diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/if_tap.h | 4 | ||||
| -rw-r--r-- | include/linux/mlx5/port.h | 2 | ||||
| -rw-r--r-- | include/linux/sctp.h | 34 | ||||
| -rw-r--r-- | include/linux/swait.h | 27 |
4 files changed, 37 insertions, 30 deletions
diff --git a/include/linux/if_tap.h b/include/linux/if_tap.h index 0d7b56d91308..13edf19ce9fb 100644 --- a/include/linux/if_tap.h +++ b/include/linux/if_tap.h @@ -74,8 +74,8 @@ void tap_del_queues(struct tap_dev *tap); int tap_get_minor(dev_t major, struct tap_dev *tap); void tap_free_minor(dev_t major, struct tap_dev *tap); int tap_queue_resize(struct tap_dev *tap); -int tap_create_cdev(struct cdev *tap_cdev, - dev_t *tap_major, const char *device_name); +int tap_create_cdev(struct cdev *tap_cdev, dev_t *tap_major, + const char *device_name, struct module *module); void tap_destroy_cdev(dev_t major, struct cdev *tap_cdev); #endif /*_LINUX_IF_TAP_H_*/ diff --git a/include/linux/mlx5/port.h b/include/linux/mlx5/port.h index c57d4b7de3a8..c59af8ab753a 100644 --- a/include/linux/mlx5/port.h +++ b/include/linux/mlx5/port.h @@ -157,6 +157,8 @@ int mlx5_set_port_prio_tc(struct mlx5_core_dev *mdev, u8 *prio_tc); int mlx5_query_port_prio_tc(struct mlx5_core_dev *mdev, u8 prio, u8 *tc); int mlx5_set_port_tc_group(struct mlx5_core_dev *mdev, u8 *tc_group); +int mlx5_query_port_tc_group(struct mlx5_core_dev *mdev, + u8 tc, u8 *tc_group); int mlx5_set_port_tc_bw_alloc(struct mlx5_core_dev *mdev, u8 *tc_bw); int mlx5_query_port_tc_bw_alloc(struct mlx5_core_dev *mdev, u8 tc, u8 *bw_pct); diff --git a/include/linux/sctp.h b/include/linux/sctp.h index 82b171e1aa0b..da803dfc7a39 100644 --- a/include/linux/sctp.h +++ b/include/linux/sctp.h @@ -231,7 +231,7 @@ struct sctp_datahdr { __be32 tsn; __be16 stream; __be16 ssn; - __be32 ppid; + __u32 ppid; __u8 payload[0]; }; @@ -716,28 +716,28 @@ struct sctp_reconf_chunk { struct sctp_strreset_outreq { struct sctp_paramhdr param_hdr; - __u32 request_seq; - __u32 response_seq; - __u32 send_reset_at_tsn; - __u16 list_of_streams[0]; + __be32 request_seq; + __be32 response_seq; + __be32 send_reset_at_tsn; + __be16 list_of_streams[0]; }; struct sctp_strreset_inreq { struct sctp_paramhdr param_hdr; - __u32 request_seq; - __u16 list_of_streams[0]; + __be32 request_seq; + __be16 list_of_streams[0]; }; struct sctp_strreset_tsnreq { struct sctp_paramhdr param_hdr; - __u32 request_seq; + __be32 request_seq; }; struct sctp_strreset_addstrm { struct sctp_paramhdr param_hdr; - __u32 request_seq; - __u16 number_of_streams; - __u16 reserved; + __be32 request_seq; + __be16 number_of_streams; + __be16 reserved; }; enum { @@ -752,16 +752,16 @@ enum { struct sctp_strreset_resp { struct sctp_paramhdr param_hdr; - __u32 response_seq; - __u32 result; + __be32 response_seq; + __be32 result; }; struct sctp_strreset_resptsn { struct sctp_paramhdr param_hdr; - __u32 response_seq; - __u32 result; - __u32 senders_next_tsn; - __u32 receivers_next_tsn; + __be32 response_seq; + __be32 result; + __be32 senders_next_tsn; + __be32 receivers_next_tsn; }; #endif /* __LINUX_SCTP_H__ */ diff --git a/include/linux/swait.h b/include/linux/swait.h index 29c9eb48ca89..c98aaf677466 100644 --- a/include/linux/swait.h +++ b/include/linux/swait.h @@ -10,13 +10,16 @@ /* * Simple wait queues * - * While these are very similar to the other/complex wait queues (wait.h) the - * most important difference is that the simple waitqueue allows for - * deterministic behaviour -- IOW it has strictly bounded IRQ and lock hold - * times. + * While these are very similar to regular wait queues (wait.h) the most + * important difference is that the simple waitqueue allows for deterministic + * behaviour -- IOW it has strictly bounded IRQ and lock hold times. * - * In order to make this so, we had to drop a fair number of features of the - * other waitqueue code; notably: + * Mainly, this is accomplished by two things. Firstly not allowing swake_up_all + * from IRQ disabled, and dropping the lock upon every wakeup, giving a higher + * priority task a chance to run. + * + * Secondly, we had to drop a fair number of features of the other waitqueue + * code; notably: * * - mixing INTERRUPTIBLE and UNINTERRUPTIBLE sleeps on the same waitqueue; * all wakeups are TASK_NORMAL in order to avoid O(n) lookups for the right @@ -25,12 +28,14 @@ * - the exclusive mode; because this requires preserving the list order * and this is hard. * - * - custom wake functions; because you cannot give any guarantees about - * random code. - * - * As a side effect of this; the data structures are slimmer. + * - custom wake callback functions; because you cannot give any guarantees + * about random code. This also allows swait to be used in RT, such that + * raw spinlock can be used for the swait queue head. * - * One would recommend using this wait queue where possible. + * As a side effect of these; the data structures are slimmer albeit more ad-hoc. + * For all the above, note that simple wait queues should _only_ be used under + * very specific realtime constraints -- it is best to stick with the regular + * wait queues in most cases. */ struct task_struct; |