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| author | Ingo Molnar <mingo@elte.hu> | 2008-07-10 11:43:00 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-10 11:43:00 +0200 |
| commit | bac0c9103b31c3dd83ad9d731dd9834e2ba75e4f (patch) | |
| tree | 702dd6a7ce06d224d594c2293af546b11ac9f51b /arch/x86/mm/init_32.c | |
| parent | Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rol... (diff) | |
| parent | ftrace: prevent ftrace modifications while being kprobe'd, v2 (diff) | |
| download | linux-bac0c9103b31c3dd83ad9d731dd9834e2ba75e4f.tar.xz linux-bac0c9103b31c3dd83ad9d731dd9834e2ba75e4f.zip | |
Merge branch 'tracing/ftrace' into auto-ftrace-next
Diffstat (limited to 'arch/x86/mm/init_32.c')
| -rw-r--r-- | arch/x86/mm/init_32.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c index ec30d10154b6..f96eca21ad8f 100644 --- a/arch/x86/mm/init_32.c +++ b/arch/x86/mm/init_32.c @@ -710,6 +710,8 @@ void mark_rodata_ro(void) unsigned long start = PFN_ALIGN(_text); unsigned long size = PFN_ALIGN(_etext) - start; +#ifndef CONFIG_DYNAMIC_FTRACE + /* Dynamic tracing modifies the kernel text section */ set_pages_ro(virt_to_page(start), size >> PAGE_SHIFT); printk(KERN_INFO "Write protecting the kernel text: %luk\n", size >> 10); @@ -722,6 +724,8 @@ void mark_rodata_ro(void) printk(KERN_INFO "Testing CPA: write protecting again\n"); set_pages_ro(virt_to_page(start), size>>PAGE_SHIFT); #endif +#endif /* CONFIG_DYNAMIC_FTRACE */ + start += size; size = (unsigned long)__end_rodata - start; set_pages_ro(virt_to_page(start), size >> PAGE_SHIFT); |