[PATCH] MIPS: kernel: Fix reservation for VDSO area

[Thomas Bogendoerfer]

Commit 69896119dc9d ("MIPS: vdso: Switch to generic storage
implementation") switches to a generic vdso storage, but missed to adapt
the max stack top by the number of generic VDSO pages.

Fixes: 69896119dc9d ("MIPS: vdso: Switch to generic storage implementation")
Signed-off-by: Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx>
---
 arch/mips/kernel/process.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
index 29191fa1801e..9eb5b26d4b5f 100644
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -693,6 +693,7 @@ unsigned long mips_stack_top(void)
 	if (current->thread.abi) {
 		top -= PAGE_ALIGN(current->thread.abi->vdso->size);
 		top -= PAGE_SIZE;
+		top -= VDSO_NR_PAGES * PAGE_SIZE;
 		top -= mips_gic_present() ? PAGE_SIZE : 0;
 
 		/* Space to randomize the VDSO base */
-- 
2.43.0