mm: unify remaining mem_cont, mem, etc. variable names to memcg

Signed-off-by: Johannes Weiner <jweiner@redhat.com>
Acked-by: David Rientjes <rientjes@google.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Cc: Balbir Singh <bsingharora@gmail.com>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 19 insertions, 19 deletions

diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 05c0f27d4ed1..2958fd8e7c9a 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -152,7 +152,7 @@ struct task_struct *find_lock_task_mm(struct task_struct *p)
 
 /* return true if the task is not adequate as candidate victim task. */
 static bool oom_unkillable_task(struct task_struct *p,
-                const struct mem_cgroup *mem, const nodemask_t *nodemask)
+                const struct mem_cgroup *memcg, const nodemask_t *nodemask)
 {
         if (is_global_init(p))
                 return true;
@@ -160,7 +160,7 @@ static bool oom_unkillable_task(struct task_struct *p,
                 return true;
 
         /* When mem_cgroup_out_of_memory() and p is not member of the group */
-        if (mem && !task_in_mem_cgroup(p, mem))
+        if (memcg && !task_in_mem_cgroup(p, memcg))
                 return true;
 
         /* p may not have freeable memory in nodemask */
@@ -179,12 +179,12 @@ static bool oom_unkillable_task(struct task_struct *p,
  * predictable as possible.  The goal is to return the highest value for the
  * task consuming the most memory to avoid subsequent oom failures.
  */
-unsigned int oom_badness(struct task_struct *p, struct mem_cgroup *mem,
+unsigned int oom_badness(struct task_struct *p, struct mem_cgroup *memcg,
                       const nodemask_t *nodemask, unsigned long totalpages)
 {
         long points;
 
-        if (oom_unkillable_task(p, mem, nodemask))
+        if (oom_unkillable_task(p, memcg, nodemask))
                 return 0;
 
         p = find_lock_task_mm(p);
@@ -308,7 +308,7 @@ static enum oom_constraint constrained_alloc(struct zonelist *zonelist,
  * (not docbooked, we don't want this one cluttering up the manual)
  */
 static struct task_struct *select_bad_process(unsigned int *ppoints,
-                unsigned long totalpages, struct mem_cgroup *mem,
+                unsigned long totalpages, struct mem_cgroup *memcg,
                 const nodemask_t *nodemask)
 {
         struct task_struct *g, *p;
@@ -320,7 +320,7 @@ static struct task_struct *select_bad_process(unsigned int *ppoints,
 
                 if (p->exit_state)
                         continue;
-                if (oom_unkillable_task(p, mem, nodemask))
+                if (oom_unkillable_task(p, memcg, nodemask))
                         continue;
 
                 /*
@@ -364,7 +364,7 @@ static struct task_struct *select_bad_process(unsigned int *ppoints,
                         }
                 }
 
-                points = oom_badness(p, mem, nodemask, totalpages);
+                points = oom_badness(p, memcg, nodemask, totalpages);
                 if (points > *ppoints) {
                         chosen = p;
                         *ppoints = points;
@@ -387,14 +387,14 @@ static struct task_struct *select_bad_process(unsigned int *ppoints,
  *
  * Call with tasklist_lock read-locked.
  */
-static void dump_tasks(const struct mem_cgroup *mem, const nodemask_t *nodemask)
+static void dump_tasks(const struct mem_cgroup *memcg, const nodemask_t *nodemask)
 {
         struct task_struct *p;
         struct task_struct *task;
 
         pr_info("[ pid ]   uid  tgid total_vm      rss cpu oom_adj oom_score_adj name\n");
         for_each_process(p) {
-                if (oom_unkillable_task(p, mem, nodemask))
+                if (oom_unkillable_task(p, memcg, nodemask))
                         continue;
 
                 task = find_lock_task_mm(p);
@@ -417,7 +417,7 @@ static void dump_tasks(const struct mem_cgroup *mem, const nodemask_t *nodemask)
 }
 
 static void dump_header(struct task_struct *p, gfp_t gfp_mask, int order,
-                        struct mem_cgroup *mem, const nodemask_t *nodemask)
+                        struct mem_cgroup *memcg, const nodemask_t *nodemask)
 {
         task_lock(current);
         pr_warning("%s invoked oom-killer: gfp_mask=0x%x, order=%d, "
@@ -427,10 +427,10 @@ static void dump_header(struct task_struct *p, gfp_t gfp_mask, int order,
         cpuset_print_task_mems_allowed(current);
         task_unlock(current);
         dump_stack();
-        mem_cgroup_print_oom_info(mem, p);
+        mem_cgroup_print_oom_info(memcg, p);
         show_mem(SHOW_MEM_FILTER_NODES);
         if (sysctl_oom_dump_tasks)
-                dump_tasks(mem, nodemask);
+                dump_tasks(memcg, nodemask);
 }
 
 #define K(x) ((x) << (PAGE_SHIFT-10))
@@ -484,7 +484,7 @@ static int oom_kill_task(struct task_struct *p)
 
 static int oom_kill_process(struct task_struct *p, gfp_t gfp_mask, int order,
                             unsigned int points, unsigned long totalpages,
-                            struct mem_cgroup *mem, nodemask_t *nodemask,
+                            struct mem_cgroup *memcg, nodemask_t *nodemask,
                             const char *message)
 {
         struct task_struct *victim = p;
@@ -493,7 +493,7 @@ static int oom_kill_process(struct task_struct *p, gfp_t gfp_mask, int order,
         unsigned int victim_points = 0;
 
         if (printk_ratelimit())
-                dump_header(p, gfp_mask, order, mem, nodemask);
+                dump_header(p, gfp_mask, order, memcg, nodemask);
 
         /*
          * If the task is already exiting, don't alarm the sysadmin or kill
@@ -524,7 +524,7 @@ static int oom_kill_process(struct task_struct *p, gfp_t gfp_mask, int order,
                         /*
                          * oom_badness() returns 0 if the thread is unkillable
                          */
-                        child_points = oom_badness(child, mem, nodemask,
+                        child_points = oom_badness(child, memcg, nodemask,
                                                                 totalpages);
                         if (child_points > victim_points) {
                                 victim = child;
@@ -561,7 +561,7 @@ static void check_panic_on_oom(enum oom_constraint constraint, gfp_t gfp_mask,
 }
 
 #ifdef CONFIG_CGROUP_MEM_RES_CTLR
-void mem_cgroup_out_of_memory(struct mem_cgroup *mem, gfp_t gfp_mask)
+void mem_cgroup_out_of_memory(struct mem_cgroup *memcg, gfp_t gfp_mask)
 {
         unsigned long limit;
         unsigned int points = 0;
@@ -578,14 +578,14 @@ void mem_cgroup_out_of_memory(struct mem_cgroup *mem, gfp_t gfp_mask)
         }
 
         check_panic_on_oom(CONSTRAINT_MEMCG, gfp_mask, 0, NULL);
-        limit = mem_cgroup_get_limit(mem) >> PAGE_SHIFT;
+        limit = mem_cgroup_get_limit(memcg) >> PAGE_SHIFT;
         read_lock(&tasklist_lock);
 retry:
-        p = select_bad_process(&points, limit, mem, NULL);
+        p = select_bad_process(&points, limit, memcg, NULL);
         if (!p || PTR_ERR(p) == -1UL)
                 goto out;
 
-        if (oom_kill_process(p, gfp_mask, 0, points, limit, mem, NULL,
+        if (oom_kill_process(p, gfp_mask, 0, points, limit, memcg, NULL,
                                 "Memory cgroup out of memory"))
                 goto retry;
 out: