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firmware: Change the page arrary alloc to vmalloc

Browse source 
No need to use use continuous memory, it may be fail
when memory deeply fragmented.

Signed-off-by: Chen Feng <puck.chen@hisilicon.com>
Signed-off-by: Xia Qing <saberlily.xia@hisilicon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Chen Feng 2015-12-16 17:03:15 +08:00 committed by Greg Kroah-Hartman
parent 6a4f555aa1
commit 10a3fbf18d
1 changed files with 4 additions and 5 deletions
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9
drivers/base/firmware_class.c
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@ -257,7 +257,7 @@ static void __fw_free_buf(struct kref *ref)
vunmap(buf->data);
for (i = 0; i < buf->nr_pages; i++)
__free_page(buf->pages[i]);
kfree(buf->pages);
vfree(buf->pages);
} else
#endif
vfree(buf->data);
@ -660,7 +660,7 @@ static ssize_t firmware_loading_store(struct device *dev,
if (!test_bit(FW_STATUS_DONE, &fw_buf->status)) {
for (i = 0; i < fw_buf->nr_pages; i++)
__free_page(fw_buf->pages[i]);
kfree(fw_buf->pages);
vfree(fw_buf->pages);
fw_buf->pages = NULL;
fw_buf->page_array_size = 0;
fw_buf->nr_pages = 0;
@ -770,8 +770,7 @@ static int fw_realloc_buffer(struct firmware_priv *fw_priv, int min_size)
buf->page_array_size * 2);
struct page **new_pages;
new_pages = kmalloc(new_array_size * sizeof(void *),
GFP_KERNEL);
new_pages = vmalloc(new_array_size * sizeof(void *));
if (!new_pages) {
fw_load_abort(fw_priv);
return -ENOMEM;
@ -780,7 +779,7 @@ static int fw_realloc_buffer(struct firmware_priv *fw_priv, int min_size)
buf->page_array_size * sizeof(void *));
memset(&new_pages[buf->page_array_size], 0, sizeof(void *) *
(new_array_size - buf->page_array_size));
kfree(buf->pages);
vfree(buf->pages);
buf->pages = new_pages;
buf->page_array_size = new_array_size;
}