[PATCH 00/13] cross rename v4

[Miklos Szeredi]

Changes since the last version (based on Al's review):

 - cross-rename: fix locking of nondirectories for NFSv4
 - ext4: split cross-rename and plain rename into separate functions
 - introduce i_op->rename2 with flags, don't touch ->rename
 - last (optional) patch to merge ->rename2 back into ->rename

The splitting of the ext4 implemetation was indeed a good idea as it uncovered a
memory leak and small inconsistencies with the merged implementation.

Splitting out rename2 will lessen the code churn, but I think is ugly.  However
this is a question of taste, last patch can be ommitted without loss of
functionality.

Bruce, could you please review the locking and delegation thing in patch #8
"vfs: add cross-rename"?

Git tree is here:

  git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs.git cross-rename

Thanks,
Miklos

---
Miklos Szeredi (13):
      vfs: add d_is_dir()
      vfs: rename: move d_move() up
      vfs: rename: use common code for dir and non-dir
      vfs: add renameat2 syscall
      vfs: add RENAME_NOREPLACE flag
      security: add flags to rename hooks
      vfs: lock_two_nondirectories: allow directory args
      vfs: add cross-rename
      ext4: rename: create ext4_renament structure for local vars
      ext4: rename: move EMLINK check up
      ext4: rename: split out helper functions
      ext4: add cross rename support
      vfs: merge rename2 into rename

---
 Documentation/filesystems/Locking                  |   2 +-
 Documentation/filesystems/vfs.txt                  |  14 +-
 arch/x86/syscalls/syscall_64.tbl                   |   1 +
 .../lustre/lustre/include/linux/lustre_compat25.h  |   4 +-
 drivers/staging/lustre/lustre/llite/namei.c        |   3 +-
 drivers/staging/lustre/lustre/lvfs/lvfs_linux.c    |   2 +-
 fs/9p/v9fs.h                                       |   3 +-
 fs/9p/vfs_inode.c                                  |   4 +-
 fs/affs/affs.h                                     |   3 +-
 fs/affs/namei.c                                    |   3 +-
 fs/afs/dir.c                                       |   6 +-
 fs/bad_inode.c                                     |   3 +-
 fs/bfs/dir.c                                       |   3 +-
 fs/btrfs/inode.c                                   |   3 +-
 fs/cachefiles/namei.c                              |   4 +-
 fs/ceph/dir.c                                      |   3 +-
 fs/cifs/cifsfs.h                                   |   2 +-
 fs/cifs/inode.c                                    |   3 +-
 fs/coda/dir.c                                      |   8 +-
 fs/dcache.c                                        |  45 +-
 fs/debugfs/inode.c                                 |   2 +-
 fs/ecryptfs/inode.c                                |   5 +-
 fs/exofs/namei.c                                   |   3 +-
 fs/ext2/namei.c                                    |   5 +-
 fs/ext3/namei.c                                    |   5 +-
 fs/ext4/namei.c                                    | 483 +++++++++++++++------
 fs/ext4/super.c                                    |   6 +-
 fs/f2fs/namei.c                                    |   3 +-
 fs/fat/namei_msdos.c                               |   3 +-
 fs/fat/namei_vfat.c                                |   3 +-
 fs/fuse/dir.c                                      |   3 +-
 fs/gfs2/inode.c                                    |   3 +-
 fs/hfs/dir.c                                       |   3 +-
 fs/hfsplus/dir.c                                   |   3 +-
 fs/hostfs/hostfs_kern.c                            |   3 +-
 fs/hpfs/namei.c                                    |   3 +-
 fs/inode.c                                         |  20 +-
 fs/jffs2/dir.c                                     |   5 +-
 fs/jfs/namei.c                                     |   3 +-
 fs/kernfs/dir.c                                    |   3 +-
 fs/libfs.c                                         |   3 +-
 fs/logfs/dir.c                                     |   3 +-
 fs/minix/namei.c                                   |   5 +-
 fs/namei.c                                         | 310 +++++++------
 fs/ncpfs/dir.c                                     |   5 +-
 fs/nfs/dir.c                                       |   3 +-
 fs/nfs/internal.h                                  |   3 +-
 fs/nfsd/vfs.c                                      |   2 +-
 fs/nilfs2/namei.c                                  |   3 +-
 fs/ocfs2/namei.c                                   |   3 +-
 fs/omfs/dir.c                                      |   3 +-
 fs/reiserfs/namei.c                                |   3 +-
 fs/sysv/namei.c                                    |   5 +-
 fs/ubifs/dir.c                                     |   3 +-
 fs/udf/namei.c                                     |   3 +-
 fs/ufs/namei.c                                     |   3 +-
 fs/xfs/xfs_iops.c                                  |   3 +-
 include/linux/dcache.h                             |   8 +-
 include/linux/fs.h                                 |   7 +-
 include/linux/security.h                           |  12 +-
 include/uapi/linux/fs.h                            |   3 +
 kernel/cgroup.c                                    |   5 +-
 mm/shmem.c                                         |   2 +-
 security/security.c                                |  22 +-
 64 files changed, 736 insertions(+), 372 deletions(-)

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