Miklos, My trigger for fixing up the non-samefs patches is that I found out while testing NFS export that reconnecting a dir dentry doesn't work for non-samefs case. I tracked the problem down to the default implementation of get_name() in expfs.c that looks up a child inode in parent dir by d_ino. First, I rebased NFS export patches onto Chandan's patches and tested, but that still didn't fix the problem. I found and fixed more cases that we need to include in impure dir cache (see 2 last patches) and now my dir file handle unit tests [2] pass. Changes since v5: - Justification for moving ovl_entry.h into overlayfs.h - Split allocate anonymous devs patch to 3 patches - Explain why we need to return pseudo st_dev for lower - Fix d_ino of subdirs in non-samefs setup Besides the NFS export unit tests, I tested these patches with upstream xfstest overlay/041 by Chandan and with unionmount test './run --ov --verify' that is avialble on my unionmount devel branch [3]. I asked Chandan to post fixes to his xfstests to cover the impure cases I fixes. Please verify that I didn't mess up authorship when posting Chandan's patches as I did with zhangyi's patch yesterday. On my branch [1], all the commits have correct authorship now. Thanks, Amir. [1] https://github.com/amir73il/linux/commits/ovl-nonsamefs-v6 [2] https://github.com/amir73il/xfstests/commits/ovl-nfs-export [3] https://github.com/amir73il/unionmount-testsuite/commits/overlayfs-devel Amir Goldstein (5): ovl: move include of ovl_entry.h into overlayfs.h ovl: relax same fs constraint for constant st_ino ovl: update cache version of impure parent on rename ovl: update merge dir cache for non-samefs case ovl: update non-merge dir cache for non-samefs case Chandan Rajendra (4): ovl: re-structure overlay lower layers in-memory ovl: allocate anonymous devs for lowerdirs ovl: return anonymous st_dev for lower inodes ovl: fix d_ino of current pure upper in non-samefs case fs/overlayfs/copy_up.c | 1 - fs/overlayfs/dir.c | 12 ++++--- fs/overlayfs/inode.c | 51 +++++++++++++++++++++--------- fs/overlayfs/namei.c | 53 ++++++++++++++++++------------- fs/overlayfs/overlayfs.h | 7 +++-- fs/overlayfs/ovl_entry.h | 14 +++++++-- fs/overlayfs/readdir.c | 50 +++++++++++++++++++++++------- fs/overlayfs/super.c | 81 ++++++++++++++++++++++++++++++------------------ fs/overlayfs/util.c | 17 +++++++--- 9 files changed, 191 insertions(+), 95 deletions(-) -- 2.7.4 -- 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
