Implement mem pool for frame and stack

Ran posix compliance test and sanity test
Signed-off-by: shishir gowda <shishirng@gluster.com>
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>

BUG: 329 (Replacing memory allocation functions with mem-type functions)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=329

3 files changed, 59 insertions, 14 deletions

diff --git a/cli/src/cli.c b/cli/src/cli.c
index efa41eb8507..ad70696e258 100644
--- a/cli/src/cli.c
+++ b/cli/src/cli.c
@@ -208,6 +208,19 @@ glusterfs_ctx_defaults_init (glusterfs_ctx_t *ctx)
                           cli_mt_call_pool_t);
         if (!pool)
                 return -1;
+
+        /* frame_mem_pool size 112 * 16k */
+        pool->frame_mem_pool = mem_pool_new (call_frame_t, 16384);
+
+        if (!pool->frame_mem_pool)
+                return -1;
+
+        /* stack_mem_pool size 256 * 8k */
+        pool->stack_mem_pool = mem_pool_new (call_stack_t, 8192); 
+
+        if (!pool->stack_mem_pool)
+                return -1;
+
         INIT_LIST_HEAD (&pool->all_frames);
         LOCK_INIT (&pool->lock);
         ctx->pool = pool;
diff --git a/glusterfsd/src/glusterfsd.c b/glusterfsd/src/glusterfsd.c
index 7fd4478800f..24c45219b01 100644
--- a/glusterfsd/src/glusterfsd.c
+++ b/glusterfsd/src/glusterfsd.c
@@ -584,11 +584,17 @@ static void
 cleanup_and_exit (int signum)
 {
         glusterfs_ctx_t *ctx = NULL;
+        call_pool_t     *tmp_pool = NULL;
 
         ctx = glusterfs_ctx_get ();
 
         gf_log ("glusterfsd", GF_LOG_NORMAL, "shutting down");
 
+        tmp_pool = ctx->pool;
+        mem_pool_destroy (tmp_pool->frame_mem_pool);
+        mem_pool_destroy (tmp_pool->stack_mem_pool);
+        tmp_pool = NULL;
+
         glusterfs_pidfile_cleanup (ctx);
 
         exit (0);
@@ -772,6 +778,19 @@ glusterfs_ctx_defaults_init (glusterfs_ctx_t *ctx)
                           gfd_mt_call_pool_t);
         if (!pool)
                 return -1;
+
+        /* frame_mem_pool size 112 * 16k */
+        pool->frame_mem_pool = mem_pool_new (call_frame_t, 16384);
+
+        if (!pool->frame_mem_pool)
+                return -1;
+
+        /* stack_mem_pool size 256 * 8k */
+        pool->stack_mem_pool = mem_pool_new (call_stack_t, 8192);
+
+        if (!pool->stack_mem_pool)
+                return -1;
+
         INIT_LIST_HEAD (&pool->all_frames);
         LOCK_INIT (&pool->lock);
         ctx->pool = pool;
diff --git a/libglusterfs/src/stack.h b/libglusterfs/src/stack.h
index 6015b8158b0..ad8abe1ea1c 100644
--- a/libglusterfs/src/stack.h
+++ b/libglusterfs/src/stack.h
@@ -62,6 +62,8 @@ struct _call_pool_t {
 	};
 	int64_t                     cnt;
 	gf_lock_t                   lock;
+       struct mem_pool             *frame_mem_pool;
+       struct mem_pool             *stack_mem_pool;
 };
 
 struct _call_frame_t {
@@ -129,14 +131,22 @@ gf_update_latency (call_frame_t *frame);
 static inline void
 FRAME_DESTROY (call_frame_t *frame)
 {
+       void *local = NULL;
 	if (frame->next)
 		frame->next->prev = frame->prev;
 	if (frame->prev)
 		frame->prev->next = frame->next;
-	if (frame->local)
-		GF_FREE (frame->local);
+	if (frame->local) {
+               local = frame->local;
+               frame->local = NULL;
+                
+       } 
+
 	LOCK_DESTROY (&frame->lock);
-	GF_FREE (frame);
+	mem_put (frame->root->pool->frame_mem_pool, frame);
+
+       if (local)
+               GF_FREE (local);
 }
 
 
@@ -144,6 +154,7 @@ static inline void
 STACK_DESTROY (call_stack_t *stack)
 {
         glusterfs_ctx_t *ctx = glusterfs_ctx_get ();
+        void *local = NULL;
 
         if (ctx && ctx->measure_latency) {
                 gettimeofday (&stack->frames.end, NULL);
@@ -157,8 +168,10 @@ STACK_DESTROY (call_stack_t *stack)
 	}
 	UNLOCK (&stack->pool->lock);
 
-	if (stack->frames.local)
-		GF_FREE (stack->frames.local);
+	if (stack->frames.local) {
+               local = stack->frames.local;
+		stack->frames.local = NULL;
+	}
 
 	LOCK_DESTROY (&stack->frames.lock);
 
@@ -169,7 +182,10 @@ STACK_DESTROY (call_stack_t *stack)
 
 		FRAME_DESTROY (stack->frames.next);
 	}
-	GF_FREE (stack);
+	mem_put (stack->pool->stack_mem_pool, stack);
+
+       if (local)
+               GF_FREE (local);
 }
 
 
@@ -181,9 +197,8 @@ STACK_DESTROY (call_stack_t *stack)
 	do {								\
 		call_frame_t *_new = NULL;				\
                 xlator_t     *old_THIS = NULL;                          \
-		                                                        \
-                _new = GF_CALLOC (1, sizeof (call_frame_t),             \
-                                gf_common_mt_call_frame_t);	        \
+                                                                        \
+		 _new = mem_get (frame->root->pool->frame_mem_pool);     \
                 if (!_new) {                                            \
                         gf_log ("stack", GF_LOG_ERROR, "alloc failed"); \
                         break;                                          \
@@ -220,8 +235,7 @@ STACK_DESTROY (call_stack_t *stack)
                 call_frame_t *_new = NULL;                              \
                 xlator_t     *old_THIS = NULL;                          \
                                                                         \
-                _new = GF_CALLOC (1, sizeof (call_frame_t),             \
-                                gf_common_mt_call_frame_t);	        \
+                _new = mem_get(frame->root->pool->frame_mem_pool);      \
                 if (!_new) {                                            \
                         gf_log ("stack", GF_LOG_ERROR, "alloc failed"); \
                         break;                                          \
@@ -316,8 +330,7 @@ copy_frame (call_frame_t *frame)
 		return NULL;
 	}
 
-	newstack = (void *) GF_CALLOC (1, sizeof (*newstack),
-                                       gf_common_mt_call_stack_t);
+	newstack = mem_get (frame->root->pool->stack_mem_pool);
         if (newstack == NULL) {
                 return NULL;
         }
@@ -360,7 +373,7 @@ create_frame (xlator_t *xl, call_pool_t *pool)
 		return NULL;
 	}
 
-	stack = GF_CALLOC (1, sizeof (*stack),gf_common_mt_call_stack_t);
+	stack = mem_get (pool->stack_mem_pool);
 	if (!stack)
 		return NULL;