2.6.21 (5 files, 17 dirs)
 .mailmap (+98 lines)
 CREDITS (+10 lines)
 MAINTAINERS (+91 lines)
 Makefile (-2 lines)
 README (1 line)
 Documentation (24 files, 28 dirs)
 HOWTO (+1 line)
 SubmitChecklist (+4 lines)
 acpi-hotkey.txt (-38 lines)
 cpu-load.txt (+113 lines)
 cpusets.txt (+3 lines)
 feature-removal-schedule.txt (-12 lines)
 gpio.txt (+306 lines)
 hrtimers.txt (-178 lines)
 ide.txt (-5 lines)
 ioctl-number.txt (-1 line)
 kernel-doc-nano-HOWTO.txt (+29 lines)
 kernel-docs.txt (-15 lines)
 kernel-parameters.txt (+72 lines)
 local_ops.txt (+163 lines)
 magic-number.txt (-1 line)
 nfsroot.txt (2 lines)
 oops-tracing.txt (+6 lines)
 pci.txt (2 lines)
 rbtree.txt (+192 lines)
 rtc.txt (+22 lines)
 sony-laptop.txt (+106 lines)
 sparse.txt (+4 lines)
 sysrq.txt (+2 lines)
 video-output.txt (+34 lines)
 ABI (2 dirs)
 DocBook (4 files)
 arm (1 dir)
 auxdisplay (3 files)
 cdrom (1 file)
 crypto (1 file)
 driver-model (2 files)
 drivers (1 dir)
 fb (1 file)
 filesystems (7 files)
 hrtimer (1 file)
 hrtimers (2 files)
 hwmon (3 files)
 i2c (3 files, 1 dir)
 isdn (1 file)
 kbuild (1 file)
 kdump (1 file)
 networking (2 files)
 power (1 file)
 powerpc (2 files)
 s390 (1 file)
 scsi (1 file)
 sh (1 file)
 sound (1 dir)
 spi (1 file)
 usb (2 files)
 video4linux (7 files, 2 dirs)
 x86_64 (5 files)
 arch (25 dirs)
 block (7 files)
 crypto (22 files)
 drivers (2 files, 59 dirs)
 fs (29 files, 56 dirs)
 include (37 dirs)
 init (7 files)
 ipc (5 files)
 kernel (41 files, 3 dirs)
 lib (19 files)
 mm (27 files)
 net (4 files, 36 dirs)
 scripts (6 files, 3 dirs)
 security (3 files, 2 dirs)
 sound (4 files, 14 dirs)
 usr (2 files)