linux-kernel - Re: [PATCH v2 4/4] fs/9p: remove unnecessary invalidate_inode

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Date:   Wed, 19 Jul 2023 15:08:58 +0200
From:   Christian Schoenebeck <linux_oss@...debyte.com>
To:     Latchesar Ionkov <lucho@...kov.net>,
        Dominique Martinet <asmadeus@...ewreck.org>,
        Eric Van Hensbergen <ericvh@...nel.org>
Cc:     v9fs@...ts.linux.dev, linux-kernel@...r.kernel.org,
        kernel@...gutronix.de, Robert Schwebel <r.schwebel@...gutronix.de>,
        Eric Van Hensbergen <ericvh@...nel.org>
Subject: Re: [PATCH v2 4/4] fs/9p: remove unnecessary invalidate_inode_pages2

On Tuesday, July 18, 2023 10:50:18 PM CEST Eric Van Hensbergen wrote:
> There was an invalidate_inode_pages2
> added to mmap that is unnecessary.
> 
> Signed-off-by: Eric Van Hensbergen <ericvh@...nel.org>
> ---

Reviewed-by: Christian Schoenebeck <linux_oss@...debyte.com>

>  fs/9p/vfs_file.c | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c
> index bda3abd6646b8..3809f3a531499 100644
> --- a/fs/9p/vfs_file.c
> +++ b/fs/9p/vfs_file.c
> @@ -506,7 +506,6 @@ v9fs_file_mmap(struct file *filp, struct vm_area_struct *vma)
>  
>  	if (!(v9ses->cache & CACHE_WRITEBACK)) {
>  		p9_debug(P9_DEBUG_CACHE, "(no mmap mode)");
> -		invalidate_inode_pages2(filp->f_mapping);
>  		return generic_file_readonly_mmap(filp, vma);
>  	}
>  
> 
>