internel implemention of file operation

horseriver horserivers at
Thu Jan 3 05:09:43 EST 2013

On Thu, Jan 03, 2013 at 01:16:06PM +0530, Rajat Sharma wrote:

> > will it be maped with vm_area struct ?
> Yes if it is accessed via mmap system call.

you know that , in the struct vm_area_struct,there is a struct vm_operations_struct * vm_ops;

in this vm_operations_struct , there are open/close functions ,  are there necessary  relations between file 

operations and this struct ?


> > what is the relation between page-cache and file operation?
> file operations for data access like read/write will look into page-cache
> first before going to disk.
> -Rajat

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