The patch titled Subject: mm-prevent-gup_fast-from-racing-with-cow-during-fork-checkpatch-fixes has been added to the -mm tree. Its filename is mm-prevent-gup_fast-from-racing-with-cow-during-fork-checkpatch-fixes.patch This patch should soon appear at https://ozlabs.org/~akpm/mmots/broken-out/mm-prevent-gup_fast-from-racing-with-cow-during-fork-checkpatch-fixes.patch and later at https://ozlabs.org/~akpm/mmotm/broken-out/mm-prevent-gup_fast-from-racing-with-cow-during-fork-checkpatch-fixes.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Subject: mm-prevent-gup_fast-from-racing-with-cow-during-fork-checkpatch-fixes WARNING: Unknown commit id '70e806e4e645', maybe rebased or not pulled? #4: Since commit 70e806e4e645 ("mm: Do early cow for pinned pages during WARNING: Unknown commit id 'f3c64eda3e50', maybe rebased or not pulled? #34: problems (and was missing a barrrier), see commit f3c64eda3e50 ("mm: avoid WARNING: Unknown commit id 'f3c64eda3e50', maybe rebased or not pulled? #46: Fixes: f3c64eda3e50 ("mm: avoid early COW write protect games during fork()") WARNING: Prefer 'unsigned int' to bare use of 'unsigned' #136: FILE: mm/gup.c:2687: + unsigned seq; WARNING: Block comments should align the * on each line #191: FILE: mm/memory.c:1180: + * lockdep complaining about preemptibility. + */ total: 0 errors, 5 warnings, 109 lines checked NOTE: For some of the reported defects, checkpatch may be able to mechanically convert to the typical style using --fix or --fix-inplace. ./patches/mm-prevent-gup_fast-from-racing-with-cow-during-fork.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Jason Gunthorpe <jgg@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/memory.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/mm/memory.c~mm-prevent-gup_fast-from-racing-with-cow-during-fork-checkpatch-fixes +++ a/mm/memory.c @@ -1177,7 +1177,7 @@ copy_page_range(struct vm_area_struct *d * * Use the raw variant of the seqcount_t write API to avoid * lockdep complaining about preemptibility. - */ + */ mmap_assert_write_locked(src_mm); raw_write_seqcount_begin(&src_mm->write_protect_seq); } _ Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are kthread_worker-document-cpu-hotplug-handling-fix.patch mm.patch mm-prevent-gup_fast-from-racing-with-cow-during-fork-checkpatch-fixes.patch mm-swap_state-skip-meaningless-swap-cache-readahead-when-ra_infowin-==-0-fix.patch mm-vmallocc-__vmalloc_area_node-avoid-32-bit-overflow.patch mm-vmstat-fix-proc-sys-vm-stat_refresh-generating-false-warnings-fix-2.patch lib-test_bitmapc-add-for_each_set_clump-test-cases-checkpatch-fixes.patch linux-next-rejects.patch kasan-split-out-shadowc-from-commonc-fix.patch kasan-mm-check-kasan_enabled-in-annotations-fix.patch kernel-forkc-export-kernel_thread-to-modules.patch