On Wed, 2014-07-02 at 12:01 +0800, Zhang Zhen wrote:
> There is no kind of file does not supply page reading function.
>
> Signed-off-by: Zhang Zhen <zhenzhang.zhang@xxxxxxxxxx>
> ---
> fs/ext4/file.c | 2 --
> 1 file changed, 2 deletions(-)
>
> diff --git a/fs/ext4/file.c b/fs/ext4/file.c
> index 8695f70..f5c0a17 100644
> --- a/fs/ext4/file.c
> +++ b/fs/ext4/file.c
> @@ -202,8 +202,6 @@ static int ext4_file_mmap(struct file *file, struct vm_area_struct *vma)
> {
> struct address_space *mapping = file->f_mapping;
Assuming this change is correct, the 'mapping' variable is now unused and can
also be deleted.
>
> - if (!mapping->a_ops->readpage)
> - return -ENOEXEC;
> file_accessed(file);
> vma->vm_ops = &ext4_file_vm_ops;
> return 0;
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