Module Name: src
Committed By: ad
Date: Sun Mar 15 21:06:30 UTC 2020
Modified Files:
src/sys/uvm: uvm_physseg.c
Log Message:
uvm_physseg: cluster fields used during RB tree lookup for PHYS_TO_VM_PAGE().
To generate a diff of this commit:
cvs rdiff -u -r1.13 -r1.14 src/sys/uvm/uvm_physseg.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/uvm/uvm_physseg.c
diff -u src/sys/uvm/uvm_physseg.c:1.13 src/sys/uvm/uvm_physseg.c:1.14
--- src/sys/uvm/uvm_physseg.c:1.13 Sat Dec 21 14:41:44 2019
+++ src/sys/uvm/uvm_physseg.c Sun Mar 15 21:06:30 2020
@@ -1,4 +1,4 @@
-/* $NetBSD: uvm_physseg.c,v 1.13 2019/12/21 14:41:44 ad Exp $ */
+/* $NetBSD: uvm_physseg.c,v 1.14 2020/03/15 21:06:30 ad Exp $ */
/*
* Copyright (c) 1997 Charles D. Cranor and Washington University.
@@ -87,12 +87,15 @@
* uvm_physseg: describes one segment of physical memory
*/
struct uvm_physseg {
+ /* used during RB tree lookup for PHYS_TO_VM_PAGE(). */
struct rb_node rb_node; /* tree information */
paddr_t start; /* PF# of first page in segment */
paddr_t end; /* (PF# of last page in segment) + 1 */
+ struct vm_page *pgs; /* vm_page structures (from start) */
+
+ /* less performance sensitive fields. */
paddr_t avail_start; /* PF# of first free page in segment */
paddr_t avail_end; /* (PF# of last free page in segment) +1 */
- struct vm_page *pgs; /* vm_page structures (from start) */
struct extent *ext; /* extent(9) structure to manage pgs[] */
int free_list; /* which free list they belong on */
u_int start_hint; /* start looking for free pages here */
@@ -121,9 +124,9 @@ struct vm_page *uvm_physseg_seg_alloc_fr
struct uvm_physseg_graph {
struct rb_tree rb_tree; /* Tree for entries */
int nentries; /* Number of entries */
-};
+} __aligned(COHERENCY_UNIT);
-static struct uvm_physseg_graph uvm_physseg_graph;
+static struct uvm_physseg_graph uvm_physseg_graph __read_mostly;
/*
* Note on kmem(9) allocator usage:
