diff options
| -rw-r--r-- | net/dccp/ccids/lib/packet_history.c | 68 | ||||
| -rw-r--r-- | net/dccp/ccids/lib/tfrc.c | 31 |
2 files changed, 55 insertions, 44 deletions
diff --git a/net/dccp/ccids/lib/packet_history.c b/net/dccp/ccids/lib/packet_history.c index af44082f56e..727b17d3bd0 100644 --- a/net/dccp/ccids/lib/packet_history.c +++ b/net/dccp/ccids/lib/packet_history.c @@ -57,6 +57,22 @@ struct tfrc_tx_hist_entry { */ static struct kmem_cache *tfrc_tx_hist_slab; +int __init tfrc_tx_packet_history_init(void) +{ + tfrc_tx_hist_slab = kmem_cache_create("tfrc_tx_hist", + sizeof(struct tfrc_tx_hist_entry), + 0, SLAB_HWCACHE_ALIGN, NULL); + return tfrc_tx_hist_slab == NULL ? -ENOBUFS : 0; +} + +void tfrc_tx_packet_history_exit(void) +{ + if (tfrc_tx_hist_slab != NULL) { + kmem_cache_destroy(tfrc_tx_hist_slab); + tfrc_tx_hist_slab = NULL; + } +} + static struct tfrc_tx_hist_entry * tfrc_tx_hist_find_entry(struct tfrc_tx_hist_entry *head, u64 seqno) { @@ -119,6 +135,22 @@ EXPORT_SYMBOL_GPL(tfrc_tx_hist_rtt); */ static struct kmem_cache *tfrc_rx_hist_slab; +int __init tfrc_rx_packet_history_init(void) +{ + tfrc_rx_hist_slab = kmem_cache_create("tfrc_rxh_cache", + sizeof(struct tfrc_rx_hist_entry), + 0, SLAB_HWCACHE_ALIGN, NULL); + return tfrc_rx_hist_slab == NULL ? -ENOBUFS : 0; +} + +void tfrc_rx_packet_history_exit(void) +{ + if (tfrc_rx_hist_slab != NULL) { + kmem_cache_destroy(tfrc_rx_hist_slab); + tfrc_rx_hist_slab = NULL; + } +} + /** * tfrc_rx_hist_index - index to reach n-th entry after loss_start */ @@ -316,39 +348,3 @@ keep_ref_for_next_time: return sample; } EXPORT_SYMBOL_GPL(tfrc_rx_hist_sample_rtt); - -__init int packet_history_init(void) -{ - tfrc_tx_hist_slab = kmem_cache_create("tfrc_tx_hist", - sizeof(struct tfrc_tx_hist_entry), 0, - SLAB_HWCACHE_ALIGN, NULL); - if (tfrc_tx_hist_slab == NULL) - goto out_err; - - tfrc_rx_hist_slab = kmem_cache_create("tfrc_rx_hist", - sizeof(struct tfrc_rx_hist_entry), 0, - SLAB_HWCACHE_ALIGN, NULL); - if (tfrc_rx_hist_slab == NULL) - goto out_free_tx; - - return 0; - -out_free_tx: - kmem_cache_destroy(tfrc_tx_hist_slab); - tfrc_tx_hist_slab = NULL; -out_err: - return -ENOBUFS; -} - -void packet_history_exit(void) -{ - if (tfrc_tx_hist_slab != NULL) { - kmem_cache_destroy(tfrc_tx_hist_slab); - tfrc_tx_hist_slab = NULL; - } - - if (tfrc_rx_hist_slab != NULL) { - kmem_cache_destroy(tfrc_rx_hist_slab); - tfrc_rx_hist_slab = NULL; - } -} diff --git a/net/dccp/ccids/lib/tfrc.c b/net/dccp/ccids/lib/tfrc.c index 3a7a1838a64..20763fa75d4 100644 --- a/net/dccp/ccids/lib/tfrc.c +++ b/net/dccp/ccids/lib/tfrc.c @@ -14,27 +14,42 @@ module_param(tfrc_debug, bool, 0444); MODULE_PARM_DESC(tfrc_debug, "Enable debug messages"); #endif +extern int tfrc_tx_packet_history_init(void); +extern void tfrc_tx_packet_history_exit(void); +extern int tfrc_rx_packet_history_init(void); +extern void tfrc_rx_packet_history_exit(void); + extern int dccp_li_init(void); extern void dccp_li_exit(void); -extern int packet_history_init(void); -extern void packet_history_exit(void); static int __init tfrc_module_init(void) { int rc = dccp_li_init(); - if (rc == 0) { - rc = packet_history_init(); - if (rc != 0) - dccp_li_exit(); - } + if (rc) + goto out; + + rc = tfrc_tx_packet_history_init(); + if (rc) + goto out_free_loss_intervals; + rc = tfrc_rx_packet_history_init(); + if (rc) + goto out_free_tx_history; + return 0; + +out_free_tx_history: + tfrc_tx_packet_history_exit(); +out_free_loss_intervals: + dccp_li_exit(); +out: return rc; } static void __exit tfrc_module_exit(void) { - packet_history_exit(); + tfrc_rx_packet_history_exit(); + tfrc_tx_packet_history_exit(); dccp_li_exit(); } |