* [PATCH] liveupdate: kho: Enable KHO by default
@ 2025-11-10 18:07 Pasha Tatashin
2025-11-10 18:34 ` Mike Rapoport
0 siblings, 1 reply; 3+ messages in thread
From: Pasha Tatashin @ 2025-11-10 18:07 UTC (permalink / raw)
To: akpm, pasha.tatashin, rppt, graf, pratyush, linux-kernel, kexec,
linux-mm
Upcoming LUO requires KHO for its operations, the requirement to place
both KHO=on and liveupdate=on becomes redundant. Set KHO to be enabled
by default.
Signed-off-by: Pasha Tatashin <pasha.tatashin@soleen.com>
---
kernel/liveupdate/kexec_handover.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/liveupdate/kexec_handover.c b/kernel/liveupdate/kexec_handover.c
index b54ca665e005..568cd9fe9aca 100644
--- a/kernel/liveupdate/kexec_handover.c
+++ b/kernel/liveupdate/kexec_handover.c
@@ -51,7 +51,7 @@ union kho_page_info {
static_assert(sizeof(union kho_page_info) == sizeof(((struct page *)0)->private));
-static bool kho_enable __ro_after_init;
+static bool kho_enable __ro_after_init = true;
bool kho_is_enabled(void)
{
base-commit: ab40c92c74c6b0c611c89516794502b3a3173966
--
2.51.2.1041.gc1ab5b90ca-goog
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] liveupdate: kho: Enable KHO by default
2025-11-10 18:07 [PATCH] liveupdate: kho: Enable KHO by default Pasha Tatashin
@ 2025-11-10 18:34 ` Mike Rapoport
2025-11-11 13:03 ` Pratyush Yadav
0 siblings, 1 reply; 3+ messages in thread
From: Mike Rapoport @ 2025-11-10 18:34 UTC (permalink / raw)
To: Pasha Tatashin; +Cc: akpm, graf, pratyush, linux-kernel, kexec, linux-mm
On Mon, Nov 10, 2025 at 01:07:15PM -0500, Pasha Tatashin wrote:
>
> Subject: [PATCH] liveupdate: kho: Enable KHO by default
No need to put a directory (liveupdate) prefix here. "kho: " is enough.
With that fixed
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
> Upcoming LUO requires KHO for its operations, the requirement to place
> both KHO=on and liveupdate=on becomes redundant. Set KHO to be enabled
> by default.
>
> Signed-off-by: Pasha Tatashin <pasha.tatashin@soleen.com>
> ---
> kernel/liveupdate/kexec_handover.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/kernel/liveupdate/kexec_handover.c b/kernel/liveupdate/kexec_handover.c
> index b54ca665e005..568cd9fe9aca 100644
> --- a/kernel/liveupdate/kexec_handover.c
> +++ b/kernel/liveupdate/kexec_handover.c
> @@ -51,7 +51,7 @@ union kho_page_info {
>
> static_assert(sizeof(union kho_page_info) == sizeof(((struct page *)0)->private));
>
> -static bool kho_enable __ro_after_init;
> +static bool kho_enable __ro_after_init = true;
>
> bool kho_is_enabled(void)
> {
>
> base-commit: ab40c92c74c6b0c611c89516794502b3a3173966
> --
> 2.51.2.1041.gc1ab5b90ca-goog
>
--
Sincerely yours,
Mike.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] liveupdate: kho: Enable KHO by default
2025-11-10 18:34 ` Mike Rapoport
@ 2025-11-11 13:03 ` Pratyush Yadav
0 siblings, 0 replies; 3+ messages in thread
From: Pratyush Yadav @ 2025-11-11 13:03 UTC (permalink / raw)
To: Mike Rapoport
Cc: Pasha Tatashin, akpm, graf, pratyush, linux-kernel, kexec,
linux-mm
On Mon, Nov 10 2025, Mike Rapoport wrote:
> On Mon, Nov 10, 2025 at 01:07:15PM -0500, Pasha Tatashin wrote:
>>
>> Subject: [PATCH] liveupdate: kho: Enable KHO by default
>
> No need to put a directory (liveupdate) prefix here. "kho: " is enough.
+1
>
> With that fixed
>
> Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Pratyush Yadav <pratyush@kernel.org>
>
>> Upcoming LUO requires KHO for its operations, the requirement to place
>> both KHO=on and liveupdate=on becomes redundant. Set KHO to be enabled
>> by default.
>>
>> Signed-off-by: Pasha Tatashin <pasha.tatashin@soleen.com>
>> ---
>> kernel/liveupdate/kexec_handover.c | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/kernel/liveupdate/kexec_handover.c b/kernel/liveupdate/kexec_handover.c
>> index b54ca665e005..568cd9fe9aca 100644
>> --- a/kernel/liveupdate/kexec_handover.c
>> +++ b/kernel/liveupdate/kexec_handover.c
>> @@ -51,7 +51,7 @@ union kho_page_info {
>>
>> static_assert(sizeof(union kho_page_info) == sizeof(((struct page *)0)->private));
>>
>> -static bool kho_enable __ro_after_init;
>> +static bool kho_enable __ro_after_init = true;
>>
>> bool kho_is_enabled(void)
>> {
>>
>> base-commit: ab40c92c74c6b0c611c89516794502b3a3173966
>> --
>> 2.51.2.1041.gc1ab5b90ca-goog
>>
--
Regards,
Pratyush Yadav
^ permalink raw reply [flat|nested] 3+ messages in thread
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2025-11-10 18:07 [PATCH] liveupdate: kho: Enable KHO by default Pasha Tatashin
2025-11-10 18:34 ` Mike Rapoport
2025-11-11 13:03 ` Pratyush Yadav
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