linux/arch/um/drivers
Thorsten Knabe c8f7124034 um: ubd: Fix for processes stuck in D state forever
commit 2a2361228c upstream.

Starting with Linux 3.12 processes get stuck in D state forever in
UserModeLinux under sync heavy workloads. This bug was introduced by
commit 805f11a0d5 (um: ubd: Add REQ_FLUSH suppport).
Fix bug by adding a check if FLUSH request was successfully submitted to
the I/O thread and keeping the FLUSH request on the request queue on
submission failures.

Fixes: 805f11a0d5 (um: ubd: Add REQ_FLUSH suppport)
Signed-off-by: Thorsten Knabe <linux@thorsten-knabe.de>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-14 08:59:49 -08:00
..
Makefile um: add ucast ethernet transport 2011-05-25 08:39:41 -07:00
chan.h um: Use tty_port in SIGWINCH handler 2013-03-11 10:08:04 +01:00
chan_kern.c Merge 3.9-rc3 into tty-next 2013-03-21 16:07:34 -07:00
chan_user.c um: Use tty_port in SIGWINCH handler 2013-03-11 10:08:04 +01:00
chan_user.h um: Use tty_port in SIGWINCH handler 2013-03-11 10:08:04 +01:00
cow.h um: switch cow_user.h to htobe{32,64}/betoh{32,64} 2012-04-10 00:13:45 +02:00
cow_sys.h um: get rid of pointless include "..." where include <...> will do 2012-10-09 22:28:45 +02:00
cow_user.c um: switch cow_user.h to htobe{32,64}/betoh{32,64} 2012-04-10 00:13:45 +02:00
daemon.h um: get rid of pointless include "..." where include <...> will do 2012-10-09 22:28:45 +02:00
daemon_kern.c um: get rid of pointless include "..." where include <...> will do 2012-10-09 22:28:45 +02:00
daemon_user.c um: get rid of pointless include "..." where include <...> will do 2012-10-09 22:28:45 +02:00
fd.c um: get rid of pointless include "..." where include <...> will do 2012-10-09 22:28:45 +02:00
harddog_kern.c Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-22 10:52:56 -07:00
harddog_user.c um: get rid of pointless include "..." where include <...> will do 2012-10-09 22:28:45 +02:00
hostaudio_kern.c um: get rid of pointless include "..." where include <...> will do 2012-10-09 22:28:45 +02:00
line.c Merge 3.9-rc3 into tty-next 2013-03-21 16:07:34 -07:00
line.h um: get rid of pointless include "..." where include <...> will do 2012-10-09 22:28:45 +02:00
mconsole.h um: get rid of pointless include "..." where include <...> will do 2012-10-09 22:28:45 +02:00
mconsole_kern.c um: Get rid of thread_struct->saved_task 2013-11-17 11:27:35 +01:00
mconsole_kern.h um: get rid of pointless include "..." where include <...> will do 2012-10-09 22:28:45 +02:00
mconsole_user.c um: -include user.h for USER_OBJ, trim includes 2011-11-02 14:14:44 +01:00
mmapper_kern.c um: get rid of pointless include "..." where include <...> will do 2012-10-09 22:28:45 +02:00
net_kern.c net : enable tx time stamping in the vde driver. 2013-03-11 10:08:02 +01:00
net_user.c um: get rid of pointless include "..." where include <...> will do 2012-10-09 22:28:45 +02:00
null.c um: get rid of pointless include "..." where include <...> will do 2012-10-09 22:28:45 +02:00
pcap_kern.c um: get rid of pointless include "..." where include <...> will do 2012-10-09 22:28:45 +02:00
pcap_user.c um: get rid of pointless include "..." where include <...> will do 2012-10-09 22:28:45 +02:00
pcap_user.h um: get rid of pointless include "..." where include <...> will do 2012-10-09 22:28:45 +02:00
port.h uml: remove useless comments 2009-04-01 08:59:17 -07:00
port_kern.c um: get rid of pointless include "..." where include <...> will do 2012-10-09 22:28:45 +02:00
port_user.c um: get rid of pointless include "..." where include <...> will do 2012-10-09 22:28:45 +02:00
pty.c um: get rid of pointless include "..." where include <...> will do 2012-10-09 22:28:45 +02:00
random.c um: get rid of pointless include "..." where include <...> will do 2012-10-09 22:28:45 +02:00
slip.h [PATCH] uml: const more data 2006-09-27 08:26:15 -07:00
slip_common.c um: get rid of pointless include "..." where include <...> will do 2012-10-09 22:28:45 +02:00
slip_common.h [PATCH] uml: fix hugest stack users 2006-02-01 08:53:22 -08:00
slip_kern.c um: get rid of pointless include "..." where include <...> will do 2012-10-09 22:28:45 +02:00
slip_user.c um: get rid of pointless include "..." where include <...> will do 2012-10-09 22:28:45 +02:00
slirp.h [PATCH] uml: const more data 2006-09-27 08:26:15 -07:00
slirp_kern.c um: get rid of pointless include "..." where include <...> will do 2012-10-09 22:28:45 +02:00
slirp_user.c um: get rid of pointless include "..." where include <...> will do 2012-10-09 22:28:45 +02:00
ssl.c um: Use tty_port_operations->destruct 2013-03-11 10:08:03 +01:00
ssl.h uml: remove useless comments 2009-04-01 08:59:17 -07:00
stderr_console.c spelling fixes: arch/um/ 2007-10-20 01:23:03 +02:00
stdio_console.c um: Use tty_port_operations->destruct 2013-03-11 10:08:03 +01:00
stdio_console.h uml: remove useless comments 2009-04-01 08:59:17 -07:00
tty.c um: get rid of pointless include "..." where include <...> will do 2012-10-09 22:28:45 +02:00
ubd.h um: Cleanup SIGTERM handling 2013-09-07 10:56:58 +02:00
ubd_kern.c um: ubd: Fix for processes stuck in D state forever 2014-11-14 08:59:49 -08:00
ubd_user.c um: Cleanup SIGTERM handling 2013-09-07 10:56:58 +02:00
umcast.h um: get rid of pointless include "..." where include <...> will do 2012-10-09 22:28:45 +02:00
umcast_kern.c um: get rid of pointless include "..." where include <...> will do 2012-10-09 22:28:45 +02:00
umcast_user.c um: get rid of pointless include "..." where include <...> will do 2012-10-09 22:28:45 +02:00
vde.h uml: add VDE networking support 2007-10-16 09:43:05 -07:00
vde_kern.c um: get rid of pointless include "..." where include <...> will do 2012-10-09 22:28:45 +02:00
vde_user.c um: get rid of pointless include "..." where include <...> will do 2012-10-09 22:28:45 +02:00
xterm.c um: get rid of pointless include "..." where include <...> will do 2012-10-09 22:28:45 +02:00
xterm.h uml: remove useless comments 2009-04-01 08:59:17 -07:00
xterm_kern.c um: get rid of pointless include "..." where include <...> will do 2012-10-09 22:28:45 +02:00