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author | Thomas Gleixner <tglx@linutronix.de> | 2018-07-20 00:11:52 +0300 |
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committer | Thomas Gleixner <tglx@linutronix.de> | 2018-07-20 00:11:52 +0300 |
commit | 73ab603f44149ff48889d5109ea9ab64bf38cc69 (patch) | |
tree | 9550d8fb31ddf6dffedf1f602ed44769e529c1d3 /arch/arm/mm/init.c | |
parent | 41afb1dfad4d6af0c716746f6a15f3230482955c (diff) | |
parent | fb7d1bcf1602b46f37ada72178516c01a250e434 (diff) | |
download | linux-73ab603f44149ff48889d5109ea9ab64bf38cc69.tar.xz |
Merge branch 'linus' into x86/timers
Pick up upstream changes to avoid conflicts
Diffstat (limited to 'arch/arm/mm/init.c')
-rw-r--r-- | arch/arm/mm/init.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c index c186474422f3..0cc8e04295a4 100644 --- a/arch/arm/mm/init.c +++ b/arch/arm/mm/init.c @@ -736,20 +736,29 @@ static int __mark_rodata_ro(void *unused) return 0; } +static int kernel_set_to_readonly __read_mostly; + void mark_rodata_ro(void) { + kernel_set_to_readonly = 1; stop_machine(__mark_rodata_ro, NULL, NULL); debug_checkwx(); } void set_kernel_text_rw(void) { + if (!kernel_set_to_readonly) + return; + set_section_perms(ro_perms, ARRAY_SIZE(ro_perms), false, current->active_mm); } void set_kernel_text_ro(void) { + if (!kernel_set_to_readonly) + return; + set_section_perms(ro_perms, ARRAY_SIZE(ro_perms), true, current->active_mm); } |