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FROMLIST: scs: add accounting

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This change adds accounting for the memory allocated for shadow stacks.

Bug: 145210207
Change-Id: I51157fe0b23b4cb28bb33c86a5dfe3ac911296a4
(am from https://lore.kernel.org/patchwork/patch/1149055/)
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
This commit is contained in:
Sami Tolvanen 2018-05-23 13:27:08 -07:00 • committed by Alistair Delva
commit 9c265248fa
1 changed files with 42 additions and 0 deletions
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4
fs/proc/meminfo.c
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@ -104,6 +104,10 @@ static int meminfo_proc_show(struct seq_file *m, void *v)
global_node_page_state(NR_SLAB_UNRECLAIMABLE));
seq_printf(m, "KernelStack: %8lu kB\n",
global_zone_page_state(NR_KERNEL_STACK_KB));
#ifdef CONFIG_SHADOW_CALL_STACK
seq_printf(m, "ShadowCallStack:%8lu kB\n",
global_zone_page_state(NR_KERNEL_SCS_BYTES) / 1024);
#endif
show_val_kb(m, "PageTables: ",
global_zone_page_state(NR_PAGETABLE));
#ifdef CONFIG_QUICKLIST