riscv: set the permission of vdso_data to read-only

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The original vdso_data page is empty, so the permission of the vdso_data
page can be the same with the vdso text page. After introducing the vDSO
common flow, the vdso_data is not empty and the permission should be
changed to read-only.

Signed-off-by: Vincent Chen <vincent.chen@sifive.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>

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Vincent Chen 2020-06-09 22:14:49 +08:00 • committed by Palmer Dabbelt

parent ad5d1122b8

commit 01f76386b0

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1 changed files with 14 additions and 2 deletions

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16

arch/riscv/kernel/vdso.c

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