From: Alexander Gordeev <agordeev@linux.ibm.com>
Date: Tue, 7 Jan 2025 07:40:06 +0000 (+0100)
Subject: s390/tlb: Add missing TLB range adjustment
X-Git-Tag: v6.14-rc1~200^2~11
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=03b3e82a78c32c7e4542c33fcd863028cddd9331;p=thirdparty%2Flinux.git

s390/tlb: Add missing TLB range adjustment

While converting to generic mmu_gather with commit 9de7d833e370
("s390/tlb: Convert to generic mmu_gather") __tlb_adjust_range()
is called from pte|pmd|p4d_free_tlb(), but not for pud_free_tlb().

__tlb_adjust_range() adjusts the span of TLB range to be flushed,
but s390 does not make use of it. Thus, this change is only for
consistency.

Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
---

diff --git a/arch/s390/include/asm/tlb.h b/arch/s390/include/asm/tlb.h
index e95b2c8081eb8..ea150ea83e579 100644
--- a/arch/s390/include/asm/tlb.h
+++ b/arch/s390/include/asm/tlb.h
@@ -140,11 +140,11 @@ static inline void pud_free_tlb(struct mmu_gather *tlb, pud_t *pud,
 {
 	if (mm_pud_folded(tlb->mm))
 		return;
+	__tlb_adjust_range(tlb, address, PAGE_SIZE);
 	tlb->mm->context.flush_mm = 1;
 	tlb->freed_tables = 1;
 	tlb->cleared_p4ds = 1;
 	tlb_remove_ptdesc(tlb, pud);
 }
 
-
 #endif /* _S390_TLB_H */