Re: [RFC PATCH 00/35] overlayfs: stack file operations

From: Miklos Szeredi
Date: Fri May 04 2018 - 11:23:34 EST


On Thu, Apr 12, 2018 at 5:07 PM, Miklos Szeredi <mszeredi@xxxxxxxxxx> wrote:

> Git tree is here:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs.git overlayfs-rorw

Thanks everyone for your review.

Force pushed new version to the above branch.

Hopefully no comment was missed (I didn't add more reverts yet, those
can wait). I'll do a mailbomb as well next week and start processing
the metacopy patches.

Thanks,
Miklos
---

Miklos Szeredi (38):
vfs: dedpue: return s64
vfs: dedupe: rationalize args
vfs: dedupe: extract helper for a single dedup
vfs: add path_open()
vfs: optionally don't account file in nr_files
vfs: add f_op->pre_mmap()
vfs: export vfs_ioctl() to modules
vfs: export vfs_dedupe_file_range_one() to modules
ovl: copy up times
ovl: copy up inode flags
Revert "Revert "ovl: get_write_access() in truncate""
ovl: copy up file size as well
ovl: deal with overlay files in ovl_d_real()
ovl: stack file ops
ovl: add helper to return real file
ovl: add ovl_read_iter()
ovl: add ovl_write_iter()
ovl: add ovl_fsync()
ovl: add ovl_mmap()
ovl: add ovl_fallocate()
ovl: add lsattr/chattr support
ovl: add ovl_fiemap()
ovl: add O_DIRECT support
ovl: add reflink/copyfile/dedup support
vfs: don't open real
ovl: copy-up on MAP_SHARED
vfs: simplify dentry_open()
Revert "ovl: fix may_write_real() for overlayfs directories"
Revert "ovl: don't allow writing ioctl on lower layer"
vfs: fix freeze protection in mnt_want_write_file() for overlayfs
Revert "ovl: fix relatime for directories"
Revert "vfs: update ovl inode before relatime check"
Revert "vfs: add flags to d_real()"
Revert "vfs: do get_write_access() on upper layer of overlayfs"
Partially revert "locks: fix file locking on overlayfs"
Revert "fsnotify: support overlayfs"
vfs: remove open_flags from d_real()
ovl: fix documentation of non-standard behavior

---
Documentation/filesystems/Locking | 4 +-
Documentation/filesystems/overlayfs.txt | 60 ++--
Documentation/filesystems/vfs.txt | 19 +-
fs/btrfs/ctree.h | 4 +-
fs/btrfs/ioctl.c | 6 +-
fs/file_table.c | 13 +-
fs/inode.c | 46 +--
fs/internal.h | 17 +-
fs/ioctl.c | 1 +
fs/locks.c | 20 +-
fs/namei.c | 2 +-
fs/namespace.c | 69 +----
fs/ocfs2/file.c | 10 +-
fs/open.c | 74 ++---
fs/overlayfs/Kconfig | 21 ++
fs/overlayfs/Makefile | 4 +-
fs/overlayfs/dir.c | 33 ++-
fs/overlayfs/file.c | 506 ++++++++++++++++++++++++++++++++
fs/overlayfs/inode.c | 63 +++-
fs/overlayfs/overlayfs.h | 21 +-
fs/overlayfs/ovl_entry.h | 1 +
fs/overlayfs/super.c | 65 ++--
fs/overlayfs/util.c | 11 +-
fs/read_write.c | 91 +++---
fs/xattr.c | 9 +-
fs/xfs/xfs_file.c | 8 +-
include/linux/dcache.h | 15 +-
include/linux/fs.h | 30 +-
include/linux/fsnotify.h | 14 +-
include/uapi/linux/fs.h | 1 -
mm/util.c | 5 +
31 files changed, 886 insertions(+), 357 deletions(-)
create mode 100644 fs/overlayfs/file.c