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authorMaarten Lankhorst <maarten.lankhorst@linux.intel.com>2023-04-12 12:01:32 +0200
committerMaarten Lankhorst <maarten.lankhorst@linux.intel.com>2023-04-12 12:01:32 +0200
commit5603effb8295ada8419408d038a34ca89d658229 (patch)
treeb06d8e309631d507c7b030e943b8479e2d15250b /kernel/fork.c
parentb89ce1177d42d5c124e83f3858818cd4e6a2c46f (diff)
parent09a9639e56c01c7a00d6c0ca63f4c7c41abe075d (diff)
Merge remote-tracking branch 'drm/drm-fixes' into drm-misc-fixes
We were stuck on rc2, should at least attempt to track drm-fixes slightly. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Diffstat (limited to 'kernel/fork.c')
-rw-r--r--kernel/fork.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/kernel/fork.c b/kernel/fork.c
index d8cda4c6de6c..0c92f224c68c 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -617,6 +617,7 @@ static __latent_entropy int dup_mmap(struct mm_struct *mm,
if (retval)
goto out;
+ mt_clear_in_rcu(vmi.mas.tree);
for_each_vma(old_vmi, mpnt) {
struct file *file;
@@ -700,6 +701,8 @@ static __latent_entropy int dup_mmap(struct mm_struct *mm,
retval = arch_dup_mmap(oldmm, mm);
loop_out:
vma_iter_free(&vmi);
+ if (!retval)
+ mt_set_in_rcu(vmi.mas.tree);
out:
mmap_write_unlock(mm);
flush_tlb_mm(oldmm);
@@ -755,11 +758,6 @@ static void check_mm(struct mm_struct *mm)
for (i = 0; i < NR_MM_COUNTERS; i++) {
long x = percpu_counter_sum(&mm->rss_stat[i]);
- if (likely(!x))
- continue;
-
- /* Making sure this is not due to race with CPU offlining. */
- x = percpu_counter_sum_all(&mm->rss_stat[i]);
if (unlikely(x))
pr_alert("BUG: Bad rss-counter state mm:%p type:%s val:%ld\n",
mm, resident_page_types[i], x);