On 2014/7/2 23:15, Zwisler, Ross wrote:
> 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.
>
Hi,
Thank you for your correction, sorry for my mistake.
I will send a new patch.
>>
>> - if (!mapping->a_ops->readpage)
>> - return -ENOEXEC;
>> file_accessed(file);
>> vma->vm_ops = &ext4_file_vm_ops;
>> return 0;
>
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