Messages in this thread Patch in this message | | | From | Yuntao Wang <> | Subject | [PATCH] kexec_core: fix the assignment to kimage->control_page | Date | Thu, 21 Dec 2023 12:23:08 +0800 |
| |
image->control_page represents the starting address for allocating the next control page, while hole_end represents the address of the last valid byte of the currently allocated control page.
Therefore, after successfully allocating a control page, image->control_page should be updated to `hole_end + 1`, rather than hole_end.
Signed-off-by: Yuntao Wang <ytcoode@gmail.com> --- kernel/kexec_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/kexec_core.c b/kernel/kexec_core.c index 2f039a7d9af9..a08031b57a61 100644 --- a/kernel/kexec_core.c +++ b/kernel/kexec_core.c @@ -457,7 +457,7 @@ static struct page *kimage_alloc_crash_control_pages(struct kimage *image, /* If I don't overlap any segments I have found my hole! */ if (i == image->nr_segments) { pages = pfn_to_page(hole_start >> PAGE_SHIFT); - image->control_page = hole_end; + image->control_page = hole_end + 1; break; } } -- 2.43.0
| |