[patch 111/128] mm: remove both instances of __vmalloc_node_flags

[Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>]

From: Christoph Hellwig <hch@xxxxxx>
Subject: mm: remove both instances of __vmalloc_node_flags

The real version just had a few callers that can open code it and remove
one layer of indirection.  The nommu stub was public but only had a single
caller, so remove it and avoid a CONFIG_MMU ifdef in vmalloc.h.

Link: http://lkml.kernel.org/r/20200414131348.444715-24-hch@xxxxxx
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Acked-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Cc: Christian Borntraeger <borntraeger@xxxxxxxxxx>
Cc: Christophe Leroy <christophe.leroy@xxxxxx>
Cc: Daniel Vetter <daniel@xxxxxxxx>
Cc: Daniel Vetter <daniel.vetter@xxxxxxxx>
Cc: David Airlie <airlied@xxxxxxxx>
Cc: Gao Xiang <xiang@xxxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: Haiyang Zhang <haiyangz@xxxxxxxxxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: "K. Y. Srinivasan" <kys@xxxxxxxxxxxxx>
Cc: Laura Abbott <labbott@xxxxxxxxxx>
Cc: Mark Rutland <mark.rutland@xxxxxxx>
Cc: Michael Kelley <mikelley@xxxxxxxxxxxxx>
Cc: Minchan Kim <minchan@xxxxxxxxxx>
Cc: Nitin Gupta <ngupta@xxxxxxxxxx>
Cc: Robin Murphy <robin.murphy@xxxxxxx>
Cc: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
Cc: Stephen Hemminger <sthemmin@xxxxxxxxxxxxx>
Cc: Sumit Semwal <sumit.semwal@xxxxxxxxxx>
Cc: Wei Liu <wei.liu@xxxxxxxxxx>
Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxxx>
Cc: Vasily Gorbik <gor@xxxxxxxxxxxxx>
Cc: Will Deacon <will@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 include/linux/vmalloc.h |    9 ---------
 mm/nommu.c              |    3 ++-
 mm/vmalloc.c            |   20 ++++++--------------
 3 files changed, 8 insertions(+), 24 deletions(-)

--- a/include/linux/vmalloc.h~mm-remove-both-instances-of-__vmalloc_node_flags
+++ a/include/linux/vmalloc.h
@@ -115,17 +115,8 @@ extern void *__vmalloc_node_range(unsign
 			unsigned long start, unsigned long end, gfp_t gfp_mask,
 			pgprot_t prot, unsigned long vm_flags, int node,
 			const void *caller);
-#ifndef CONFIG_MMU
-extern void *__vmalloc_node_flags(unsigned long size, int node, gfp_t flags);
-static inline void *__vmalloc_node_flags_caller(unsigned long size, int node,
-						gfp_t flags, void *caller)
-{
-	return __vmalloc_node_flags(size, node, flags);
-}
-#else
 extern void *__vmalloc_node_flags_caller(unsigned long size,
 					 int node, gfp_t flags, void *caller);
-#endif
 
 extern void vfree(const void *addr);
 extern void vfree_atomic(const void *addr);
--- a/mm/nommu.c~mm-remove-both-instances-of-__vmalloc_node_flags
+++ a/mm/nommu.c
@@ -150,7 +150,8 @@ void *__vmalloc(unsigned long size, gfp_
 }
 EXPORT_SYMBOL(__vmalloc);
 
-void *__vmalloc_node_flags(unsigned long size, int node, gfp_t flags)
+void *__vmalloc_node_flags_caller(unsigned long size, int node, gfp_t flags,
+		void *caller)
 {
 	return __vmalloc(size, flags);
 }
--- a/mm/vmalloc.c~mm-remove-both-instances-of-__vmalloc_node_flags
+++ a/mm/vmalloc.c
@@ -2567,14 +2567,6 @@ void *__vmalloc(unsigned long size, gfp_
 }
 EXPORT_SYMBOL(__vmalloc);
 
-static inline void *__vmalloc_node_flags(unsigned long size,
-					int node, gfp_t flags)
-{
-	return __vmalloc_node(size, 1, flags, node,
-				__builtin_return_address(0));
-}
-
-
 void *__vmalloc_node_flags_caller(unsigned long size, int node, gfp_t flags,
 				  void *caller)
 {
@@ -2595,8 +2587,8 @@ void *__vmalloc_node_flags_caller(unsign
  */
 void *vmalloc(unsigned long size)
 {
-	return __vmalloc_node_flags(size, NUMA_NO_NODE,
-				    GFP_KERNEL);
+	return __vmalloc_node(size, 1, GFP_KERNEL, NUMA_NO_NODE,
+				__builtin_return_address(0));
 }
 EXPORT_SYMBOL(vmalloc);
 
@@ -2615,8 +2607,8 @@ EXPORT_SYMBOL(vmalloc);
  */
 void *vzalloc(unsigned long size)
 {
-	return __vmalloc_node_flags(size, NUMA_NO_NODE,
-				GFP_KERNEL | __GFP_ZERO);
+	return __vmalloc_node(size, 1, GFP_KERNEL | __GFP_ZERO, NUMA_NO_NODE,
+				__builtin_return_address(0));
 }
 EXPORT_SYMBOL(vzalloc);
 
@@ -2671,8 +2663,8 @@ EXPORT_SYMBOL(vmalloc_node);
  */
 void *vzalloc_node(unsigned long size, int node)
 {
-	return __vmalloc_node_flags(size, node,
-			 GFP_KERNEL | __GFP_ZERO);
+	return __vmalloc_node(size, 1, GFP_KERNEL | __GFP_ZERO, node,
+				__builtin_return_address(0));
 }
 EXPORT_SYMBOL(vzalloc_node);
 
_