The patch titled
zoned vm counters: remove NR_FILE_MAPPED from scan control structure
has been removed from the -mm tree. Its filename is
zoned-vm-counters-remove-nr_file_mapped-from-scan-control-structure.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: zoned vm counters: remove NR_FILE_MAPPED from scan control structure
From: Christoph Lameter <clameter@xxxxxxx>
We can now access the number of pages in a mapped state in an inexpensive way
in shrink_active_list. So drop the nr_mapped field from scan_control.
[akpm@xxxxxxxx: bugfix]
Signed-off-by: Christoph Lameter <clameter@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
mm/vmscan.c | 11 ++---------
1 file changed, 2 insertions(+), 9 deletions(-)
diff -puN mm/vmscan.c~zoned-vm-counters-remove-nr_file_mapped-from-scan-control-structure mm/vmscan.c
--- a/mm/vmscan.c~zoned-vm-counters-remove-nr_file_mapped-from-scan-control-structure
+++ a/mm/vmscan.c
@@ -47,8 +47,6 @@ struct scan_control {
/* Incremented by the number of inactive pages that were scanned */
unsigned long nr_scanned;
- unsigned long nr_mapped; /* From page_state */
-
/* This context's GFP mask */
gfp_t gfp_mask;
@@ -744,7 +742,8 @@ static void shrink_active_list(unsigned
* how much memory
* is mapped.
*/
- mapped_ratio = (sc->nr_mapped * 100) / vm_total_pages;
+ mapped_ratio = (global_page_state(NR_FILE_MAPPED) * 100) /
+ vm_total_pages;
/*
* Now decide how much we really want to unmap some pages. The
@@ -990,7 +989,6 @@ unsigned long try_to_free_pages(struct z
}
for (priority = DEF_PRIORITY; priority >= 0; priority--) {
- sc.nr_mapped = global_page_state(NR_FILE_MAPPED);
sc.nr_scanned = 0;
if (!priority)
disable_swap_token();
@@ -1075,8 +1073,6 @@ loop_again:
total_scanned = 0;
nr_reclaimed = 0;
sc.may_writepage = !laptop_mode;
- sc.nr_mapped = global_page_state(NR_FILE_MAPPED);
-
inc_page_state(pageoutrun);
for (i = 0; i < pgdat->nr_zones; i++) {
@@ -1407,9 +1403,7 @@ unsigned long shrink_all_memory(unsigned
for (prio = DEF_PRIORITY; prio >= 0; prio--) {
unsigned long nr_to_scan = nr_pages - ret;
- sc.nr_mapped = global_page_state(NR_FILE_MAPPED);
sc.nr_scanned = 0;
-
ret += shrink_all_zones(nr_to_scan, prio, pass, &sc);
if (ret >= nr_pages)
goto out;
@@ -1548,7 +1542,6 @@ static int __zone_reclaim(struct zone *z
struct scan_control sc = {
.may_writepage = !!(zone_reclaim_mode & RECLAIM_WRITE),
.may_swap = !!(zone_reclaim_mode & RECLAIM_SWAP),
- .nr_mapped = global_page_state(NR_FILE_MAPPED),
.swap_cluster_max = max_t(unsigned long, nr_pages,
SWAP_CLUSTER_MAX),
.gfp_mask = gfp_mask,
_
Patches currently in -mm which might be from clameter@xxxxxxx are
origin.patch
zvc-zone_reclaim-leave-1%-of-unmapped-pagecache-pages-for-file-i-o.patch
zvc-zone_reclaim-leave-1%-of-unmapped-pagecache-pages-for-file-i-o-tunable.patch
zvc-zone_reclaim-leave-1%-of-unmapped-pagecache-pages-for-file-i-o-tunable-rename.patch
-
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