Subject: + mm-vmallocc-rename-vm_unlist-to-vm_uninitialized.patch added to -mm tree
To: zhangyanfei@xxxxxxxxxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Tue, 11 Jun 2013 13:25:55 -0700
The patch titled
Subject: mm/vmalloc.c: rename VM_UNLIST to VM_UNINITIALIZED
has been added to the -mm tree. Its filename is
mm-vmallocc-rename-vm_unlist-to-vm_uninitialized.patch
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------------------------------------------------------
From: Zhang Yanfei <zhangyanfei@xxxxxxxxxxxxxx>
Subject: mm/vmalloc.c: rename VM_UNLIST to VM_UNINITIALIZED
VM_UNLIST was used to indicate that the vm_struct is not listed in vmlist.
But after commit 4341fa4 ("mm, vmalloc: remove list management of vmlist
after initializing vmalloc"), the meaning of this flag changed. It now
means the vm_struct is not fully initialized. So renaming it to
VM_UNINITIALIZED seems more reasonable.
Also change clear_vm_unlist to clear_vm_uninitialized_flag.
Signed-off-by: Zhang Yanfei <zhangyanfei@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/vmalloc.h | 12 ++++++------
mm/vmalloc.c | 18 +++++++++---------
2 files changed, 15 insertions(+), 15 deletions(-)
diff -puN include/linux/vmalloc.h~mm-vmallocc-rename-vm_unlist-to-vm_uninitialized include/linux/vmalloc.h
--- a/include/linux/vmalloc.h~mm-vmallocc-rename-vm_unlist-to-vm_uninitialized
+++ a/include/linux/vmalloc.h
@@ -10,12 +10,12 @@
struct vm_area_struct; /* vma defining user mapping in mm_types.h */
/* bits in flags of vmalloc's vm_struct below */
-#define VM_IOREMAP 0x00000001 /* ioremap() and friends */
-#define VM_ALLOC 0x00000002 /* vmalloc() */
-#define VM_MAP 0x00000004 /* vmap()ed pages */
-#define VM_USERMAP 0x00000008 /* suitable for remap_vmalloc_range */
-#define VM_VPAGES 0x00000010 /* buffer for pages was vmalloc'ed */
-#define VM_UNLIST 0x00000020 /* vm_struct is not listed in vmlist */
+#define VM_IOREMAP 0x00000001 /* ioremap() and friends */
+#define VM_ALLOC 0x00000002 /* vmalloc() */
+#define VM_MAP 0x00000004 /* vmap()ed pages */
+#define VM_USERMAP 0x00000008 /* suitable for remap_vmalloc_range */
+#define VM_VPAGES 0x00000010 /* buffer for pages was vmalloc'ed */
+#define VM_UNINITIALIZED 0x00000020 /* vm_struct is not fully initialized */
/* bits [20..32] reserved for arch specific ioremap internals */
/*
diff -puN mm/vmalloc.c~mm-vmallocc-rename-vm_unlist-to-vm_uninitialized mm/vmalloc.c
--- a/mm/vmalloc.c~mm-vmallocc-rename-vm_unlist-to-vm_uninitialized
+++ a/mm/vmalloc.c
@@ -1289,15 +1289,15 @@ static void setup_vmalloc_vm(struct vm_s
spin_unlock(&vmap_area_lock);
}
-static void clear_vm_unlist(struct vm_struct *vm)
+static void clear_vm_uninitialized_flag(struct vm_struct *vm)
{
/*
- * Before removing VM_UNLIST,
+ * Before removing VM_UNINITIALIZED,
* we should make sure that vm has proper values.
* Pair with smp_rmb() in show_numa_info().
*/
smp_wmb();
- vm->flags &= ~VM_UNLIST;
+ vm->flags &= ~VM_UNINITIALIZED;
}
static struct vm_struct *__get_vm_area_node(unsigned long size,
@@ -1635,7 +1635,7 @@ void *__vmalloc_node_range(unsigned long
if (!size || (size >> PAGE_SHIFT) > totalram_pages)
goto fail;
- area = __get_vm_area_node(size, align, VM_ALLOC | VM_UNLIST,
+ area = __get_vm_area_node(size, align, VM_ALLOC | VM_UNINITIALIZED,
start, end, node, gfp_mask, caller);
if (!area)
goto fail;
@@ -1645,11 +1645,11 @@ void *__vmalloc_node_range(unsigned long
goto fail;
/*
- * In this function, newly allocated vm_struct has VM_UNLIST flag.
- * It means that vm_struct is not fully initialized.
+ * In this function, newly allocated vm_struct has VM_UNINITIALIZED
+ * flag. It means that vm_struct is not fully initialized.
* Now, it is fully initialized, so remove this flag here.
*/
- clear_vm_unlist(area);
+ clear_vm_uninitialized_flag(area);
/*
* A ref_count = 3 is needed because the vm_struct and vmap_area
@@ -2569,9 +2569,9 @@ static void show_numa_info(struct seq_fi
if (!counters)
return;
- /* Pair with smp_wmb() in clear_vm_unlist() */
+ /* Pair with smp_wmb() in clear_vm_uninitialized_flag() */
smp_rmb();
- if (v->flags & VM_UNLIST)
+ if (v->flags & VM_UNINITIALIZED)
return;
memset(counters, 0, nr_node_ids * sizeof(unsigned int));
_
Patches currently in -mm which might be from zhangyanfei@xxxxxxxxxxxxxx are
linux-next.patch
vmcore-clean-up-read_vmcore.patch
vmcore-allocate-buffer-for-elf-headers-on-page-size-alignment.patch
vmcore-allocate-buffer-for-elf-headers-on-page-size-alignment-fix.patch
vmcore-treat-memory-chunks-referenced-by-pt_load-program-header-entries-in-page-size-boundary-in-vmcore_list.patch
vmalloc-make-find_vm_area-check-in-range.patch
vmalloc-introduce-remap_vmalloc_range_partial.patch
vmalloc-introduce-remap_vmalloc_range_partial-fix.patch
vmcore-allocate-elf-note-segment-in-the-2nd-kernel-vmalloc-memory.patch
vmcore-allocate-elf-note-segment-in-the-2nd-kernel-vmalloc-memory-fix.patch
vmcore-allow-user-process-to-remap-elf-note-segment-buffer.patch
vmcore-allow-user-process-to-remap-elf-note-segment-buffer-fix.patch
vmcore-calculate-vmcore-file-size-from-buffer-size-and-total-size-of-vmcore-objects.patch
vmcore-support-mmap-on-proc-vmcore.patch
vmcore-support-mmap-on-proc-vmcore-fix.patch
vmcore-support-mmap-on-proc-vmcore-fix-2.patch
mm-ia64-prepare-for-removing-num_physpages-and-simplify-mem_init.patch
mm-vmalloc-only-call-setup_vmalloc_vm-only-in-__get_vm_area_node.patch
mm-vmalloc-call-setup_vmalloc_vm-instead-of-insert_vmalloc_vm.patch
mm-vmalloc-remove-insert_vmalloc_vm.patch
mm-vmalloc-use-clamp-to-simplify-code.patch
mm-remove-duplicated-call-of-get_pfn_range_for_nid.patch
mm-vmallocc-unbreak-__vunmap.patch
mm-vmallocc-remove-dead-code-in-vb_alloc.patch
mm-vmallocc-remove-unused-purge_fragmented_blocks_thiscpu.patch
mm-vmallocc-remove-alloc_map-from-vmap_block.patch
mm-vmallocc-emit-the-failure-message-before-return.patch
mm-vmallocc-rename-vm_unlist-to-vm_uninitialized.patch
mm-vmallocc-check-vm_uninitialized-flag-in-s_show-instead-of-show_numa_info.patch
dev-oldmem-remove-the-interface.patch
dev-oldmem-remove-the-interface-fix.patch
documentation-kdump-kdumptxt-remove-dev-oldmem-description.patch
mips-remove-savemaxmem-parameter-setup.patch
powerpc-remove-savemaxmem-parameter-setup.patch
ia64-remove-setting-for-saved_max_pfn.patch
s390-remove-setting-for-saved_max_pfn.patch
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