The patch titled
page-types: make voffset local variables
has been added to the -mm tree. Its filename is
page-types-make-voffset-local-variables.patch
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*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: page-types: make voffset local variables
From: Wu Fengguang <fengguang.wu@xxxxxxxxx>
Signed-off-by: Wu Fengguang <fengguang.wu@xxxxxxxxx>
Cc: Andi Kleen <andi@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
Documentation/vm/page-types.c | 39 +++++++++++++++++---------------
1 file changed, 21 insertions(+), 18 deletions(-)
diff -puN Documentation/vm/page-types.c~page-types-make-voffset-local-variables Documentation/vm/page-types.c
--- a/Documentation/vm/page-types.c~page-types-make-voffset-local-variables
+++ a/Documentation/vm/page-types.c
@@ -159,7 +159,6 @@ static unsigned long opt_size[MAX_ADDR_R
static int nr_vmas;
static unsigned long pg_start[MAX_VMAS];
static unsigned long pg_end[MAX_VMAS];
-static unsigned long voffset;
#define MAX_BIT_FILTERS 64
static int nr_bit_filters;
@@ -328,7 +327,8 @@ static char *page_flag_longname(uint64_t
* page list and summary
*/
-static void show_page_range(unsigned long offset, uint64_t flags)
+static void show_page_range(unsigned long voffset,
+ unsigned long offset, uint64_t flags)
{
static uint64_t flags0;
static unsigned long voff;
@@ -354,7 +354,8 @@ static void show_page_range(unsigned lon
count = 1;
}
-static void show_page(unsigned long offset, uint64_t flags)
+static void show_page(unsigned long voffset,
+ unsigned long offset, uint64_t flags)
{
if (opt_pid)
printf("%lx\t", voffset);
@@ -435,7 +436,6 @@ static uint64_t well_known_flags(uint64_
return flags;
}
-
/*
* page frame walker
*/
@@ -467,7 +467,8 @@ static int hash_slot(uint64_t flags)
exit(EXIT_FAILURE);
}
-static void add_page(unsigned long offset, uint64_t flags)
+static void add_page(unsigned long voffset,
+ unsigned long offset, uint64_t flags)
{
flags = expand_overloaded_flags(flags);
@@ -478,16 +479,18 @@ static void add_page(unsigned long offse
return;
if (opt_list == 1)
- show_page_range(offset, flags);
+ show_page_range(voffset, offset, flags);
else if (opt_list == 2)
- show_page(offset, flags);
+ show_page(voffset, offset, flags);
nr_pages[hash_slot(flags)]++;
total_pages++;
}
#define KPAGEFLAGS_BATCH (64 << 10) /* 64k pages */
-static void walk_pfn(unsigned long index, unsigned long count)
+static void walk_pfn(unsigned long voffset,
+ unsigned long index,
+ unsigned long count)
{
uint64_t buf[KPAGEFLAGS_BATCH];
unsigned long batch;
@@ -501,7 +504,7 @@ static void walk_pfn(unsigned long index
break;
for (i = 0; i < pages; i++)
- add_page(index + i, buf[i]);
+ add_page(voffset + i, index + i, buf[i]);
index += pages;
count -= pages;
@@ -525,9 +528,8 @@ static void walk_vma(unsigned long index
for (i = 0; i < pages; i++) {
pfn = pagemap_pfn(buf[i]);
- voffset = index + i;
if (pfn)
- walk_pfn(pfn, 1);
+ walk_pfn(index + i, pfn, 1);
}
index += pages;
@@ -537,8 +539,9 @@ static void walk_vma(unsigned long index
static void walk_task(unsigned long index, unsigned long count)
{
- int i = 0;
const unsigned long end = index + count;
+ unsigned long start;
+ int i = 0;
while (index < end) {
@@ -548,11 +551,11 @@ static void walk_task(unsigned long inde
if (pg_start[i] >= end)
return;
- voffset = max_t(unsigned long, pg_start[i], index);
- index = min_t(unsigned long, pg_end[i], end);
+ start = max_t(unsigned long, pg_start[i], index);
+ index = min_t(unsigned long, pg_end[i], end);
- assert(voffset < index);
- walk_vma(voffset, index - voffset);
+ assert(start < index);
+ walk_vma(start, index - start);
}
}
@@ -577,7 +580,7 @@ static void walk_addr_ranges(void)
for (i = 0; i < nr_addr_ranges; i++)
if (!opt_pid)
- walk_pfn(opt_offset[i], opt_size[i]);
+ walk_pfn(0, opt_offset[i], opt_size[i]);
else
walk_task(opt_offset[i], opt_size[i]);
@@ -879,7 +882,7 @@ int main(int argc, char *argv[])
walk_addr_ranges();
if (opt_list == 1)
- show_page_range(0, 0); /* drain the buffer */
+ show_page_range(0, 0, 0); /* drain the buffer */
if (opt_no_summary)
return 0;
_
Patches currently in -mm which might be from fengguang.wu@xxxxxxxxx are
linux-next.patch
pagemap-export-kpf_hwpoison.patch
pagemap-document-kpf_ksm-and-show-it-in-page-types.patch
page-types-add-gpl-note.patch
page-types-introduce-checked_open.patch
page-types-make-standalone-pagemap-kpageflags-read-routines.patch
page-types-make-voffset-local-variables.patch
page-types-introduce-kpageflags_flags.patch
page-types-add-hwpoison-unpoison-feature.patch
readahead-add-blk_run_backing_dev.patch
mm-vsmcan-check-shrink_active_list-sc-isolate_pages-return-value.patch
dev-mem-remove-redundant-test-on-len.patch
dev-mem-introduce-size_inside_page.patch
dev-mem-cleanup-unxlate_dev_mem_ptr-calls.patch
dev-mem-cleanup-unxlate_dev_mem_ptr-calls-fix.patch
dev-mem-cleanup-unxlate_dev_mem_ptr-calls-fix-fix.patch
dev-mem-make-size_inside_page-logic-straight.patch
dev-mem-remove-the-written-variable-in-write_kmem.patch
dev-mem-remove-the-written-variable-in-write_kmem-fix.patch
dev-mem-remove-redundant-parameter-from-do_write_kmem.patch
--
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