Hi All, For whom it may concern, I have backported latest overlayfs features to stable kernel v4.9.y. The patches are available on overlayfs-4.9.y branch on my github [1]. I intend to update and test this branch with patches applied to upstream. This work was verified with with xfstests master branch and with unionmount-testsuite master branch on my github [2]. DO NOT mistake this for code that can be compiled and loaded as a kernel module to kernel v4.9.y! The branch pulls in some minor infrastructure changes that were required for ease of backporting (mostly uuid_t helpers). Most of the remaining diff from v4.15-rc1 in overlayfs code is due to STATX vfs API change. All backported patches have my S-O-B, but most of them don't have the upstream commit id in the commit message expect a few tree wide patches which I selectively picked their changes only to overlayfs (e.g. add include <cred.h>). Please feel free to use this code, review my work and test it. Thanks, Amir. [1] https://github.com/amir73il/linux/commits/overlayfs-4.9.y [2] https://github.com/amir73il/unionmount-testsuite -- To unsubscribe from this list: send the line "unsubscribe linux-unionfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html