Re: NFSv4/pNFS possible POSIX I/O API standards

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From: Matthew Wilcox <matthew@...>

Cc: Gary Grider <ggrider@...>, <linux-fsdevel@...>

Subject: Re: NFSv4/pNFS possible POSIX I/O API standards

Date: Wednesday, November 29, 2006 - 8:23 am

On Wed, Nov 29, 2006 at 09:04:50AM +0000, Christoph Hellwig wrote:
quoted text>  - openg/sutoc
> 
> 	No way.  We already have a very nice file descriptor abstraction.
> 	You can pass file descriptors over unix sockets just fine.

Yes, but it behaves like dup().  Gary replied to me off-list (which I
didn't notice and continued replying to him off-list).  I wrote:

Is this for people who don't know about dup(), or do they need
independent file offsets?  If the latter, I think an xdup() would be
preferable (would there be a security issue for OSes with revoke()?)
Either that, or make the key be useful for something else.

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Messages in current thread:

NFSv4/pNFS possible POSIX I/O API standards, Gary Grider, (Tue Nov 28, 12:34 am)

Re: NFSv4/pNFS possible POSIX I/O API standards, Matthew Wilcox, (Tue Nov 28, 11:08 am)

Re: NFSv4/pNFS possible POSIX I/O API standards, Christoph Hellwig, (Tue Nov 28, 1:54 am)

Re: NFSv4/pNFS possible POSIX I/O API standards, Christoph Hellwig, (Wed Nov 29, 5:04 am)

Re: NFSv4/pNFS possible POSIX I/O API standards, Matthew Wilcox, (Wed Nov 29, 8:23 am)

Re: NFSv4/pNFS possible POSIX I/O API standards, Christoph Hellwig, (Wed Nov 29, 8:39 am)

Re: NFSv4/pNFS possible POSIX I/O API standards, Rob Ross, (Fri Dec 1, 6:29 pm)

Re: NFSv4/pNFS possible POSIX I/O API standards, Latchesar Ionkov, (Fri Dec 1, 10:35 pm)

Re: NFSv4/pNFS possible POSIX I/O API standards, Rob Ross, (Mon Dec 4, 8:37 pm)

Re: Re: NFSv4/pNFS possible POSIX I/O API standards, Latchesar Ionkov, (Tue Dec 5, 12:47 pm)

Re: Re: NFSv4/pNFS possible POSIX I/O API standards, David Chinner, (Wed Dec 6, 5:48 am)

openg and path_to_handle, Rob Ross, (Wed Dec 6, 11:53 am)

Re: openg and path_to_handle, Latchesar Ionkov, (Wed Dec 6, 7:19 pm)

Re: openg and path_to_handle, Rob Ross, (Thu Dec 14, 5:00 pm)

Re: openg and path_to_handle, Matthew Wilcox, (Thu Dec 14, 5:20 pm)

Re: openg and path_to_handle, Rob Ross, (Thu Dec 14, 7:02 pm)

Re: openg and path_to_handle, David Chinner, (Wed Dec 6, 4:40 pm)

Re: openg and path_to_handle, Rob Ross, (Wed Dec 6, 4:50 pm)

Re: openg and path_to_handle, David Chinner, (Wed Dec 6, 5:01 pm)

Re: openg and path_to_handle, Matthew Wilcox, (Wed Dec 6, 4:50 pm)

Re: openg and path_to_handle, Andreas Dilger, (Wed Dec 6, 6:09 pm)

Re: openg and path_to_handle, Christoph Hellwig, (Wed Dec 6, 7:39 pm)

Re: openg and path_to_handle, Rob Ross, (Thu Dec 14, 6:52 pm)

Re: openg and path_to_handle, Matthew Wilcox, (Wed Dec 6, 6:17 pm)

Re: openg and path_to_handle, Andreas Dilger, (Wed Dec 6, 6:41 pm)

Re: openg and path_to_handle, David Chinner, (Wed Dec 6, 5:09 pm)

Re: openg and path_to_handle, Matthew Wilcox, (Wed Dec 6, 12:04 pm)

Re: openg and path_to_handle, Rob Ross, (Wed Dec 6, 12:20 pm)

Re: openg and path_to_handle, David Chinner, (Wed Dec 6, 4:57 pm)

Re: NFSv4/pNFS possible POSIX I/O API standards, Rob Ross, (Tue Dec 5, 5:44 pm)

Re: Re: NFSv4/pNFS possible POSIX I/O API standards, Latchesar Ionkov, (Wed Dec 6, 7:25 pm)

openg, Christoph Hellwig, (Wed Dec 6, 7:01 am)

Re: openg, Rob Ross, (Wed Dec 6, 11:42 am)

Re: openg, Christoph Hellwig, (Wed Dec 6, 7:32 pm)

Re: openg, Rob Ross, (Thu Dec 14, 7:36 pm)

Re: openg, Trond Myklebust, (Wed Dec 6, 11:41 am)

Re: Re: NFSv4/pNFS possible POSIX I/O API standards, Matthew Wilcox, (Tue Dec 5, 1:01 pm)

Re: NFSv4/pNFS possible POSIX I/O API standards, Peter Staubach, (Tue Dec 5, 5:50 pm)

Re: NFSv4/pNFS possible POSIX I/O API standards, Christoph Hellwig, (Tue Dec 5, 6:02 am)

Re: NFSv4/pNFS possible POSIX I/O API standards, Matthew Wilcox, (Wed Nov 29, 8:35 am)

Re: NFSv4/pNFS possible POSIX I/O API standards, Gary Grider, (Wed Nov 29, 12:26 pm)

Re: NFSv4/pNFS possible POSIX I/O API standards, Christoph Hellwig, (Wed Nov 29, 1:18 pm)

Re: NFSv4/pNFS possible POSIX I/O API standards, Andreas Dilger, (Wed Nov 29, 5:48 am)

Re: NFSv4/pNFS possible POSIX I/O API standards, Ric Wheeler, (Fri Dec 1, 11:52 am)

Re: NFSv4/pNFS possible POSIX I/O API standards, Steven Whitehouse, (Wed Nov 29, 6:25 am)

Re: NFSv4/pNFS possible POSIX I/O API standards, Christoph Hellwig, (Thu Nov 30, 8:29 am)

Re: NFSv4/pNFS possible POSIX I/O API standards, Anton Altaparmakov, (Wed Nov 29, 6:18 am)

Re: NFSv4/pNFS possible POSIX I/O API standards, Brad Boyer, (Wed Nov 29, 4:26 am)

Re: NFSv4/pNFS possible POSIX I/O API standards, Christoph Hellwig, (Thu Nov 30, 5:25 am)

Re: NFSv4/pNFS possible POSIX I/O API standards, Sage Weil, (Thu Nov 30, 1:49 pm)

Re: NFSv4/pNFS possible POSIX I/O API standards, Trond Myklebust, (Fri Dec 1, 1:26 am)

Re: NFSv4/pNFS possible POSIX I/O API standards, Sage Weil, (Fri Dec 1, 3:08 am)

Re: NFSv4/pNFS possible POSIX I/O API standards, Trond Myklebust, (Fri Dec 1, 10:41 am)

Re: NFSv4/pNFS possible POSIX I/O API standards, Andreas Dilger, (Sat Dec 2, 9:52 pm)

Re: NFSv4/pNFS possible POSIX I/O API standards, Sage Weil, (Sun Dec 3, 12:10 pm)

Re: NFSv4/pNFS possible POSIX I/O API standards, Andreas Dilger, (Mon Dec 4, 3:32 am)

Re: NFSv4/pNFS possible POSIX I/O API standards, Trond Myklebust, (Mon Dec 4, 11:15 am)

Re: readdirplus() as possible POSIX I/O API, Andreas Dilger, (Tue Dec 5, 6:26 am)

Re: Re: readdirplus() as possible POSIX I/O API, Latchesar Ionkov, (Tue Dec 5, 1:06 pm)

Re: readdirplus() as possible POSIX I/O API, Rob Ross, (Tue Dec 5, 6:48 pm)

Re: readdirplus() as possible POSIX I/O API, Trond Myklebust, (Tue Dec 5, 11:23 am)

Re: readdirplus() as possible POSIX I/O API, Andreas Dilger, (Wed Dec 6, 6:28 am)

Re: readdirplus() as possible POSIX I/O API, Trond Myklebust, (Wed Dec 6, 11:10 am)

Re: NFSv4/pNFS possible POSIX I/O API standards, Rob Ross, (Mon Dec 4, 8:59 pm)

Re: NFSv4/pNFS possible POSIX I/O API standards, Peter Staubach, (Tue Dec 5, 10:37 am)

Re: NFSv4/pNFS possible POSIX I/O API standards, Trond Myklebust, (Tue Dec 5, 1:56 am)

Re: NFSv4/pNFS possible POSIX I/O API standards, Christoph Hellwig, (Tue Dec 5, 6:07 am)

Re: NFSv4/pNFS possible POSIX I/O API standards, Rob Ross, (Tue Dec 5, 5:50 pm)

Re: NFSv4/pNFS possible POSIX I/O API standards, Christoph Hellwig, (Tue Dec 5, 6:05 pm)

Re: NFSv4/pNFS possible POSIX I/O API standards, Nikita Danilov, (Thu Dec 7, 7:39 pm)

Re: NFSv4/pNFS possible POSIX I/O API standards, Ulrich Drepper, (Tue Dec 5, 7:55 pm)

statlite(), Rob Ross, (Thu Dec 14, 7:58 pm)

Re: NFSv4/pNFS possible POSIX I/O API standards, Andreas Dilger, (Wed Dec 6, 6:06 am)

Re: NFSv4/pNFS possible POSIX I/O API standards, Ulrich Drepper, (Wed Dec 6, 1:19 pm)

Re: NFSv4/pNFS possible POSIX I/O API standards, Rob Ross, (Wed Dec 6, 1:27 pm)

Re: NFSv4/pNFS possible POSIX I/O API standards, Ulrich Drepper, (Wed Dec 6, 1:42 pm)

Re: NFSv4/pNFS possible POSIX I/O API standards, Andreas Dilger, (Thu Dec 7, 1:57 am)

Re: NFSv4/pNFS possible POSIX I/O API standards, Ulrich Drepper, (Fri Dec 15, 6:37 pm)

Re: NFSv4/pNFS possible POSIX I/O API standards, Andreas Dilger, (Sat Dec 16, 2:13 pm)

Re: NFSv4/pNFS possible POSIX I/O API standards, Ulrich Drepper, (Sat Dec 16, 3:08 pm)

Re: NFSv4/pNFS possible POSIX I/O API standards, Ragnar , (Wed Dec 6, 2:01 pm)

Re: NFSv4/pNFS possible POSIX I/O API standards, Ulrich Drepper, (Wed Dec 6, 2:13 pm)

Re: NFSv4/pNFS possible POSIX I/O API standards, Ragnar , (Sun Dec 17, 10:41 am)

Re: NFSv4/pNFS possible POSIX I/O API standards, Ulrich Drepper, (Sun Dec 17, 3:07 pm)

Re: NFSv4/pNFS possible POSIX I/O API standards, Matthew Wilcox, (Sun Dec 17, 3:38 pm)

Re: NFSv4/pNFS possible POSIX I/O API standards, Ulrich Drepper, (Sun Dec 17, 5:51 pm)

Re: NFSv4/pNFS possible POSIX I/O API standards, Ragnar , (Sun Dec 17, 10:57 pm)

Re: NFSv4/pNFS possible POSIX I/O API standards, Gary Grider, (Sun Dec 17, 11:54 pm)

Re: NFSv4/pNFS possible POSIX I/O API standards, Sage Weil, (Tue Dec 5, 7:18 pm)

Re: Re: NFSv4/pNFS possible POSIX I/O API standards, Latchesar Ionkov, (Tue Dec 5, 12:55 pm)

Re: NFSv4/pNFS possible POSIX I/O API standards, Christoph Hellwig, (Tue Dec 5, 6:12 pm)

Re: Re: NFSv4/pNFS possible POSIX I/O API standards, Latchesar Ionkov, (Wed Dec 6, 7:12 pm)

Re: Re: NFSv4/pNFS possible POSIX I/O API standards, Trond Myklebust, (Wed Dec 6, 7:33 pm)

Re: NFSv4/pNFS possible POSIX I/O API standards, Trond Myklebust, (Tue Dec 5, 10:55 am)

Re: NFSv4/pNFS possible POSIX I/O API standards, Ragnar , (Wed Dec 6, 8:22 am)

Re: NFSv4/pNFS possible POSIX I/O API standards, Trond Myklebust, (Wed Dec 6, 11:14 am)

Re: NFSv4/pNFS possible POSIX I/O API standards, Rob Ross, (Tue Dec 5, 6:11 pm)

Re: NFSv4/pNFS possible POSIX I/O API standards, Trond Myklebust, (Tue Dec 5, 7:24 pm)

Re: NFSv4/pNFS possible POSIX I/O API standards, Rob Ross, (Wed Dec 6, 12:42 pm)

Re: NFSv4/pNFS possible POSIX I/O API standards, Matthew Wilcox, (Tue Dec 5, 10:20 am)

Re: NFSv4/pNFS possible POSIX I/O API standards, Rob Ross, (Wed Dec 6, 11:04 am)

Re: NFSv4/pNFS possible POSIX I/O API standards, Matthew Wilcox, (Wed Dec 6, 11:44 am)

Re: NFSv4/pNFS possible POSIX I/O API standards, Rob Ross, (Wed Dec 6, 12:15 pm)

Re: NFSv4/pNFS possible POSIX I/O API standards, Gary Grider, (Tue Dec 5, 12:44 am)

Re: NFSv4/pNFS possible POSIX I/O API standards, Christoph Hellwig, (Tue Dec 5, 6:05 am)

Re: NFSv4/pNFS possible POSIX I/O API standards, Sage Weil, (Fri Dec 1, 12:47 pm)

Re: NFSv4/pNFS possible POSIX I/O API standards, Trond Myklebust, (Fri Dec 1, 2:07 pm)

Re: NFSv4/pNFS possible POSIX I/O API standards, Andreas Dilger, (Sat Dec 2, 9:57 pm)

Re: NFSv4/pNFS possible POSIX I/O API standards, Sage Weil, (Fri Dec 1, 2:42 pm)

Re: NFSv4/pNFS possible POSIX I/O API standards, Peter Staubach, (Mon Dec 4, 2:02 pm)

Re: readdirplus() as possible POSIX I/O API, Sage Weil, (Tue Dec 5, 7:20 pm)

Re: readdirplus() as possible POSIX I/O API, Peter Staubach, (Wed Dec 6, 11:48 am)

Re: NFSv4/pNFS possible POSIX I/O API standards, Trond Myklebust, (Fri Dec 1, 3:13 pm)

Re: NFSv4/pNFS possible POSIX I/O API standards, Sage Weil, (Fri Dec 1, 4:32 pm)

Re: NFSv4/pNFS possible POSIX I/O API standards, Christoph Hellwig, (Wed Nov 29, 5:14 am)

Re: NFSv4/pNFS possible POSIX I/O API standards, Andreas Dilger, (Tue Nov 28, 6:54 am)

Re: NFSv4/pNFS possible POSIX I/O API standards, Wendy Cheng, (Tue Nov 28, 7:28 pm)

Re: NFSv4/pNFS possible POSIX I/O API standards, Christoph Hellwig, (Wed Nov 29, 5:12 am)

Re: NFSv4/pNFS possible POSIX I/O API standards, Russell Cattelan, (Tue Nov 28, 4:17 pm)

Re: NFSv4/pNFS possible POSIX I/O API standards, Anton Altaparmakov, (Tue Nov 28, 7:28 am)

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