Features and bug fixes for Linux kernel 3.2.

[Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>]

Hey,

Please keep in mind that there is some outstanding work going on which
could make it in 3.2 depending on when the merge window opens. I will
enumerate those in the next email.

Anyhow, for 3.2 Linux kernel we have these items loaded and ready to go:

 - A new mechanism to parse the E820 resulting in better ballooning.
 - hwclock support. Meaning you can do 'date XX' and it will be saved by machine.
 - Support for PCI multi-segmented machines (big big iron boxes)
 - Optimizations in DMA API.
 - "feature-barrier" in the xen-blkback so that older kernels (SLES10)
   can issue those.
 - "feature-discard" so that TRIM/SCSI UNMAP operations can be utilized.
 - kexec/kdump support for PVonHVM.
 - Cleanups in the code (mostly scripts/cleanpatch.pl)
 - Static analyzer (smatch) run results fixing bugs.
 - Tons of bug fixes.

If you think I missed something - please please email me immediately.


The list is as follow.

Dan Carpenter (1):
      xen/pciback: double lock typo

David Vrabel (9):
      xen/balloon: account for pages released during memory setup
      xen/balloon: simplify test for the end of usable RAM
      xen: allow balloon driver to use more than one memory region
      xen: allow extra memory to be in multiple regions
      xen: release all pages within 1-1 p2m mappings
      xen: use generic functions instead of xen_{alloc, free}_vm_area()
      block: xen-blkback: use API provided by xenbus module to map rings
      net: xen-netback: use API provided by xenbus module to map rings
      xen: map foreign pages for shared rings by updating the PTEs directly

Jan Beulich (5):
      xen/pci: make bus notifier handler return sane values
      xen/pciback: use mutex rather than spinlock in passthrough backend
      xen/pciback: miscellaneous adjustments
      xen/pci: support multi-segment systems
      xen-blkback: use kzalloc() in favor of kmalloc()+memset()

Jeremy Fitzhardinge (2):
      xen: add dom0_op hypercall
      xen/dom0: set wallclock time in Xen

Joe Jin (1):
      xen-blkback: fixed indentation and comments

Konrad Rzeszutek Wilk (24):
      Revert "xen/debug: WARN_ON when identity PFN has no _PAGE_IOMAP flag set."
      xen-pcifront: Update warning comment to use 'e820_host' option.
      xen-swiotlb: Retry up three times to allocate Xen-SWIOTLB
      xen-swiotlb: Fix wrong panic.
      xen-swiotlb: When doing coherent alloc/dealloc check before swizzling the MFNs.
      xen/pciback: Use mutexes when working with Xenbus state transitions.
      xen/pciback: use mutex rather than spinlock in vpci backend
      xen/p2m: Make debug/xen/mmu/p2m visible again.
      xen/p2m: Use SetPagePrivate and its friends for M2P overrides.
      x86/paravirt: Partially revert "remove lazy mode in interrupts"
      xen/pv-on-hvm:kexec: Fix implicit declaration of function 'xen_hvm_domain'
      xen/pciback: Do not dereference psdev during printk when it is NULL.
      xen-blkfront: If no barrier or flush is supported, use invalid operation.
      xen/blkback: Support 'feature-barrier' aka old-style BARRIER requests.
      xen/blkback: Report VBD_WSECT (wr_sect) properly.
      xen/blkback: Fix the inhibition to map pages when discarding sector ranges.
      xen/pciback: Check if the device is found instead of blindly assuming so.
      xen/events: BUG() when we can't allocate our event->irq array.
      xen/events: Don't check the info for NULL as it is already done.
      xen/irq: If we fail during msi_capability_init return proper error code.
      xen/xenbus: Remove the unnecessary check.
      xen/enlighten: Fix compile warnings and set cx to known value.
      xen/p2m/debugfs: Fix potential pointer exception.
      xen/p2m/debugfs: Make type_name more obvious.

Laszlo Ersek (1):
      xen-blkfront: plug device number leak in xlblk_init() error path

Li Dongyang (4):
      xen-blkfront: add BLKIF_OP_DISCARD and discard request struct
      xen-blkback: Implement discard requests ('feature-discard')
      xen-blkfront: Handle discard requests.
      xen-blkfront: fix a deadlock while handling discard response

Olaf Hering (6):
      xen: use static initializers in xen-balloon.c
      xen/pv-on-hvm kexec: prevent crash in xenwatch_thread() when stale watch events arrive
      xen/pv-on-hvm kexec: rebind virqs to existing eventchannel ports
      xen/pv-on-hvm kexec+kdump: reset PV devices in kexec or crash kernel
      xen/pv-on-hvm kexec: update xs_wire.h:xsd_sockmsg_type from xen-unstable
      xen/pv-on-hvm kexec: add xs_reset_watches to shutdown watches from old kernel

Randy Dunlap (1):
      xen-swiotlb: fix printk and panic args

Ruslan Pisarev (6):
      Xen: fix whitespaces,tabs coding style issue in drivers/xen/balloon.c
      Xen: fix whitespaces,tabs coding style issue in drivers/xen/events.c
      Xen: fix braces coding style issue in gntdev.c and grant-table.c
      Xen: fix whitespaces,tabs coding style issue in drivers/xen/pci.c
      Xen: fix braces coding style issue in xenbus_probe.h
      Xen: fix braces and tabs coding style issue in xenbus_probe.c

Stefano Stabellini (4):
      xen: add an "highmem" parameter to alloc_xenballooned_pages
      xen: modify kernel mappings corresponding to granted pages
      xen: XEN_PVHVM depends on PCI
      xen: remove XEN_PLATFORM_PCI config option

Thomas Meyer (1):
      xen/pciback: use resource_size()

Yu Ke (1):
      xen/acpi: Domain0 acpi parser related platform hypercall