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c608aca57d
Pull btrfs fixes from David Sterba:
"This is the first batch of fixes that usually arrive during the merge
window code freeze. Regressions and stable material.
Regressions:
- fix deadlock in log sync in zoned mode
- fix bugs in subpage mode still wrongly assuming sectorsize == page
size
Fixes:
- fix missing kunmap of the Q stripe in RAID6
- block group fixes:
- fix race between extent freeing/allocation when using bitmaps
- avoid double put of block group when emptying cluster
- swapfile fixes:
- fix swapfile writes vs running scrub
- fix swapfile activation vs snapshot creation
- fix stale data exposure after cloning a hole with NO_HOLES enabled
- remove tree-checker check that does not work in case information
from other leaves is necessary"
* tag 'for-5.12-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: zoned: fix deadlock on log sync
btrfs: avoid double put of block group when emptying cluster
btrfs: fix stale data exposure after cloning a hole with NO_HOLES enabled
btrfs: tree-checker: do not error out if extent ref hash doesn't match
btrfs: fix race between swap file activation and snapshot creation
btrfs: fix race between writes to swap files and scrub
btrfs: avoid checking for RO block group twice during nocow writeback
btrfs: fix race between extent freeing/allocation when using bitmaps
btrfs: make check_compressed_csum() to be subpage compatible
btrfs: make btrfs_submit_compressed_read() subpage compatible
btrfs: fix raid6 qstripe kmap
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.