mempolicy: rename mpol_copy to mpol_dup

This patch renames mpol_copy() to mpol_dup() because, well, that's what it
does.  Like, e.g., strdup() for strings, mpol_dup() takes a pointer to an
existing mempolicy, allocates a new one and copies the contents.

In a later patch, I want to use the name mpol_copy() to copy the contents from
one mempolicy to another like, e.g., strcpy() does for strings.

Signed-off-by: Lee Schermerhorn <lee.schermerhorn@hp.com>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2 files changed, 4 insertions, 4 deletions

diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index c9923e3c9a3b..024888bb9814 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -941,7 +941,7 @@ static int update_nodemask(struct cpuset *cs, char *buf)
         cs->mems_generation = cpuset_mems_generation++;
         mutex_unlock(&callback_mutex);
 
-        cpuset_being_rebound = cs;              /* causes mpol_copy() rebind */
+        cpuset_being_rebound = cs;              /* causes mpol_dup() rebind */
 
         fudge = 10;                             /* spare mmarray[] slots */
         fudge += cpus_weight(cs->cpus_allowed); /* imagine one fork-bomb/cpu */
@@ -992,7 +992,7 @@ static int update_nodemask(struct cpuset *cs, char *buf)
          * rebind the vma mempolicies of each mm in mmarray[] to their
          * new cpuset, and release that mm.  The mpol_rebind_mm()
          * call takes mmap_sem, which we couldn't take while holding
-         * tasklist_lock.  Forks can happen again now - the mpol_copy()
+         * tasklist_lock.  Forks can happen again now - the mpol_dup()
          * cpuset_being_rebound check will catch such forks, and rebind
          * their vma mempolicies too.  Because we still hold the global
          * cgroup_mutex, we know that no other rebind effort will
diff --git a/kernel/fork.c b/kernel/fork.c
index 1a5ae2084574..6067e429f281 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -279,7 +279,7 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
                 if (!tmp)
                         goto fail_nomem;
                 *tmp = *mpnt;
-                pol = mpol_copy(vma_policy(mpnt));
+                pol = mpol_dup(vma_policy(mpnt));
                 retval = PTR_ERR(pol);
                 if (IS_ERR(pol))
                         goto fail_nomem_policy;
@@ -1116,7 +1116,7 @@ static struct task_struct *copy_process(unsigned long clone_flags,
         p->audit_context = NULL;
         cgroup_fork(p);
 #ifdef CONFIG_NUMA
-        p->mempolicy = mpol_copy(p->mempolicy);
+        p->mempolicy = mpol_dup(p->mempolicy);
         if (IS_ERR(p->mempolicy)) {
                 retval = PTR_ERR(p->mempolicy);
                 p->mempolicy = NULL;