lkml.org 
[lkml]   [2006]   [Jan]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: RFC [patch 13/34] PID Virtualization Define new task_pid api
From
Date
On Wed, 2006-01-25 at 02:58 -0700, Eric W. Biederman wrote:
> >> On Maw, 2006-01-24 at 12:26 -0700, Eric W. Biederman wrote:
> >> > There is at least NFS lockd that appreciates having a single integer
> >> > per process unique identifier. So there is a practical basis for
> >> > wanting such a thing.

The NFS lock manager mainly wants a unique 32-bit identifier that can
follow clone(CLONE_FILES). The reason is that the Linux VFS is forced to
use the pointer to the file table as the "process identifier" for posix
locks (i.e. fcntl() locks).

Cheers,
Trond

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2006-01-25 16:13    [W:0.131 / U:0.000 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site