The patch titled
Subject: kasan-avoid-overflowing-quarantine-size-on-low-memory-systems-fix
has been added to the -mm tree. Its filename is
kasan-avoid-overflowing-quarantine-size-on-low-memory-systems-fix.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/kasan-avoid-overflowing-quarantine-size-on-low-memory-systems-fix.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/kasan-avoid-overflowing-quarantine-size-on-low-memory-systems-fix.patch
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------------------------------------------------------
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Subject: kasan-avoid-overflowing-quarantine-size-on-low-memory-systems-fix
cleanup: use WARN_ONCE return value
Cc: Alexander Potapenko <glider@xxxxxxxxxx>
Cc: Andrey Ryabinin <aryabinin@xxxxxxxxxxxxx>
Cc: Dmitry Vyukov <dvyukov@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/kasan/quarantine.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
diff -puN mm/kasan/quarantine.c~kasan-avoid-overflowing-quarantine-size-on-low-memory-systems-fix mm/kasan/quarantine.c
--- a/mm/kasan/quarantine.c~kasan-avoid-overflowing-quarantine-size-on-low-memory-systems-fix
+++ a/mm/kasan/quarantine.c
@@ -217,14 +217,11 @@ void quarantine_reduce(void)
new_quarantine_size = (READ_ONCE(totalram_pages) << PAGE_SHIFT) /
QUARANTINE_FRACTION;
percpu_quarantines = QUARANTINE_PERCPU_SIZE * num_online_cpus();
- if (new_quarantine_size < percpu_quarantines) {
- WARN_ONCE(1,
- "Too little memory, disabling global KASAN quarantine.\n",
- );
+ if (WARN_ONCE(new_quarantine_size < percpu_quarantines,
+ "Too little memory, disabling global KASAN quarantine.\n"))
new_quarantine_size = 0;
- } else {
+ else
new_quarantine_size -= percpu_quarantines;
- }
WRITE_ONCE(quarantine_size, new_quarantine_size);
last = global_quarantine.head;
_
Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are
arch-alpha-kernel-systblss-remove-debug-check.patch
i-need-old-gcc.patch
kasan-avoid-overflowing-quarantine-size-on-low-memory-systems-fix.patch
arm-arch-arm-include-asm-pageh-needs-personalityh.patch
mm.patch
treewide-replace-obsolete-_refok-by-__ref-checkpatch-fixes.patch
printk-create-pr_level-functions-fix.patch
kexec-ensure-user-memory-sizes-do-not-wrap-fix.patch
kexec-allow-architectures-to-override-boot-mapping-fix.patch
allow-kdump-with-crash_kexec_post_notifiers-fix.patch
kexec-add-restriction-on-kexec_load-segment-sizes-fix.patch
powerpc-fsl_rio-apply-changes-for-rio-spec-rev-3-fix.patch
linux-next-rejects.patch
linux-next-git-rejects.patch
drivers-net-wireless-intel-iwlwifi-dvm-calibc-fix-min-warning.patch
bitmap-bitmap_equal-memcmp-optimization-fix.patch
kernel-forkc-export-kernel_thread-to-modules.patch
slab-leaks3-default-y.patch
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