ext2/3/4: use generic posix ACL infrastructure

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --cc fs/ext2/acl.c
Simple merge

diff --cc fs/ext2/acl.h
Simple merge

diff --cc fs/ext2/file.c
Simple merge

diff --cc fs/ext2/inode.c
Simple merge

diff --cc fs/ext2/namei.c
Simple merge

diff --cc fs/ext2/xattr.c
Simple merge

diff --cc fs/ext2/xattr.h
Simple merge

diff --cc fs/ext3/acl.c
Simple merge

diff --cc fs/ext3/acl.h
Simple merge

diff --cc fs/ext3/file.c
Simple merge

diff --cc fs/ext3/inode.c
Simple merge

diff --cc fs/ext3/namei.c
Simple merge

diff --cc fs/ext3/xattr.c
Simple merge

diff --cc fs/ext3/xattr.h
Simple merge

diff --cc fs/ext4/acl.c
Simple merge

diff --cc fs/ext4/acl.h
Simple merge

diff --cc fs/ext4/file.c
Simple merge

diff --cc fs/ext4/inode.c
Simple merge

diff --cc fs/ext4/namei.c
Simple merge

diff --cc fs/ext4/xattr.c
Simple merge

diff --cc fs/ext4/xattr.h
Simple merge