[PATCH v2 06/12] mm/execmem: introduce execmem_data_alloc()
    Steven Rostedt 
    rostedt at goodmis.org
       
    Wed Jun 21 00:51:04 AEST 2023
    
    
  
On Mon, 19 Jun 2023 02:43:58 +0200
Thomas Gleixner <tglx at linutronix.de> wrote:
> Now you might argue that it _is_ a "hotpath" due to the BPF usage, but
> then even more so as any intermediate wrapper which converts from one
> data representation to another data representation is not going to
> increase performance, right?
Just as a side note. BPF can not attach its return calling code to
functions that have more than 6 parameters (3 on 32 bit x86), because of
the way BPF return path trampoline works. It is a requirement that all
parameters live in registers, and none on the stack.
-- Steve
    
    
More information about the Linuxppc-dev
mailing list