Kernel Linux 2.6.27 has been released

[atula]

Summary: 2.6.27 add a new filesystem (UBIFS) optimized for "pure" flash-based storage devices, the page-cache is now lockless, much improved Direct I/O scalability and performance, delayed allocation for ext4, multiqueue networking, an alternative hibernation implementation based on kexec/kdump, data integrity support in the block layer for devices that support it, a simple tracer called ftrace, a mmio tracer, sysprof support, extraction of all the in-kernel's firmware to /lib/firmware, XEN support for saving/restorig VMs, improved video camera support, support for the Intel wireless 5000 series and RTL8187B network cards, a new ath9k driver for the Atheros AR5008 and AR9001 family of chipsets, more new drivers, improved support for others and many other improvements and fixes.
Contents

1. Prominent features (the cool stuff)
   1. Lockless page cache and get_user_pages()
   2. Ext4: Delayed Allocation
   3. Kexec jump: kexec/kdump based hibernation
   4. UBIFS and OMFS
   5. Block layer data integrity support
   6. Multiqueue networking
   7. ftrace, sysprof support
   8. Mmiotrace
   9. External firmware
   10. Improved video camera support with the gspca driver
   11. Extended file descriptor system calls
   12. Voltage and Current Regulator
2. Architecture-specific changes
3. Core
4. Crypto
5. Security
6. Networking
7. Filesystems
8. Drivers
   1. Graphics
   2. IDE/SATA
   3. Network
   4. SCSI
   5. Sound
   6. V4L/DVB
   7. Input
   8. USB
   9. FireWire
   10. MTD
   11. RTC
   12. WATCHDOG
   13. Bluetooth
   14. I2C
   15. Infiniband/RDMA
   16. MMC
   17. HWMON
   18. ACPI
   19. Various
9. The Linux Kernel in the news