[PATCH] mm: add @gfp_mask parameter to vm_map_ram()

[Fengguang Wu]

XFS needs GFP_NOFS allocation.

Signed-off-by: Fengguang Wu <fengguang.wu@xxxxxxxxx>
---
 drivers/firewire/ohci.c                 |    2 +-
 drivers/media/video/videobuf2-dma-sg.c  |    1 +
 drivers/media/video/videobuf2-vmalloc.c |    2 +-
 fs/xfs/xfs_buf.c                        |    2 +-
 include/linux/vmalloc.h                 |    2 +-
 mm/nommu.c                              |    3 ++-
 mm/vmalloc.c                            |    7 ++++---
 7 files changed, 11 insertions(+), 8 deletions(-)

diff --git a/drivers/firewire/ohci.c b/drivers/firewire/ohci.c
index c1af05e..b53f5a9 100644
--- a/drivers/firewire/ohci.c
+++ b/drivers/firewire/ohci.c
@@ -1000,7 +1000,7 @@ static int ar_context_init(struct ar_context *ctx, struct fw_ohci *ohci,
 	for (i = 0; i < AR_WRAPAROUND_PAGES; i++)
 		pages[AR_BUFFERS + i] = ctx->pages[i];
 	ctx->buffer = vm_map_ram(pages, AR_BUFFERS + AR_WRAPAROUND_PAGES,
-				 -1, PAGE_KERNEL);
+				 -1, GFP_KERNEL, PAGE_KERNEL);
 	if (!ctx->buffer)
 		goto out_of_memory;
 
diff --git a/drivers/media/video/videobuf2-dma-sg.c b/drivers/media/video/videobuf2-dma-sg.c
index 25c3b36..d087f52 100644
--- a/drivers/media/video/videobuf2-dma-sg.c
+++ b/drivers/media/video/videobuf2-dma-sg.c
@@ -209,6 +209,7 @@ static void *vb2_dma_sg_vaddr(void *buf_priv)
 		buf->vaddr = vm_map_ram(buf->pages,
 					buf->sg_desc.num_pages,
 					-1,
+					GFP_KERNEL,
 					PAGE_KERNEL);
 
 	/* add offset in case userptr is not page-aligned */
diff --git a/drivers/media/video/videobuf2-vmalloc.c b/drivers/media/video/videobuf2-vmalloc.c
index 6b5ca6c..548ebda 100644
--- a/drivers/media/video/videobuf2-vmalloc.c
+++ b/drivers/media/video/videobuf2-vmalloc.c
@@ -111,7 +111,7 @@ static void *vb2_vmalloc_get_userptr(void *alloc_ctx, unsigned long vaddr,
 			goto fail_get_user_pages;
 
 		buf->vaddr = vm_map_ram(buf->pages, buf->n_pages, -1,
-					PAGE_KERNEL);
+					GFP_KERNEL, PAGE_KERNEL);
 		if (!buf->vaddr)
 			goto fail_get_user_pages;
 	}
diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c
index 172d3cc..b3e7289 100644
--- a/fs/xfs/xfs_buf.c
+++ b/fs/xfs/xfs_buf.c
@@ -406,7 +406,7 @@ _xfs_buf_map_pages(
 
 		do {
 			bp->b_addr = vm_map_ram(bp->b_pages, bp->b_page_count,
-						-1, PAGE_KERNEL);
+						-1, GFP_NOFS, PAGE_KERNEL);
 			if (bp->b_addr)
 				break;
 			vm_unmap_aliases();
diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h
index dcdfc2b..c811763 100644
--- a/include/linux/vmalloc.h
+++ b/include/linux/vmalloc.h
@@ -40,7 +40,7 @@ struct vm_struct {
  */
 extern void vm_unmap_ram(const void *mem, unsigned int count);
 extern void *vm_map_ram(struct page **pages, unsigned int count,
-				int node, pgprot_t prot);
+				int node, gfp_t gfp_mask, pgprot_t prot);
 extern void vm_unmap_aliases(void);
 
 #ifdef CONFIG_MMU
diff --git a/mm/nommu.c b/mm/nommu.c
index d4b0c10..2fb4ec1 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -416,7 +416,8 @@ void vunmap(const void *addr)
 }
 EXPORT_SYMBOL(vunmap);
 
-void *vm_map_ram(struct page **pages, unsigned int count, int node, pgprot_t prot)
+void *vm_map_ram(struct page **pages, unsigned int count,
+		 int node, gfp_t gfp_mask, pgprot_t prot)
 {
 	BUG();
 	return NULL;
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 2aad499..3f736d1 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -1088,21 +1088,22 @@ EXPORT_SYMBOL(vm_unmap_ram);
  *
  * Returns: a pointer to the address that has been mapped, or %NULL on failure
  */
-void *vm_map_ram(struct page **pages, unsigned int count, int node, pgprot_t prot)
+void *vm_map_ram(struct page **pages, unsigned int count,
+		 int node, gfp_t gfp_mask, pgprot_t prot)
 {
 	unsigned long size = count << PAGE_SHIFT;
 	unsigned long addr;
 	void *mem;
 
 	if (likely(count <= VMAP_MAX_ALLOC)) {
-		mem = vb_alloc(size, GFP_KERNEL);
+		mem = vb_alloc(size, gfp_mask);
 		if (IS_ERR(mem))
 			return NULL;
 		addr = (unsigned long)mem;
 	} else {
 		struct vmap_area *va;
 		va = alloc_vmap_area(size, PAGE_SIZE,
-				VMALLOC_START, VMALLOC_END, node, GFP_KERNEL);
+				VMALLOC_START, VMALLOC_END, node, gfp_mask);
 		if (IS_ERR(va))
 			return NULL;
 
-- 
1.7.10

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