Re: [patch v2] cifs: fix revalidation test in cifs_llseek()

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On Mon, 30 Apr 2012 17:36:21 +0300
Dan Carpenter <dan.carpenter@xxxxxxxxxx> wrote:

> This test is always true so it means we revalidate the length every
> time, which generates more network traffic.  When it is SEEK_SET or
> SEEK_CUR, then we don't need to revalidate.
> 
> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
> ---
> v2:  I had the test reversed in the first version.
> 
> diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
> index 811245b..4a6ad20 100644
> --- a/fs/cifs/cifsfs.c
> +++ b/fs/cifs/cifsfs.c
> @@ -699,7 +699,7 @@ static loff_t cifs_llseek(struct file *file, loff_t offset, int origin)
>  	 * origin == SEEK_END || SEEK_DATA || SEEK_HOLE => we must revalidate
>  	 * the cached file length
>  	 */
> -	if (origin != SEEK_SET || origin != SEEK_CUR) {
> +	if (origin != SEEK_SET && origin != SEEK_CUR) {
>  		int rc;
>  		struct inode *inode = file->f_path.dentry->d_inode;
>  

Looks good.

Reviewed-by: Jeff Layton <jlayton@xxxxxxxxxx>
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