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From: Anatoly Burakov <anatoly.burakov@intel.com>
To: dev@dpdk.org
Cc: keith.wiles@intel.com, jianfeng.tan@intel.com, andras.kovacs@ericsson.com,
laszlo.vadkeri@ericsson.com, benjamin.walker@intel.com,
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Date: Sun, 8 Apr 2018 21:17:39 +0100
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Subject: [dpdk-dev] [PATCH v4 06/70] eal: make
malloc_elem_join_adjacent_free public
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Down the line, we will need to join free segments to determine
whether the resulting contiguous free space is bigger than a
page size, allowing to free some memory back to the system.
Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
---
lib/librte_eal/common/malloc_elem.c | 6 +++---
lib/librte_eal/common/malloc_elem.h | 3 +++
2 files changed, 6 insertions(+), 3 deletions(-)
diff --git a/lib/librte_eal/common/malloc_elem.c b/lib/librte_eal/common/malloc_elem.c
index e02ed88..2291ee1 100644
--- a/lib/librte_eal/common/malloc_elem.c
+++ b/lib/librte_eal/common/malloc_elem.c
@@ -325,8 +325,8 @@ join_elem(struct malloc_elem *elem1, struct malloc_elem *elem2)
elem1->next = next;
}
-static struct malloc_elem *
-elem_join_adjacent_free(struct malloc_elem *elem)
+struct malloc_elem *
+malloc_elem_join_adjacent_free(struct malloc_elem *elem)
{
/*
* check if next element exists, is adjacent and is free, if so join
@@ -388,7 +388,7 @@ malloc_elem_free(struct malloc_elem *elem)
ptr = RTE_PTR_ADD(elem, sizeof(*elem));
data_len = elem->size - MALLOC_ELEM_OVERHEAD;
- elem = elem_join_adjacent_free(elem);
+ elem = malloc_elem_join_adjacent_free(elem);
malloc_elem_free_list_insert(elem);
diff --git a/lib/librte_eal/common/malloc_elem.h b/lib/librte_eal/common/malloc_elem.h
index 40e8eb5..99921d2 100644
--- a/lib/librte_eal/common/malloc_elem.h
+++ b/lib/librte_eal/common/malloc_elem.h
@@ -141,6 +141,9 @@ malloc_elem_alloc(struct malloc_elem *elem, size_t size,
int
malloc_elem_free(struct malloc_elem *elem);
+struct malloc_elem *
+malloc_elem_join_adjacent_free(struct malloc_elem *elem);
+
/*
* attempt to resize a malloc_elem by expanding into any free space
* immediately after it in memory.
--
2.7.4