diff options
Diffstat (limited to 'net/smc/smc_core.c')
| -rw-r--r-- | net/smc/smc_core.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/net/smc/smc_core.c b/net/smc/smc_core.c index 317bc2c90fab..d69f58f670a1 100644 --- a/net/smc/smc_core.c +++ b/net/smc/smc_core.c @@ -33,6 +33,7 @@ #include "smc_close.h" #include "smc_ism.h" #include "smc_netlink.h" +#include "smc_stats.h" #define SMC_LGR_NUM_INCR 256 #define SMC_LGR_FREE_DELAY_SERV (600 * HZ) @@ -2029,6 +2030,7 @@ static int __smc_buf_create(struct smc_sock *smc, bool is_smcd, bool is_rmb) struct smc_link_group *lgr = conn->lgr; struct list_head *buf_list; int bufsize, bufsize_short; + bool is_dgraded = false; struct mutex *lock; /* lock buffer list */ int sk_buf_size; @@ -2056,6 +2058,8 @@ static int __smc_buf_create(struct smc_sock *smc, bool is_smcd, bool is_rmb) /* check for reusable slot in the link group */ buf_desc = smc_buf_get_slot(bufsize_short, lock, buf_list); if (buf_desc) { + SMC_STAT_RMB_SIZE(is_smcd, is_rmb, bufsize); + SMC_STAT_BUF_REUSE(is_smcd, is_rmb); memset(buf_desc->cpu_addr, 0, bufsize); break; /* found reusable slot */ } @@ -2067,9 +2071,16 @@ static int __smc_buf_create(struct smc_sock *smc, bool is_smcd, bool is_rmb) if (PTR_ERR(buf_desc) == -ENOMEM) break; - if (IS_ERR(buf_desc)) + if (IS_ERR(buf_desc)) { + if (!is_dgraded) { + is_dgraded = true; + SMC_STAT_RMB_DOWNGRADED(is_smcd, is_rmb); + } continue; + } + SMC_STAT_RMB_ALLOC(is_smcd, is_rmb); + SMC_STAT_RMB_SIZE(is_smcd, is_rmb, bufsize); buf_desc->used = 1; mutex_lock(lock); list_add(&buf_desc->list, buf_list); |