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| author | Mateusz Guzik <mjguzik@gmail.com> | 2023-08-23 19:05:56 +0200 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-10-04 10:32:20 -0700 |
| commit | bc0c3357601e3ff1b006600530079bd246ef0d82 (patch) | |
| tree | a6381af38e1231285a1fb4c670545ffe23d8f0f6 /kernel | |
| parent | 97144ce008f918249fa7275ee1d29f6f27665c34 (diff) | |
| download | linux-bc0c3357601e3ff1b006600530079bd246ef0d82.tar.gz linux-bc0c3357601e3ff1b006600530079bd246ef0d82.tar.bz2 linux-bc0c3357601e3ff1b006600530079bd246ef0d82.zip | |
mm: remove remnants of SPLIT_RSS_COUNTING
The feature got retired in f1a7941243c1 ("mm: convert mm's rss stats into
percpu_counter"), but the patch failed to fully clean it up.
Link: https://lkml.kernel.org/r/20230823170556.2281747-1-mjguzik@gmail.com
Signed-off-by: Mateusz Guzik <mjguzik@gmail.com>
Acked-by: Shakeel Butt <shakeelb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/exit.c | 4 | ||||
| -rw-r--r-- | kernel/fork.c | 4 | ||||
| -rw-r--r-- | kernel/kthread.c | 1 |
3 files changed, 0 insertions, 9 deletions
diff --git a/kernel/exit.c b/kernel/exit.c index edb50b4c9972..3cdbe797008f 100644 --- a/kernel/exit.c +++ b/kernel/exit.c @@ -539,7 +539,6 @@ static void exit_mm(void) exit_mm_release(current, mm); if (!mm) return; - sync_mm_rss(mm); mmap_read_lock(mm); mmgrab_lazy_tlb(mm); BUG_ON(mm != current->active_mm); @@ -829,9 +828,6 @@ void __noreturn do_exit(long code) io_uring_files_cancel(); exit_signals(tsk); /* sets PF_EXITING */ - /* sync mm's RSS info before statistics gathering */ - if (tsk->mm) - sync_mm_rss(tsk->mm); acct_update_integrals(tsk); group_dead = atomic_dec_and_test(&tsk->signal->live); if (group_dead) { diff --git a/kernel/fork.c b/kernel/fork.c index 3b6d20dfb9a8..1779183a7cb3 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -2406,10 +2406,6 @@ __latent_entropy struct task_struct *copy_process( p->io_uring = NULL; #endif -#if defined(SPLIT_RSS_COUNTING) - memset(&p->rss_stat, 0, sizeof(p->rss_stat)); -#endif - p->default_timer_slack_ns = current->timer_slack_ns; #ifdef CONFIG_PSI diff --git a/kernel/kthread.c b/kernel/kthread.c index 1eea53050bab..c46128ec0c0a 100644 --- a/kernel/kthread.c +++ b/kernel/kthread.c @@ -1469,7 +1469,6 @@ void kthread_unuse_mm(struct mm_struct *mm) * clearing tsk->mm. */ smp_mb__after_spinlock(); - sync_mm_rss(mm); local_irq_disable(); tsk->mm = NULL; membarrier_update_current_mm(NULL); |