The patch titled
sx: prepare for BKL pushdown
has been added to the -mm tree. Its filename is
sx-prepare-for-bkl-pushdown.patch
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------------------------------------------------------
Subject: sx: prepare for BKL pushdown
From: Alan Cox <alan@xxxxxxxxxxxxxxxxxxx>
Wrap the ioctl handler, and in this case the break handler also in the
BKL. Remove bogus softcar handlers.
Signed-off-by: Alan Cox <alan@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/char/sx.c | 17 ++++-------------
1 file changed, 4 insertions(+), 13 deletions(-)
diff -puN drivers/char/sx.c~sx-prepare-for-bkl-pushdown drivers/char/sx.c
--- a/drivers/char/sx.c~sx-prepare-for-bkl-pushdown
+++ a/drivers/char/sx.c
@@ -1844,6 +1844,7 @@ static void sx_break(struct tty_struct *
int rv;
func_enter();
+ lock_kernel();
if (flag)
rv = sx_send_command(port, HS_START, -1, HS_IDLE_BREAK);
@@ -1852,7 +1853,7 @@ static void sx_break(struct tty_struct *
if (rv != 1)
printk(KERN_ERR "sx: couldn't send break (%x).\n",
read_sx_byte(port->board, CHAN_OFFSET(port, hi_hstat)));
-
+ unlock_kernel();
func_exit();
}
@@ -1888,23 +1889,12 @@ static int sx_ioctl(struct tty_struct *t
int rc;
struct sx_port *port = tty->driver_data;
void __user *argp = (void __user *)arg;
- int ival;
/* func_enter2(); */
rc = 0;
+ lock_kernel();
switch (cmd) {
- case TIOCGSOFTCAR:
- rc = put_user(((tty->termios->c_cflag & CLOCAL) ? 1 : 0),
- (unsigned __user *)argp);
- break;
- case TIOCSSOFTCAR:
- if ((rc = get_user(ival, (unsigned __user *)argp)) == 0) {
- tty->termios->c_cflag =
- (tty->termios->c_cflag & ~CLOCAL) |
- (ival ? CLOCAL : 0);
- }
- break;
case TIOCGSERIAL:
rc = gs_getserial(&port->gs, argp);
break;
@@ -1915,6 +1905,7 @@ static int sx_ioctl(struct tty_struct *t
rc = -ENOIOCTLCMD;
break;
}
+ unlock_kernel();
/* func_exit(); */
return rc;
_
Patches currently in -mm which might be from alan@xxxxxxxxxxxxxxxxxxx are
origin.patch
libata-isolate-and-rework-cable-logic.patch
pata_amd-fix-sparse-warning.patch
8390-split-8390-support-into-a-pausing-and-a-non-pausing-driver-core.patch
parisc-new-termios-definitions.patch
megaraid-outb_p-extermination.patch
usb-serial-prepare-for-bkl-push-down.patch
ftdi_sio-note-missing-locking.patch
usb-serial-note-mos7480-and-option-dont-lock-modem-status.patch
io_ti-lock-mcr-and-msr-shadows-properly.patch
iuu_phoenix-lock-priv-tiostatus-properly.patch
kobil_sct-get-rid-of-unneeded-priv-line_state.patch
ti_usb_3410_5052-extend-locking-to-msr-and-shadow-mcr.patch
git-watchdog.patch
crisv10-prepare-for-bkl-push-down.patch
fix-tty-speed-handling-on-8250.patch
uart_get_baud_rate-stop-mangling-termios.patch
do_task_stat-dont-take-rcu_read_lock.patch
amiserial-prepare-for-locking-relaxation-in-caller.patch
cyclades-prepare-for-relaxed-locking-in-callers.patch
epca-lock_kernel-push-down.patch
esp-lock_kernel-push-down.patch
isicom-prepare-for-lock_kernel-push-down.patch
isicom-istallion-prepare-for-lock_kernel-pushdown.patch
mxser-prepare-for-bkl-pushdown.patch
nozomi-prepare-for-bkl-pushdown.patch
riscom8-prepare-for-bkl-pushdown.patch
rocket-prepare-for-bkl-pushdown.patch
serial167-prepare-to-push-bkl-down-into-drivers.patch
specialix-prepare-for-bkl-pushdown.patch
stallion-prepare-for-bkl-push-down.patch
sx-prepare-for-bkl-pushdown.patch
synclink-series-prepare-for-bkl-pushdown.patch
viocons-bkl-locking.patch
vt_ioctl-prepare-for-bkl-push-down.patch
isdn_tty-prepare-for-bkl-push-down.patch
68360serial-note-that-there-isnt-any-info-mcr-locking.patch
serial_core-prepare-for-bkl-push-down.patch
tty-bkl-pushdown.patch
tty-bkl-pushdown-fix1.patch
redo-locking-of-tty-pgrp.patch
put_pid-make-sure-we-dont-free-the-live-pid.patch
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