Peter Hurley 2aff5e2bc6 tty: Change tty lock order to master->slave ... When releasing the master pty, the slave pty also needs to be locked to prevent concurrent tty count changes for the slave pty and to ensure that only one parallel master and slave release observe the final close, and proceed to destruct the pty pair. Conversely, when releasing the slave pty, locking the master pty is not necessary (since the master's state can be inferred by the slave tty count). Introduce tty_lock_slave()/tty_unlock_slave() which acquires/releases the tty lock of the slave pty. Remove tty_lock_pair()/tty_unlock_pair(). Dropping the tty_lock is no longer required to re-establish a stable lock order. Reviewed-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2014-11-05 18:50:42 -08:00
..
hvc	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux	2014-10-11 20:34:00 -04:00
ipwireless	tty: ipwireless: Remove tty->closing abort from ipw_open()	2014-07-10 16:06:49 -07:00
serial	8250_pci: Added driver for Endrun Technologies PTP PCIe card.	2014-11-05 16:36:01 -08:00
vt	tty/vt/keyboard: Resolve many shadow warnings	2014-09-08 16:30:43 -07:00
amiserial.c	tty/amiserial: avoid interruptible_sleep_on	2014-01-07 17:05:21 -08:00
bfin_jtag_comm.c	sched, cleanup, treewide: Remove set_current_state(TASK_RUNNING) after schedule()	2014-09-19 12:35:17 +02:00
cyclades.c	tty: Remove tty_hung_up_p() tests from tty drivers' open()	2014-07-10 16:06:49 -07:00
ehv_bytechan.c	tty: Update hypervisor tty drivers to use core stdout parsing code.	2014-06-26 17:12:23 +01:00
goldfish.c	goldfish: off by one in goldfish_tty_console_setup()	2014-11-05 16:12:45 -08:00
isicom.c
Kconfig	drivers/tty: ehv_bytechan fails to build as a module	2014-01-09 17:52:12 -06:00
Makefile	tty: Add timed, writer-prioritized rw semaphore	2013-05-20 12:30:32 -07:00
metag_da.c	tty/metag_da: Add console_poll module parameter	2014-09-28 21:35:56 -04:00
moxa.c	TTY: fix decimal printf format specifiers prefixed with 0x	2014-09-08 15:51:35 -07:00
moxa.h
mxser.c	tty: mxser: Fix build warning introduced by dfc7b837c7 (Re: linux-next: build warning after merge of the tty.current tree)	2013-05-22 10:26:02 -07:00
mxser.h
n_gsm.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2014-08-06 09:38:14 -07:00
n_hdlc.c	drivers/tty/n_hdlc.c: replace kmalloc/memset by kzalloc	2014-05-28 13:33:18 -07:00
n_r3964.c	tty: Always handle NULL flag ptr	2013-12-08 16:56:05 -08:00
n_tracerouter.c
n_tracesink.c
n_tracesink.h
n_tty.c	n_tty: Remove stale read lock comment	2014-11-05 16:34:36 -08:00
nozomi.c	drivers/tty/nozomi.c: Use 'nozomi_setup_memory' instead of 'setup_memory'	2014-09-08 16:09:23 -07:00
pty.c	pty: Always return -EIO if slave BSD pty opened first	2014-11-05 18:24:10 -08:00
rocket_int.h
rocket.c	tty: remove DEFINE_PCI_DEVICE_TABLE macro	2013-12-08 17:09:07 -08:00
rocket.h
synclink_gt.c	synclink_gt: use pci_zalloc_consistent	2014-08-08 15:57:30 -07:00
synclink.c	tty: Remove tty_hung_up_p() tests from tty drivers' open()	2014-07-10 16:06:49 -07:00
synclinkmp.c	tty: Remove tty_hung_up_p() tests from tty drivers' open()	2014-07-10 16:06:49 -07:00
sysrq.c	mm, oom: ensure memoryless node zonelist always includes zones	2014-08-06 18:01:21 -07:00
tty_audit.c	audit: anchor all pid references in the initial pid namespace	2014-03-20 10:11:55 -04:00
tty_buffer.c	Staging: speakup: Update __speakup_paste_selection() tty (ab)usage to match vt	2014-05-24 02:25:11 +09:00
tty_io.c	tty: Change tty lock order to master->slave	2014-11-05 18:50:42 -08:00
tty_ioctl.c	tty: Move pty-specific set_termios() handling to pty driver	2014-11-05 16:34:36 -08:00
tty_ldisc.c	tty: Simplify tty_ldisc_release() interface	2014-11-05 18:42:46 -08:00
tty_ldsem.c	lockdep: Make held_lock->check and "int check" argument bool	2014-02-09 21:18:54 +01:00
tty_mutex.c	tty: Change tty lock order to master->slave	2014-11-05 18:50:42 -08:00
tty_port.c	tty: Remove tty_hung_up_p() tests from tty drivers' open()	2014-07-10 16:06:49 -07:00