diff options
| author |   Christophe Leroy <christophe.leroy@csgroup.eu> | 2024-12-14 12:09:31 +0100 |
|---|---|---|
| committer |   Madhavan Srinivasan <maddy@linux.ibm.com> | 2024-12-18 13:46:38 +0530 |
| commit | 9fa9712644e04c4fd4de7e2d999edde3c9316823 (patch) | |
| tree | eb77dd80d269acb4f02e68a1a005e454ca9be2c0 | |
| parent | powerpc/64: Use get_user() in start_thread() (diff) | |
| download | wireguard-linux-9fa9712644e04c4fd4de7e2d999edde3c9316823.tar.xz wireguard-linux-9fa9712644e04c4fd4de7e2d999edde3c9316823.zip | |
powerpc/vdso: Mark the vDSO code read-only after init
VDSO text is fixed-up during init so it can't be const,
but it can be read-only after init.
Do the same as x86 in commit 018ef8dcf3de ("x86/vdso: Mark the vDSO
code read-only after init") and arm in commit 11bf9b865898 ("ARM/vdso:
Mark the vDSO code read-only after init"), move it into
ro_after_init section.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/e9892d288b646cbdfeef0b2b73edbaf6d3c6cabe.1734174500.git.christophe.leroy@csgroup.eu
Diffstat (limited to '')
| -rw-r--r-- | arch/powerpc/kernel/vdso32_wrapper.S | 2 | ||||
| -rw-r--r-- | arch/powerpc/kernel/vdso64_wrapper.S | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/vdso32_wrapper.S b/arch/powerpc/kernel/vdso32_wrapper.S index 10f92f265d51..20bca3548b44 100644 --- a/arch/powerpc/kernel/vdso32_wrapper.S +++ b/arch/powerpc/kernel/vdso32_wrapper.S @@ -2,7 +2,7 @@ #include <linux/linkage.h> #include <asm/page.h> - __PAGE_ALIGNED_DATA + .section ".data..ro_after_init", "aw" .globl vdso32_start, vdso32_end .balign PAGE_SIZE diff --git a/arch/powerpc/kernel/vdso64_wrapper.S b/arch/powerpc/kernel/vdso64_wrapper.S index 839d1a61411d..1912936fa227 100644 --- a/arch/powerpc/kernel/vdso64_wrapper.S +++ b/arch/powerpc/kernel/vdso64_wrapper.S @@ -2,7 +2,7 @@ #include <linux/linkage.h> #include <asm/page.h> - __PAGE_ALIGNED_DATA + .section ".data..ro_after_init", "aw" .globl vdso64_start, vdso64_end .balign PAGE_SIZE |