Messages in this thread | | | From | David Howells <> | Subject | Re: [RFC PATCH 11/10] pipe: Add fsync() support [ver #2] | Date | Sat, 02 Nov 2019 19:34:32 +0000 |
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Linus Torvalds <torvalds@linux-foundation.org> wrote:
> > > Similar synchronization is required for reusing memory after vmsplice()? > > > I don't see other way how sender could safely change these pages.
Actually, it's probably worse than that. If the output of the pipe gets teed or spliced somewhere else, you still don't know when the vmspliced pages are finished with.
David
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