TWxSoftware/twx-linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

dma-buf: rk_heaps: rk-cma-heap replace orig_alloc by dmabuf->name

Browse Source 
For dmabuf, owner has set a name for the buffer, use the dmabuf->name to
replace orig_alloc to save several memory.

Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com>
Change-Id: Ifad14ed886580d2a9f3000900e1849b0b5a3858e
This commit is contained in:
Jianqun Xu
2022-04-25 14:23:13 +08:00
committed by Tao Huang
parent b0cf5382ef
commit 6cc665a643
1 changed files with 2 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/dma-buf/rk_heaps/rk-cma-heap.c
+2 -15
View File
@@ -284,12 +284,11 @@ static void rk_cma_heap_remove_dmabuf_list(struct dma_buf *dmabuf)
list_for_each_entry(buf, &heap->dmabuf_list, node) {
if (buf->dmabuf == dmabuf) {
dma_heap_print("<%s> free dmabuf<ino-%ld>@[%pa-%pa] to heap-<%s>\n",
buf->orig_alloc,
dmabuf->name,
dmabuf->file->f_inode->i_ino,
&buf->start, &buf->end,
rk_dma_heap_get_name(heap));
list_del(&buf->node);
kfree(buf->orig_alloc);
kfree(buf);
break;
}
@@ -303,7 +302,6 @@ static int rk_cma_heap_add_dmabuf_list(struct dma_buf *dmabuf, const char *name)
struct rk_cma_heap_buffer *buffer = dmabuf->priv;
struct rk_cma_heap *cma_heap = buffer->heap;
struct rk_dma_heap *heap = cma_heap->heap;
const char *name_tmp;
buf = kzalloc(sizeof(*buf), GFP_KERNEL);
if (!buf)
@@ -311,17 +309,6 @@ static int rk_cma_heap_add_dmabuf_list(struct dma_buf *dmabuf, const char *name)
INIT_LIST_HEAD(&buf->node);
buf->dmabuf = dmabuf;
if (!name)
name_tmp = current->comm;
else
name_tmp = name;
buf->orig_alloc = kstrndup(name_tmp, RK_DMA_HEAP_NAME_LEN, GFP_KERNEL);
if (!buf->orig_alloc) {
kfree(buf);
return -ENOMEM;
}
buf->start = buffer->phys;
buf->end = buf->start + buffer->len - 1;
mutex_lock(&heap->dmabuf_lock);
@@ -329,7 +316,7 @@ static int rk_cma_heap_add_dmabuf_list(struct dma_buf *dmabuf, const char *name)
mutex_unlock(&heap->dmabuf_lock);
dma_heap_print("<%s> alloc dmabuf<ino-%ld>@[%pa-%pa] from heap-<%s>\n",
buf->orig_alloc, dmabuf->file->f_inode->i_ino,
dmabuf->name, dmabuf->file->f_inode->i_ino,
&buf->start, &buf->end, rk_dma_heap_get_name(heap));
return 0;