This set implements the second part of module type aware allocator (module_alloc_type), which was discussed in [1]. This part contains the interface of the new allocator, as well as changes in x86 code to use the new allocator (modules, BPF, ftrace, kprobe). The set does not contain a binpack allocator to enable sharing huge pages among different allocations. But this set defines the interface used by the binpack allocator. [2] has some discussion on different options of the binpack allocator. [1] https://lore.kernel.org/linux-mm/20221107223921.3451913-1-song@xxxxxxxxxx/ [2] https://lore.kernel.org/all/20230308094106.227365-1-rppt@xxxxxxxxxx/ Song Liu (3): module: Introduce module_alloc_type ftrace: Add swap_func to ftrace_process_locs() x86/module: Use module_alloc_type arch/x86/kernel/alternative.c | 37 ++++-- arch/x86/kernel/ftrace.c | 44 ++++--- arch/x86/kernel/kprobes/core.c | 8 +- arch/x86/kernel/module.c | 114 +++++++++++------ arch/x86/kernel/unwind_orc.c | 13 +- arch/x86/net/bpf_jit_comp.c | 22 +++- include/linux/ftrace.h | 2 + include/linux/module.h | 6 + include/linux/moduleloader.h | 75 ++++++++++++ init/main.c | 1 + kernel/bpf/bpf_struct_ops.c | 10 +- kernel/bpf/core.c | 26 ++-- kernel/bpf/trampoline.c | 6 +- kernel/kprobes.c | 6 +- kernel/module/internal.h | 3 + kernel/module/main.c | 217 +++++++++++++++++++++++++++++++-- kernel/module/strict_rwx.c | 4 + kernel/trace/ftrace.c | 13 +- 18 files changed, 493 insertions(+), 114 deletions(-) -- 2.34.1
