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Diffstat (limited to 'Documentation/networking/netdevices.txt')
| -rw-r--r-- | Documentation/networking/netdevices.txt | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/Documentation/networking/netdevices.txt b/Documentation/networking/netdevices.txt index 37869295fc7..9f7be9b7785 100644 --- a/Documentation/networking/netdevices.txt +++ b/Documentation/networking/netdevices.txt @@ -95,9 +95,13 @@ dev->set_multicast_list: Synchronization: netif_tx_lock spinlock. Context: BHs disabled -dev->poll: - Synchronization: __LINK_STATE_RX_SCHED bit in dev->state. See - dev_close code and comments in net/core/dev.c for more info. +struct napi_struct synchronization rules +======================================== +napi->poll: + Synchronization: NAPI_STATE_SCHED bit in napi->state. Device + driver's dev->close method will invoke napi_disable() on + all NAPI instances which will do a sleeping poll on the + NAPI_STATE_SCHED napi->state bit, waiting for all pending + NAPI activity to cease. Context: softirq will be called with interrupts disabled by netconsole. - |