To support several storage backends (ploops) inside container we've hacks in libvzctl which setup "old" permissions when restore procedure initiated. But the former idea was simply allow CRIU to do all the works and restore ploops mounts by its own (since CRIU fetches all mount options and such).
For this sake we turn off mount options filtering provisionally if @is_pseudosuper is set, and CRIU restore mounts as regular ones. https://jira.sw.ru/browse/PSBM-48188 Signed-off-by: Cyrill Gorcunov <gorcu...@virtuozzo.com> CC: Igor Sukhih <i...@virtuozzo.com> CC: Vladimir Davydov <vdavy...@virtuozzo.com> CC: Konstantin Khorenko <khore...@virtuozzo.com> --- fs/namespace.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) Index: linux-pcs7.git/fs/namespace.c =================================================================== --- linux-pcs7.git.orig/fs/namespace.c +++ linux-pcs7.git/fs/namespace.c @@ -1933,7 +1933,12 @@ again: if (devmnt->dev == dev) { err = ve_devmnt_check(data, devmnt->allowed_options); - if (!err && !remount) + /* + * In case of @is_pseudouser set, ie restore procedure, + * we don't check for allowed options filtering, since + * restore mode is special. + */ + if ((ve->is_pseudosuper || !err) && !remount) err = ve_devmnt_insert(data, devmnt->hidden_options); break; _______________________________________________ Devel mailing list Devel@openvz.org https://lists.openvz.org/mailman/listinfo/devel
