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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-03-19 16:15:33 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-03-19 16:15:33 +0100 |
| commit | 7e2dc8ed7862ac622b5a59953b679de97001dc83 (patch) | |
| tree | d2d2cf61a22f5a6404000ee007c5e80bc2d9eca9 /include/trace/events/kmem.h | |
| parent | a7e8c9cc3a13baf3dcf9734dd55609aa7ff9a1a0 (diff) | |
| parent | 4a2b0ed2ac7abe9743e1559d212075a0ebac96b3 (diff) | |
Merge v6.19.9linux-rolling-stable
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/trace/events/kmem.h')
| -rw-r--r-- | include/trace/events/kmem.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/include/trace/events/kmem.h b/include/trace/events/kmem.h index 7f93e754da5c..cd7920c81f85 100644 --- a/include/trace/events/kmem.h +++ b/include/trace/events/kmem.h @@ -440,7 +440,13 @@ TRACE_EVENT(rss_stat, TP_fast_assign( __entry->mm_id = mm_ptr_to_hash(mm); - __entry->curr = !!(current->mm == mm); + /* + * curr is true if the mm matches the current task's mm_struct. + * Since kthreads (PF_KTHREAD) have no mm_struct of their own + * but can borrow one via kthread_use_mm(), we must filter them + * out to avoid incorrectly attributing the RSS update to them. + */ + __entry->curr = current->mm == mm && !(current->flags & PF_KTHREAD); __entry->member = member; __entry->size = (percpu_counter_sum_positive(&mm->rss_stat[member]) << PAGE_SHIFT); |