Re: [PATCH v5 02/22] liveupdate: luo_core: integrate with KHO
From: Pasha Tatashin <pasha.tatashin@soleen.com>
Date: 2025-11-11 20:43:03
Also in:
linux-doc, linux-fsdevel, linux-mm, lkml
From: Pasha Tatashin <pasha.tatashin@soleen.com>
Date: 2025-11-11 20:43:03
Also in:
linux-doc, linux-fsdevel, linux-mm, lkml
On Tue, Nov 11, 2025 at 3:39 PM Pasha Tatashin [off-list ref] wrote:
quoted
quoted
kho_memory_init(); + /* Live Update should follow right after KHO is initialized */ + liveupdate_init(); +Why do you think it should be immediately after kho_memory_init()? Any reason this can't be called from start_kernel() or even later as an early_initcall() or core_initall()?Unfortunately, no, even here it is too late, and we might need to find a way to move the kho_init/liveupdate_init earlier. We must be able to preserve HugeTLB pages, and those are reserved earlier in boot.
Just to clarify: liveupdate_init() is needed to start using: liveupdate_flb_incoming_* API, and FLB data is needed during HugeTLB reservation. Pasha