Hi, Here are V12 of the metadata only copy up patches. Patches are also available here. https://github.com/rhvgoyal/linux/tree/metacopy-v12 Changes from V11: - Rebased on latest kernel - Follow metacopy source using REDIRECT instead of ORIGIN - Support metacopy xattr in mid layer. Please have a look. Amir, few patches have changed and you might have to look at it again. Also, I have disabled metacopy support when nfs_export=on. I am not sure if I can make it work for nfs_export easily or not. Will need to spend more time understanding nfs_export stuff. Thanks Vivek Vivek Goyal (17): ovl: redirect_dir=nofollow can follow redirect for opaque lower ovl: Provide a mount option metacopy=on/off for metadata copyup ovl: During copy up, first copy up metadata and then data ovl: Move the copy up helpers to copy_up.c ovl: Copy up only metadata during copy up where it makes sense ovl: Add helper ovl_already_copied_up() ovl: A new xattr OVL_XATTR_METACOPY for file on upper ovl: Modify ovl_lookup() and friends to lookup metacopy dentry ovl: Do not mark a non dir as _OVL_PATH_MERGE in ovl_path_type() ovl: Copy up meta inode data from lowest data inode ovl: Fix ovl_getattr() to get number of blocks from lower ovl: Do not expose metacopy only upper dentry from d_real() ovl: Check redirects for metacopy files ovl: Set redirect on metacopy files upon rename ovl: Remove redirect when data of a metacopy file is copied up ovl: Set redirect on upper inode when it is linked ovl: Enable metadata only feature Documentation/filesystems/overlayfs.txt | 30 +++++- fs/overlayfs/Kconfig | 17 ++++ fs/overlayfs/copy_up.c | 165 +++++++++++++++++++++++++------- fs/overlayfs/dir.c | 32 +++++-- fs/overlayfs/export.c | 3 + fs/overlayfs/inode.c | 49 ++++------ fs/overlayfs/namei.c | 142 +++++++++++++++++++++++---- fs/overlayfs/overlayfs.h | 22 ++++- fs/overlayfs/ovl_entry.h | 1 + fs/overlayfs/super.c | 62 +++++++++++- fs/overlayfs/util.c | 138 +++++++++++++++++++++++++- 11 files changed, 554 insertions(+), 107 deletions(-) -- 2.13.6 -- 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
