Hi All, I am trying to replace a page which is already present in page_cache. Is there any direct way to do so (via some kernel API)? My experiment is something like, I have a file opened and read completely in user space app (just to make sure that all the file is present in page cache). From kernel, I am allocating a new page, filling some data into it, and want to store this data by replacing some existing page from page_cache. Initially I was thinking of removing a page (at a particular index) from page_cache and then add my new page at the same index. But by doing so, that page will be treated as containing invalid data, hence again the data will be fetched from the disk and it will overwrite whatever I had initially written into that page. Is there any way I can add the page into page_cache (by add_to_page_cache_lru) and still mark it Uptodate (SetPageUptodate or something) without any bad consequences? Regards, Jack