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Date:      Sun, 05 Dec 2021 19:08:19 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 260242] [fusefs] fuse_vnop_copy_file_range  does not evict cache for destination file
Message-ID:  <bug-260242-227@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D260242

            Bug ID: 260242
           Summary: [fusefs] fuse_vnop_copy_file_range  does not evict
                    cache for destination file
           Product: Base System
           Version: 13.0-RELEASE
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: bugs@FreeBSD.org
          Reporter: asomers@FreeBSD.org

FUSE_COPY_FILE_RANGE instructs the server to write to a file.  The fusefs
module ought to evict any cached data in the range that it instructs the se=
rver
to write.  Unfortunately, today I noticed by inspection that it does not.  =
This
leads to a risk of data corruption when using copy_file_range with a FUSE f=
ile
system that supports it (most don't).  I should have a patch soon.

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