On Thu, May 14, 2026 at 10:26:24PM +0000, Pasha Tatashin wrote: > Currently, the number of LUO sessions is limited by a fixed number of > pre-allocated pages for serialization (16 pages, allowing for ~819 > sessions). > > This limitation is problematic if LUO is used to support things such as > systemd file descriptor store, and would be used not just as VM memory > but to save other states on the machine. > > Remove this limit by transitioning to a linked-block approach for > session metadata serialization. Instead of a single contiguous block, > session metadata is now stored in a chain of 16-page blocks. Each block > starts with a header containing the physical address of the next block > and the number of session entries in the current block. > > Signed-off-by: Pasha Tatashin <[email protected]>
Acked-by: Mike Rapoport (Microsoft) <[email protected]> > --- > include/linux/kho/abi/luo.h | 24 +------- > kernel/liveupdate/luo_session.c | 105 +++++++++++++++----------------- > 2 files changed, 50 insertions(+), 79 deletions(-) -- Sincerely yours, Mike.
