hint from the scheduler that we are entering a
- * kernel thread or other context without an mm.  Acceptable implementations
- * include doing nothing whatsoever, switching to init_mm, or various clever
- * lazy tricks to try to minimize TLB flushes.
- *
- * The scheduler reserves the right to call enter_lazy_tlb() several times
- * in a row.  It will notify us that we're going back to a real mm by
- * calling switch_mm_irqs_off().
- */
-void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
-{
-	if (this_cpu_read(cpu_tlbstate.loaded_mm) == &init_mm)
-		return;
-
-	this_cpu_write(cpu_tlbstate_shared.is_lazy, true);
-}
-
 /*
  * Using a temporary mm allows to set temporary mappings that are not accessible
  * by other CPUs. Such mappings are needed to perform sensitive memory writes
  * that override the kernel memory protections (e.g., W^X), without exposing the
  * temporary page-table mappings that are required for these write operations to
  * other CPUs. Using a temporary mm also allows to avoid TLB shootdowns when the
  * mapping is torn down.  Temporary mms can also be used for EFI runtime service
  * calls or similar functionality.
  *
  * It is illegal to schedule while using a temporary mm -- the context switch
-- 
2.51.0[PATCH 1/3] Change enter_lazy_tlb to inline on x86Xie Yuanbin <qq570070308@gmail.com> undefinedlinux@armlinux.org.uk, mathieu.desnoyers@efficios.com, paulmck@kernel.org, pjw@kernel.org, palmer@dabbelt.com, aou@eecs.berkeley.edu, alex@ghiti.fr, hca@linux.ibm.com, gor@linux.ibm.com, agordeev@linux.ibm.com, borntraeger@linux.ibm.com, svens@linux.ibm.com, davem@davemloft.net, andreas@gaisler.com, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, hpa@zytor.com, luto@kernel.org, peterz@infradead.org, acme@kernel.org, namhyung@kernel.org, mark.rutland@arm.com, alexander.shishkin@linux.intel.com, jolsa@kernel.org, irogers@google.com, adrian.hunter@intel.com, anna-maria@linutronix.de, frederic@kernel.org, juri.lelli@redhat.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de, vschneid@redhat.com, qq570070308@gmail.com, thuth@redhat.com, riel@surriel.com, akpm@linux-foundation.org, david@redhat.com, lorenzo.stoakes@oracle.com, segher@kernel.crashing.org, ryan.roberts@arm.com, max.kellermann@ionos.com, urezki@gmail.com, nysal@linux.ibm.com undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined¦?ƒÄY