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authorLinus Torvalds <torvalds@linux-foundation.org>2021-02-22 11:04:36 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2021-02-22 11:04:36 -0800
commitb2bec7d8a42a3885d525e821d9354b6b08fd6adf (patch)
tree8198d77e5b2fb8fc645ae42662b93a575910a032 /mm/slub.c
parent783955f03de770e94a1200b8f719975f8768e76c (diff)
parent16182ac1f02c8a5fc9753f9b8b5f3ef8c01707d8 (diff)
downloadlinux-b2bec7d8a42a3885d525e821d9354b6b08fd6adf.tar.gz
Merge tag 'printk-for-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux
Pull printk updates from Petr Mladek:

 - New "no_hash_pointers" kernel parameter causes that %p shows raw
   pointer values instead of hashed ones. It is intended only for
   debugging purposes. Misuse is prevented by a fat warning message that
   is inspired by trace_printk().

 - Prevent a possible deadlock when flushing printk_safe buffers during
   panic().

 - Fix performance regression caused by the lockless printk ringbuffer.
   It was visible with huge log buffer and long messages.

 - Documentation fix-up.

* tag 'printk-for-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux:
  lib/vsprintf: no_hash_pointers prints all addresses as unhashed
  kselftest: add support for skipped tests
  lib: use KSTM_MODULE_GLOBALS macro in kselftest drivers
  printk: avoid prb_first_valid_seq() where possible
  printk: fix deadlock when kernel panic
  printk: rectify kernel-doc for prb_rec_init_wr()
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