Linux 5.15.4

[Greg Kroah-Hartman]

I'm announcing the release of the 5.15.4 kernel.

All users of the 5.15 kernel series must upgrade.

The updated 5.15.y git tree can be found at:
	git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-5.15.y
and can be browsed at the normal kernel.org git web browser:
	https://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=summary

thanks,

greg k-h

------------

 Makefile                     |    2 -
 arch/parisc/kernel/entry.S   |    2 -
 arch/x86/kvm/x86.c           |    6 ++--
 drivers/acpi/glue.c          |   25 -------------------
 drivers/acpi/internal.h      |    1 
 drivers/acpi/scan.c          |    6 ----
 drivers/block/loop.c         |   17 +------------
 drivers/bluetooth/btusb.c    |    4 +++
 drivers/gpu/drm/Kconfig      |    5 ++-
 drivers/pci/msi.c            |    3 ++
 drivers/pci/quirks.c         |    6 ++++
 drivers/thermal/thermal_of.c |    9 ++++--
 fs/btrfs/block-group.c       |    1 
 fs/btrfs/ctree.h             |   12 +++++++++
 fs/btrfs/disk-io.c           |    3 +-
 fs/btrfs/extent-tree.c       |   56 ++++++++++++++++++++++++++++++++++++++++---
 fs/btrfs/extent_io.c         |   11 ++++++++
 fs/btrfs/inode.c             |   29 +++++++++++++---------
 fs/btrfs/relocation.c        |   38 ++---------------------------
 fs/btrfs/zoned.c             |   21 ++++++++++++++++
 fs/btrfs/zoned.h             |    3 ++
 include/linux/blkdev.h       |    8 ++++++
 include/linux/pci.h          |    2 +
 include/linux/string.h       |   19 +-------------
 kernel/events/core.c         |   10 +++----
 lib/string_helpers.c         |   20 +++++++++++++++
 security/Kconfig             |    3 ++
 27 files changed, 192 insertions(+), 130 deletions(-)

David Woodhouse (1):
      KVM: Fix steal time asm constraints

Greg Kroah-Hartman (3):
      Revert "drm: fb_helper: improve CONFIG_FB dependency"
      Revert "drm: fb_helper: fix CONFIG_FB dependency"
      Linux 5.15.4

Greg Thelen (1):
      perf/core: Avoid put_page() when GUP fails

Guenter Roeck (1):
      string: uninline memcpy_and_pad

Johannes Thumshirn (6):
      btrfs: introduce btrfs_is_data_reloc_root
      btrfs: zoned: add a dedicated data relocation block group
      btrfs: zoned: only allow one process to add pages to a relocation inode
      btrfs: zoned: use regular writes for relocation
      btrfs: check for relocation inodes on zoned btrfs in should_nocow
      btrfs: zoned: allow preallocation for relocation inodes

Kees Cook (1):
      fortify: Explicitly disable Clang support

Marc Zyngier (2):
      PCI/MSI: Deal with devices lying about their MSI mask capability
      PCI: Add MSI masking quirk for Nvidia ION AHCI

Nicholas Flintham (1):
      Bluetooth: btusb: Add support for TP-Link UB500 Adapter

Rafael J. Wysocki (1):
      Revert "ACPI: scan: Release PM resources blocked by unused objects"

Subbaraman Narayanamurthy (1):
      thermal: Fix NULL pointer dereferences in of_thermal_ functions

Sven Schnelle (1):
      parisc/entry: fix trace test in syscall exit path

Xie Yongji (2):
      block: Add a helper to validate the block size
      loop: Use blk_validate_block_size() to validate block size