linux-next.git/Documentation/dev-tools, branch master

Merge branch 'docs-next' of git://git.lwn.net/linux.git

2026-08-19T11:29:00+00:00

# Conflicts: # Documentation/process/coding-assistants.rst

Merge branch 'mm-unstable' of https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2026-08-19T11:13:01+00:00

Documentation: kmemleak: document the conditional min_unref_scans default

2026-08-19T04:51:11+00:00

min_unref_scans now defaults to 2 when CONFIG_DEBUG_KMEMLEAK_AUTO_SCAN and CONFIG_DEBUG_KMEMLEAK_VERBOSE are both enabled, but the documentation still states that the default is unconditionally 1. Link: https://lore.kernel.org/20260731-kmemleak_hardened-v2-2-7b9689ac77cb@debian.org Signed-off-by: Breno Leitao Acked-by: Catalin Marinas Cc: David Hildenbrand Cc: Jonathan Corbet Cc: Liam R. Howlett Cc: Lorenzo Stoakes Cc: Michal Hocko Cc: Mike Rapoport Cc: Shuah Khan Cc: Suren Baghdasaryan Cc: Vlastimil Babka Signed-off-by: Andrew Morton

mm: kmemleak: report leaks only after N consecutive unreferenced scans

2026-08-19T04:51:10+00:00

kmemleak reports an object the first scan it is found unreferenced. Its mark phase runs without stopping the rest of the kernel and without a write barrier, so a live object whose only reference is briefly invisible during a concurrent RCU update -- e.g. a VMA moved between maple tree nodes, or a page-cache xa_node -- can be seen as unreferenced for that one scan. Because an object is flagged as reported only once, such a transient race turns into a permanent false positive. Track how many consecutive scans each object has been seen unreferenced and only report it once that reaches min_unref_scans, a new module parameter. It defaults to 1, leaving the behaviour unchanged; setting it higher (e.g. 2) still reports a genuine leak, one scan later, while an object referenced again before the threshold restarts its run and is never reported. min_unref_scans can be set at boot with kmemleak.min_unref_scans= or at run-time via /sys/module/kmemleak/parameters/min_unref_scans. Link: https://lore.kernel.org/20260713-catalin_pto-v1-2-5b93b1131089@debian.org Signed-off-by: Breno Leitao Reviewed-by: Catalin Marinas Cc: David Hildenbrand Cc: Geert Uytterhoeven Cc: Jonathan Corbet Cc: Liam R. Howlett Cc: Lorenzo Stoakes Cc: Michal Hocko Cc: Mike Rapoport Cc: Shuah Khan Cc: Suren Baghdasaryan Cc: Vlastimil Babka Signed-off-by: Andrew Morton

Documentation: dev-tools: scripts/container prefers Podman

2026-07-15T16:51:27+00:00

Obviously scripts/container prefers Podman over Docker. Putting podman before docker also makes it consistent with following parts of the doc and the help text of the tool. Signed-off-by: Coiby Xu Reviewed-by: Guillaume Tucker Signed-off-by: Jonathan Corbet Message-ID: <20260624013850.1853171-1-coiby.xu@gmail.com>

Documentation: kunit: Fix outdated FAQ entries

2026-07-06T15:31:27+00:00

The KUnit FAQ was written when KUnit in general, and kunit.py in particular, were very heavily focused on UML. While they were updated slightly when qemu support was added, they've not really kept pace with changes to KUnit or the structure of the rest of the documentation. Update them to describe how to run kunit.py with non-UML architectures, and to point to the run_manual.rst page for further detail on how to run KUnit without kunit.py, as it's the authoratative documentation on that subject. Link: https://lore.kernel.org/r/20260627082921.1709181-2-david@davidgow.net Signed-off-by: David Gow Signed-off-by: Shuah Khan

Documentation: kunit: Test Kconfig entries shouldn't select other configs

2026-07-06T15:31:20+00:00

Add a note to the Kconfig section of style.rst to use 'depends on' rather than 'selects' for dependencies, as this can cause users of CONFIG_KUNIT_ALL_TESTS to suddenly grow unexpected dependencies. Link: https://lore.kernel.org/r/20260627082921.1709181-1-david@davidgow.net Signed-off-by: David Gow Signed-off-by: Shuah Khan

Merge tag 'linux_kselftest-next-7.2-rc1-second' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

2026-06-23T14:35:37+00:00

Pull more kselftest updates from Shuah Khan: "Docs: -remove obsolete wiki link from kselftest.rst ftrace: - drop invalid top-level local in test_ownership - Fix trace_marker_raw test on 64K page kernels" * tag 'linux_kselftest-next-7.2-rc1-second' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: docs: kselftest: remove link to obsolete wiki selftests/ftrace: Fix trace_marker_raw test on 64K page kernels selftests/ftrace: Drop invalid top-level local in test_ownership

Merge tag 'mm-nonmm-stable-2026-06-21-10-22' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2026-06-21T20:20:19+00:00

Pull non-MM updates from Andrew Morton: - "taskstats: fix TGID dead-thread stat retention" (Yiyang Chen) Fix a taskstats TGID aggregation bug where fields added in the TGID query path were not preserved after thread exit, and adds a kselftest covering the regression. - "lib/tests: string_helpers: Slight improvements" (Andy Shevchenko) Improve lib/tests/string_helpers_kunit.c a little - "lib/base64: decode fixes" (Josh Law) Address minor issues in lib/base64.c - "selftests/filelock: Make output more kselftestish" (Mark Brown) Make the output from the ofdlocks test a bit easier for tooling to work with. Also ignore the generated file - "uaccess: unify inline vs outline copy_{from,to}_user() selection" (Yury Norov) Simplify the usercopy code by removing the selectability of inlining copy_{from,to}_user(). - "ocfs2: validate inline xattr header consumers" (ZhengYuan Huang) Fix a number of possible issues in the ocfs2 xattr code - "lib and lib/cmdline enhancements" (Dmitry Antipov) Provide additional robustness checking in the cmdline handling code and its in-kernel testing and selftests - "cleanup the RAID6 P/Q library" (Christoph Hellwig) Clean up the RAID6 P/Q library to match the recent updates to the RAID 5 XOR library and other CRC/crypto libraries - "ocfs2: harden inode validators against forged metadata" (Michael Bommarito) Add three structural checks to OCFS2 dinode validation so malformed on-disk fields are rejected before ocfs2_populate_inode() copies them into the in-core inode - "lib/raid: replace __get_free_pages() call with kmalloc()" (Mike Rapoport) Clean up the lib/raid code by using kmalloc() in more places * tag 'mm-nonmm-stable-2026-06-21-10-22' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (108 commits) ocfs2: fix circular locking dependency in ocfs2_dio_end_io_write ocfs2: fix NULL h_transaction deref in ocfs2_assure_trans_credits lib: interval_tree_test: validate benchmark parameters ocfs2: avoid moving extents to occupied clusters treewide: fix transposed "sign" typos and update spelling.txt ocfs2: fix UBSAN array-index-out-of-bounds in ocfs2_sum_rightmost_rec fat: reject BPB volumes whose data area starts beyond total sectors selftests/uevent: increase __UEVENT_BUFFER_SIZE to avoid ENOBUFS on busy systems lib/test_firmware: allocate the configured into_buf size fs: efs: remove unneeded debug prints checkpatch: cuppress warnings when Reported-by: is followed by Link: MAINTAINERS: add Alexander as a kcov reviewer mailmap: update Alexander Sverdlin's Email addresses fs: fat: inode: replace sprintf() with scnprintf() ocfs2: fix out-of-bounds write in ocfs2_remove_refcount_extent ocfs2: fix race between ocfs2_control_install_private() and ocfs2_control_release() ocfs2/dlm: require a ref for locking_state debugfs open ocfs2: reject FITRIM ranges shorter than a cluster ocfs2: validate fast symlink target during inode read ocfs2: add journal NULL check in ocfs2_checkpoint_inode() ...

docs: kselftest: remove link to obsolete wiki

2026-06-18T23:04:49+00:00

Remove the reference to the obsolete kselftest wiki. The kselftest wiki is marked obsolete and is no longer updated. The last edit was in 2019, and the information is outdated, referring readers for support to IRC networks that have not been used for years, and to kernel versions that are no longer supported. If there is any relevant information left in the wiki it needs to be cleaned up and moved into the canonical kselftest documentation here. Link: https://lore.kernel.org/r/20260115172817.7120-1-bacs@librecast.net Signed-off-by: Brett A C Sheffield Acked-by: Bagas Sanjaya Acked-by: SeongJae Park Signed-off-by: Shuah Khan