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ffc1c20c46
Pull device mapper updates from Mike Snitzer: - Add DM writecache "cleaner" policy feature that allows cache to be flushed while userspace monitors for completion to then discommision use of caching. - Optimize DM writecache superblock writing and also yield CPU while initializing writecache on large PMEM devices to avoid CPU stalls. - Various fixes to DM integrity target while preparing for the ability to resize a DM integrity device. In addition to resize support, add optional discard support with the "allow_discards" feature. - Fix DM clone target's discard handling and overflow bugs which could cause data corruption. - Fix memory leak in destructor for DM verity FEC support. - Fix DM zoned target's redundant increment of nr_rnd_zones. - Small cleanup in DM crypt to use crypt_integrity_aead() helper. * tag 'for-5.7/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: dm clone metadata: Fix return type of dm_clone_nr_of_hydrated_regions() dm clone: Add missing casts to prevent overflows and data corruption dm clone: Add overflow check for number of regions dm clone: Fix handling of partial region discards dm writecache: add cond_resched to avoid CPU hangs dm integrity: improve discard in journal mode dm integrity: add optional discard support dm integrity: allow resize of the integrity device dm integrity: factor out get_provided_data_sectors() dm integrity: don't replay journal data past the end of the device dm integrity: remove sector type casts dm integrity: fix a crash with unusually large tag size dm zoned: remove duplicate nr_rnd_zones increase in dmz_init_zone() dm verity fec: fix memory leak in verity_fec_dtr dm writecache: optimize superblock write dm writecache: implement gradual cleanup dm writecache: implement the "cleaner" policy dm writecache: do direct write if the cache is full dm integrity: print device name in integrity_metadata() error message dm crypt: use crypt_integrity_aead() helper
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.