Commit e5eb28f6 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'mm-nonmm-stable-2024-03-14-09-36' of... 

Merge tag 'mm-nonmm-stable-2024-03-14-09-36' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull non-MM updates from Andrew Morton:

 - Kuan-Wei Chiu has developed the well-named series "lib min_heap: Min
   heap optimizations".

 - Kuan-Wei Chiu has also sped up the library sorting code in the series
   "lib/sort: Optimize the number of swaps and comparisons".

 - Alexey Gladkov has added the ability for code running within an IPC
   namespace to alter its IPC and MQ limits. The series is "Allow to
   change ipc/mq sysctls inside ipc namespace".

 - Geert Uytterhoeven has contributed some dhrystone maintenance work in
   the series "lib: dhry: miscellaneous cleanups".

 - Ryusuke Konishi continues nilfs2 maintenance work in the series

	"nilfs2: eliminate kmap and kmap_atomic calls"
	"nilfs2: fix kernel bug at submit_bh_wbc()"

 - Nathan Chancellor has updated our build tools requirements in the
   series "Bump the minimum supported version of LLVM to 13.0.1".

 - Muhammad Usama Anjum continues with the selftests maintenance work in
   the series "selftests/mm: Improve run_vmtests.sh".

 - Oleg Nesterov has done some maintenance work against the signal code
   in the series "get_signal: minor cleanups and fix".

Plus the usual shower of singleton patches in various parts of the tree.
Please see the individual changelogs for details.

* tag 'mm-nonmm-stable-2024-03-14-09-36' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (77 commits)
  nilfs2: prevent kernel bug at submit_bh_wbc()
  nilfs2: fix failure to detect DAT corruption in btree and direct mappings
  ocfs2: enable ocfs2_listxattr for special files
  ocfs2: remove SLAB_MEM_SPREAD flag usage
  assoc_array: fix the return value in assoc_array_insert_mid_shortcut()
  buildid: use kmap_local_page()
  watchdog/core: remove sysctl handlers from public header
  nilfs2: use div64_ul() instead of do_div()
  mul_u64_u64_div_u64: increase precision by conditionally swapping a and b
  kexec: copy only happens before uchunk goes to zero
  get_signal: don't initialize ksig->info if SIGNAL_GROUP_EXIT/group_exec_task
  get_signal: hide_si_addr_tag_bits: fix the usage of uninitialized ksig
  get_signal: don't abuse ksig->info.si_signo and ksig->sig
  const_structs.checkpatch: add device_type
  Normalise "name (ad@dr)" MODULE_AUTHORs to "name <ad@dr>"
  dyndbg: replace kstrdup() + strchr() with kstrdup_and_replace()
  list: leverage list_is_head() for list_entry_is_head()
  nilfs2: MAINTAINERS: drop unreachable project mirror site
  smp: make __smp_processor_id() 0-argument macro
  fat: fix uninitialized field in nostale filehandles
  ...
parents 902861e3 269cdf35

Documentation/admin-guide/kernel-parameters.txt

+1 −0
Original line number Diff line number Diff line
@@ -4211,6 +4211,7 @@ 
			bit 4: print ftrace buffer

			bit 5: print all printk messages in buffer

			bit 6: print all CPUs backtrace (if available in the arch)

			bit 7: print only tasks in uninterruptible (blocked) state

			*Be aware* that this option may print a _lot_ of lines,

			so there are risks of losing older messages in the log.

			Use this option carefully, maybe worth to setup a

Documentation/admin-guide/sysctl/kernel.rst

+12 −3
Original line number Diff line number Diff line
@@ -594,6 +594,9 @@ default (``MSGMNB``). 
``msgmni`` is the maximum number of IPC queues. 32000 by default

(``MSGMNI``).



All of these parameters are set per ipc namespace. The maximum number of bytes

in POSIX message queues is limited by ``RLIMIT_MSGQUEUE``. This limit is

respected hierarchically in the each user namespace.



msg_next_id, sem_next_id, and shm_next_id (System V IPC)

========================================================
@@ -850,6 +853,7 @@ bit 3 print locks info if ``CONFIG_LOCKDEP`` is on 
bit 4  print ftrace buffer

bit 5  print all printk messages in buffer

bit 6  print all CPUs backtrace (if available in the arch)

bit 7  print only tasks in uninterruptible (blocked) state

=====  ============================================



So for example to print tasks and memory info on panic, user can::
@@ -1274,15 +1278,20 @@ are doing anyway :) 
shmall

======



This parameter sets the total amount of shared memory pages that

can be used system wide. Hence, ``shmall`` should always be at least

``ceil(shmmax/PAGE_SIZE)``.

This parameter sets the total amount of shared memory pages that can be used

inside ipc namespace. The shared memory pages counting occurs for each ipc

namespace separately and is not inherited. Hence, ``shmall`` should always be at

least ``ceil(shmmax/PAGE_SIZE)``.



If you are not sure what the default ``PAGE_SIZE`` is on your Linux

system, you can run the following command::



	# getconf PAGE_SIZE



To reduce or disable the ability to allocate shared memory, you must create a

new ipc namespace, set this parameter to the required value and prohibit the

creation of a new ipc namespace in the current user namespace or cgroups can

be used.



shmmax

======

Documentation/process/changes.rst

+1 −1
Original line number Diff line number Diff line
@@ -30,7 +30,7 @@ you probably needn't concern yourself with pcmciautils. 
        Program        Minimal version       Command to check the version

====================== ===============  ========================================

GNU C                  5.1              gcc --version

Clang/LLVM (optional)  11.0.0           clang --version

Clang/LLVM (optional)  13.0.1           clang --version

Rust (optional)        1.76.0           rustc --version

bindgen (optional)     0.65.1           bindgen --version

GNU make               3.82             make --version

MAINTAINERS

+0 −1
Original line number Diff line number Diff line
@@ -15501,7 +15501,6 @@ M: Ryusuke Konishi <konishi.ryusuke@gmail.com> 
L:	linux-nilfs@vger.kernel.org

S:	Supported

W:	https://nilfs.sourceforge.io/

W:	https://nilfs.osdn.jp/

T:	git https://github.com/konis/nilfs2.git

F:	Documentation/filesystems/nilfs2.rst

F:	fs/nilfs2/

Makefile

+0 −8
Original line number Diff line number Diff line
@@ -950,14 +950,6 @@ CC_FLAGS_LTO += -fvisibility=hidden 


# Limit inlining across translation units to reduce binary size

KBUILD_LDFLAGS += -mllvm -import-instr-limit=5



# Check for frame size exceeding threshold during prolog/epilog insertion

# when using lld < 13.0.0.

ifneq ($(CONFIG_FRAME_WARN),0)

ifeq ($(call test-lt, $(CONFIG_LLD_VERSION), 130000),y)

KBUILD_LDFLAGS	+= -plugin-opt=-warn-stack-size=$(CONFIG_FRAME_WARN)

endif

endif

endif



ifdef CONFIG_LTO