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authorIngo Molnar <mingo@kernel.org>2015-05-11 09:47:23 +0200
committerIngo Molnar <mingo@kernel.org>2015-05-11 09:52:09 +0200
commit62c7a1e9ae54ef66658df9614bdbc09cbbdaa6f0 (patch)
treebdbb852b6302f589e357f9c86966fc0865b8ab49 /arch/x86/xen
parentlocking/pvqspinlock: Replace xchg() by the more descriptive set_mb() (diff)
downloadlinux-dev-62c7a1e9ae54ef66658df9614bdbc09cbbdaa6f0.tar.xz
linux-dev-62c7a1e9ae54ef66658df9614bdbc09cbbdaa6f0.zip
locking/pvqspinlock: Rename QUEUED_SPINLOCK to QUEUED_SPINLOCKS
Valentin Rothberg reported that we use CONFIG_QUEUED_SPINLOCKS in arch/x86/kernel/paravirt_patch_32.c, while the symbol is called CONFIG_QUEUED_SPINLOCK. (Note the extra 'S') But the typo was natural: the proper English term for such a generic object would be 'queued spinlocks' - so rename this and related symbols accordingly to the plural form. Reported-by: Valentin Rothberg <valentinrothberg@gmail.com> Cc: Douglas Hatch <doug.hatch@hp.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Scott J Norton <scott.norton@hp.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Waiman Long <Waiman.Long@hp.com> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/xen')
-rw-r--r--arch/x86/xen/spinlock.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/arch/x86/xen/spinlock.c b/arch/x86/xen/spinlock.c
index af907a90fb19..9e2ba5c6e1dd 100644
--- a/arch/x86/xen/spinlock.c
+++ b/arch/x86/xen/spinlock.c
@@ -21,7 +21,7 @@ static DEFINE_PER_CPU(int, lock_kicker_irq) = -1;
static DEFINE_PER_CPU(char *, irq_name);
static bool xen_pvspin = true;
-#ifdef CONFIG_QUEUED_SPINLOCK
+#ifdef CONFIG_QUEUED_SPINLOCKS
#include <asm/qspinlock.h>
@@ -65,7 +65,7 @@ static void xen_qlock_wait(u8 *byte, u8 val)
xen_poll_irq(irq);
}
-#else /* CONFIG_QUEUED_SPINLOCK */
+#else /* CONFIG_QUEUED_SPINLOCKS */
enum xen_contention_stat {
TAKEN_SLOW,
@@ -264,7 +264,7 @@ static void xen_unlock_kick(struct arch_spinlock *lock, __ticket_t next)
}
}
}
-#endif /* CONFIG_QUEUED_SPINLOCK */
+#endif /* CONFIG_QUEUED_SPINLOCKS */
static irqreturn_t dummy_handler(int irq, void *dev_id)
{
@@ -328,7 +328,7 @@ void __init xen_init_spinlocks(void)
return;
}
printk(KERN_DEBUG "xen: PV spinlocks enabled\n");
-#ifdef CONFIG_QUEUED_SPINLOCK
+#ifdef CONFIG_QUEUED_SPINLOCKS
__pv_init_lock_hash();
pv_lock_ops.queued_spin_lock_slowpath = __pv_queued_spin_lock_slowpath;
pv_lock_ops.queued_spin_unlock = PV_CALLEE_SAVE(__pv_queued_spin_unlock);
@@ -366,7 +366,7 @@ static __init int xen_parse_nopvspin(char *arg)
}
early_param("xen_nopvspin", xen_parse_nopvspin);
-#if defined(CONFIG_XEN_DEBUG_FS) && !defined(CONFIG_QUEUED_SPINLOCK)
+#if defined(CONFIG_XEN_DEBUG_FS) && !defined(CONFIG_QUEUED_SPINLOCKS)
static struct dentry *d_spin_debug;