(inode);
> +       fuse_flush_writepages(fi);
>         spin_unlock(&fc->lock);
>
>         end_page_writeback(page);
> @@ -1728,7 +1728,7 @@ static void fuse_writepages_send(struct fuse_fill_wb_data *data)
>         req->ff = fuse_file_get(data->ff);
>         spin_lock(&fc->lock);
>         list_add_tail(&req->list, &fi->queued_writes);
> -       fuse_flush_writepages(inode);
> +       fuse_flush_writepages(fi);
>         spin_unlock(&fc->lock);
>
>         for (i = 0; i < num_pages; i++)
> diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
> index e9f712e81c7d..38bd7ca1908a 100644
> --- a/fs/fuse/fuse_i.h
> +++ b/fs/fuse/fuse_i.h
> @@ -995,7 +995,7 @@ void fuse_update_ctime(struct inode *inode);
>
>  int fuse_update_attributes(struct inode *inode, struct file *file);
>
> -void fuse_flush_writepages(struct inode *inode);
> +void fuse_flush_writepages(struct fuse_inode *fi);
>
>  void fuse_set_nowrite(struct inode *inode);
>  void fuse_release_nowrite(struct inode *inode);
>