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2025-07-04selftests: net: extend SCM_PIDFD test to cover stale pidfdsAlexander Mikhalitsyn
Extend SCM_PIDFD test scenarios to also cover dead task's pidfd retrieval and reading its exit info. Cc: linux-kselftest@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: netdev@vger.kernel.org Cc: Shuah Khan <shuah@kernel.org> Cc: David S. Miller <davem@davemloft.net> Cc: Eric Dumazet <edumazet@google.com> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Paolo Abeni <pabeni@redhat.com> Cc: Simon Horman <horms@kernel.org> Cc: Christian Brauner <brauner@kernel.org> Cc: Kuniyuki Iwashima <kuniyu@google.com> Cc: Lennart Poettering <mzxreary@0pointer.de> Cc: Luca Boccassi <bluca@debian.org> Cc: David Rheinsberg <david@readahead.eu> Signed-off-by: Alexander Mikhalitsyn <aleksandr.mikhalitsyn@canonical.com> Link: https://lore.kernel.org/20250703222314.309967-8-aleksandr.mikhalitsyn@canonical.com Reviewed-by: Christian Brauner <brauner@kernel.org> Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-07-03selftests/sched_ext: Fix exit selftest hang on UPAndrea Righi
On single-CPU systems, ops.select_cpu() is never called, causing the EXIT_SELECT_CPU test case to wait indefinitely. Avoid the stall by skipping this specific sub-test when only one CPU is available. Reported-by: Phil Auld <pauld@redhat.com> Fixes: a5db7817af780 ("sched_ext: Add selftests") Signed-off-by: Andrea Righi <arighi@nvidia.com> Reviewed-by: Phil Auld <pauld@redhat.com> Tested-by: Phil Auld <pauld@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2025-07-02Merge tag 'for-linus-iommufd' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd Pull iommufd fixes from Jason Gunthorpe: "Some changes to the userspace selftest framework cause the iommufd tests to start failing. This turned out to be bugs in the iommufd side that were just getting uncovered. - Deal with MAP_HUGETLB mmaping more than requested even when in MAP_FIXED mode - Fixup missing error flow cleanup in the test - Check that the memory allocations suceeded - Suppress some bogus gcc 'may be used uninitialized' warnings" * tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd: iommufd/selftest: Fix build warnings due to uninitialized mfd iommufd/selftest: Add asserts testing global mfd iommufd/selftest: Add missing close(mfd) in memfd_mmap() iommufd/selftest: Fix iommufd_dirty_tracking with large hugepage sizes
2025-07-02selftests/kernfs: test xattr retrievalChristian Brauner
Make sure that listxattr() returns zero and that getxattr() returns ENODATA when no extended attributs are set. Use /sys/kernel/warn_count as that always exists and is a read-only file. Link: https://lore.kernel.org/20250702-hochmoderne-abklatsch-af9c605b57b2@brauner Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-07-02selftests/bpf: Add tests for bpf_cgroup_read_xattrSong Liu
Add tests for different scenarios with bpf_cgroup_read_xattr: 1. Read cgroup xattr from bpf_cgroup_from_id; 2. Read cgroup xattr from bpf_cgroup_ancestor; 3. Read cgroup xattr from css_iter; 4. Use bpf_cgroup_read_xattr in LSM hook security_socket_connect. 5. Use bpf_cgroup_read_xattr in cgroup program. Signed-off-by: Song Liu <song@kernel.org> Link: https://lore.kernel.org/20250623063854.1896364-5-song@kernel.org Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-07-01selftests/bpf: Add negative test cases for snprintfPaul Chaignon
This patch adds a couple negative test cases with a trailing % at the end of the format string. The %p% case was fixed by the previous commit, whereas the %s% case was already successfully rejected before. Acked-by: Yonghong Song <yonghong.song@linux.dev> Signed-off-by: Paul Chaignon <paul.chaignon@gmail.com> Link: https://lore.kernel.org/r/0669bf6eb4f9e5bb10e949d60311c06e2d942447.1751395489.git.paul.chaignon@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-06-27Merge tag 'mm-hotfixes-stable-2025-06-27-16-56' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull misc fixes from Andrew Morton: "16 hotfixes. 6 are cc:stable and the remainder address post-6.15 issues or aren't considered necessary for -stable kernels. 5 are for MM" * tag 'mm-hotfixes-stable-2025-06-27-16-56' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: MAINTAINERS: add Lorenzo as THP co-maintainer mailmap: update Duje Mihanović's email address selftests/mm: fix validate_addr() helper crashdump: add CONFIG_KEYS dependency mailmap: correct name for a historical account of Zijun Hu mailmap: add entries for Zijun Hu fuse: fix runtime warning on truncate_folio_batch_exceptionals() scripts/gdb: fix dentry_name() lookup mm/damon/sysfs-schemes: free old damon_sysfs_scheme_filter->memcg_path on write mm/alloc_tag: fix the kmemleak false positive issue in the allocation of the percpu variable tag->counters lib/group_cpus: fix NULL pointer dereference from group_cpus_evenly() mm/hugetlb: remove unnecessary holding of hugetlb_lock MAINTAINERS: add missing files to mm page alloc section MAINTAINERS: add tree entry to mm init block mm: add OOM killer maintainer structure fs/proc/task_mmu: fix PAGE_IS_PFNZERO detection for the huge zero folio
2025-06-27Merge tag 'block-6.16-20250626' of git://git.kernel.dk/linuxLinus Torvalds
Pull block fixes from Jens Axboe: - Fixes for ublk: - fix C++ narrowing warnings in the uapi header - update/improve UBLK_F_SUPPORT_ZERO_COPY comment in uapi header - fix for the ublk ->queue_rqs() implementation, limiting a batch to just the specific task AND ring - ublk_get_data() error handling fix - sanity check more arguments in ublk_ctrl_add_dev() - selftest addition - NVMe pull request via Christoph: - reset delayed remove_work after reconnect - fix atomic write size validation - Fix for a warning introduced in bdev_count_inflight_rw() in this merge window * tag 'block-6.16-20250626' of git://git.kernel.dk/linux: block: fix false warning in bdev_count_inflight_rw() ublk: sanity check add_dev input for underflow nvme: fix atomic write size validation nvme: refactor the atomic write unit detection nvme: reset delayed remove_work after reconnect ublk: setup ublk_io correctly in case of ublk_get_data() failure ublk: update UBLK_F_SUPPORT_ZERO_COPY comment in UAPI header ublk: fix narrowing warnings in UAPI header selftests: ublk: don't take same backing file for more than one ublk devices ublk: build batch from IOs in same io_ring_ctx and io task
2025-06-26Merge tag 'net-6.16-rc4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Paolo Abeni: "Including fixes from bluetooth and wireless. Current release - regressions: - bridge: fix use-after-free during router port configuration Current release - new code bugs: - eth: wangxun: fix the creation of page_pool Previous releases - regressions: - netpoll: initialize UDP checksum field before checksumming - wifi: mac80211: finish link init before RCU publish - bluetooth: fix use-after-free in vhci_flush() - eth: - ionic: fix DMA mapping test - bnxt: properly flush XDP redirect lists Previous releases - always broken: - netlink: specs: enforce strict naming of properties - unix: don't leave consecutive consumed OOB skbs. - vsock: fix linux/vm_sockets.h userspace compilation errors - selftests: fix TCP packet checksum" * tag 'net-6.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (38 commits) net: libwx: fix the creation of page_pool net: selftests: fix TCP packet checksum atm: Release atm_dev_mutex after removing procfs in atm_dev_deregister(). netlink: specs: enforce strict naming of properties netlink: specs: tc: replace underscores with dashes in names netlink: specs: rt-link: replace underscores with dashes in names netlink: specs: mptcp: replace underscores with dashes in names netlink: specs: ovs_flow: replace underscores with dashes in names netlink: specs: devlink: replace underscores with dashes in names netlink: specs: dpll: replace underscores with dashes in names netlink: specs: ethtool: replace underscores with dashes in names netlink: specs: fou: replace underscores with dashes in names netlink: specs: nfsd: replace underscores with dashes in names net: enetc: Correct endianness handling in _enetc_rd_reg64 atm: idt77252: Add missing `dma_map_error()` bnxt: properly flush XDP redirect lists vsock/uapi: fix linux/vm_sockets.h userspace compilation errors wifi: mac80211: finish link init before RCU publish wifi: iwlwifi: mvm: assume '1' as the default mac_config_cmd version selftest: af_unix: Add tests for -ECONNRESET. ...
2025-06-25Merge tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpfLinus Torvalds
Pull bpf fixes from Alexei Starovoitov: - Fix use-after-free in libbpf when map is resized (Adin Scannell) - Fix verifier assumptions about 2nd argument of bpf_sysctl_get_name (Jerome Marchand) - Fix verifier assumption of nullness of d_inode in dentry (Song Liu) - Fix global starvation of LRU map (Willem de Bruijn) - Fix potential NULL dereference in btf_dump__free (Yuan Chen) * tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf: selftests/bpf: adapt one more case in test_lru_map to the new target_free libbpf: Fix possible use-after-free for externs selftests/bpf: Convert test_sysctl to prog_tests bpf: Specify access type of bpf_sysctl_get_name args libbpf: Fix null pointer dereference in btf_dump__free on allocation failure bpf: Adjust free target to avoid global starvation of LRU map bpf: Mark dentry->d_inode as trusted_or_null
2025-06-25selftests/mm: fix validate_addr() helperDev Jain
validate_addr() checks whether the address returned by mmap() lies in the low or high VA space, according to whether a high addr hint was passed or not. The fix commit mentioned below changed the code in such a way that this function will always return failure when passed high_addr == 1; addr will be >= HIGH_ADDR_MARK always, we will fall down to "if (addr > HIGH_ADDR_MARK)" and return failure. Fix this. Link: https://lkml.kernel.org/r/20250620111150.50344-1-dev.jain@arm.com Fixes: d1d86ce28d0f ("selftests/mm: virtual_address_range: conform to TAP format output") Signed-off-by: Dev Jain <dev.jain@arm.com> Reviewed-by: Donet Tom <donettom@linux.ibm.com> Acked-by: David Hildenbrand <david@redhat.com> Cc: Anshuman Khandual <anshuman.khandual@arm.com> Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Cc: Ryan Roberts <ryan.roberts@arm.com> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-06-25netlink: specs: ethtool: replace underscores with dashes in namesJakub Kicinski
We're trying to add a strict regexp for the name format in the spec. Underscores will not be allowed, dashes should be used instead. This makes no difference to C (codegen replaces special chars in names) but gives more uniform naming in Python. Fixes: 13e59344fb9d ("net: ethtool: add support for symmetric-xor RSS hash") Fixes: 46fb3ba95b93 ("ethtool: Add an interface for flashing transceiver modules' firmware") Reviewed-by: Kory Maincent <kory.maincent@bootlin.com> Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://patch.msgid.link/20250624211002.3475021-4-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-25selftests/bpf: adapt one more case in test_lru_map to the new target_freeWillem de Bruijn
The below commit that updated BPF_MAP_TYPE_LRU_HASH free target, also updated tools/testing/selftests/bpf/test_lru_map to match. But that missed one case that passes with 4 cores, but fails at higher cpu counts. Update test_lru_sanity3 to also adjust its expectation of target_free. This time tested with 1, 4, 16, 64 and 384 cpu count. Fixes: d4adf1c9ee77 ("bpf: Adjust free target to avoid global starvation of LRU map") Signed-off-by: Willem de Bruijn <willemb@google.com> Link: https://lore.kernel.org/r/20250625210412.2732970-1-willemdebruijn.kernel@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-06-25libbpf: Fix possible use-after-free for externsAdin Scannell
The `name` field in `obj->externs` points into the BTF data at initial open time. However, some functions may invalidate this after opening and before loading (e.g. `bpf_map__set_value_size`), which results in pointers into freed memory and undefined behavior. The simplest solution is to simply `strdup` these strings, similar to the `essent_name`, and free them at the same time. In order to test this path, the `global_map_resize` BPF selftest is modified slightly to ensure the presence of an extern, which causes this test to fail prior to the fix. Given there isn't an obvious API or error to test against, I opted to add this to the existing test as an aspect of the resizing feature rather than duplicate the test. Fixes: 9d0a23313b1a ("libbpf: Add capability for resizing datasec maps") Signed-off-by: Adin Scannell <amscanne@meta.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20250625050215.2777374-1-amscanne@meta.com
2025-06-24selftests: ublk: don't take same backing file for more than one ublk devicesMing Lei
Don't use same backing file for more than one ublk devices, and avoid concurrent write on same file from more ublk disks. Fixes: 8ccebc19ee3d ("selftests: ublk: support UBLK_F_AUTO_BUF_REG") Signed-off-by: Ming Lei <ming.lei@redhat.com> Link: https://lore.kernel.org/r/20250623011934.741788-3-ming.lei@redhat.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-06-24KVM: selftests: Add back the missing check of MONITOR/MWAIT availabilityChenyi Qiang
The revamp of monitor/mwait test missed the original check of feature availability [*]. If MONITOR/MWAIT is not supported or is disabled by IA32_MISC_ENABLE on the host, executing MONITOR or MWAIT instruction from guest doesn't cause monitor/mwait VM exits, but a #UD. [*] https://lore.kernel.org/all/20240411210237.34646-1-zide.chen@intel.com/ Reported-by: Xuelian Guo <xuelian.guo@intel.com> Fixes: 80fd663590cf ("selftests: kvm: revamp MONITOR/MWAIT tests") Signed-off-by: Chenyi Qiang <chenyi.qiang@intel.com> Link: https://lore.kernel.org/r/20250620062219.342930-1-chenyi.qiang@intel.com Signed-off-by: Sean Christopherson <seanjc@google.com>
2025-06-24iommufd/selftest: Fix build warnings due to uninitialized mfdNicolin Chen
Commit 869c788909b9 ("selftests: harness: Stop using setjmp()/longjmp()") changed the harness structure. For some unknown reason, two build warnings occur to the iommufd selftest: iommufd.c: In function ‘wrapper_iommufd_mock_domain_all_aligns’: iommufd.c:1807:17: warning: ‘mfd’ may be used uninitialized in this function 1807 | close(mfd); | ^~~~~~~~~~ iommufd.c:1767:13: note: ‘mfd’ was declared here 1767 | int mfd; | ^~~ iommufd.c: In function ‘wrapper_iommufd_mock_domain_all_aligns_copy’: iommufd.c:1870:17: warning: ‘mfd’ may be used uninitialized in this function 1870 | close(mfd); | ^~~~~~~~~~ iommufd.c:1819:13: note: ‘mfd’ was declared here 1819 | int mfd; | ^~~ All the mfd have been used in the variant->file path only, so it's likely a false alarm. FWIW, the commit mentioned above does not cause this, yet it might affect gcc in a certain way that resulted in the warnings. It is also found that ading a dummy setjmp (which doesn't make sense) could mute the warnings: https://lore.kernel.org/all/aEi8DV+ReF3v3Rlf@nvidia.com/ The job of this selftest is to catch kernel bug, while such warnings will unlikely disrupt its role. Mute the warning by force initializing the mfd and add an ASSERT_GT(). Link: https://patch.msgid.link/r/6951d85d5cd34cbf22abab7714542654e63ecc44.1750787928.git.nicolinc@nvidia.com Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: Nicolin Chen <nicolinc@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2025-06-24iommufd/selftest: Add asserts testing global mfdNicolin Chen
The mfd and mfd_buffer will be used in the tests directly without an extra check. Test them in setup_sizes() to ensure they are safe to use. Fixes: 0bcceb1f51c7 ("iommufd: Selftest coverage for IOMMU_IOAS_MAP_FILE") Link: https://patch.msgid.link/r/94bdc11d2b6d5db337b1361c5e5fce0ed494bb40.1750787928.git.nicolinc@nvidia.com Cc: stable@vger.kernel.org Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: Nicolin Chen <nicolinc@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2025-06-24iommufd/selftest: Add missing close(mfd) in memfd_mmap()Nicolin Chen
Do not forget to close mfd in the error paths, since none of the callers would close it when ASSERT_NE(MAP_FAILED, buf) fails. Fixes: 0bcceb1f51c7 ("iommufd: Selftest coverage for IOMMU_IOAS_MAP_FILE") Link: https://patch.msgid.link/r/a363a69dbf453d4bc1bde276f3b16778620488e1.1750787928.git.nicolinc@nvidia.com Cc: stable@vger.kernel.org Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: Nicolin Chen <nicolinc@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2025-06-24iommufd/selftest: Fix iommufd_dirty_tracking with large hugepage sizesNicolin Chen
The hugepage test cases of iommufd_dirty_tracking have the 64MB and 128MB coverages. Both of them are smaller than the default hugepage size 512MB, when CONFIG_PAGE_SIZE_64KB=y. However, these test cases have a variant of using huge pages, which would mmap(MAP_HUGETLB) using these smaller sizes than the system hugepag size. This results in the kernel aligning up the smaller size to 512MB. If a memory was located between the upper 64/128MB size boundary and the hugepage 512MB boundary, it would get wiped out: https://lore.kernel.org/all/aEoUhPYIAizTLADq@nvidia.com/ Given that this aligning up behavior is well documented, we have no choice but to allocate a hugepage aligned size to avoid this unintended wipe out. Instead of relying on the kernel's internal force alignment, pass the same size to posix_memalign() and map(). Also, fix the FIXTURE_TEARDOWN() misusing munmap() to free the memory from posix_memalign(), as munmap() doesn't destroy the allocator meta data. So, call free() instead. Fixes: a9af47e382a4 ("iommufd/selftest: Test IOMMU_HWPT_GET_DIRTY_BITMAP") Link: https://patch.msgid.link/r/1ea8609ae6d523fdd4d8efb179ddee79c8582cb6.1750787928.git.nicolinc@nvidia.com Cc: stable@vger.kernel.org Suggested-by: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: Nicolin Chen <nicolinc@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2025-06-24selftests/pidfd: decode pidfd file handles withou having to specify an fdChristian Brauner
Link: https://lore.kernel.org/20250624-work-pidfs-fhandle-v2-11-d02a04858fe3@kernel.org Reviewed-by: Jan Kara <jack@suse.cz> Reviewed-by: Amir Goldstein <amir73il@gmail.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-06-24fcntl/pidfd: redefine PIDFD_SELF_THREAD_GROUPChristian Brauner
Don't jump somewhere into the middle of the reserved range. We're still able to change that value it won't be that widely used yet. If not, we can revert. Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-06-24selftest: af_unix: Add tests for -ECONNRESET.Kuniyuki Iwashima
A new function resetpair() calls close() for the receiver and checks the return value from recv() on the initial sender side. Now resetpair() is added to each test case and some additional test cases. Note that TCP sets -ECONNRESET to the consumed OOB, but we have decided not to touch TCP MSG_OOB code in the past. Before: # RUN msg_oob.no_peek.ex_oob_ex_oob ... # msg_oob.c:236:ex_oob_ex_oob:AF_UNIX :Connection reset by peer # msg_oob.c:237:ex_oob_ex_oob:Expected: # msg_oob.c:239:ex_oob_ex_oob:Expected ret[0] (-1) == expected_len (0) # ex_oob_ex_oob: Test terminated by assertion # FAIL msg_oob.no_peek.ex_oob_ex_oob not ok 14 msg_oob.no_peek.ex_oob_ex_oob ... # FAILED: 36 / 48 tests passed. # Totals: pass:36 fail:12 xfail:0 xpass:0 skip:0 error:0 After: # RUN msg_oob.no_peek.ex_oob_ex_oob ... # msg_oob.c:244:ex_oob_ex_oob:AF_UNIX : # msg_oob.c:245:ex_oob_ex_oob:TCP :Connection reset by peer # OK msg_oob.no_peek.ex_oob_ex_oob ok 14 msg_oob.no_peek.ex_oob_ex_oob ... # PASSED: 48 / 48 tests passed. # Totals: pass:48 fail:0 xfail:0 xpass:0 skip:0 error:0 Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com> Link: https://patch.msgid.link/20250619041457.1132791-5-kuni1840@gmail.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-06-24af_unix: Add test for consecutive consumed OOB.Kuniyuki Iwashima
Let's add a test case where consecutive concumed OOB skbs stay at the head of the queue. Without the previous patch, ioctl(SIOCATMARK) assertion fails. Before: # RUN msg_oob.no_peek.ex_oob_ex_oob_oob ... # msg_oob.c:305:ex_oob_ex_oob_oob:Expected answ[0] (0) == oob_head (1) # ex_oob_ex_oob_oob: Test terminated by assertion # FAIL msg_oob.no_peek.ex_oob_ex_oob_oob not ok 12 msg_oob.no_peek.ex_oob_ex_oob_oob After: # RUN msg_oob.no_peek.ex_oob_ex_oob_oob ... # OK msg_oob.no_peek.ex_oob_ex_oob_oob ok 12 msg_oob.no_peek.ex_oob_ex_oob_oob Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com> Link: https://patch.msgid.link/20250619041457.1132791-3-kuni1840@gmail.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-06-23selftests/bpf: Convert test_sysctl to prog_testsJerome Marchand
Convert test_sysctl test to prog_tests with minimal change to the tests themselves. Signed-off-by: Jerome Marchand <jmarchan@redhat.com> Acked-by: Yonghong Song <yonghong.song@linux.dev> Link: https://lore.kernel.org/r/20250619140603.148942-3-jmarchan@redhat.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-06-23Merge tag 'mm-hotfixes-stable-2025-06-22-18-52' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull misc fixes from Andrew Morton: "20 hotfixes. 7 are cc:stable and the remainder address post-6.15 issues or aren't considered necessary for -stable kernels. Only 4 are for MM. - The series `Revert "bcache: update min_heap_callbacks to use default builtin swap"' from Kuan-Wei Chiu backs out the author's recent min_heap changes due to a performance regression. A fix for this regression has been developed but we felt it best to go back to the known-good version to give the new code more bake time. - A lot of MAINTAINERS maintenance. I like to get these changes upstreamed promptly because they can't break things and more accurate/complete MAINTAINERS info hopefully improves the speed and accuracy of our responses to submitters and reporters" * tag 'mm-hotfixes-stable-2025-06-22-18-52' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: MAINTAINERS: add additional mmap-related files to mmap section MAINTAINERS: add memfd, shmem quota files to shmem section MAINTAINERS: add stray rmap file to mm rmap section MAINTAINERS: add hugetlb_cgroup.c to hugetlb section MAINTAINERS: add further init files to mm init block MAINTAINERS: update maintainers for HugeTLB maple_tree: fix MA_STATE_PREALLOC flag in mas_preallocate() MAINTAINERS: add missing test files to mm gup section MAINTAINERS: add missing mm/workingset.c file to mm reclaim section selftests/mm: skip uprobe vma merge test if uprobes are not enabled bcache: remove unnecessary select MIN_HEAP Revert "bcache: remove heap-related macros and switch to generic min_heap" Revert "bcache: update min_heap_callbacks to use default builtin swap" selftests/mm: add configs to fix testcase failure kho: initialize tail pages for higher order folios properly MAINTAINERS: add linux-mm@ list to Kexec Handover mm: userfaultfd: fix race of userfaultfd_move and swap cache mm/gup: revert "mm: gup: fix infinite loop within __get_longterm_locked" selftests/mm: increase timeout from 180 to 900 seconds mm/shmem, swap: fix softlockup with mTHP swapin
2025-06-23selftests/coredump: Fix "socket_detect_userspace_client" test failureNam Cao
The coredump.socket_detect_userspace_client test occasionally fails: # RUN coredump.socket_detect_userspace_client ... # stackdump_test.c:500:socket_detect_userspace_client:Expected 0 (0) != WIFEXITED(status) (0) # socket_detect_userspace_client: Test terminated by assertion # FAIL coredump.socket_detect_userspace_client not ok 3 coredump.socket_detect_userspace_client because there is no guarantee that client's write() happens before server's close(). The client gets terminated SIGPIPE, and thus the test fails. Add a read() to server to make sure server's close() doesn't happen before client's write(). Fixes: 7b6724fe9a6b ("selftests/coredump: add tests for AF_UNIX coredumps") Signed-off-by: Nam Cao <namcao@linutronix.de> Link: https://lore.kernel.org/20250620110252.1640391-1-namcao@linutronix.de Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-06-23selftests/pidfd: test setattr supportChristian Brauner
Verify that ->setattr() on a pidfd doens't work. Link: https://lore.kernel.org/20250618-work-pidfs-persistent-v2-15-98f3456fd552@kernel.org Reviewed-by: Alexander Mikhalitsyn <aleksandr.mikhalitsyn@canonical.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-06-23selftests/pidfd: test extended attribute supportChristian Brauner
Test that extended attributes are permanent. Link: https://lore.kernel.org/20250618-work-pidfs-persistent-v2-14-98f3456fd552@kernel.org Reviewed-by: Alexander Mikhalitsyn <aleksandr.mikhalitsyn@canonical.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-06-23selftests/pidfd: test extended attribute supportChristian Brauner
Add tests for extended attribute support on pidfds. Link: https://lore.kernel.org/20250618-work-pidfs-persistent-v2-13-98f3456fd552@kernel.org Reviewed-by: Alexander Mikhalitsyn <aleksandr.mikhalitsyn@canonical.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-06-22Merge tag 'locking_urgent_for_v6.16_rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull locking fixes from Borislav Petkov: - Make sure the switch to the global hash is requested always under a lock so that two threads requesting that simultaneously cannot get to inconsistent state - Reject negative NUMA nodes earlier in the futex NUMA interface handling code - Selftests fixes * tag 'locking_urgent_for_v6.16_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: futex: Verify under the lock if hash can be replaced futex: Handle invalid node numbers supplied by user selftests/futex: Set the home_node in futex_numa_mpol selftests/futex: getopt() requires int as return value.
2025-06-22Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull kvm fixes from Paolo Bonzini: "ARM: - Fix another set of FP/SIMD/SVE bugs affecting NV, and plugging some missing synchronisation - A small fix for the irqbypass hook fixes, tightening the check and ensuring that we only deal with MSI for both the old and the new route entry - Rework the way the shadow LRs are addressed in a nesting configuration, plugging an embarrassing bug as well as simplifying the whole process - Add yet another fix for the dreaded arch_timer_edge_cases selftest RISC-V: - Fix the size parameter check in SBI SFENCE calls - Don't treat SBI HFENCE calls as NOPs x86 TDX: - Complete API for handling complex TDVMCALLs in userspace. This was delayed because the spec lacked a way for userspace to deny supporting these calls; the new exit code is now approved" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: TDX: Exit to userspace for GetTdVmCallInfo KVM: TDX: Handle TDG.VP.VMCALL<GetQuote> KVM: TDX: Add new TDVMCALL status code for unsupported subfuncs KVM: arm64: VHE: Centralize ISBs when returning to host KVM: arm64: Remove cpacr_clear_set() KVM: arm64: Remove ad-hoc CPTR manipulation from kvm_hyp_handle_fpsimd() KVM: arm64: Remove ad-hoc CPTR manipulation from fpsimd_sve_sync() KVM: arm64: Reorganise CPTR trap manipulation KVM: arm64: VHE: Synchronize CPTR trap deactivation KVM: arm64: VHE: Synchronize restore of host debug registers KVM: arm64: selftests: Close the GIC FD in arch_timer_edge_cases KVM: arm64: Explicitly treat routing entry type changes as changes KVM: arm64: nv: Fix tracking of shadow list registers RISC-V: KVM: Don't treat SBI HFENCE calls as NOPs RISC-V: KVM: Fix the size parameter check in SBI SFENCE calls
2025-06-19selftests/mm: skip uprobe vma merge test if uprobes are not enabledPedro Falcato
If uprobes are not enabled, the test currently fails with: 7151 12:46:54.627936 # # # RUN merge.handle_uprobe_upon_merged_vma ... 7152 12:46:54.639014 # # f /sys/bus/event_source/devices/uprobe/type 7153 12:46:54.639306 # # fopen: No such file or directory 7154 12:46:54.650451 # # # merge.c:473:handle_uprobe_upon_merged_vma:Expected read_sysfs("/sys/bus/event_source/devices/uprobe/type", &type) (1) == 0 (0) 7155 12:46:54.650730 # # # handle_uprobe_upon_merged_vma: Test terminated by assertion 7156 12:46:54.661750 # # # FAIL merge.handle_uprobe_upon_merged_vma 7157 12:46:54.662030 # # not ok 8 merge.handle_uprobe_upon_merged_vma Skipping is a more sane and friendly behavior here. Link: https://lkml.kernel.org/r/20250610122209.3177587-1-pfalcato@suse.de Fixes: efe99fabeb11 ("selftests/mm: add test about uprobe pte be orphan during vma merge") Signed-off-by: Pedro Falcato <pfalcato@suse.de> Reported-by: Aishwarya <aishwarya.tcv@arm.com> Closes: https://lore.kernel.org/linux-mm/20250610103729.72440-1-aishwarya.tcv@arm.com/ Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Tested-by : Donet Tom <donettom@linux.ibm.com> Reviewed-by : Donet Tom <donettom@linux.ibm.com> Reviewed-by: Dev Jain <dev.jain@arm.com> Reviewed-by: Pu Lehui <pulehui@huawei.com> Cc: Jann Horn <jannh@google.com> Cc: Liam Howlett <liam.howlett@oracle.com> Cc: Mark Brown <broonie@kernel.org> Cc: Shuah Khan <shuah@kernel.org> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-06-19selftests/mm: add configs to fix testcase failureDev Jain
If CONFIG_UPROBES is not set, a merge subtest fails: Failure log: 7151 12:46:54.627936 # # # RUN merge.handle_uprobe_upon_merged_vma ... 7152 12:46:54.639014 # # f /sys/bus/event_source/devices/uprobe/type 7153 12:46:54.639306 # # fopen: No such file or directory 7154 12:46:54.650451 # # # merge.c:473:handle_uprobe_upon_merged_vma:Expected read_sysfs("/sys/bus/event_source/devices/uprobe/type", &type) (1) == 0 (0) 7155 12:46:54.650730 # # # handle_uprobe_upon_merged_vma: Test terminated by assertion 7156 12:46:54.661750 # # # FAIL merge.handle_uprobe_upon_merged_vma 7157 12:46:54.662030 # # not ok 8 merge.handle_uprobe_upon_merged_vma CONFIG_UPROBES is enabled by CONFIG_UPROBE_EVENTS, which gets enabled by CONFIG_FTRACE. Therefore add these configs to selftests/mm/config so that CI systems can include this config in the kernel build. To be completely safe, add CONFIG_PROFILING too, to enable the dependency chain PROFILING -> PERF_EVENTS -> UPROBE_EVENTS -> UPROBES. Link: https://lkml.kernel.org/r/20250613034912.53791-1-dev.jain@arm.com Fixes: efe99fabeb11 ("selftests/mm: add test about uprobe pte be orphan during vma merge") Signed-off-by: Dev Jain <dev.jain@arm.com> Reported-by: Aishwarya <aishwarya.tcv@arm.com> Closes: https://lore.kernel.org/all/20250610103729.72440-1-aishwarya.tcv@arm.com/ Tested-by: Aishwarya TCV <aishwarya.tcv@arm.com> Tested-by : Donet Tom <donettom@linux.ibm.com> Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com> Reviewed-by: Mark Brown <broonie@kernel.org> Reviewed-by: Donet Tom <donettom@linux.ibm.com> Reviewed-by: Pedro Falcato <pfalcato@suse.de> Cc: Jann Horn <jannh@google.com> Cc: Liam Howlett <liam.howlett@oracle.com> Cc: Pu Lehui <pulehui@huawei.com> Cc: Ryan Roberts <ryan.roberts@arm.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-06-19selftests/mm: increase timeout from 180 to 900 secondsShivank Garg
The mm selftests are timing out with the current 180-second limit. Testing shows that run_vmtests.sh takes approximately 11 minutes (664 seconds) to complete. Increase the timeout to 900 seconds (15 minutes) to provide sufficient buffer for the tests to complete successfully. Link: https://lkml.kernel.org/r/20250609120606.73145-2-shivankg@amd.com Signed-off-by: Shivank Garg <shivankg@amd.com> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-06-19Merge tag 'net-6.16-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Jakub Kicinski: "Including fixes from wireless. The ath12k fix to avoid FW crashes requires adding support for a number of new FW commands so it's quite large in terms of LoC. The rest is relatively small. Current release - fix to a fix: - ptp: fix breakage after ptp_vclock_in_use() rework Current release - regressions: - openvswitch: allocate struct ovs_pcpu_storage dynamically, static allocation may exhaust module loader limit on smaller systems Previous releases - regressions: - tcp: fix tcp_packet_delayed() for peers with no selective ACK support Previous releases - always broken: - wifi: ath12k: don't activate more links than firmware supports - tcp: make sure sockets open via passive TFO have valid NAPI ID - eth: bnxt_en: update MRU and RSS table of RSS contexts on queue reset, prevent Rx queues from silently hanging after queue reset - NFC: uart: set tty->disc_data only in success path" * tag 'net-6.16-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (59 commits) net: airoha: Differentiate hwfd buffer size for QDMA0 and QDMA1 net: airoha: Compute number of descriptors according to reserved memory size tools: ynl: fix mixing ops and notifications on one socket net: atm: fix /proc/net/atm/lec handling net: atm: add lec_mutex mlxbf_gige: return EPROBE_DEFER if PHY IRQ is not available net: airoha: Always check return value from airoha_ppe_foe_get_entry() NFC: nci: uart: Set tty->disc_data only in success path calipso: Fix null-ptr-deref in calipso_req_{set,del}attr(). MAINTAINERS: Remove Shannon Nelson from MAINTAINERS file net: lan743x: fix potential out-of-bounds write in lan743x_ptp_io_event_clock_get() eth: fbnic: avoid double free when failing to DMA-map FW msg tcp: fix passive TFO socket having invalid NAPI ID selftests: net: add test for passive TFO socket NAPI ID selftests: net: add passive TFO test binary selftests: netdevsim: improve lib.sh include in peer.sh tipc: fix null-ptr-deref when acquiring remote ip of ethernet bearer Octeontx2-pf: Fix Backpresure configuration net: ftgmac100: select FIXED_PHY net: ethtool: remove duplicate defines for family info ...
2025-06-19selftests/landlock: Add test to check rule tied to covered mount pointMickaël Salaün
This test checks that a rule on a directory used as a mount point does not grant access to the mount covering it. It is a generalization of the bind mount case in layout3_fs.hostfs.release_inodes [1] that tests hidden mount points. Cc: Günther Noack <gnoack@google.com> Cc: Song Liu <song@kernel.org> Cc: Tingmao Wang <m@maowtm.org> Link: https://lore.kernel.org/r/20250606.zo5aekae6Da6@digikod.net [1] Link: https://lore.kernel.org/r/20250606110811.211297-1-mic@digikod.net Signed-off-by: Mickaël Salaün <mic@digikod.net>
2025-06-19selftests/landlock: Fix build of audit_testSong Liu
We are hitting build error on CentOS 9: audit_test.c:232:40: error: ‘O_CLOEXEC’ undeclared (...) Fix this by including fcntl.h. Signed-off-by: Song Liu <song@kernel.org> Link: https://lore.kernel.org/r/20250605214416.1885878-1-song@kernel.org Fixes: 6b4566400a29 ("selftests/landlock: Add PID tests for audit records") Signed-off-by: Mickaël Salaün <mic@digikod.net>
2025-06-19selftests/landlock: Fix readlink checkMickaël Salaün
The audit_init_filter_exe() helper incorrectly checks the readlink(2) error because an unsigned integer is used to store the result. Use a signed integer for this check. Reported-by: Dan Carpenter <dan.carpenter@linaro.org> Closes: https://lore.kernel.org/r/aDbFwyZ_fM-IO7sC@stanley.mountain Fixes: 6a500b22971c ("selftests/landlock: Add tests for audit flags and domain IDs") Reviewed-by: Günther Noack <gnoack@google.com> Link: https://lore.kernel.org/r/20250528144426.1709063-1-mic@digikod.net Signed-off-by: Mickaël Salaün <mic@digikod.net>
2025-06-19KVM: arm64: selftests: Close the GIC FD in arch_timer_edge_casesZenghui Yu
Close the GIC FD to free the reference it holds to the VM so that we can correctly clean up the VM. This also gets rid of the "KVM: debugfs: duplicate directory 395722-4" warning when running arch_timer_edge_cases. Signed-off-by: Zenghui Yu <yuzenghui@huawei.com> Reviewed-by: Miguel Luis <miguel.luis@oracle.com> Reviewed-by: Sebastian Ott <sebott@redhat.com> Link: https://lore.kernel.org/r/20250608095402.1131-1-yuzenghui@huawei.com Signed-off-by: Marc Zyngier <maz@kernel.org>
2025-06-18bpf: Adjust free target to avoid global starvation of LRU mapWillem de Bruijn
BPF_MAP_TYPE_LRU_HASH can recycle most recent elements well before the map is full, due to percpu reservations and force shrink before neighbor stealing. Once a CPU is unable to borrow from the global map, it will once steal one elem from a neighbor and after that each time flush this one element to the global list and immediately recycle it. Batch value LOCAL_FREE_TARGET (128) will exhaust a 10K element map with 79 CPUs. CPU 79 will observe this behavior even while its neighbors hold 78 * 127 + 1 * 15 == 9921 free elements (99%). CPUs need not be active concurrently. The issue can appear with affinity migration, e.g., irqbalance. Each CPU can reserve and then hold onto its 128 elements indefinitely. Avoid global list exhaustion by limiting aggregate percpu caches to half of map size, by adjusting LOCAL_FREE_TARGET based on cpu count. This change has no effect on sufficiently large tables. Similar to LOCAL_NR_SCANS and lru->nr_scans, introduce a map variable lru->free_target. The extra field fits in a hole in struct bpf_lru. The cacheline is already warm where read in the hot path. The field is only accessed with the lru lock held. Tested-by: Anton Protopopov <a.s.protopopov@gmail.com> Signed-off-by: Willem de Bruijn <willemb@google.com> Acked-by: Stanislav Fomichev <sdf@fomichev.me> Link: https://lore.kernel.org/r/20250618215803.3587312-1-willemdebruijn.kernel@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-06-18selftests: net: add test for passive TFO socket NAPI IDDavid Wei
Add a test that checks that the NAPI ID of a passive TFO socket is valid i.e. not zero. Signed-off-by: David Wei <dw@davidwei.uk> Link: https://patch.msgid.link/20250617212102.175711-4-dw@davidwei.uk Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-18selftests: net: add passive TFO test binaryDavid Wei
Add a simple passive TFO server and client test binary. This will be used to test the SO_INCOMING_NAPI_ID of passive TFO accepted sockets. Signed-off-by: David Wei <dw@davidwei.uk> Link: https://patch.msgid.link/20250617212102.175711-3-dw@davidwei.uk Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-18selftests: netdevsim: improve lib.sh include in peer.shDavid Wei
Fix the peer.sh test to run from INSTALL_PATH. Signed-off-by: David Wei <dw@davidwei.uk> Link: https://patch.msgid.link/20250617212102.175711-2-dw@davidwei.uk Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-17bpf: Mark dentry->d_inode as trusted_or_nullSong Liu
LSM hooks such as security_path_mknod() and security_inode_rename() have access to newly allocated negative dentry, which has NULL d_inode. Therefore, it is necessary to do the NULL pointer check for d_inode. Also add selftests that checks the verifier enforces the NULL pointer check. Signed-off-by: Song Liu <song@kernel.org> Reviewed-by: Matt Bobrowski <mattbobrowski@google.com> Link: https://lore.kernel.org/r/20250613052857.1992233-1-song@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-06-17fs: consistently use can_mmap_file() helperLorenzo Stoakes
Since commit c84bf6dd2b83 ("mm: introduce new .mmap_prepare() file callback"), the f_op->mmap() hook has been deprecated in favour of f_op->mmap_prepare(). Additionally, commit bb666b7c2707 ("mm: add mmap_prepare() compatibility layer for nested file systems") permits the use of the .mmap_prepare() hook even in nested filesystems like overlayfs. There are a number of places where we check only for f_op->mmap - this is incorrect now mmap_prepare exists, so update all of these to use the general helper can_mmap_file(). Most notably, this updates the elf logic to allow for the ability to execute binaries on filesystems which have the .mmap_prepare hook, but additionally we update nested filesystems. Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Link: https://lore.kernel.org/b68145b609532e62bab603dd9686faa6562046ec.1750099179.git.lorenzo.stoakes@oracle.com Acked-by: Kees Cook <kees@kernel.org> Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-06-17mm: rename call_mmap/mmap_prepare to vfs_mmap/mmap_prepareLorenzo Stoakes
The call_mmap() function violates the existing convention in include/linux/fs.h whereby invocations of virtual file system hooks is performed by functions prefixed with vfs_xxx(). Correct this by renaming call_mmap() to vfs_mmap(). This also avoids confusion as to the fact that f_op->mmap_prepare may be invoked here. Also rename __call_mmap_prepare() function to vfs_mmap_prepare() and adjust to accept a file parameter, this is useful later for nested file systems. Finally, fix up the VMA userland tests and ensure the mmap_prepare -> mmap shim is implemented there. Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Link: https://lore.kernel.org/8d389f4994fa736aa8f9172bef8533c10a9e9011.1750099179.git.lorenzo.stoakes@oracle.com Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-06-16Merge tag 'x86_urgent_for_6.16-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Dave Hansen: "This is a pretty scattered set of fixes. The majority of them are further fixups around the recent ITS mitigations. The rest don't really have a coherent story: - Some flavors of Xen PV guests don't support large pages, but the set_memory.c code assumes all CPUs support them. Avoid problems with a quick CPU feature check. - The TDX code has some wrappers to help retry calls to the TDX module. They use function pointers to assembly functions and the compiler usually generates direct CALLs. But some new compilers, plus -Os turned them in to indirect CALLs and the assembly code was not annotated for indirect calls. Force inlining of the helper to fix it up. - Last, a FRED issue showed up when single-stepping. It's fine when using an external debugger, but was getting stuck returning from a SIGTRAP handler otherwise. Clear the FRED 'swevent' bit to ensure that forward progress is made" * tag 'x86_urgent_for_6.16-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: Revert "mm/execmem: Unify early execmem_cache behaviour" x86/its: explicitly manage permissions for ITS pages x86/its: move its_pages array to struct mod_arch_specific x86/Kconfig: only enable ROX cache in execmem when STRICT_MODULE_RWX is set x86/mm/pat: don't collapse pages without PSE set x86/virt/tdx: Avoid indirect calls to TDX assembly functions selftests/x86: Add a test to detect infinite SIGTRAP handler loop x86/fred/signal: Prevent immediate repeat of single step trap on return from SIGTRAP handler
2025-06-16selftests/coredump: make sure invalid paths are rejectedChristian Brauner
Link: https://lore.kernel.org/20250612-work-coredump-massage-v1-8-315c0c34ba94@kernel.org Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-06-14Merge tag 'mm-hotfixes-stable-2025-06-13-21-56' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull misc fixes from Andrew Morton: "9 hotfixes. 3 are cc:stable and the remainder address post-6.15 issues or aren't considered necessary for -stable kernels. Only 4 are for MM" * tag 'mm-hotfixes-stable-2025-06-13-21-56' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: mm: add mmap_prepare() compatibility layer for nested file systems init: fix build warnings about export.h MAINTAINERS: add Barry as a THP reviewer drivers/rapidio/rio_cm.c: prevent possible heap overwrite mm: close theoretical race where stale TLB entries could linger mm/vma: reset VMA iterator on commit_merge() OOM failure docs: proc: update VmFlags documentation in smaps scatterlist: fix extraneous '@'-sign kernel-doc notation selftests/mm: skip failed memfd setups in gup_longterm
generated by cgit (git 2.34.1) at 2025-07-29 09:05:20 +0000