NFS: nfs_show_stats; for_each_possible_cpu(), not NR_CPUS

Convert a for-loop that explicitly references "NR_CPUS" into the
potentially more efficient for_each_possible_cpu() construct.

Signed-off-by: John Hawkes <hawkes@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 2f7656b..d0b991a 100644 (file)
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -700,12 +700,9 @@ static int nfs_show_stats(struct seq_file *m, struct vfsmount *mnt)
        /*
         * Display superblock I/O counters
         */
-       for (cpu = 0; cpu < NR_CPUS; cpu++) {
+       for_each_possible_cpu(cpu) {
                struct nfs_iostats *stats;
 
-               if (!cpu_possible(cpu))
-                       continue;
-
                preempt_disable();
                stats = per_cpu_ptr(nfss->io_stats, cpu);