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6cdbb0907a
- Fix DM crypt target's crypt_ctr_cipher_new return value on invalid
AEAD cipher.
- Fix DM flakey testing target's write bio corruption feature to
corrupt the data of a cloned bio instead of the original.
- Add random_read_corrupt and random_write_corrupt features to DM
flakey target.
- Fix ABBA deadlock in DM thin metadata by resetting associated bufio
client rather than destroying and recreating it.
- A couple other small DM thinp cleanups.
- Update DM core to support disabling block core IO stats accounting
and optimize away code that isn't needed if stats are disabled.
- Other small DM core cleanups.
- Improve DM integrity target to not require so much memory on 32 bit
systems. Also only allocate the recalculate buffer as needed (and
increasingly reduce its size on allocation failure).
- Update DM integrity to use %*ph for printing hexdump of a small
buffer. Also update DM integrity documentation.
- Various DM core ioctl interface hardening. Now more careful about
alignment of structures and processing of input passed to the kernel
from userspace. Also disallow the creation of DM devices named
"control", "." or ".."
- Eliminate GFP_NOIO workarounds for __vmalloc and kvmalloc in DM
core's ioctl and bufio code.
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Merge tag 'for-6.5/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper updates from Mike Snitzer:
- Update DM crypt to allocate compound pages if possible
- Fix DM crypt target's crypt_ctr_cipher_new return value on invalid
AEAD cipher
- Fix DM flakey testing target's write bio corruption feature to
corrupt the data of a cloned bio instead of the original
- Add random_read_corrupt and random_write_corrupt features to DM
flakey target
- Fix ABBA deadlock in DM thin metadata by resetting associated bufio
client rather than destroying and recreating it
- A couple other small DM thinp cleanups
- Update DM core to support disabling block core IO stats accounting
and optimize away code that isn't needed if stats are disabled
- Other small DM core cleanups
- Improve DM integrity target to not require so much memory on 32 bit
systems. Also only allocate the recalculate buffer as needed (and
increasingly reduce its size on allocation failure)
- Update DM integrity to use %*ph for printing hexdump of a small
buffer. Also update DM integrity documentation
- Various DM core ioctl interface hardening. Now more careful about
alignment of structures and processing of input passed to the kernel
from userspace.
Also disallow the creation of DM devices named "control", "." or ".."
- Eliminate GFP_NOIO workarounds for __vmalloc and kvmalloc in DM
core's ioctl and bufio code
* tag 'for-6.5/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: (28 commits)
dm: get rid of GFP_NOIO workarounds for __vmalloc and kvmalloc
dm integrity: scale down the recalculate buffer if memory allocation fails
dm integrity: only allocate recalculate buffer when needed
dm integrity: reduce vmalloc space footprint on 32-bit architectures
dm ioctl: Refuse to create device named "." or ".."
dm ioctl: Refuse to create device named "control"
dm ioctl: Avoid double-fetch of version
dm ioctl: structs and parameter strings must not overlap
dm ioctl: Avoid pointer arithmetic overflow
dm ioctl: Check dm_target_spec is sufficiently aligned
Documentation: dm-integrity: Document an example of how the tunables relate.
Documentation: dm-integrity: Document default values.
Documentation: dm-integrity: Document the meaning of "buffer".
Documentation: dm-integrity: Fix minor grammatical error.
dm integrity: Use %*ph for printing hexdump of a small buffer
dm thin: disable discards for thin-pool if no_discard_passdown
dm: remove stale/redundant dm_internal_{suspend,resume} prototypes in dm.h
dm: skip dm-stats work in alloc_io() unless needed
dm: avoid needless dm_io access if all IO accounting is disabled
dm: support turning off block-core's io stats accounting
...
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.