[dpdk-dev] [PATCH v5 07/70] eal: make malloc free list remove public

[Anatoly Burakov]

We will need to be able to remove entries from free lists from
heaps during certain events, such as rollbacks, or when freeing
memory to the system (where a previously element disappears and
thus can no longer be in the free list).

Signed-off-by: Anatoly Burakov <anatoly.bura...@intel.com>
Tested-by: Santosh Shukla <santosh.shu...@caviumnetworks.com>
Tested-by: Hemant Agrawal <hemant.agra...@nxp.com>
---

Notes:
    v4: clarified commit message

 lib/librte_eal/common/malloc_elem.c | 12 ++++++------
 lib/librte_eal/common/malloc_elem.h |  3 +++
 2 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/lib/librte_eal/common/malloc_elem.c 
b/lib/librte_eal/common/malloc_elem.c
index 2291ee1..008f5a3 100644
--- a/lib/librte_eal/common/malloc_elem.c
+++ b/lib/librte_eal/common/malloc_elem.c
@@ -245,8 +245,8 @@ malloc_elem_free_list_insert(struct malloc_elem *elem)
 /*
  * Remove the specified element from its heap's free list.
  */
-static void
-elem_free_list_remove(struct malloc_elem *elem)
+void
+malloc_elem_free_list_remove(struct malloc_elem *elem)
 {
        LIST_REMOVE(elem, free_list);
 }
@@ -266,7 +266,7 @@ malloc_elem_alloc(struct malloc_elem *elem, size_t size, 
unsigned align,
        const size_t trailer_size = elem->size - old_elem_size - size -
                MALLOC_ELEM_OVERHEAD;
 
-       elem_free_list_remove(elem);
+       malloc_elem_free_list_remove(elem);
 
        if (trailer_size > MALLOC_ELEM_OVERHEAD + MIN_DATA_SIZE) {
                /* split it, too much free space after elem */
@@ -340,7 +340,7 @@ malloc_elem_join_adjacent_free(struct malloc_elem *elem)
                erase = RTE_PTR_SUB(elem->next, MALLOC_ELEM_TRAILER_LEN);
 
                /* remove from free list, join to this one */
-               elem_free_list_remove(elem->next);
+               malloc_elem_free_list_remove(elem->next);
                join_elem(elem, elem->next);
 
                /* erase header and trailer */
@@ -360,7 +360,7 @@ malloc_elem_join_adjacent_free(struct malloc_elem *elem)
                erase = RTE_PTR_SUB(elem, MALLOC_ELEM_TRAILER_LEN);
 
                /* remove from free list, join to this one */
-               elem_free_list_remove(elem->prev);
+               malloc_elem_free_list_remove(elem->prev);
 
                new_elem = elem->prev;
                join_elem(new_elem, elem);
@@ -423,7 +423,7 @@ malloc_elem_resize(struct malloc_elem *elem, size_t size)
        /* we now know the element fits, so remove from free list,
         * join the two
         */
-       elem_free_list_remove(elem->next);
+       malloc_elem_free_list_remove(elem->next);
        join_elem(elem, elem->next);
 
        if (elem->size - new_size >= MIN_DATA_SIZE + MALLOC_ELEM_OVERHEAD) {
diff --git a/lib/librte_eal/common/malloc_elem.h 
b/lib/librte_eal/common/malloc_elem.h
index 99921d2..46e2383 100644
--- a/lib/librte_eal/common/malloc_elem.h
+++ b/lib/librte_eal/common/malloc_elem.h
@@ -151,6 +151,9 @@ malloc_elem_join_adjacent_free(struct malloc_elem *elem);
 int
 malloc_elem_resize(struct malloc_elem *elem, size_t size);
 
+void
+malloc_elem_free_list_remove(struct malloc_elem *elem);
+
 /*
  * dump contents of malloc elem to a file.
  */
-- 
2.7.4