On 09/28/18 at 03:48pm, AKASHI Takahiro wrote:
> In kdump case, there exists only one dedicated memblock region as usable
> memory (crashk_res). With this patch, kexec_walk_memblock() runs a given
> callback function on this region.
>
> Cosmetic change: 0 to MEMBLOCK_NONE at for_each_free_mem_range*()
>
> Signed-off-by: AKASHI Takahiro <takahiro.akashi@xxxxxxxxxx>
> Cc: Dave Young <dyoung@xxxxxxxxxx>
> Cc: Vivek Goyal <vgoyal@xxxxxxxxxx>
> Cc: Baoquan He <bhe@xxxxxxxxxx>
Acked-by: Dave Young <dyoung@xxxxxxxxxx>
> ---
> kernel/kexec_file.c | 9 ++++++---
> 1 file changed, 6 insertions(+), 3 deletions(-)
>
> diff --git a/kernel/kexec_file.c b/kernel/kexec_file.c
> index 370d7eab49fe..2f615a7968dd 100644
> --- a/kernel/kexec_file.c
> +++ b/kernel/kexec_file.c
> @@ -511,8 +511,11 @@ static int kexec_walk_memblock(struct kexec_buf *kbuf,
> phys_addr_t mstart, mend;
> struct resource res = { };
>
> + if (kbuf->image->type == KEXEC_TYPE_CRASH)
> + return func(&crashk_res, kbuf);
> +
> if (kbuf->top_down) {
> - for_each_free_mem_range_reverse(i, NUMA_NO_NODE, 0,
> + for_each_free_mem_range_reverse(i, NUMA_NO_NODE, MEMBLOCK_NONE,
> &mstart, &mend, NULL) {
> /*
> * In memblock, end points to the first byte after the
> @@ -526,8 +529,8 @@ static int kexec_walk_memblock(struct kexec_buf *kbuf,
> break;
> }
> } else {
> - for_each_free_mem_range(i, NUMA_NO_NODE, 0, &mstart, &mend,
> - NULL) {
> + for_each_free_mem_range(i, NUMA_NO_NODE, MEMBLOCK_NONE,
> + &mstart, &mend, NULL) {
> /*
> * In memblock, end points to the first byte after the
> * range while in kexec, end points to the last byte
> --
> 2.19.0
>
>
> _______________________________________________
> kexec mailing list
> kexec@xxxxxxxxxxxxxxxxxxx
> http://lists.infradead.org/mailman/listinfo/kexec
Thanks
Dave
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