search for: console_set_on_cmdline

Without console= arguments on the kernel command line, the first console to register becomes enabled and the preferred console (the one behind /dev/console). This is tty (assuming CONFIG_VT_CONSOLE is enabled, which it commonly is). This is okay as long tty is a useful console. But unless we have the PV framebuffer, and it is enabled for this domain, tty0 in domU is merely a dummy. In that

Without console= arguments on the kernel command line, the first console to register becomes enabled and the preferred console (the one behind /dev/console). This is tty (assuming CONFIG_VT_CONSOLE is enabled, which it commonly is). This is okay as long tty is a useful console. But unless we have the PV framebuffer, and it is enabled for this domain, tty0 in domU is merely a dummy. In that

Without console= arguments on the kernel command line, the first console to register becomes enabled and the preferred console (the one behind /dev/console). This is tty (assuming CONFIG_VT_CONSOLE is enabled, which it commonly is). This is okay as long tty is a useful console. But unless we have the PV framebuffer, and it is enabled for this domain, tty0 in domU is merely a dummy. In that

This is an update to the Linux part of the Xen PVFB. Linux Xen PVFB is a pair of Xen para-virtual frontend device drivers: drivers/video/xen-fbfront.c provides a framebuffer, and drivers/input/xen-kbdfront provides keyboard and mouse. Their backends run in dom0 user space. Parts in this patch series: 1. Enable Xen console by default in domU 2. Pointer z-axis (mouse wheel) support 3. Module

This is an update to the Linux part of the Xen PVFB. Linux Xen PVFB is a pair of Xen para-virtual frontend device drivers: drivers/video/xen-fbfront.c provides a framebuffer, and drivers/input/xen-kbdfront provides keyboard and mouse. Their backends run in dom0 user space. Parts in this patch series: 1. Enable Xen console by default in domU 2. Pointer z-axis (mouse wheel) support 3. Module

This is an update to the Linux part of the Xen PVFB. Linux Xen PVFB is a pair of Xen para-virtual frontend device drivers: drivers/video/xen-fbfront.c provides a framebuffer, and drivers/input/xen-kbdfront provides keyboard and mouse. Their backends run in dom0 user space. Parts in this patch series: 1. Enable Xen console by default in domU 2. Pointer z-axis (mouse wheel) support 3. Module

...area = virtio_fb_copyarea, > + .fb_imageblit = virtio_fb_imageblit, > + .fb_check_var = virtio_fb_check_var, > + .fb_set_par = virtio_fb_set_par, > +}; > + > +static __devinit void > +virtio_fb_make_preferred_console(void) > +{ > + struct console *c; > + > + if (console_set_on_cmdline) > + return; > + > + acquire_console_sem(); > + for (c = console_drivers; c; c = c->next) { > + if (!strcmp(c->name, "tty") && c->index == 0) > + break; > + } {} not needed > + release_console_sem(); Just a thought: can console c go away at...

...area = virtio_fb_copyarea, > + .fb_imageblit = virtio_fb_imageblit, > + .fb_check_var = virtio_fb_check_var, > + .fb_set_par = virtio_fb_set_par, > +}; > + > +static __devinit void > +virtio_fb_make_preferred_console(void) > +{ > + struct console *c; > + > + if (console_set_on_cmdline) > + return; > + > + acquire_console_sem(); > + for (c = console_drivers; c; c = c->next) { > + if (!strcmp(c->name, "tty") && c->index == 0) > + break; > + } {} not needed > + release_console_sem(); Just a thought: can console c go away at...

...ck)); - release_console_sem(); + console_unlock(); return 0; } diff --git a/drivers/video/xen-fbfront.c b/drivers/video/xen-fbfront.c index 3e6934d..a20218c 100644 --- a/drivers/video/xen-fbfront.c +++ b/drivers/video/xen-fbfront.c @@ -491,12 +491,12 @@ xenfb_make_preferred_console(void) if (console_set_on_cmdline) return; - acquire_console_sem(); + console_lock(); for_each_console(c) { if (!strcmp(c->name, "tty") && c->index == 0) break; } - release_console_sem(); + console_unlock(); if (c) { unregister_console(c); c->flags |= CON_CONSDEV; diff --git a/fs/p...

...ck)); - release_console_sem(); + console_unlock(); return 0; } diff --git a/drivers/video/xen-fbfront.c b/drivers/video/xen-fbfront.c index 3e6934d..a20218c 100644 --- a/drivers/video/xen-fbfront.c +++ b/drivers/video/xen-fbfront.c @@ -491,12 +491,12 @@ xenfb_make_preferred_console(void) if (console_set_on_cmdline) return; - acquire_console_sem(); + console_lock(); for_each_console(c) { if (!strcmp(c->name, "tty") && c->index == 0) break; } - release_console_sem(); + console_unlock(); if (c) { unregister_console(c); c->flags |= CON_CONSDEV; diff --git a/fs/p...

...ck)); - release_console_sem(); + console_unlock(); return 0; } diff --git a/drivers/video/xen-fbfront.c b/drivers/video/xen-fbfront.c index 3e6934d..a20218c 100644 --- a/drivers/video/xen-fbfront.c +++ b/drivers/video/xen-fbfront.c @@ -491,12 +491,12 @@ xenfb_make_preferred_console(void) if (console_set_on_cmdline) return; - acquire_console_sem(); + console_lock(); for_each_console(c) { if (!strcmp(c->name, "tty") && c->index == 0) break; } - release_console_sem(); + console_unlock(); if (c) { unregister_console(c); c->flags |= CON_CONSDEV; diff --git a/fs/p...