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| author | Eric Dumazet <[email protected]> | 2013-08-29 01:10:43 +0000 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2013-08-30 21:48:04 +0000 |
| commit | 702821f4ea6f68db18aa1de7d8ed62c6ba586a64 (patch) | |
| tree | a0e3a4ba9577812f220224d7e6380146c193dc2e /fs/btrfs/dev-replace.c | |
| parent | Revert "ipv6: Don't depend on per socket memory for neighbour discovery messa... (diff) | |
| download | kernel-702821f4ea6f68db18aa1de7d8ed62c6ba586a64.tar.gz kernel-702821f4ea6f68db18aa1de7d8ed62c6ba586a64.zip | |
net: revert 8728c544a9c ("net: dev_pick_tx() fix")
commit 8728c544a9cbdc ("net: dev_pick_tx() fix") and commit
b6fe83e9525a ("bonding: refine IFF_XMIT_DST_RELEASE capability")
are quite incompatible : Queue selection is disabled because skb
dst was dropped before entering bonding device.
This causes major performance regression, mainly because TCP packets
for a given flow can be sent to multiple queues.
This is particularly visible when using the new FQ packet scheduler
with MQ + FQ setup on the slaves.
We can safely revert the first commit now that 416186fbf8c5b
("net: Split core bits of netdev_pick_tx into __netdev_pick_tx")
properly caps the queue_index.
Reported-by: Xi Wang <[email protected]>
Diagnosed-by: Xi Wang <[email protected]>
Signed-off-by: Eric Dumazet <[email protected]>
Cc: Tom Herbert <[email protected]>
Cc: Alexander Duyck <[email protected]>
Cc: Denys Fedorysychenko <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'fs/btrfs/dev-replace.c')
0 files changed, 0 insertions, 0 deletions