x86: kvm: rename migrate_count variable

[Marcelo Tosatti]

As thats more indicative of the variables usage.

Suggested by Andy Lutomirski.

Signed-off-by: Marcelo Tosatti <mtosa...@redhat.com>

diff --git a/arch/x86/include/asm/pvclock.h b/arch/x86/include/asm/pvclock.h
index 25b1cc0..1c1b474 100644
--- a/arch/x86/include/asm/pvclock.h
+++ b/arch/x86/include/asm/pvclock.h
@@ -95,7 +95,7 @@ unsigned __pvclock_read_cycles(const struct 
pvclock_vcpu_time_info *src,
 
 struct pvclock_vsyscall_time_info {
        struct pvclock_vcpu_time_info pvti;
-       u32 migrate_count;
+       u32 migrate_from_count;
 } __attribute__((__aligned__(SMP_CACHE_BYTES)));
 
 #define PVTI_SIZE sizeof(struct pvclock_vsyscall_time_info)
diff --git a/arch/x86/kernel/pvclock.c b/arch/x86/kernel/pvclock.c
index e5ecd20..8eaf04b 100644
--- a/arch/x86/kernel/pvclock.c
+++ b/arch/x86/kernel/pvclock.c
@@ -172,7 +172,7 @@ static int pvclock_task_migrate(struct notifier_block *nb, 
unsigned long l,
        if (unlikely(pvti == NULL))
                return NOTIFY_DONE;
 
-       pvti->migrate_count++;
+       pvti->migrate_from_count++;
 
        return NOTIFY_DONE;
 }
diff --git a/arch/x86/vdso/vclock_gettime.c b/arch/x86/vdso/vclock_gettime.c
index 3093376..ef8bb76 100644
--- a/arch/x86/vdso/vclock_gettime.c
+++ b/arch/x86/vdso/vclock_gettime.c
@@ -82,7 +82,7 @@ static notrace cycle_t vread_pvclock(int *mode)
        cycle_t ret;
        u64 last;
        u32 version;
-       u32 migrate_count;
+       u32 migrate_from_count;
        u8 flags;
        unsigned cpu, cpu1;
 
@@ -101,7 +101,7 @@ static notrace cycle_t vread_pvclock(int *mode)
 
                pvti = get_pvti(cpu);
 
-               migrate_count = pvti->migrate_count;
+               migrate_from_count = pvti->migrate_from_count;
 
                version = __pvclock_read_cycles(&pvti->pvti, &ret, &flags);
 
@@ -115,7 +115,7 @@ static notrace cycle_t vread_pvclock(int *mode)
        } while (unlikely(cpu != cpu1 ||
                          (pvti->pvti.version & 1) ||
                          pvti->pvti.version != version ||
-                         pvti->migrate_count != migrate_count));
+                         pvti->migrate_from_count != migrate_from_count));
 
        if (unlikely(!(flags & PVCLOCK_TSC_STABLE_BIT)))
                *mode = VCLOCK_NONE;

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