On Thu, Jun 5, 2025 at 7:51 PM Zorro Lang <zlang@xxxxxxxxxx> wrote: > > On Tue, Jun 03, 2025 at 12:07:40PM +0200, Amir Goldstein wrote: > > libmount >= v1.39 calls several unneeded fsconfig() calls to reconfigure > > lowerdir/upperdir when user requests only -o remount,ro. > > > > Those calls fail because overlayfs does not allow making any config > > changes with new mount api, besides MS_RDONLY. > > > > We workaround this problem with --options-mode ignore. > > > > Reported-by: André Almeida <andrealmeid@xxxxxxxxxx> > > Suggested-by: Karel Zak <kzak@xxxxxxxxxx> > > Link: https://lore.kernel.org/linux-fsdevel/20250521-ovl_ro-v1-1-2350b1493d94@xxxxxxxxxx/ > > Link: https://lore.kernel.org/fstests/CAJfpegtJ3SDKmC80B4AfWiC3JmtWdW2+78fRZVtsuhe-wSRPvg@xxxxxxxxxxxxxx/ > > Signed-off-by: Amir Goldstein <amir73il@xxxxxxxxx> > > --- > > > > Changes since v1 [1]: > > - Change workaround from LIBMOUNT_FORCE_MOUNT2 to --options-mode=ignore > > > > [1] https://lore.kernel.org/fstests/20250526143500.1520660-1-amir73il@xxxxxxxxx/ > > I'm not sure if I understand clearly. Does overlay list are fixing this issue > on kernel side, then providing a workaround to fstests to avoid the issue be > triggered too? > Noone agreed to fix it on the kernel side. At least not yet. Thanks, Amir.
