tracing: x86, mmiotrace: code consistency/legibility improvement

kmmio_probe being *p and kmmio_fault_page being sometimes *f and
sometimes *p is not helpful.

[ Impact: cleanup ]

Signed-off-by: Stuart Bennett <stuart@freedesktop.org>
Acked-by: Pekka Paalanen <pq@iki.fi>
Cc: Steven Rostedt <rostedt@goodmis.org>
LKML-Reference: <1240946271-7083-3-git-send-email-stuart@freedesktop.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/arch/x86/mm/kmmio.c b/arch/x86/mm/kmmio.c
index 4f115e0..869181a 100644 (file)
--- a/arch/x86/mm/kmmio.c
+++ b/arch/x86/mm/kmmio.c
@@ -97,13 +97,13 @@ static struct kmmio_probe *get_kmmio_probe(unsigned long addr)
 static struct kmmio_fault_page *get_kmmio_fault_page(unsigned long page)
 {
        struct list_head *head;
-       struct kmmio_fault_page *p;
+       struct kmmio_fault_page *f;
 
        page &= PAGE_MASK;
        head = kmmio_page_list(page);
-       list_for_each_entry_rcu(p, head, list) {
-               if (p->page == page)
-                       return p;
+       list_for_each_entry_rcu(f, head, list) {
+               if (f->page == page)
+                       return f;
        }
        return NULL;
 }
@@ -439,12 +439,12 @@ static void rcu_free_kmmio_fault_pages(struct rcu_head *head)
                                                head,
                                                struct kmmio_delayed_release,
                                                rcu);
-       struct kmmio_fault_page *p = dr->release_list;
-       while (p) {
-               struct kmmio_fault_page *next = p->release_next;
-               BUG_ON(p->count);
-               kfree(p);
-               p = next;
+       struct kmmio_fault_page *f = dr->release_list;
+       while (f) {
+               struct kmmio_fault_page *next = f->release_next;
+               BUG_ON(f->count);
+               kfree(f);
+               f = next;
        }
        kfree(dr);
 }
@@ -453,19 +453,19 @@ static void remove_kmmio_fault_pages(struct rcu_head *head)
 {
        struct kmmio_delayed_release *dr =
                container_of(head, struct kmmio_delayed_release, rcu);
-       struct kmmio_fault_page *p = dr->release_list;
+       struct kmmio_fault_page *f = dr->release_list;
        struct kmmio_fault_page **prevp = &dr->release_list;
        unsigned long flags;
 
        spin_lock_irqsave(&kmmio_lock, flags);
-       while (p) {
-               if (!p->count) {
-                       list_del_rcu(&p->list);
-                       prevp = &p->release_next;
+       while (f) {
+               if (!f->count) {
+                       list_del_rcu(&f->list);
+                       prevp = &f->release_next;
                } else {
-                       *prevp = p->release_next;
+                       *prevp = f->release_next;
                }
-               p = p->release_next;
+               f = f->release_next;
        }
        spin_unlock_irqrestore(&kmmio_lock, flags);