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Subject[PATCH 00/38] Union mounts - multiple layers and submounts
Date
This version of union mounts adds support for more than one read-only
layer and submounts in the read-only layers. It replaces the clumsy
array of vfsmounts in the topmost superblock with a pointer to the
root of a cloned vfsmount tree of all the read-only mounts to be
unioned.

This branch is named "submounts" and is in the usual git tree:

git://git.kernel.org/pub/scm/linux/kernel/git/val/linux-2.6.git

FYI, I'll be on vacation for the next two weeks and not reading email.

-VAL

Felix Fietkau (2):
whiteout: jffs2 whiteout support
fallthru: jffs2 fallthru support

Jan Blunck (11):
VFS: Make lookup_hash() return a struct path
autofs4: Save autofs trigger's vfsmount in super block info
whiteout/NFSD: Don't return information about whiteouts to userspace
whiteout: Add vfs_whiteout() and whiteout inode operation
whiteout: Set S_OPAQUE inode flag when creating directories
whiteout: Allow removal of a directory with whiteouts
whiteout: tmpfs whiteout support
whiteout: Split of ext2_append_link() from ext2_add_link()
whiteout: ext2 whiteout support
union-mount: Introduce MNT_UNION and MS_UNION flags
union-mount: Call do_whiteout() on unlink and rmdir in unions

Valerie Aurora (25):
VFS: Comment follow_mount() and friends
VFS: Add read-only users count to superblock
fallthru: Basic fallthru definitions
fallthru: ext2 fallthru support
fallthru: tmpfs fallthru support
union-mount: Union mounts documentation
union-mount: Introduce union_dir structure and basic operations
union-mount: Free union dirs on removal from dcache
union-mount: Support for mounting union mount file systems
union-mount: Implement union lookup
union-mount: Copy up directory entries on first readdir()
VFS: Split inode_permission() and create path_permission()
VFS: Create user_path_nd() to lookup both parent and target
union-mount: In-kernel file copyup routines
union-mount: Implement union-aware access()/faccessat()
union-mount: Implement union-aware link()
union-mount: Implement union-aware rename()
union-mount: Implement union-aware writable open()
union-mount: Implement union-aware chown()
union-mount: Implement union-aware truncate()
union-mount: Implement union-aware chmod()/fchmodat()
union-mount: Implement union-aware lchown()
union-mount: Implement union-aware utimensat()
union-mount: Implement union-aware setxattr()
union-mount: Implement union-aware lsetxattr()

Documentation/filesystems/union-mounts.txt | 752 +++++++++++++++++++++++++++
Documentation/filesystems/vfs.txt | 16 +-
fs/Kconfig | 13 +
fs/Makefile | 1 +
fs/autofs4/autofs_i.h | 1 +
fs/autofs4/init.c | 11 +-
fs/autofs4/root.c | 6 +
fs/compat.c | 9 +
fs/dcache.c | 32 ++-
fs/ext2/dir.c | 248 +++++++++-
fs/ext2/ext2.h | 4 +
fs/ext2/inode.c | 11 +-
fs/ext2/namei.c | 89 ++++-
fs/ext2/super.c | 6 +
fs/jffs2/dir.c | 104 ++++-
fs/jffs2/fs.c | 4 +
fs/jffs2/super.c | 2 +-
fs/libfs.c | 21 +-
fs/namei.c | 754 ++++++++++++++++++++++++----
fs/namespace.c | 279 ++++++++++-
fs/nfsd/nfs3xdr.c | 5 +
fs/nfsd/nfs4xdr.c | 5 +
fs/nfsd/nfsxdr.c | 4 +
fs/open.c | 116 ++++-
fs/readdir.c | 18 +
fs/super.c | 24 +
fs/union.c | 692 +++++++++++++++++++++++++
fs/union.h | 80 +++
fs/utimes.c | 14 +-
fs/xattr.c | 65 ++-
include/linux/dcache.h | 16 +-
include/linux/ext2_fs.h | 5 +
include/linux/fs.h | 23 +
include/linux/jffs2.h | 8 +
include/linux/mount.h | 6 +-
include/linux/namei.h | 2 +
mm/shmem.c | 195 +++++++-
37 files changed, 3459 insertions(+), 182 deletions(-)
create mode 100644 Documentation/filesystems/union-mounts.txt
create mode 100644 fs/union.c
create mode 100644 fs/union.h


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