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[06/12] arm64: tlb: Remove redundant !CONFIG_HAVE_RCU_TABLE_FREE code

Message ID 1535645747-9823-7-git-send-email-will.deacon@arm.com
State Accepted
Commit 07212cd47efef1df971e2289a89c087a5f6f6a2b
Headers show
Series Avoid synchronous TLB invalidation for intermediate page-table entries on arm64 | expand

Commit Message

Will Deacon Aug. 30, 2018, 4:15 p.m. UTC 
If there's one thing the RCU-based table freeing doesn't need, it's more
ifdeffery.

Remove the redundant !CONFIG_HAVE_RCU_TABLE_FREE code, since this option
is unconditionally selected in our Kconfig.

Signed-off-by: Will Deacon <will.deacon@arm.com>

---
 arch/arm64/include/asm/tlb.h | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

-- 
2.1.4
diff mbox series

Patch

diff --git a/arch/arm64/include/asm/tlb.h b/arch/arm64/include/asm/tlb.h
index 1e1f68ce28f4..bd00017d529a 100644
--- a/arch/arm64/include/asm/tlb.h
+++ b/arch/arm64/include/asm/tlb.h
@@ -22,16 +22,10 @@ 
 #include <linux/pagemap.h>
 #include <linux/swap.h>
 
-#ifdef CONFIG_HAVE_RCU_TABLE_FREE
-
-#define tlb_remove_entry(tlb, entry)	tlb_remove_table(tlb, entry)
 static inline void __tlb_remove_table(void *_table)
 {
 	free_page_and_swap_cache((struct page *)_table);
 }
-#else
-#define tlb_remove_entry(tlb, entry)	tlb_remove_page(tlb, entry)
-#endif /* CONFIG_HAVE_RCU_TABLE_FREE */
 
 static void tlb_flush(struct mmu_gather *tlb);
 
@@ -61,7 +55,7 @@  static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte,
 {
 	__flush_tlb_pgtable(tlb->mm, addr);
 	pgtable_page_dtor(pte);
-	tlb_remove_entry(tlb, pte);
+	tlb_remove_table(tlb, pte);
 }
 
 #if CONFIG_PGTABLE_LEVELS > 2
@@ -69,7 +63,7 @@  static inline void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmdp,
 				  unsigned long addr)
 {
 	__flush_tlb_pgtable(tlb->mm, addr);
-	tlb_remove_entry(tlb, virt_to_page(pmdp));
+	tlb_remove_table(tlb, virt_to_page(pmdp));
 }
 #endif
 
@@ -78,7 +72,7 @@  static inline void __pud_free_tlb(struct mmu_gather *tlb, pud_t *pudp,
 				  unsigned long addr)
 {
 	__flush_tlb_pgtable(tlb->mm, addr);
-	tlb_remove_entry(tlb, virt_to_page(pudp));
+	tlb_remove_table(tlb, virt_to_page(pudp));
 }
 #endif