[PATCH v3 0/14] some netpoll and netconsole fixes
From: Cong Wang <hidden>
Date: 2012-08-09 15:00:45
V3: * add more patches * update patch 7 as David suggested V2: * update patch 1/8 as Eric suggested * drop the bridge patch, add comments instead * add patch 8/8 This patchset fixes serval problems in netconsole and netpoll. I ran this patch in my KVM guest with some netpoll test cases, even covered with some corner cases, everything worked as expected. BTW, my kernel config enables the following validatation options: CONFIG_DEBUG_ATOMIC_SLEEP=y CONFIG_PROVE_LOCKING=y CONFIG_PROVE_RCU=y CONFIG_LOCKDEP=y CONFIG_RCU_CPU_STALL_TIMEOUT=60 CONFIG_LOCKUP_DETECTOR=y CONFIG_HARDLOCKUP_DETECTOR=y Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Cong Wang <redacted> -------- netpoll: use GFP_ATOMIC in slave_enable_netpoll() and netpoll: make __netpoll_cleanup non-block netconsole: do not release spin_lock when calling netpoll: take rcu_read_lock_bh() in netpoll_rx() netpoll: use netpoll_rx_on() in netpoll_rx() netpoll: take rcu_read_lock_bh() in bridge: add some comments for NETDEV_RELEASE bridge: use list_for_each_entry() in netpoll functions netpoll: check netpoll tx status on the right device netpoll: convert several functions to bool vlan: clean up vlan_dev_hard_start_xmit() netpoll: handle vlan tags in netpoll tx and rx path netpoll: re-enable irq in poll_napi() netconsole.txt: revision of examples for the receiver Documentation/networking/netconsole.txt | 19 +++++- drivers/net/bonding/bond_main.c | 12 ++-- drivers/net/netconsole.c | 5 -- drivers/net/team/team.c | 16 +++-- include/linux/if_team.h | 2 +- include/linux/netdevice.h | 3 +- include/linux/netpoll.h | 42 +++++++----- net/8021q/vlan_dev.c | 40 +++++++---- net/bridge/br_device.c | 27 +++----- net/bridge/br_forward.c | 2 +- net/bridge/br_if.c | 5 +- net/bridge/br_private.h | 4 +- net/core/netpoll.c | 109 ++++++++++++++++++++++--------- 13 files changed, 179 insertions(+), 107 deletions(-)