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[PATCH] zoned vm counters: conversion of nr_dirty to per zone counter

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This makes nr_dirty a per zone counter.  Looping over all processors is
avoided during writeback state determination.

The counter aggregation for nr_dirty had to be undone in the NFS layer since
we summed up the page counts from multiple zones.  Someone more familiar with
NFS should probably review what I have done.

[[email protected]: bugfix]
Signed-off-by: Christoph Lameter <[email protected]>
Cc: Trond Myklebust <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Christoph Lameter 2006-06-30 01:55:39 -07:00 • committed by Linus Torvalds
commit b1e7a8fd85
12 changed files with 16 additions and 17 deletions
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4
drivers/base/node.c
View file

@ -50,8 +50,6 @@ static ssize_t node_read_meminfo(struct sys_device * dev, char * buf)
__get_zone_counts(&active, &inactive, &free, NODE_DATA(nid));
/* Check for negative values in these approximate counters */
if ((long)ps.nr_dirty < 0)
ps.nr_dirty = 0;
if ((long)ps.nr_writeback < 0)
ps.nr_writeback = 0;
@ -81,7 +79,7 @@ static ssize_t node_read_meminfo(struct sys_device * dev, char * buf)
nid, K(i.freehigh),
nid, K(i.totalram - i.totalhigh),
nid, K(i.freeram - i.freehigh),
nid, K(ps.nr_dirty),
nid, K(node_page_state(nid, NR_FILE_DIRTY)),
nid, K(ps.nr_writeback),
nid, K(node_page_state(nid, NR_FILE_PAGES)),
nid, K(node_page_state(nid, NR_FILE_MAPPED)),