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authorshishir gowda <shishirng@gluster.com>2011-08-10 16:58:38 +0530
committerVijay Bellur <vijay@gluster.com>2011-08-25 12:01:08 -0700
commitcd567c063ec25b280d3fb5686a69b068c2d6d6df (patch)
tree636ed83dc9b7e4d7e019dcfc59bbc722f066e2e6 /libglusterfs/src
parent9c68f3b53ffd27ea03e90da883c43e84bf94dd15 (diff)
mem-pool: Make mem-pool ptr avialable in ptr
The header of the ptr returned from mem-pool will now store the mem-pool ptr it belongs to. mem_put will now take only the pointer to be freed. Also, changing MALLOC call to GF_CALLOC in mem_get when we run out of entries in mem-pool. This also will have the header information saved. Change-Id: I3de182663a7f5b49c9e9425e9531775b70bdff67 BUG: 3390 Reviewed-on: http://review.gluster.com/205 Reviewed-by: Amar Tumballi <amar@gluster.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
Diffstat (limited to 'libglusterfs/src')
-rw-r--r--libglusterfs/src/call-stub.c2
-rw-r--r--libglusterfs/src/fd.c4
-rw-r--r--libglusterfs/src/inode.c8
-rw-r--r--libglusterfs/src/mem-pool.c42
-rw-r--r--libglusterfs/src/mem-pool.h2
-rw-r--r--libglusterfs/src/rbthash.c6
-rw-r--r--libglusterfs/src/stack.h4
7 files changed, 44 insertions, 24 deletions
diff --git a/libglusterfs/src/call-stub.c b/libglusterfs/src/call-stub.c
index fab368a6ddd..67543c64a13 100644
--- a/libglusterfs/src/call-stub.c
+++ b/libglusterfs/src/call-stub.c
@@ -3835,7 +3835,7 @@ call_stub_destroy (call_stub_t *stub)
}
stub->stub_mem_pool = NULL;
- mem_put (tmp_pool, stub);
+ mem_put (stub);
out:
tmp_pool = NULL;
diff --git a/libglusterfs/src/fd.c b/libglusterfs/src/fd.c
index 72df5e1d395..d6c4806a11a 100644
--- a/libglusterfs/src/fd.c
+++ b/libglusterfs/src/fd.c
@@ -428,7 +428,7 @@ fd_destroy (fd_t *fd)
GF_FREE (fd->_ctx);
inode_unref (fd->inode);
fd->inode = (inode_t *)0xaaaaaaaa;
- mem_put (tmp_pool,fd);
+ mem_put (fd);
tmp_pool = NULL;
out:
return;
@@ -500,7 +500,7 @@ fd_create (inode_t *inode, pid_t pid)
fd->_ctx = GF_CALLOC (1, (sizeof (struct _fd_ctx) * fd->xl_count),
gf_common_mt_fd_ctx);
if (!fd->_ctx) {
- mem_put (inode->table->fd_mem_pool, fd);
+ mem_put (fd);
fd = NULL;
goto out;
}
diff --git a/libglusterfs/src/inode.c b/libglusterfs/src/inode.c
index a3709cdb34d..1b43203113f 100644
--- a/libglusterfs/src/inode.c
+++ b/libglusterfs/src/inode.c
@@ -154,7 +154,7 @@ __dentry_unset (dentry_t *dentry)
dentry->parent = NULL;
}
- mem_put (tmp_pool, dentry);
+ mem_put (dentry);
tmp_pool = NULL;
}
@@ -336,7 +336,7 @@ __inode_destroy (inode_t *inode)
noctx:
LOCK_DESTROY (&inode->lock);
// memset (inode, 0xb, sizeof (*inode));
- mem_put (tmp_pool, inode);
+ mem_put (inode);
tmp_pool = NULL;
}
@@ -501,7 +501,7 @@ __dentry_create (inode_t *inode, inode_t *parent, const char *name)
newd->name = gf_strdup (name);
if (newd->name == NULL) {
- mem_put (parent->table->dentry_pool, newd);
+ mem_put (newd);
newd = NULL;
goto out;
}
@@ -547,7 +547,7 @@ __inode_create (inode_table_t *table)
if (newi->_ctx == NULL) {
LOCK_DESTROY (&newi->lock);
- mem_put (table->inode_pool, newi);
+ mem_put (newi);
newi = NULL;
goto out;
}
diff --git a/libglusterfs/src/mem-pool.c b/libglusterfs/src/mem-pool.c
index 5fdd5e5f2d1..f3dfc2149e4 100644
--- a/libglusterfs/src/mem-pool.c
+++ b/libglusterfs/src/mem-pool.c
@@ -24,10 +24,12 @@
#include <stdarg.h>
#define GF_MEM_POOL_LIST_BOUNDARY (sizeof(struct list_head))
-#define GF_MEM_POOL_PAD_BOUNDARY (GF_MEM_POOL_LIST_BOUNDARY + sizeof(int))
+#define GF_MEM_POOL_PTR (sizeof(struct mem_pool*))
+#define GF_MEM_POOL_PAD_BOUNDARY (GF_MEM_POOL_LIST_BOUNDARY + GF_MEM_POOL_PTR + sizeof(int))
#define mem_pool_chunkhead2ptr(head) ((head) + GF_MEM_POOL_PAD_BOUNDARY)
#define mem_pool_ptr2chunkhead(ptr) ((ptr) - GF_MEM_POOL_PAD_BOUNDARY)
#define is_mem_chunk_in_use(ptr) (*ptr == 1)
+#define mem_pool_from_ptr(ptr) ((ptr) + GF_MEM_POOL_LIST_BOUNDARY)
#define GF_MEM_HEADER_SIZE (4 + sizeof (size_t) + sizeof (xlator_t *) + 4 + 8)
#define GF_MEM_TRAILER_SIZE 8
@@ -379,6 +381,7 @@ mem_get (struct mem_pool *mem_pool)
struct list_head *list = NULL;
void *ptr = NULL;
int *in_use = NULL;
+ struct mem_pool **pool_ptr = NULL;
if (!mem_pool) {
gf_log ("mem-pool", GF_LOG_ERROR, "invalid argument");
@@ -395,7 +398,8 @@ mem_get (struct mem_pool *mem_pool)
mem_pool->cold_count--;
ptr = list;
- in_use = (ptr + GF_MEM_POOL_LIST_BOUNDARY);
+ in_use = (ptr + GF_MEM_POOL_LIST_BOUNDARY +
+ GF_MEM_POOL_PTR);
*in_use = 1;
goto fwd_addr_out;
@@ -421,17 +425,20 @@ mem_get (struct mem_pool *mem_pool)
* because it is too much work knowing that a better slab
* allocator is coming RSN.
*/
- ptr = MALLOC (mem_pool->real_sizeof_type);
+ ptr = GF_CALLOC (1, mem_pool->padded_sizeof_type,
+ gf_common_mt_mem_pool);
+ gf_log_callingfn ("mem-pool", GF_LOG_DEBUG, "Mem pool is full. "
+ "Callocing mem");
/* Memory coming from the heap need not be transformed from a
* chunkhead to a usable pointer since it is not coming from
* the pool.
*/
- goto unlocked_out;
}
fwd_addr_out:
+ pool_ptr = mem_pool_from_ptr (ptr);
+ *pool_ptr = (struct mem_pool *)mem_pool;
ptr = mem_pool_chunkhead2ptr (ptr);
-unlocked_out:
UNLOCK (&mem_pool->lock);
return ptr;
@@ -458,25 +465,39 @@ __is_member (struct mem_pool *pool, void *ptr)
void
-mem_put (struct mem_pool *pool, void *ptr)
+mem_put (void *ptr)
{
struct list_head *list = NULL;
int *in_use = NULL;
void *head = NULL;
+ struct mem_pool **tmp = NULL;
+ struct mem_pool *pool = NULL;
- if (!pool || !ptr) {
+ if (!ptr) {
gf_log ("mem-pool", GF_LOG_ERROR, "invalid argument");
return;
}
+ list = head = mem_pool_ptr2chunkhead (ptr);
+ tmp = mem_pool_from_ptr (head);
+ if (!tmp) {
+ gf_log ("mem-pool", GF_LOG_ERROR, "ptr header is corrupted");
+ return;
+ }
+
+ pool = *tmp;
+ if (!pool) {
+ gf_log ("mem-pool", GF_LOG_ERROR, "mem-pool ptr is NULL");
+ return;
+ }
LOCK (&pool->lock);
{
switch (__is_member (pool, ptr))
{
case 1:
- list = head = mem_pool_ptr2chunkhead (ptr);
- in_use = (head + GF_MEM_POOL_LIST_BOUNDARY);
+ in_use = (head + GF_MEM_POOL_LIST_BOUNDARY +
+ GF_MEM_POOL_PTR);
if (!is_mem_chunk_in_use(in_use)) {
gf_log_callingfn ("mem-pool", GF_LOG_CRITICAL,
"mem_put called on freed ptr %p of mem "
@@ -506,7 +527,7 @@ mem_put (struct mem_pool *pool, void *ptr)
* not have enough info to distinguish between the two
* situations.
*/
- FREE (ptr);
+ GF_FREE (list);
break;
default:
/* log error */
@@ -516,7 +537,6 @@ mem_put (struct mem_pool *pool, void *ptr)
UNLOCK (&pool->lock);
}
-
void
mem_pool_destroy (struct mem_pool *pool)
{
diff --git a/libglusterfs/src/mem-pool.h b/libglusterfs/src/mem-pool.h
index 7092ece30d2..98454c5be6f 100644
--- a/libglusterfs/src/mem-pool.h
+++ b/libglusterfs/src/mem-pool.h
@@ -152,7 +152,7 @@ mem_pool_new_fn (unsigned long sizeof_type, unsigned long count);
#define mem_pool_new(type,count) mem_pool_new_fn (sizeof(type), count)
-void mem_put (struct mem_pool *pool, void *ptr);
+void mem_put (void *ptr);
void *mem_get (struct mem_pool *pool);
void *mem_get0 (struct mem_pool *pool);
diff --git a/libglusterfs/src/rbthash.c b/libglusterfs/src/rbthash.c
index c134c3a0012..beda672d0f7 100644
--- a/libglusterfs/src/rbthash.c
+++ b/libglusterfs/src/rbthash.c
@@ -201,7 +201,7 @@ rbthash_init_entry (rbthash_table_t *tbl, void *data, void *key, int keylen)
ret = 0;
free_entry:
if (ret == -1) {
- mem_put (tbl->entrypool, entry);
+ mem_put (entry);
entry = NULL;
}
@@ -230,7 +230,7 @@ rbthash_deinit_entry (rbthash_table_t *tbl, rbthash_entry_t *entry)
}
UNLOCK (&tbl->tablelock);
- mem_put (tbl->entrypool, entry);
+ mem_put (entry);
}
return;
@@ -398,7 +398,7 @@ rbthash_remove (rbthash_table_t *tbl, void *key, int keylen)
}
UNLOCK (&tbl->tablelock);
- mem_put (tbl->entrypool, entry);
+ mem_put (entry);
return dataref;
}
diff --git a/libglusterfs/src/stack.h b/libglusterfs/src/stack.h
index 87c723112c6..455a360be23 100644
--- a/libglusterfs/src/stack.h
+++ b/libglusterfs/src/stack.h
@@ -149,7 +149,7 @@ FRAME_DESTROY (call_frame_t *frame)
}
LOCK_DESTROY (&frame->lock);
- mem_put (frame->root->pool->frame_mem_pool, frame);
+ mem_put (frame);
if (local)
GF_FREE (local);
@@ -178,7 +178,7 @@ STACK_DESTROY (call_stack_t *stack)
while (stack->frames.next) {
FRAME_DESTROY (stack->frames.next);
}
- mem_put (stack->pool->stack_mem_pool, stack);
+ mem_put (stack);
if (local)
GF_FREE (local);