Commit 2a912d44 authored by Joel Granados's avatar Joel Granados Committed by Andrew Morton
Browse files

alloc_tag: move memory_allocation_profiling_sysctls into .rodata 

Remove the change in file mode permissions done before initializing the
sysctl.  It is not necessary as the writing of the kernel variable will be
blocked by the proc_mem_profiling_handler when writing is disallowed (also
controlled by mem_profiling_support).

Link: https://lkml.kernel.org/r/20251215-jag-alloc_tag_const-v1-1-35ea56a1ce13@kernel.org


Signed-off-by: default avatarJoel Granados <joel.granados@kernel.org>
Acked-by: default avatarSuren Baghdasaryan <surenb@google.com>
Cc: Kent Overstreet <kent.overstreet@linux.dev>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent 817383b3

lib/alloc_tag.c

+1 −4
Original line number Diff line number Diff line
@@ -783,7 +783,7 @@ static int proc_mem_profiling_handler(const struct ctl_table *table, int write, 
}





static struct ctl_table memory_allocation_profiling_sysctls[] = {

static const struct ctl_table memory_allocation_profiling_sysctls[] = {

	{

		.procname	= "mem_profiling",

		.data		= &mem_alloc_profiling_key,
@@ -798,9 +798,6 @@ static struct ctl_table memory_allocation_profiling_sysctls[] = { 


static void __init sysctl_init(void)

{

	if (!mem_profiling_support)

		memory_allocation_profiling_sysctls[0].mode = 0444;



	register_sysctl_init("vm", memory_allocation_profiling_sysctls);

}

#else /* CONFIG_SYSCTL */