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Diffstat (limited to 'libglusterfs/src/mem-pool.c')
-rw-r--r--libglusterfs/src/mem-pool.c101
1 files changed, 59 insertions, 42 deletions
diff --git a/libglusterfs/src/mem-pool.c b/libglusterfs/src/mem-pool.c
index 0f9d792c0f1..7d95364c4b2 100644
--- a/libglusterfs/src/mem-pool.c
+++ b/libglusterfs/src/mem-pool.c
@@ -59,30 +59,32 @@ gf_mem_set_acct_info (xlator_t *xl, char **alloc_ptr, size_t size,
GF_ASSERT (xl != NULL);
- GF_ASSERT (xl->mem_acct.rec != NULL);
+ GF_ASSERT (xl->mem_acct != NULL);
- GF_ASSERT (type <= xl->mem_acct.num_types);
+ GF_ASSERT (type <= xl->mem_acct->num_types);
- LOCK(&xl->mem_acct.rec[type].lock);
+ LOCK(&xl->mem_acct->rec[type].lock);
{
- if (!xl->mem_acct.rec[type].typestr)
- xl->mem_acct.rec[type].typestr = typestr;
- xl->mem_acct.rec[type].size += size;
- xl->mem_acct.rec[type].num_allocs++;
- xl->mem_acct.rec[type].total_allocs++;
- xl->mem_acct.rec[type].max_size =
- max (xl->mem_acct.rec[type].max_size,
- xl->mem_acct.rec[type].size);
- xl->mem_acct.rec[type].max_num_allocs =
- max (xl->mem_acct.rec[type].max_num_allocs,
- xl->mem_acct.rec[type].num_allocs);
+ if (!xl->mem_acct->rec[type].typestr)
+ xl->mem_acct->rec[type].typestr = typestr;
+ xl->mem_acct->rec[type].size += size;
+ xl->mem_acct->rec[type].num_allocs++;
+ xl->mem_acct->rec[type].total_allocs++;
+ xl->mem_acct->rec[type].max_size =
+ max (xl->mem_acct->rec[type].max_size,
+ xl->mem_acct->rec[type].size);
+ xl->mem_acct->rec[type].max_num_allocs =
+ max (xl->mem_acct->rec[type].max_num_allocs,
+ xl->mem_acct->rec[type].num_allocs);
}
- UNLOCK(&xl->mem_acct.rec[type].lock);
+ UNLOCK(&xl->mem_acct->rec[type].lock);
+
+ INCREMENT_ATOMIC (xl->mem_acct->lock, xl->mem_acct->refcnt);
header = (struct mem_header *) ptr;
header->type = type;
header->size = size;
- header->xlator = xl;
+ header->mem_acct = xl->mem_acct;
header->magic = GF_MEM_HEADER_MAGIC;
ptr += sizeof (struct mem_header);
@@ -149,27 +151,23 @@ __gf_malloc (size_t size, uint32_t type, const char *typestr)
void *
__gf_realloc (void *ptr, size_t size)
{
- uint32_t type = 0;
size_t tot_size = 0;
- xlator_t *xl = NULL;
char *new_ptr;
- struct mem_header *header = NULL;
+ struct mem_header *old_header = NULL;
+ struct mem_header *new_header = NULL;
+ struct mem_header tmp_header;
if (!THIS->ctx->mem_acct_enable)
return REALLOC (ptr, size);
REQUIRE(NULL != ptr);
- tot_size = size + GF_MEM_HEADER_SIZE + GF_MEM_TRAILER_SIZE;
-
- header = (struct mem_header *) (ptr - GF_MEM_HEADER_SIZE);
-
- GF_ASSERT (header->magic == GF_MEM_HEADER_MAGIC);
+ old_header = (struct mem_header *) (ptr - GF_MEM_HEADER_SIZE);
+ GF_ASSERT (old_header->magic == GF_MEM_HEADER_MAGIC);
+ tmp_header = *old_header;
- xl = (xlator_t *) header->xlator;
- type = header->type;
-
- new_ptr = realloc (header, tot_size);
+ tot_size = size + GF_MEM_HEADER_SIZE + GF_MEM_TRAILER_SIZE;
+ new_ptr = realloc (old_header, tot_size);
if (!new_ptr) {
gf_msg_nomem ("", GF_LOG_ALERT, tot_size);
return NULL;
@@ -181,8 +179,25 @@ __gf_realloc (void *ptr, size_t size)
* in ptr, but the compiler warnings complained
* about the casting to and forth from void ** to
* char **.
- */
+ * TBD: it would be nice to adjust the memory accounting info here,
+ * but calling gf_mem_set_acct_info here is wrong because it bumps
+ * up counts as though this is a new allocation - which it's not.
+ * The consequence of doing nothing here is only that the sizes will be
+ * wrong, but at least the counts won't be.
+ uint32_t type = 0;
+ xlator_t *xl = NULL;
+ type = header->type;
+ xl = (xlator_t *) header->xlator;
gf_mem_set_acct_info (xl, &new_ptr, size, type, NULL);
+ */
+
+ new_header = (struct mem_header *) new_ptr;
+ *new_header = tmp_header;
+ new_header->size = size;
+
+ new_ptr += sizeof (struct mem_header);
+ /* data follows in this gap of 'size' bytes */
+ *(uint32_t *) (new_ptr + size) = GF_MEM_TRAILER_MAGIC;
return (void *)new_ptr;
}
@@ -235,7 +250,7 @@ __gf_mem_invalidate (void *ptr)
struct mem_invalid inval = {
.magic = GF_MEM_INVALID_MAGIC,
- .xlator = header->xlator,
+ .mem_acct = header->mem_acct,
.type = header->type,
.size = header->size,
.baseaddr = ptr + GF_MEM_HEADER_SIZE,
@@ -271,7 +286,7 @@ void
__gf_free (void *free_ptr)
{
void *ptr = NULL;
- xlator_t *xl = NULL;
+ struct mem_acct *mem_acct;
struct mem_header *header = NULL;
if (!THIS->ctx->mem_acct_enable) {
@@ -288,11 +303,8 @@ __gf_free (void *free_ptr)
//Possible corruption, assert here
GF_ASSERT (GF_MEM_HEADER_MAGIC == header->magic);
- //gf_free expects xl to be available
- GF_ASSERT (header->xlator != NULL);
- xl = header->xlator;
-
- if (!xl->mem_acct.rec) {
+ mem_acct = header->mem_acct;
+ if (!mem_acct) {
goto free;
}
@@ -300,16 +312,21 @@ __gf_free (void *free_ptr)
GF_ASSERT (GF_MEM_TRAILER_MAGIC ==
*(uint32_t *)((char *)free_ptr + header->size));
- LOCK (&xl->mem_acct.rec[header->type].lock);
+ LOCK (&mem_acct->rec[header->type].lock);
{
- xl->mem_acct.rec[header->type].size -= header->size;
- xl->mem_acct.rec[header->type].num_allocs--;
+ mem_acct->rec[header->type].size -= header->size;
+ mem_acct->rec[header->type].num_allocs--;
/* If all the instaces are freed up then ensure typestr is
* set to NULL */
- if (!xl->mem_acct.rec[header->type].num_allocs)
- xl->mem_acct.rec[header->type].typestr = NULL;
+ if (!mem_acct->rec[header->type].num_allocs)
+ mem_acct->rec[header->type].typestr = NULL;
}
- UNLOCK (&xl->mem_acct.rec[header->type].lock);
+ UNLOCK (&mem_acct->rec[header->type].lock);
+
+ if (DECREMENT_ATOMIC (mem_acct->lock, mem_acct->refcnt) == 0) {
+ FREE (mem_acct);
+ }
+
free:
#ifdef DEBUG
__gf_mem_invalidate (ptr);
generated by cgit (git 2.34.1) at 2025-11-04 07:53:52 +0000