On Fri, 2020-07-10 at 15:13 +0200, Martin Kletzander wrote: > On Fri, Jul 10, 2020 at 10:47:22AM +0200, Michal Privoznik wrote: > > On 7/9/20 6:30 PM, Andrea Bolognani wrote: > > > This is all bikeshedding, of course: what actually matters is making > > > that lock exclusive once again :) > > > > Just realized that for exclusive (aka write) lock, the FD must be opened > > for writing (working on patches for the following report [1] and been > > experimenting a bit and that's what I'm seeing). > > Good point, but luckily not related to flock(2).
That seems to be the case: according to flock(2), A shared or exclusive lock can be placed on a file regardless of the mode in which the file was opened. Michal, does that sound reasonable to you? -- Andrea Bolognani / Red Hat / Virtualization