read_proc_t and file_operations in procfs

[Emil Karlson]

Greetings

Didn't they remove {read,write}_proc_t in linux-3.10? You may have to
provide full file_operations for a proc file.

Best Regards
-Emil


On Sun, Jul 21, 2013 at 11:55 AM, Hua Siyuan <jonnyhsy at foxmail.com> wrote:

> Hi All,
>
> I'm now studying proc file system. I now know that read_proc_t function is
> called when the proofs file is read, and so for write_proc_t function when
> the proofs file is written to. But I also find the file_operaitons* field
> in the definition of proc_dir_entry, and this example code (
> http://linux.die.net/lkmpg/x810.html).
>
> So I'm confused that what happened if I provide both read_proc_t function,
> and the read function in file_operations structure?  Thanks very much.
>
> Best,
> Siyuan
>
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