2013/3/19, Jaegeuk Kim <jaegeuk.kim@xxxxxxxxxxx>:
> 2013-03-19 (화), 13:54 +0900, Namjae Jeon:
>> >
>> > - err = f2fs_readpage(sbi, page, dn.data_blkaddr, READ_SYNC);
>> > - if (err) {
>> > - f2fs_put_page(page, 1);
>> > - return ERR_PTR(err);
>> > + if (PageUptodate(page)) {
>> > + unlock_page(page);
>> > + return page;
>> > }
>> > - unlock_page(page);
>> Hi Jaegeuk.
>> > +
>> > + err = f2fs_readpage(sbi, page, dn.data_blkaddr, READ_SYNC);
>> > + wait_on_page_locked(page);
>> > + if (!PageUptodate(page))
>> > + return ERR_PTR(-EIO);
>> We don't need to release page before returning EIO ?
>
> Good catch! :)
>
>>
>> > return page;
>> > }
>> >
>> > @@ -241,9 +244,13 @@ struct page *get_lock_data_page(struct inode
>> > *inode,
>> > pgoff_t index)
>> > BUG_ON(dn.data_blkaddr == NULL_ADDR);
>> >
>> > err = f2fs_readpage(sbi, page, dn.data_blkaddr, READ_SYNC);
>> > - if (err) {
>> > - f2fs_put_page(page, 1);
>> > + if (err)
>> > return ERR_PTR(err);
>> Here is also same. We don't need to release page in case of err ?
>
> It's different.
> The f2fs_readpage() releases the page if error is occurred.
> Thanks,
Right~. you can add
Reviewed-by: Namjae Jeon <namjae.jeon@xxxxxxxxxxx>
Thanks.
>
>>
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