Revert "drivers: hv: Turn off write permission on the hypercall page"

BugLink: http://bugs.launchpad.net/bugs/1676635
This reverts commit 71a5a0559d132a6bb20e63e8e9c62fbd22666137.

Signed-off-by: Tim Gardner <tim.gardner@canonical.com>

diff --git a/drivers/hv/hv.c b/drivers/hv/hv.c
index 2f5a4c08466da86c9482fc1f2a4a854b7d2b6844..43e17c71f96df8bf6081b2c4b43ec501ee31fe8b 100644 (file)
--- a/drivers/hv/hv.c
+++ b/drivers/hv/hv.c
@@ -228,7 +228,7 @@ int hv_init(void)
        /* See if the hypercall page is already set */
        rdmsrl(HV_X64_MSR_HYPERCALL, hypercall_msr.as_uint64);
 
-       virtaddr = __vmalloc(PAGE_SIZE, GFP_KERNEL, PAGE_KERNEL_RX);
+       virtaddr = __vmalloc(PAGE_SIZE, GFP_KERNEL, PAGE_KERNEL_EXEC);
 
        if (!virtaddr)
                goto cleanup;