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author | David S. Miller <davem@davemloft.net> | 2018-07-20 14:45:10 -0700 |
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committer | David S. Miller <davem@davemloft.net> | 2018-07-20 21:17:12 -0700 |
commit | c4c5551df136a7c4edd7c2f433d9a296b39826a2 (patch) | |
tree | a33d9f228efd34b0ad18e380385093405ef72d98 /arch/arm/mm/init.c | |
parent | 40999f11ce677ce3c5d0e8f5f76c40192a26b479 (diff) | |
parent | 48e5aee81f320da8abd1f09c8410f584315f59b0 (diff) | |
download | linux-c4c5551df136a7c4edd7c2f433d9a296b39826a2.tar.bz2 |
Merge ra.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux
All conflicts were trivial overlapping changes, so reasonably
easy to resolve.
Signed-off-by: David S. Miller <davem@davemloft.net>
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); } |