diff options
| author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-18 19:31:54 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-18 19:31:54 -0700 |
| commit | 4fa4d23fa20de67df919030c1216295664866ad7 (patch) | |
| tree | 90e80f8a40665a351950ef25ab9de85b3647a23a /include | |
| parent | a9e82d3a02247af6b729be0a963862d70cb25bf9 (diff) | |
| parent | 4f1e5ba0977570b7a198bb3ac110ccc5f532821b (diff) | |
Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6:
pcnet32: remove private net_device_stats structure
vortex_up should initialize "err"
pcnet32: remove compile warnings in non-napi mode
pcnet32: fix non-napi packet reception
fix EMAC driver for proper napi_synchronize API
sky2: shutdown cleanup
napi_synchronize: waiting for NAPI
forcedeth msi bugfix
gianfar: fix obviously wrong #ifdef CONFIG_GFAR_NAPI placement
fs_enet: Update for API changes
gianfar: remove orphan struct.
forcedeth: fix rx-work condition in nv_rx_process_optimized() too
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/netdevice.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 452c88d971a..6f85db3535e 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -407,6 +407,24 @@ static inline void napi_enable(struct napi_struct *n) clear_bit(NAPI_STATE_SCHED, &n->state); } +#ifdef CONFIG_SMP +/** + * napi_synchronize - wait until NAPI is not running + * @n: napi context + * + * Wait until NAPI is done being scheduled on this context. + * Waits till any outstanding processing completes but + * does not disable future activations. + */ +static inline void napi_synchronize(const struct napi_struct *n) +{ + while (test_bit(NAPI_STATE_SCHED, &n->state)) + msleep(1); +} +#else +# define napi_synchronize(n) barrier() +#endif + /* * The DEVICE structure. * Actually, this whole structure is a big mistake. It mixes I/O |