[Bug 238340] [FUSEFS] fusefs should use the vn_io_fault mechanism

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Wed Jun 5 16:24:33 UTC 2019


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=238340

            Bug ID: 238340
           Summary: [FUSEFS] fusefs should use the vn_io_fault mechanism
           Product: Base System
           Version: CURRENT
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Many People
          Priority: ---
         Component: kern
          Assignee: bugs at FreeBSD.org
          Reporter: asomers at FreeBSD.org

r236321 added a new mechanism for avoiding lock order reversals when a program
reads from one file into a buffer backed by another file.  This mechanism
mostly takes place in the VFS, but file systems need to opt in.  See the
comments for vn_io_fault_doio.  fusefs should do it.

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