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authorJoao Martins <joao.m.martins@oracle.com>2017-11-08 17:19:55 +0000
committerBoris Ostrovsky <boris.ostrovsky@oracle.com>2017-11-08 16:33:14 -0500
commit9f08890ab906abaf9d4c1bad8111755cbd302260 (patch)
treeb002987d2330af60099f058fbf74c9ba13ec8c6f /arch/x86/entry/vdso/vma.c
parent001f60e1f662a6dee1630a2915401aaf5959d479 (diff)
x86/pvclock: add setter for pvclock_pvti_cpu0_va
Right now there is only a pvclock_pvti_cpu0_va() which is defined on kvmclock since: commit dac16fba6fc5 ("x86/vdso: Get pvclock data from the vvar VMA instead of the fixmap") The only user of this interface so far is kvm. This commit adds a setter function for the pvti page and moves pvclock_pvti_cpu0_va to pvclock, which is a more generic place to have it; and would allow other PV clocksources to use it, such as Xen. While moving pvclock_pvti_cpu0_va into pvclock, rename also this function to pvclock_get_pvti_cpu0_va (including its call sites) to be symmetric with the setter (pvclock_set_pvti_cpu0_va). Signed-off-by: Joao Martins <joao.m.martins@oracle.com> Acked-by: Andy Lutomirski <luto@kernel.org> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Diffstat (limited to 'arch/x86/entry/vdso/vma.c')
-rw-r--r--arch/x86/entry/vdso/vma.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/entry/vdso/vma.c b/arch/x86/entry/vdso/vma.c
index 1911310959f8..a77fd3c8d824 100644
--- a/arch/x86/entry/vdso/vma.c
+++ b/arch/x86/entry/vdso/vma.c
@@ -112,7 +112,7 @@ static int vvar_fault(const struct vm_special_mapping *sm,
__pa_symbol(&__vvar_page) >> PAGE_SHIFT);
} else if (sym_offset == image->sym_pvclock_page) {
struct pvclock_vsyscall_time_info *pvti =
- pvclock_pvti_cpu0_va();
+ pvclock_get_pvti_cpu0_va();
if (pvti && vclock_was_used(VCLOCK_PVCLOCK)) {
ret = vm_insert_pfn(
vma,