Hi, Please find attached V11 of patches. Looks like now new design might change these patches significantly based on Miklos's feedback. So I am posting my latest patches based on current design. Just in case we decide that we want to stick to old design. Change from V10: - Based on Amir's feedback, I am not storing the full origin chain in lowerstack now. Instead now I am storing only two dentries at max in lowerstack. lowerstack[0] will point to top most metacopy dentry in lower and lowerstack[1] will have data dentry. Thanks Vivek Amir Goldstein (1): ovl: disable redirect_dir and index when no xattr support Vivek Goyal (17): ovl: Do not look for OVL_XATTR_NLINK if index is not there ovl: Create origin xattr on copy up for all files 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: Set OVL_UPPERDATA flag during ovl_lookup() ovl: Allocate bigger stack for origin ovl: Get and install lower most data dentry in stack ovl: Setup origin chain for lower regular files 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: Enable metadata only feature Documentation/filesystems/overlayfs.txt | 54 +++++++--- fs/overlayfs/Kconfig | 15 +++ fs/overlayfs/copy_up.c | 172 +++++++++++++++++++++++--------- fs/overlayfs/dir.c | 1 + fs/overlayfs/inode.c | 60 ++++------- fs/overlayfs/namei.c | 154 +++++++++++++++++++++++++++- fs/overlayfs/overlayfs.h | 24 ++++- fs/overlayfs/ovl_entry.h | 1 + fs/overlayfs/super.c | 64 ++++++++++-- fs/overlayfs/util.c | 134 ++++++++++++++++++++++++- 10 files changed, 566 insertions(+), 113 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
