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Merge tag 'mm-nonmm-stable-2025-08-03-12-47' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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Pull non-MM updates from Andrew Morton:
 "Significant patch series in this pull request:

   - "squashfs: Remove page->mapping references" (Matthew Wilcox) gets
     us closer to being able to remove page->mapping

   - "relayfs: misc changes" (Jason Xing) does some maintenance and
     minor feature addition work in relayfs

   - "kdump: crashkernel reservation from CMA" (Jiri Bohac) switches
     us from static preallocation of the kdump crashkernel's working
     memory over to dynamic allocation. So the difficulty of a-priori
     estimation of the second kernel's needs is removed and the first
     kernel obtains extra memory

   - "generalize panic_print's dump function to be used by other
     kernel parts" (Feng Tang) implements some consolidation and
     rationalization of the various ways in which a failing kernel
     splats information at the operator

* tag 'mm-nonmm-stable-2025-08-03-12-47' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (80 commits)
  tools/getdelays: add backward compatibility for taskstats version
  kho: add test for kexec handover
  delaytop: enhance error logging and add PSI feature description
  samples: Kconfig: fix spelling mistake "instancess" -> "instances"
  fat: fix too many log in fat_chain_add()
  scripts/spelling.txt: add notifer||notifier to spelling.txt
  xen/xenbus: fix typo "notifer"
  net: mvneta: fix typo "notifer"
  drm/xe: fix typo "notifer"
  cxl: mce: fix typo "notifer"
  KVM: x86: fix typo "notifer"
  MAINTAINERS: add maintainers for delaytop
  ucount: use atomic_long_try_cmpxchg() in atomic_long_inc_below()
  ucount: fix atomic_long_inc_below() argument type
  kexec: enable CMA based contiguous allocation
  stackdepot: make max number of pools boot-time configurable
  lib/xxhash: remove unused functions
  init/Kconfig: restore CONFIG_BROKEN help text
  lib/raid6: update recov_rvv.c zero page usage
  docs: update docs after introducing delaytop
  ...
This commit is contained in:
Linus Torvalds
2025-08-03 16:23:09 -07:00
parent 3c4a063b1f 085dece6cc
commit e991acf1bc
106 changed files with 2885 additions and 600 deletions
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20
lib/Kconfig.debug
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@@ -3214,6 +3214,26 @@ config TEST_OBJPOOL
If unsure, say N.
config TEST_KEXEC_HANDOVER
bool "Test for Kexec HandOver"
default n
depends on KEXEC_HANDOVER
help
This option enables test for Kexec HandOver (KHO).
The test consists of two parts: saving kernel data before kexec and
restoring the data after kexec and verifying that it was properly
handed over. This test module creates and saves data on the boot of
the first kernel and restores and verifies the data on the boot of
kexec'ed kernel.
For detailed documentation about KHO, see Documentation/core-api/kho.
To run the test run:
tools/testing/selftests/kho/vmtest.sh -h
If unsure, say N.
config RATELIMIT_KUNIT_TEST
tristate "KUnit Test for correctness and stress of ratelimit" if !KUNIT_ALL_TESTS
depends on KUNIT