Christophe Leroy <christophe.le...@csgroup.eu> writes: > Le 15/05/2022 à 12:28, Michael Ellerman a écrit : >> On Tue, 22 Mar 2022 16:40:17 +0100, Christophe Leroy wrote: >>> This series reduces by 70% the time required to activate >>> ftrace on an 8xx with CONFIG_STRICT_KERNEL_RWX. >>> >>> Measure is performed in function ftrace_replace_code() using mftb() >>> around the loop. >>> >>> With the series, >>> - Without CONFIG_STRICT_KERNEL_RWX, 416000 TB ticks are measured. >>> - With CONFIG_STRICT_KERNEL_RWX, 546000 TB ticks are measured. >>> >>> [...] >> >> Patches 1, 3 and 4 applied to powerpc/next. >> >> [1/4] powerpc/code-patching: Don't call is_vmalloc_or_module_addr() without >> CONFIG_MODULES >> >> https://git.kernel.org/powerpc/c/cb3ac45214c03852430979a43180371a44b74596 >> [3/4] powerpc/code-patching: Use jump_label for testing freed initmem >> >> https://git.kernel.org/powerpc/c/b033767848c4115e486b1a51946de3bee2ac0fa6 >> [4/4] powerpc/code-patching: Use jump_label to check if poking_init() is done >> >> https://git.kernel.org/powerpc/c/1751289268ef959db68b0b6f798d904d6403309a >> > > Patch 2 was the keystone of this series. What happened to it ?
It broke on 64-bit. I think I know why but I haven't had time to test it. Will try and get it fixed in the next day or two. cheers
