Re: [RFC PATCH 11/10] pipe: Add fsync() support [ver #2]

[RFC PATCH 00/10] pipe: Notification queue preparation [ver #2] · David Howells <dhowells@redhat.com> · 2019-10-23
[RFC PATCH 01/10] pipe: Reduce #inclusion of pipe_fs_i.h [ver #2] · David Howells <dhowells@redhat.com> · 2019-10-23
[RFC PATCH 02/10] Remove the nr_exclusive argument from __wake_up_sync_key() [ver #2] · David Howells <dhowells@redhat.com> · 2019-10-23
[RFC PATCH 03/10] Add wake_up_interruptible_sync_poll_locked() [ver #2] · David Howells <dhowells@redhat.com> · 2019-10-23
[RFC PATCH 04/10] pipe: Use head and tail pointers for the ring, not cursor and length [ver #2] · David Howells <dhowells@redhat.com> · 2019-10-23
Re: [RFC PATCH 04/10] pipe: Use head and tail pointers for the ring, not cursor and length [ver #2] · David Howells <dhowells@redhat.com> · 2019-10-24
[pipe] 6567a02d20: BUG:kernel_NULL_pointer_dereference,address · kernel test robot <hidden> · 2019-10-26
Re: [RFC PATCH 04/10] pipe: Use head and tail pointers for the ring, not cursor and length [ver #2] · Linus Torvalds <torvalds@linux-foundation.org> · 2019-10-27
Re: [RFC PATCH 04/10] pipe: Use head and tail pointers for the ring, not cursor and length [ver #2] · David Howells <dhowells@redhat.com> · 2019-10-31
Re: [RFC PATCH 04/10] pipe: Use head and tail pointers for the ring, not cursor and length [ver #2] · Matthew Wilcox <willy@infradead.org> · 2019-11-03
Re: [RFC PATCH 04/10] pipe: Use head and tail pointers for the ring, not cursor and length [ver #2] · Ilya Dryomov <idryomov@gmail.com> · 2019-10-30
Re: [RFC PATCH 04/10] pipe: Use head and tail pointers for the ring, not cursor and length [ver #2] · Rasmus Villemoes <linux@rasmusvillemoes.dk> · 2019-10-30
Re: [RFC PATCH 04/10] pipe: Use head and tail pointers for the ring, not cursor and length [ver #2] · Ilya Dryomov <idryomov@gmail.com> · 2019-10-30
Re: [RFC PATCH 04/10] pipe: Use head and tail pointers for the ring, not cursor and length [ver #2] · Rasmus Villemoes <linux@rasmusvillemoes.dk> · 2019-10-30
Re: [RFC PATCH 04/10] pipe: Use head and tail pointers for the ring, not cursor and length [ver #2] · David Howells <dhowells@redhat.com> · 2019-10-31
Re: [RFC PATCH 04/10] pipe: Use head and tail pointers for the ring, not cursor and length [ver #2] · Ilya Dryomov <idryomov@gmail.com> · 2019-10-31
Re: [RFC PATCH 04/10] pipe: Use head and tail pointers for the ring, not cursor and length [ver #2] · David Howells <dhowells@redhat.com> · 2019-11-01
Re: [RFC PATCH 04/10] pipe: Use head and tail pointers for the ring, not cursor and length [ver #2] · Johannes Hirte <hidden> · 2019-12-06
Re: [RFC PATCH 04/10] pipe: Use head and tail pointers for the ring, not cursor and length [ver #2] · Linus Torvalds <torvalds@linux-foundation.org> · 2019-12-06
Re: [RFC PATCH 04/10] pipe: Use head and tail pointers for the ring, not cursor and length [ver #2] · Johannes Hirte <hidden> · 2019-12-07
Re: [RFC PATCH 04/10] pipe: Use head and tail pointers for the ring, not cursor and length [ver #2] · Linus Torvalds <torvalds@linux-foundation.org> · 2019-12-07
Re: [RFC PATCH 04/10] pipe: Use head and tail pointers for the ring, not cursor and length [ver #2] · Johannes Hirte <hidden> · 2019-12-08
Re: [RFC PATCH 04/10] pipe: Use head and tail pointers for the ring, not cursor and length [ver #2] · Linus Torvalds <torvalds@linux-foundation.org> · 2019-12-08
Re: [RFC PATCH 04/10] pipe: Use head and tail pointers for the ring, not cursor and length [ver #2] · Linus Torvalds <torvalds@linux-foundation.org> · 2019-12-07
Re: [RFC PATCH 04/10] pipe: Use head and tail pointers for the ring, not cursor and length [ver #2] · David Howells <dhowells@redhat.com> · 2019-12-06
[RFC PATCH 05/10] pipe: Allow pipes to have kernel-reserved slots [ver #2] · David Howells <dhowells@redhat.com> · 2019-10-23
[RFC PATCH 06/10] pipe: Advance tail pointer inside of wait spinlock in pipe_read() [ver #2] · David Howells <dhowells@redhat.com> · 2019-10-23
[RFC PATCH 07/10] pipe: Conditionalise wakeup in pipe_read() [ver #2] · David Howells <dhowells@redhat.com> · 2019-10-23
Re: [RFC PATCH 07/10] pipe: Conditionalise wakeup in pipe_read() [ver #2] · Konstantin Khlebnikov <hidden> · 2019-10-27
Re: [RFC PATCH 07/10] pipe: Conditionalise wakeup in pipe_read() [ver #2] · David Howells <dhowells@redhat.com> · 2019-10-31
Re: [RFC PATCH 07/10] pipe: Conditionalise wakeup in pipe_read() [ver #2] · David Howells <dhowells@redhat.com> · 2019-10-31
Re: [RFC PATCH 07/10] pipe: Conditionalise wakeup in pipe_read() [ver #2] · Konstantin Khlebnikov <hidden> · 2019-11-03
[RFC PATCH 08/10] pipe: Rearrange sequence in pipe_write() to preallocate slot [ver #2] · David Howells <dhowells@redhat.com> · 2019-10-23
[RFC PATCH 09/10] pipe: Remove redundant wakeup from pipe_write() [ver #2] · David Howells <dhowells@redhat.com> · 2019-10-23
[RFC PATCH 10/10] pipe: Check for ring full inside of the spinlock in pipe_write() [ver #2] · David Howells <dhowells@redhat.com> · 2019-10-23
Re: [RFC PATCH 00/10] pipe: Notification queue preparation [ver #2] · Peter Zijlstra <peterz@infradead.org> · 2019-10-24
[RFC PATCH 11/10] pipe: Add fsync() support [ver #2] · David Howells <dhowells@redhat.com> · 2019-10-24
Re: [RFC PATCH 11/10] pipe: Add fsync() support [ver #2] · Linus Torvalds <torvalds@linux-foundation.org> · 2019-10-24
Re: [RFC PATCH 11/10] pipe: Add fsync() support [ver #2] · David Howells <dhowells@redhat.com> · 2019-10-25
Re: [RFC PATCH 11/10] pipe: Add fsync() support [ver #2] · Christoph Hellwig <hch@infradead.org> · 2019-10-27
Re: [RFC PATCH 11/10] pipe: Add fsync() support [ver #2] · David Howells <dhowells@redhat.com> · 2019-10-31
Re: [RFC PATCH 11/10] pipe: Add fsync() support [ver #2] · Konstantin Khlebnikov <hidden> · 2019-10-27
Re: [RFC PATCH 11/10] pipe: Add fsync() support [ver #2] · David Howells <dhowells@redhat.com> · 2019-10-31
Re: [RFC PATCH 11/10] pipe: Add fsync() support [ver #2] · Linus Torvalds <torvalds@linux-foundation.org> · 2019-11-02
Re: [RFC PATCH 11/10] pipe: Add fsync() support [ver #2] · David Howells <dhowells@redhat.com> · 2019-11-02
Re: [RFC PATCH 11/10] pipe: Add fsync() support [ver #2] · Andy Lutomirski <luto@amacapital.net> · 2019-11-02
Re: [RFC PATCH 11/10] pipe: Add fsync() support [ver #2] · Linus Torvalds <torvalds@linux-foundation.org> · 2019-11-02
Re: [RFC PATCH 11/10] pipe: Add fsync() support [ver #2] · Linus Torvalds <torvalds@linux-foundation.org> · 2019-11-02
Re: [RFC PATCH 11/10] pipe: Add fsync() support [ver #2] · Andy Lutomirski <luto@amacapital.net> · 2019-11-02
Re: [RFC PATCH 11/10] pipe: Add fsync() support [ver #2] · Linus Torvalds <torvalds@linux-foundation.org> · 2019-11-02
Re: [RFC PATCH 11/10] pipe: Add fsync() support [ver #2] · Linus Torvalds <torvalds@linux-foundation.org> · 2019-11-02
Re: [RFC PATCH 11/10] pipe: Add fsync() support [ver #2] · Andy Lutomirski <luto@kernel.org> · 2019-11-02
Re: [RFC PATCH 11/10] pipe: Add fsync() support [ver #2] · Konstantin Khlebnikov <hidden> · 2019-11-03

From: David Howells <dhowells@redhat.com>
Date: 2019-10-31 15:13:30
Also in: keyrings, linux-block, linux-fsdevel, linux-security-module, linux-usb, lkml

Christoph Hellwig [off-list ref] wrote:

I am _really_ worried about overloading fsync for this behavior.  fsync
hasn't done anything for 50 years, and suddenly adding any action
is not helpful.  If you can't use FIONREAD please add a new ioctls
instead, and document it properly.

Okay.

David

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