s390/tlb: Add missing TLB range adjustment

Alexander Gordeev · Alexander Gordeev · commit 03b3e82a78c3 · 2025-01-09T13:44:48.000+01:00
While converting to generic mmu_gather with commit 9de7d83 ("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
@@ -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 */

Original file line number	Diff line number	Diff line change
`@@ -140,11 +140,11 @@ static inline void pud_free_tlb(struct mmu_gather tlb, pud_t pud,`
`140`	`140`	`{`
`141`	`141`	`if (mm_pud_folded(tlb->mm))`
`142`	`142`	`return;`
	`143`	`+ __tlb_adjust_range(tlb, address, PAGE_SIZE);`
`143`	`144`	`tlb->mm->context.flush_mm = 1;`
`144`	`145`	`tlb->freed_tables = 1;`
`145`	`146`	`tlb->cleared_p4ds = 1;`
`146`	`147`	`tlb_remove_ptdesc(tlb, pud);`
`147`	`148`	`}`
`148`	`149`
`149`		`-`
`150`	`150`	`#endif /* _S390_TLB_H */`