https://github.com/torvalds/linux
Revision 240ce7f6428ff5188b9eedc066e1e4d645b8635f authored by Petr Machata on 06 January 2020, 18:01:56 UTC, committed by David S. Miller on 08 January 2020, 20:45:53 UTC
When a child Qdisc is removed from one of the PRIO Qdisc's bands, it is
replaced unconditionally by a NOOP qdisc. As a result, any traffic hitting
that band gets dropped. That is incorrect--no Qdisc was explicitly added
when PRIO was created, and after removal, none should have to be added
either.

Fix PRIO by first attempting to create a default Qdisc and only falling
back to noop when that fails. This pattern of attempting to create an
invisible FIFO, using NOOP only as a fallback, is also seen in other
Qdiscs.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
1 parent 3971a53
History
Tip revision: 240ce7f6428ff5188b9eedc066e1e4d645b8635f authored by Petr Machata on 06 January 2020, 18:01:56 UTC
net: sch_prio: When ungrafting, replace with FIFO
Tip revision: 240ce7f
File Mode Size
Documentation
LICENSES
arch
block
certs
crypto
drivers
fs
include
init
ipc
kernel
lib
mm
net
samples
scripts
security
sound
tools
usr
virt
.clang-format -rw-r--r-- 15.0 KB
.cocciconfig -rw-r--r-- 59 bytes
.get_maintainer.ignore -rw-r--r-- 71 bytes
.gitattributes -rw-r--r-- 62 bytes
.gitignore -rw-r--r-- 1.7 KB
.mailmap -rw-r--r-- 14.1 KB
COPYING -rw-r--r-- 423 bytes
CREDITS -rw-r--r-- 97.3 KB
Kbuild -rw-r--r-- 1.3 KB
Kconfig -rw-r--r-- 595 bytes
MAINTAINERS -rw-r--r-- 526.7 KB
Makefile -rw-r--r-- 59.4 KB
README -rw-r--r-- 727 bytes

README

back to top