From 254be490f257fc3f76ca5f869ac8d107b3827025 Mon Sep 17 00:00:00 2001 From: Hendrik Brueckner Date: Thu, 27 Aug 2009 01:45:39 +0000 Subject: hvc_console: Provide (un)locked version for hvc_resize() Rename the locking free hvc_resize() function to __hvc_resize() and provide an inline function that locks the hvc_struct and calls __hvc_resize(). The rationale for this patch is that virtio_console calls the hvc_resize() function without locking the hvc_struct. So it needs to call the lock itself. According to naming rules, the unlocked version is renamed and prefixed with "__". References to unlocked function calls in hvc back-ends has been updated. Signed-off-by: Hendrik Brueckner Acked-by: Christian Borntraeger Signed-off-by: Benjamin Herrenschmidt --- drivers/char/hvc_console.h | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) (limited to 'drivers/char/hvc_console.h') diff --git a/drivers/char/hvc_console.h b/drivers/char/hvc_console.h index 3c85d78c975c..10950ca706d8 100644 --- a/drivers/char/hvc_console.h +++ b/drivers/char/hvc_console.h @@ -28,6 +28,7 @@ #define HVC_CONSOLE_H #include #include +#include /* * This is the max number of console adapters that can/will be found as @@ -88,7 +89,16 @@ int hvc_poll(struct hvc_struct *hp); void hvc_kick(void); /* Resize hvc tty terminal window */ -extern void hvc_resize(struct hvc_struct *hp, struct winsize ws); +extern void __hvc_resize(struct hvc_struct *hp, struct winsize ws); + +static inline void hvc_resize(struct hvc_struct *hp, struct winsize ws) +{ + unsigned long flags; + + spin_lock_irqsave(&hp->lock, flags); + __hvc_resize(hp, ws); + spin_unlock_irqrestore(&hp->lock, flags); +} /* default notifier for irq based notification */ extern int notifier_add_irq(struct hvc_struct *hp, int data); -- cgit v1.2.1