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

Conversion of nr_unstable to a per zone counter

We need to do some special modifications to the nfs code since there are
multiple cases of disposition and we need to have a page ref for proper
accounting.

This converts the last critical page state of the VM and therefore we need to
remove several functions that were depending on GET_PAGE_STATE_LAST in order
to make the kernel compile again.  We are only left with event type counters
in page state.

[akpm@osdl.org: bugfixes]
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c
index 48cb35862445..eae66b41a1a4 100644
--- a/fs/proc/proc_misc.c
+++ b/fs/proc/proc_misc.c
@@ -120,7 +120,6 @@ static int meminfo_read_proc(char *page, char **start, off_t off,
 {
         struct sysinfo i;
         int len;
-        struct page_state ps;
         unsigned long inactive;
         unsigned long active;
         unsigned long free;
@@ -129,7 +128,6 @@ static int meminfo_read_proc(char *page, char **start, off_t off,
         struct vmalloc_info vmi;
         long cached;
 
-        get_page_state(&ps);
         get_zone_counts(&active, &inactive, &free);
 
 /*
@@ -172,6 +170,7 @@ static int meminfo_read_proc(char *page, char **start, off_t off,
                 "Mapped:       %8lu kB\n"
                 "Slab:         %8lu kB\n"
                 "PageTables:   %8lu kB\n"
+                "NFS Unstable: %8lu kB\n"
                 "CommitLimit:  %8lu kB\n"
                 "Committed_AS: %8lu kB\n"
                 "VmallocTotal: %8lu kB\n"
@@ -196,6 +195,7 @@ static int meminfo_read_proc(char *page, char **start, off_t off,
                 K(global_page_state(NR_FILE_MAPPED)),
                 K(global_page_state(NR_SLAB)),
                 K(global_page_state(NR_PAGETABLE)),
+                K(global_page_state(NR_UNSTABLE_NFS)),
                 K(allowed),
                 K(committed),
                 (unsigned long)VMALLOC_TOTAL >> 10,