Replacing a page in page_cache

On Mon, Feb 27, 2012 at 20:41, Jack David [off-list ref] wrote:

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.

sounds like what you want to do is like normal mmap in user space and
then write new data into it?

-- 
regards,

Mulyadi Santosa
Freelance Linux trainer and consultant

blog: the-hydra.blogspot.com
training: mulyaditraining.blogspot.com