The patch titled
Subject: mm: replace vma->sharead.linear with vma->shared
has been added to the -mm tree. Its filename is
mm-replace-vma-shareadlinear-with-vma-shared.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-replace-vma-shareadlinear-with-vma-shared.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-replace-vma-shareadlinear-with-vma-shared.patch
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------------------------------------------------------
From: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>
Subject: mm: replace vma->sharead.linear with vma->shared
After removing vma->shared.nonlinear we have only one member of
vma->shared union, which doesn't make much sense.
This patch drops the union and move struct vma->shared.linear to
vma->shared.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/mm_types.h | 8 +++-----
mm/interval_tree.c | 34 +++++++++++++++++-----------------
2 files changed, 20 insertions(+), 22 deletions(-)
diff -puN include/linux/mm_types.h~mm-replace-vma-shareadlinear-with-vma-shared include/linux/mm_types.h
--- a/include/linux/mm_types.h~mm-replace-vma-shareadlinear-with-vma-shared
+++ a/include/linux/mm_types.h
@@ -275,11 +275,9 @@ struct vm_area_struct {
* For areas with an address space and backing store,
* linkage into the address_space->i_mmap interval tree.
*/
- union {
- struct {
- struct rb_node rb;
- unsigned long rb_subtree_last;
- } linear;
+ struct {
+ struct rb_node rb;
+ unsigned long rb_subtree_last;
} shared;
/*
diff -puN mm/interval_tree.c~mm-replace-vma-shareadlinear-with-vma-shared mm/interval_tree.c
--- a/mm/interval_tree.c~mm-replace-vma-shareadlinear-with-vma-shared
+++ a/mm/interval_tree.c
@@ -21,8 +21,8 @@ static inline unsigned long vma_last_pgo
return v->vm_pgoff + ((v->vm_end - v->vm_start) >> PAGE_SHIFT) - 1;
}
-INTERVAL_TREE_DEFINE(struct vm_area_struct, shared.linear.rb,
- unsigned long, shared.linear.rb_subtree_last,
+INTERVAL_TREE_DEFINE(struct vm_area_struct, shared.rb,
+ unsigned long, shared.rb_subtree_last,
vma_start_pgoff, vma_last_pgoff,, vma_interval_tree)
/* Insert node immediately after prev in the interval tree */
@@ -36,26 +36,26 @@ void vma_interval_tree_insert_after(stru
VM_BUG_ON_VMA(vma_start_pgoff(node) != vma_start_pgoff(prev), node);
- if (!prev->shared.linear.rb.rb_right) {
+ if (!prev->shared.rb.rb_right) {
parent = prev;
- link = &prev->shared.linear.rb.rb_right;
+ link = &prev->shared.rb.rb_right;
} else {
- parent = rb_entry(prev->shared.linear.rb.rb_right,
- struct vm_area_struct, shared.linear.rb);
- if (parent->shared.linear.rb_subtree_last < last)
- parent->shared.linear.rb_subtree_last = last;
- while (parent->shared.linear.rb.rb_left) {
- parent = rb_entry(parent->shared.linear.rb.rb_left,
- struct vm_area_struct, shared.linear.rb);
- if (parent->shared.linear.rb_subtree_last < last)
- parent->shared.linear.rb_subtree_last = last;
+ parent = rb_entry(prev->shared.rb.rb_right,
+ struct vm_area_struct, shared.rb);
+ if (parent->shared.rb_subtree_last < last)
+ parent->shared.rb_subtree_last = last;
+ while (parent->shared.rb.rb_left) {
+ parent = rb_entry(parent->shared.rb.rb_left,
+ struct vm_area_struct, shared.rb);
+ if (parent->shared.rb_subtree_last < last)
+ parent->shared.rb_subtree_last = last;
}
- link = &parent->shared.linear.rb.rb_left;
+ link = &parent->shared.rb.rb_left;
}
- node->shared.linear.rb_subtree_last = last;
- rb_link_node(&node->shared.linear.rb, &parent->shared.linear.rb, link);
- rb_insert_augmented(&node->shared.linear.rb, root,
+ node->shared.rb_subtree_last = last;
+ rb_link_node(&node->shared.rb, &parent->shared.rb, link);
+ rb_insert_augmented(&node->shared.rb, root,
&vma_interval_tree_augment);
}
_
Patches currently in -mm which might be from kirill.shutemov@xxxxxxxxxxxxxxx are
mm-protect-set_page_dirty-from-ongoing-truncation.patch
mm-replace-remap_file_pages-syscall-with-emulation.patch
mm-drop-support-of-non-linear-mapping-from-unmap-zap-codepath.patch
mm-drop-support-of-non-linear-mapping-from-fault-codepath.patch
mm-drop-vm_ops-remap_pages-and-generic_file_remap_pages-stub.patch
proc-drop-handling-non-linear-mappings.patch
rmap-drop-support-of-non-linear-mappings.patch
mm-replace-vma-shareadlinear-with-vma-shared.patch
mm-remove-rest-usage-of-vm_nonlinear-and-pte_file.patch
asm-generic-drop-unused-pte_file-helpers.patch
alpha-drop-_page_file-and-pte_file-related-helpers.patch
arc-drop-_page_file-and-pte_file-related-helpers.patch
arm64-drop-pte_file-and-pte_file-related-helpers.patch
arm-drop-l_pte_file-and-pte_file-related-helpers.patch
avr32-drop-_page_file-and-pte_file-related-helpers.patch
blackfin-drop-pte_file.patch
c6x-drop-pte_file.patch
cris-drop-_page_file-and-pte_file-related-helpers.patch
frv-drop-_page_file-and-pte_file-related-helpers.patch
hexagon-drop-_page_file-and-pte_file-related-helpers.patch
ia64-drop-_page_file-and-pte_file-related-helpers.patch
m32r-drop-_page_file-and-pte_file-related-helpers.patch
m68k-drop-_page_file-and-pte_file-related-helpers.patch
metag-drop-_page_file-and-pte_file-related-helpers.patch
microblaze-drop-_page_file-and-pte_file-related-helpers.patch
mips-drop-_page_file-and-pte_file-related-helpers.patch
mn10300-drop-_page_file-and-pte_file-related-helpers.patch
nios2-drop-_page_file-and-pte_file-related-helpers.patch
openrisc-drop-_page_file-and-pte_file-related-helpers.patch
parisc-drop-_page_file-and-pte_file-related-helpers.patch
powerpc-drop-_page_file-and-pte_file-related-helpers.patch
s390-drop-pte_file-related-helpers.patch
score-drop-_page_file-and-pte_file-related-helpers.patch
sh-drop-_page_file-and-pte_file-related-helpers.patch
sparc-drop-pte_file-related-helpers.patch
tile-drop-pte_file-related-helpers.patch
um-drop-_page_file-and-pte_file-related-helpers.patch
unicore32-drop-pte_file-related-helpers.patch
x86-drop-_page_file-and-pte_file-related-helpers.patch
xtensa-drop-_page_file-and-pte_file-related-helpers.patch
mm-memory-remove-vm_file-check-on-shared-writable-vmas.patch
mm-memory-merge-shared-writable-dirtying-branches-in-do_wp_page.patch
mm-add-fields-for-compound-destructor-and-order-into-struct-page.patch
mm-add-vm_bug_on_page-for-page_mapcount.patch
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