[PATCH 17/29] mm: remove unmap_vmap_area

From: Christoph Hellwig
Date: Tue Apr 14 2020 - 09:16:29 EST


This function just has a single caller, open code it there.

Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Acked-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
---
mm/vmalloc.c | 10 +---------
1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index b0c7cdc8701a..258220b203f1 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -1247,14 +1247,6 @@ int unregister_vmap_purge_notifier(struct notifier_block *nb)
}
EXPORT_SYMBOL_GPL(unregister_vmap_purge_notifier);

-/*
- * Clear the pagetable entries of a given vmap_area
- */
-static void unmap_vmap_area(struct vmap_area *va)
-{
- unmap_kernel_range_noflush(va->va_start, va->va_end - va->va_start);
-}
-
/*
* lazy_max_pages is the maximum amount of virtual address space we gather up
* before attempting to purge with a TLB flush.
@@ -1416,7 +1408,7 @@ static void free_vmap_area_noflush(struct vmap_area *va)
static void free_unmap_vmap_area(struct vmap_area *va)
{
flush_cache_vunmap(va->va_start, va->va_end);
- unmap_vmap_area(va);
+ unmap_kernel_range_noflush(va->va_start, va->va_end - va->va_start);
if (debug_pagealloc_enabled_static())
flush_tlb_kernel_range(va->va_start, va->va_end);

--
2.25.1