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Message-ID: <20140131170730.GM24171@tucsk.piliscsaba.szeredi.hu> Date: Fri, 31 Jan 2014 18:07:30 +0100 From: Miklos Szeredi <miklos@...redi.hu> To: Linus Torvalds <torvalds@...ux-foundation.org> Cc: Al Viro <viro@...iv.linux.org.uk>, linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org Subject: Re: [GIT PULL] rename2 syscall Hi Linus, On Thu, Jan 23, 2014 at 09:56:56AM +0100, Miklos Szeredi wrote: > Could you please consider pulling the cross-rename patches. The git tree has a > conflict in arch/x86/syscalls/syscall_64.tbl where the syscall number needs to > be fixed. The patchset has been reviewed by Jan Kara and the man page and > usperpace API by Michael Kerrisk. > > git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs.git cross-rename I updated the cross-rename patches to apply cleanly against latest mainline (three trivial conflicts and fixup of up a warning in fs/kernfs/dir.c). The updated tree is here: git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs.git cross-rename.rebase Please pull. Thanks, Miklos > > This series adds a new syscall, renameat2(), which is the same as renameat() but > with a flags argument. > > The purpose of extending rename is to add cross-rename, a symmetric variant of > rename, which exchanges the two files. This allows interesting things, which > were not possible before, for example atomically replacing a directory tree with > a symlink, etc... This also allows overlayfs and friends to operate on > whiteouts atomically. > > Andy Lutomirski also suggested a "noreplace" flag, which disables the > overwriting behavior of rename. > > These two flags, RENAME_EXCHANGE and RENAME_NOREPLACE are only implemented for > ext4 as an example and for testing. > > Thanks, > Miklos > ---- > > Miklos Szeredi (11): > 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: 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 > > --- > Documentation/filesystems/Locking | 2 +- > Documentation/filesystems/vfs.txt | 4 +- > 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 | 46 ++- > 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 | 396 ++++++++++++++------- > 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 | 5 +- > fs/hpfs/namei.c | 3 +- > fs/jffs2/dir.c | 5 +- > fs/jfs/namei.c | 3 +- > fs/libfs.c | 3 +- > fs/logfs/dir.c | 3 +- > fs/minix/namei.c | 5 +- > fs/namei.c | 317 +++++++++-------- > 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 +- > 62 files changed, 631 insertions(+), 367 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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