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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-04-22 10:10:43 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-04-22 10:10:43 -0700 |
| commit | 281b9d9a4b02229b602a14f7540206b0fbe4134f (patch) | |
| tree | dd5c1aee3a7effe79c1bcc2fd035500d38b6d373 /kernel | |
| parent | 3b8000ae185cb068adbda5f966a3835053c85fd4 (diff) | |
| parent | 319561669a59d8e9206ab311ae5433ef92fd79d1 (diff) | |
Merge branch 'akpm' (patches from Andrew)
Merge misc fixes from Andrew Morton:
"13 patches.
Subsystems affected by this patch series: mm (memory-failure, memcg,
userfaultfd, hugetlbfs, mremap, oom-kill, kasan, hmm), and kcov"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
mm/mmu_notifier.c: fix race in mmu_interval_notifier_remove()
kcov: don't generate a warning on vm_insert_page()'s failure
MAINTAINERS: add Vincenzo Frascino to KASAN reviewers
oom_kill.c: futex: delay the OOM reaper to allow time for proper futex cleanup
selftest/vm: add skip support to mremap_test
selftest/vm: support xfail in mremap_test
selftest/vm: verify remap destination address in mremap_test
selftest/vm: verify mmap addr in mremap_test
mm, hugetlb: allow for "high" userspace addresses
userfaultfd: mark uffd_wp regardless of VM_WRITE flag
memcg: sync flush only if periodic flush is delayed
mm/memory-failure.c: skip huge_zero_page in memory_failure()
mm/hwpoison: fix race between hugetlb free/demotion and memory_failure_hugetlb()
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/kcov.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/kernel/kcov.c b/kernel/kcov.c index 475524bd900a..b3732b210593 100644 --- a/kernel/kcov.c +++ b/kernel/kcov.c @@ -475,8 +475,11 @@ static int kcov_mmap(struct file *filep, struct vm_area_struct *vma) vma->vm_flags |= VM_DONTEXPAND; for (off = 0; off < size; off += PAGE_SIZE) { page = vmalloc_to_page(kcov->area + off); - if (vm_insert_page(vma, vma->vm_start + off, page)) - WARN_ONCE(1, "vm_insert_page() failed"); + res = vm_insert_page(vma, vma->vm_start + off, page); + if (res) { + pr_warn_once("kcov: vm_insert_page() failed\n"); + return res; + } } return 0; exit: |