Changes in kunit_iov_iter.c

37f32d5ab83968d63cfba6092ecaae3e582db964 - Merge tag 'kvm-s390-master-7.1-2' of https://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD

Sat, 23 May 2026 10:03:58 +0200

Merge tag 'kvm-s390-master-7.1-2' of https://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEADKVM: s390: some vSIE and UCONTROL fixesFix some memory issues and some hangs in vSIE. List of files: /linux/lib/tests/kunit_iov_iter.c

c6e99c10fd9855082568cbd71bb2cc5dc90eda53 - Merge tag 'mm-hotfixes-stable-2026-05-18-21-07' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Tue, 19 May 2026 16:49:33 +0200

Merge tag 'mm-hotfixes-stable-2026-05-18-21-07' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mmPull misc fixes from Andrew Morton: "14 hotfixes. 9 are for MM. 10 are cc:stable and the remainder are for post-7.1 issues or aren't deemed suitable for backporting. There's a two-patch MAINTAINERS series from Mike Rapoport which updates us for the new KEXEC/KDUMP/crash/LUO/etc arrangements. And another two-patch series from Muchun Song to fix a couple of memory-hotplug issues. Otherwise singletons, please see the changelogs for details"* tag 'mm-hotfixes-stable-2026-05-18-21-07' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: mm/memory: fix spurious warning when unmapping device-private/exclusive pages mm: fix __vm_normal_page() to handle missing support for pmd_special()/pud_special() drivers/base/memory: fix memory block reference leak in poison accounting mm/memory_hotplug: fix memory block reference leak on remove lib: kunit_iov_iter: fix test fail on powerpc mm/page_alloc: fix initialization of tags of the huge zero folio with init_on_free MAINTAINERS: add kexec@ list to LIVE UPDATE ENTRY MAINTAINERS: add tree for KDUMP and KEXEC selftests/mm: run_vmtests.sh: fix destructive tests invocation scripts/gdb: slab: update field names of struct kmem_cache scripts/gdb: mm: cast untyped symbols in x86_page_ops mm/damon: fix damos_stat tracepoint format for sz_applied mm/damon/sysfs-schemes: call missing mem_cgroup_iter_break() mm/migrate_device: fix spinlock leak in migrate_vma_insert_huge_pmd_page List of files: /linux/lib/tests/kunit_iov_iter.c

efdadbc180e53fe257a6e85f6bc706cb58088653 - lib: kunit_iov_iter: fix test fail on powerpc

Tue, 21 Apr 2026 09:07:07 +0200

lib: kunit_iov_iter: fix test fail on powerpcIncrease buffer size to accommodate machines with 64K PAGE_SIZE.Link: https://lore.kernel.org/20260421070707.992873-1-lk@c--e.deFixes: 0913b7554726 ("lib: kunit_iov_iter: add tests for extract_iter_to_sg")Signed-off-by: Christian A. Ehrhardt Reported-by: David Gow Closes: https://lore.kernel.org/34a81ec2-af84-465d-9b5e-7bb5bf01680f@davidgow.netTested-by: David Gow Tested-by: Josh Law Reviewed-by: Josh Law Signed-off-by: Andrew Morton List of files: /linux/lib/tests/kunit_iov_iter.c

0fc8f6200d2313278fbf4539bbab74677c685531 - Merge drm/drm-fixes into drm-misc-fixes

Mon, 27 Apr 2026 10:26:49 +0200

Merge drm/drm-fixes into drm-misc-fixesGetting fixes and updates from v7.1-rc1.Signed-off-by: Thomas Zimmermann List of files: /linux/lib/tests/kunit_iov_iter.c

f4b369c6fe0ceaba2da2daff8c9eb415f85926dd - Merge branch 'next' into for-linus

Mon, 20 Apr 2026 03:28:57 +0200

Merge branch 'next' into for-linusPrepare input updates for 7.1 merge window. List of files: /linux/lib/tests/kunit_iov_iter.c

0421ccdfad0d92713a812a5aeb7d07b0ea7213c8 - Merge tag 'v7.0-rc3' into next

Thu, 12 Mar 2026 18:44:42 +0100

Merge tag 'v7.0-rc3' into nextSync up with the mainline to brig up the latest changes, specificallychanges to ALPS driver. List of files: /linux/lib/tests/kunit_iov_iter.c

3e9e952bb3139ad1e08f3e1960239c2988ab90c9 - Merge branch 'for-7.1-printf-kunit-build' into for-linus

Mon, 20 Apr 2026 13:41:28 +0200

Merge branch 'for-7.1-printf-kunit-build' into for-linus List of files: /linux/lib/tests/kunit_iov_iter.c

440d6635b20037bc9ad46b20817d7b61cef0fc1b - Merge tag 'mm-nonmm-stable-2026-04-15-04-20' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Fri, 17 Apr 2026 05:11:56 +0200

Merge tag 'mm-nonmm-stable-2026-04-15-04-20' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mmPull non-MM updates from Andrew Morton: - "pid: make sub-init creation retryable" (Oleg Nesterov) Make creation of init in a new namespace more robust by clearing away some historical cruft which is no longer needed. Also some documentation fixups - "selftests/fchmodat2: Error handling and general" (Mark Brown) Fix and a cleanup for the fchmodat2() syscall selftest - "lib: polynomial: Move to math/ and clean up" (Andy Shevchenko) - "hung_task: Provide runtime reset interface for hung task detector" (Aaron Tomlin) Give administrators the ability to zero out /proc/sys/kernel/hung_task_detect_count - "tools/getdelays: use the static UAPI headers from tools/include/uapi" (Thomas Weißschuh) Teach getdelays to use the in-kernel UAPI headers rather than the system-provided ones - "watchdog/hardlockup: Improvements to hardlockup" (Mayank Rungta) Several cleanups and fixups to the hardlockup detector code and its documentation - "lib/bch: fix undefined behavior from signed left-shifts" (Josh Law) A couple of small/theoretical fixes in the bch code - "ocfs2/dlm: fix two bugs in dlm_match_regions()" (Junrui Luo) - "cleanup the RAID5 XOR library" (Christoph Hellwig) A quite far-reaching cleanup to this code. I can't do better than to quote Christoph: "The XOR library used for the RAID5 parity is a bit of a mess right now. The main file sits in crypto/ despite not being cryptography and not using the crypto API, with the generic implementations sitting in include/asm-generic and the arch implementations sitting in an asm/ header in theory. The latter doesn't work for many cases, so architectures often build the code directly into the core kernel, or create another module for the architecture code. Change this to a single module in lib/ that also contains the architecture optimizations, similar to the library work Eric Biggers has done for the CRC and crypto libraries later. After that it changes to better calling conventions that allow for smarter architecture implementations (although none is contained here yet), and uses static_call to avoid indirection function call overhead" - "lib/list_sort: Clean up list_sort() scheduling workarounds" (Kuan-Wei Chiu) Clean up this library code by removing a hacky thing which was added for UBIFS, which UBIFS doesn't actually need - "Fix bugs in extract_iter_to_sg()" (Christian Ehrhardt) Fix a few bugs in the scatterlist code, add in-kernel tests for the now-fixed bugs and fix a leak in the test itself - "kdump: Enable LUKS-encrypted dump target support in ARM64 and PowerPC" (Coiby Xu) Enable support of the LUKS-encrypted device dump target on arm64 and powerpc - "ocfs2: consolidate extent list validation into block read callbacks" (Joseph Qi) Cleanup, simplify, and make more robust ocfs2's validation of extent list fields (Kernel test robot loves mounting corrupted fs images!)* tag 'mm-nonmm-stable-2026-04-15-04-20' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (127 commits) ocfs2: validate group add input before caching ocfs2: validate bg_bits during freefrag scan ocfs2: fix listxattr handling when the buffer is full doc: watchdog: fix typos etc update Sean's email address ocfs2: use get_random_u32() where appropriate ocfs2: split transactions in dio completion to avoid credit exhaustion ocfs2: remove redundant l_next_free_rec check in __ocfs2_find_path() ocfs2: validate extent block list fields during block read ocfs2: remove empty extent list check in ocfs2_dx_dir_lookup_rec() ocfs2: validate dx_root extent list fields during block read ocfs2: fix use-after-free in ocfs2_fault() when VM_FAULT_RETRY ocfs2: handle invalid dinode in ocfs2_group_extend .get_maintainer.ignore: add Askar ocfs2: validate bg_list extent bounds in discontig groups checkpatch: exclude forward declarations of const structs tools/accounting: handle truncated taskstats netlink messages taskstats: set version in TGID exit notifications ocfs2/heartbeat: fix slot mapping rollback leaks on error paths arm64,ppc64le/kdump: pass dm-crypt keys to kdump kernel ... List of files: /linux/lib/tests/kunit_iov_iter.c

d4eb7b2da66c848709e31585b9c371fa234abc39 - Merge branch 'for-7.1/core-v2' into for-linus

Thu, 16 Apr 2026 21:01:18 +0200

Merge branch 'for-7.1/core-v2' into for-linus- fixed handling of 0-sized reports (Dmitry Torokhov)- convert core code to __free() (Dmitry Torokhov)- support for multiple batteries per HID device (Lucas Zampieri) List of files: /linux/lib/tests/kunit_iov_iter.c

0913b7554726aac089cab89b6f0877dafc30b2a0 - lib: kunit_iov_iter: add tests for extract_iter_to_sg

Thu, 26 Mar 2026 22:49:05 +0100

lib: kunit_iov_iter: add tests for extract_iter_to_sgAdd test cases that test extract_iter_to_sg.For each iterator type an iterator is loaded with a suitable buffer. Theiterator is then extracted to a scatterlist with multiple calls toextract_iter_to_sg. The final scatterlist is copied into a scratchbuffer.The test passes if the scratch buffer contains the same data as theoriginal buffer.The new tests demonstrate bugs in extract_iter_to_sg for kvec and useriterators that are fixed by the previous commits.Link: https://lkml.kernel.org/r/20260326214905.818170-6-lk@c--e.deSigned-off-by: Christian A. Ehrhardt Cc: David Howells Cc: David Gow Cc: Kees Cook Cc: Petr Mladek Signed-off-by: Andrew Morton List of files: /linux/lib/tests/kunit_iov_iter.c

7278aa840b69e5a31826329ef893230d67cae811 - lib: kunit_iov_iter: improve error detection

Thu, 26 Mar 2026 22:49:04 +0100

lib: kunit_iov_iter: improve error detectionIn the kunit_iov_iter test prevent the kernel buffer from being a singlephysically contiguous region.Additionally, make sure that the test pattern written to a page in thebuffer depends on the offset of the page within the buffer.Link: https://lkml.kernel.org/r/20260326214905.818170-5-lk@c--e.deSigned-off-by: Christian A. Ehrhardt Cc: David Howells Cc: David Gow Cc: Kees Cook Cc: Petr Mladek Signed-off-by: Andrew Morton List of files: /linux/lib/tests/kunit_iov_iter.c

0b49c7d0ae697fcecd7377cb7dda220f7cd096ff - lib: kunit_iov_iter: fix memory leaks

Thu, 26 Mar 2026 22:49:03 +0100

lib: kunit_iov_iter: fix memory leaksUse vfree() instead of vunmap() to free the buffer allocated byiov_kunit_create_buffer() because vunmap() does not honourVM_MAP_PUT_PAGES. In order for this to work the page array itself mustnot be managed by kunit.Remove the folio_put() when destroying a folioq. This is handled byvfree(), now.Pointed out by sashiko.dev on a previous iteration of this series.Tested by running the kunit test 10000 times in a loop.Link: https://lkml.kernel.org/r/20260326214905.818170-4-lk@c--e.deFixes: 2d71340ff1d4 ("iov_iter: Kunit tests for copying to/from an iterator")Signed-off-by: Christian A. Ehrhardt Cc: David Howells Cc: David Gow Cc: Kees Cook Cc: Petr Mladek Signed-off-by: Andrew Morton List of files: /linux/lib/tests/kunit_iov_iter.c

42d3b66d4cdbacfc9d120d2301b8de89cc29a914 - Merge drm/drm-next into drm-xe-next

Thu, 12 Mar 2026 15:17:56 +0100

Merge drm/drm-next into drm-xe-nextBackmerging to bring in 7.00-rc3. Important ahead GPU SVM merging THPsupport.Signed-off-by: Matthew Brost List of files: /linux/lib/tests/kunit_iov_iter.c

0314e382cf02983eb3c33ac537ad9701e7858bc9 - Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Thu, 26 Feb 2026 19:20:47 +0100

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netCross-merge networking fixes after downstream PR (net-7.0-rc2).Conflicts:tools/testing/selftests/drivers/net/hw/rss_ctx.py 19c3a2a81d2b ("selftests: drv-net: rss: Generate unique ports for RSS context tests") ce5a0f4612db ("selftests: drv-net: rss_ctx: test RSS contexts persist after ifdown/up")include/net/inet_connection_sock.h 858d2a4f67ff6 ("tcp: fix potential race in tcp_v6_syn_recv_sock()") fcd3d039fab69 ("tcp: make tcp_v{4,6}_send_check() static")https://lore.kernel.org/aZ8PSFLzBrEU3I89@sirena.org.ukdrivers/net/ethernet/mellanox/mlx5/core/en/xsk/setup.cdrivers/net/ethernet/mellanox/mlx5/core/en/xsk/pool.c 69050f8d6d075 ("treewide: Replace kmalloc with kmalloc_obj for non-scalar types") bf4afc53b77ae ("Convert 'alloc_obj' family to use the new default GFP_KERNEL argument") 8a96b9144f18a ("net/mlx5e: Alloc xsk channel param out of mlx5e_open_xsk()")Adjacent changes:net/netfilter/ipvs/ip_vs_ctl.c c59bd9e62e06 ("ipvs: use more counters to avoid service lookups") bf4afc53b77a ("Convert 'alloc_obj' family to use the new default GFP_KERNEL argument")Signed-off-by: Jakub Kicinski List of files: /linux/lib/tests/kunit_iov_iter.c

f09812b85fa6f41058bcc46e70ac406bf9b0493a - Merge drm/drm-next into drm-intel-next

Wed, 25 Feb 2026 12:23:04 +0100

Merge drm/drm-next into drm-intel-nextSync with v7.0-rc1 which contains a few treewide changes affecting i915.Signed-off-by: Jani Nikula List of files: /linux/lib/tests/kunit_iov_iter.c

3ecf0b4a0e0ed4783aa32c5f3e42d23c7021e1c8 - Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf after 7.0-rc1

Mon, 23 Feb 2026 17:06:33 +0100

Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf after 7.0-rc1Cross-merge trees after 7.0-rc1.No conflicts.Signed-off-by: Alexei Starovoitov List of files: /linux/lib/tests/kunit_iov_iter.c

8b85987d3cf50178f67618122d9f3bb202f62f42 - Merge drm/drm-next into drm-misc-next

Mon, 23 Feb 2026 11:48:20 +0100

Merge drm/drm-next into drm-misc-nextLet's merge 7.0-rc1 to start the new drm-misc-next windowSigned-off-by: Maxime Ripard List of files: /linux/lib/tests/kunit_iov_iter.c

c17ee635fd3a482b2ad2bf5e269755c2eae5f25e - Merge drm/drm-fixes into drm-misc-fixes

Mon, 23 Feb 2026 10:09:45 +0100

Merge drm/drm-fixes into drm-misc-fixes7.0-rc1 was just released, let's merge it to kick the new release cycle.Signed-off-by: Maxime Ripard List of files: /linux/lib/tests/kunit_iov_iter.c

bf4afc53b77aeaa48b5409da5c8da6bb4eff7f43 - Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

Sun, 22 Feb 2026 01:37:42 +0100

Convert 'alloc_obj' family to use the new default GFP_KERNEL argumentThis was done entirely with mindless brute force, using git grep -l '\ List of files: /linux/lib/tests/kunit_iov_iter.c

8934827db5403eae57d4537114a9ff88b0a8460f - Merge tag 'kmalloc_obj-treewide-v7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Sat, 21 Feb 2026 20:02:58 +0100

Merge tag 'kmalloc_obj-treewide-v7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linuxPull kmalloc_obj conversion from Kees Cook: "This does the tree-wide conversion to kmalloc_obj() and friends using coccinelle, with a subsequent small manual cleanup of whitespace alignment that coccinelle does not handle. This uncovered a clang bug in __builtin_counted_by_ref(), so the conversion is preceded by disabling that for current versions of clang. The imminent clang 22.1 release has the fix. I've done allmodconfig build tests for x86_64, arm64, i386, and arm. I did defconfig builds for alpha, m68k, mips, parisc, powerpc, riscv, s390, sparc, sh, arc, csky, xtensa, hexagon, and openrisc"* tag 'kmalloc_obj-treewide-v7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: kmalloc_obj: Clean up after treewide replacements treewide: Replace kmalloc with kmalloc_obj for non-scalar types compiler_types: Disable __builtin_counted_by_ref for Clang List of files: /linux/lib/tests/kunit_iov_iter.c