diff options
Diffstat (limited to 'debian/patches-rt/tty_serial_omap__Make_the_locking_RT_aware.patch')
| -rw-r--r-- | debian/patches-rt/tty_serial_omap__Make_the_locking_RT_aware.patch | 47 |
1 files changed, 0 insertions, 47 deletions
diff --git a/debian/patches-rt/tty_serial_omap__Make_the_locking_RT_aware.patch b/debian/patches-rt/tty_serial_omap__Make_the_locking_RT_aware.patch deleted file mode 100644 index 89d744740..000000000 --- a/debian/patches-rt/tty_serial_omap__Make_the_locking_RT_aware.patch +++ /dev/null @@ -1,47 +0,0 @@ -Subject: tty/serial/omap: Make the locking RT aware -From: Thomas Gleixner <tglx@linutronix.de> -Date: Thu Jul 28 13:32:57 2011 +0200 -Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/6.6/older/patches-6.6.7-rt18.tar.xz - -From: Thomas Gleixner <tglx@linutronix.de> - -The lock is a sleeping lock and local_irq_save() is not the -optimsation we are looking for. Redo it to make it work on -RT and -non-RT. - -Signed-off-by: Thomas Gleixner <tglx@linutronix.de> - - ---- - drivers/tty/serial/omap-serial.c | 12 ++++-------- - 1 file changed, 4 insertions(+), 8 deletions(-) ---- ---- a/drivers/tty/serial/omap-serial.c -+++ b/drivers/tty/serial/omap-serial.c -@@ -1212,13 +1212,10 @@ serial_omap_console_write(struct console - unsigned int ier; - int locked = 1; - -- local_irq_save(flags); -- if (up->port.sysrq) -- locked = 0; -- else if (oops_in_progress) -- locked = uart_port_trylock(&up->port); -+ if (up->port.sysrq || oops_in_progress) -+ locked = uart_port_trylock_irqsave(&up->port, &flags); - else -- uart_port_lock(&up->port); -+ uart_port_lock_irqsave(&up->port, &flags); - - /* - * First save the IER then disable the interrupts -@@ -1245,8 +1242,7 @@ serial_omap_console_write(struct console - check_modem_status(up); - - if (locked) -- uart_port_unlock(&up->port); -- local_irq_restore(flags); -+ uart_port_unlock_irqrestore(&up->port, flags); - } - - static int __init |