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OpenCloudOS-Kernel
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OpenCloudOS-Kernel/arch/um/drivers
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Jeff Dike 605c1e5769 uml: correctly handle skb allocation failures 
Handle memory allocation failures when reading packets.

We have to read something from the host, even if we can't allocate any
memory.  If we don't, the host side of the device may fill up and stop
delivering interrupts because no new packets can be queued.

A single sk_buff is allocated whenever an MTU is seen which is larger
than any seen earlier.  This is used to read packets if there is a
memory allocation failure.

The large MTU check is done from eth_configure, which is called when a
interface is added to the system.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2007-10-16 09:43:08 -07:00
..
Makefile uml: add VDE networking support 2007-10-16 09:43:05 -07:00
chan_kern.c uml: fix console writing bugs 2007-10-16 09:43:04 -07:00
chan_user.c uml: remove os_* usage from userspace files 2007-10-16 09:43:06 -07:00
cow.h [PATCH] uml: avoid warnings for diffent names for an unsigned quadword 2006-04-11 06:18:37 -07:00
cow_sys.h uml: Eliminate kernel allocator wrappers 2007-07-16 09:05:38 -07:00
cow_user.c [PATCH] uml: fix patch mismerge 2006-05-01 18:17:44 -07:00
daemon.h uml: network formatting 2007-10-16 09:43:08 -07:00
daemon_kern.c uml: network driver MTU cleanups 2007-10-16 09:43:08 -07:00
daemon_user.c uml: network driver MTU cleanups 2007-10-16 09:43:08 -07:00
fd.c uml: console subsystem tidying 2007-10-16 09:43:04 -07:00
harddog_kern.c uml: fix nonremovability of watchdog 2007-10-16 09:43:04 -07:00
harddog_user.c uml: remove os_* usage from userspace files 2007-10-16 09:43:06 -07:00
hostaudio_kern.c uml: rename os_{read_write}_file_k back to os_{read_write}_file 2007-05-07 12:13:03 -07:00
line.c uml: console tidying 2007-10-16 09:43:04 -07:00
mcast.h uml: network formatting 2007-10-16 09:43:08 -07:00
mcast_kern.c uml: network driver MTU cleanups 2007-10-16 09:43:08 -07:00
mcast_user.c uml: network driver MTU cleanups 2007-10-16 09:43:08 -07:00
mconsole_kern.c uml: more idiomatic parameter parsing 2007-10-16 09:43:08 -07:00
mconsole_user.c uml: DEBUG_SHIRQ fixes 2007-07-16 09:05:38 -07:00
mmapper_kern.c Remove fs.h from mm.h 2007-07-29 17:09:29 -07:00
net_kern.c uml: correctly handle skb allocation failures 2007-10-16 09:43:08 -07:00
net_user.c uml: network formatting 2007-10-16 09:43:08 -07:00
null.c uml: console subsystem tidying 2007-10-16 09:43:04 -07:00
pcap_kern.c uml: network driver MTU cleanups 2007-10-16 09:43:08 -07:00
pcap_user.c uml: network driver MTU cleanups 2007-10-16 09:43:08 -07:00
pcap_user.h [PATCH] missed const in prototype 2006-10-10 15:37:24 -07:00
port.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
port_kern.c uml: console subsystem tidying 2007-10-16 09:43:04 -07:00
port_user.c uml: console subsystem tidying 2007-10-16 09:43:04 -07:00
pty.c uml: console subsystem tidying 2007-10-16 09:43:04 -07:00
random.c uml: rename os_{read_write}_file_k back to os_{read_write}_file 2007-05-07 12:13:03 -07:00
slip.h [PATCH] uml: const more data 2006-09-27 08:26:15 -07:00
slip_common.c [PATCH] uml: slirp and slip driver cleanups and fixes 2005-06-13 20:58:43 -07:00
slip_common.h [PATCH] uml: fix hugest stack users 2006-02-01 08:53:22 -08:00
slip_kern.c uml: network driver MTU cleanups 2007-10-16 09:43:08 -07:00
slip_user.c uml: network driver MTU cleanups 2007-10-16 09:43:08 -07:00
slirp.h [PATCH] uml: const more data 2006-09-27 08:26:15 -07:00
slirp_kern.c uml: network driver MTU cleanups 2007-10-16 09:43:08 -07:00
slirp_user.c uml: network driver MTU cleanups 2007-10-16 09:43:08 -07:00
ssl.c uml: handle errors on opening host side of consoles 2007-07-16 09:05:38 -07:00
ssl.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
stderr_console.c uml: get declaration of simple_strtoul 2007-06-08 17:23:33 -07:00
stdio_console.c uml: handle errors on opening host side of consoles 2007-07-16 09:05:38 -07:00
stdio_console.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
tty.c uml: console subsystem tidying 2007-10-16 09:43:04 -07:00
ubd_kern.c uml: remove unneeded void * cast 2007-10-16 09:43:07 -07:00
ubd_user.c uml: DEBUG_SHIRQ fixes 2007-07-16 09:05:38 -07:00
vde.h uml: add VDE networking support 2007-10-16 09:43:05 -07:00
vde_kern.c uml: network driver MTU cleanups 2007-10-16 09:43:08 -07:00
vde_user.c uml: network driver MTU cleanups 2007-10-16 09:43:08 -07:00
xterm.c uml: console subsystem tidying 2007-10-16 09:43:04 -07:00
xterm.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
xterm_kern.c uml: xterm driver tidying 2007-07-16 09:05:38 -07:00