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From: "Mattias Rönnblom" <mattias.ronnblom@ericsson.com>
To: "Min Hu (Connor)" <humin29@huawei.com>, "dev@dpdk.org" <dev@dpdk.org>
Cc: Thomas Monjalon <thomas@monjalon.net>,
	David Marchand <david.marchand@redhat.com>,
	"Honnappa.Nagarahalli@arm.com" <Honnappa.Nagarahalli@arm.com>,
	"mb@smartsharesystems.com" <mb@smartsharesystems.com>,
	"hofors@lysator.liu.se" <hofors@lysator.liu.se>,
	"michalx.k.jastrzebski@intel.com"
	<michalx.k.jastrzebski@intel.com>
Subject: Re: [RFC 3/3] examples/bond: fix invalid use of trylock
Date: Mon, 11 Apr 2022 14:32:18 +0000	[thread overview]
Message-ID: <4d4140a7-d8f1-aea1-1440-da2414054e41@ericsson.com> (raw)
In-Reply-To: <3443f2f4-ef5d-d727-e6d7-945e00211a11@huawei.com>

On 2022-04-11 03:01, Min Hu (Connor) wrote:
> Acked-by: Min Hu (Connor) <humin29@huawei.com>
> 

Thanks.

It was pretty obvious that something was wrong with this example's use 
of the spinlock, but after the brief look I had it was a little less 
obvious if this patch would fix the problem or not.

> 在 2022/4/10 21:51, Mattias Rönnblom 写道:
>> The conditional rte_spinlock_trylock() was used as if it is an
>> unconditional lock operation in a number of places.
>>
>> Fixes: cc7e8ae84faa ("examples/bond: add example application for link 
>> bonding mode 6")
>> Cc: michalx.k.jastrzebski@intel.com
>>
>> Signed-off-by: Mattias Rönnblom <mattias.ronnblom@ericsson.com>
>> ---
>>   examples/bond/main.c | 14 +++++++-------
>>   1 file changed, 7 insertions(+), 7 deletions(-)
>>
>> diff --git a/examples/bond/main.c b/examples/bond/main.c
>> index 335bde5c8d..4efebb3902 100644
>> --- a/examples/bond/main.c
>> +++ b/examples/bond/main.c
>> @@ -373,7 +373,7 @@ static int lcore_main(__rte_unused void *arg1)
>>       bond_ip = BOND_IP_1 | (BOND_IP_2 << 8) |
>>                   (BOND_IP_3 << 16) | (BOND_IP_4 << 24);
>> -    rte_spinlock_trylock(&global_flag_stru_p->lock);
>> +    rte_spinlock_lock(&global_flag_stru_p->lock);
>>       while (global_flag_stru_p->LcoreMainIsRunning) {
>>           rte_spinlock_unlock(&global_flag_stru_p->lock);
>> @@ -456,7 +456,7 @@ static int lcore_main(__rte_unused void *arg1)
>>               if (is_free == 0)
>>                   rte_pktmbuf_free(pkts[i]);
>>           }
>> -        rte_spinlock_trylock(&global_flag_stru_p->lock);
>> +        rte_spinlock_lock(&global_flag_stru_p->lock);
>>       }
>>       rte_spinlock_unlock(&global_flag_stru_p->lock);
>>       printf("BYE lcore_main\n");
>> @@ -571,7 +571,7 @@ static void cmd_start_parsed(__rte_unused void 
>> *parsed_result,
>>   {
>>       int worker_core_id = rte_lcore_id();
>> -    rte_spinlock_trylock(&global_flag_stru_p->lock);
>> +    rte_spinlock_lock(&global_flag_stru_p->lock);
>>       if (global_flag_stru_p->LcoreMainIsRunning == 0) {
>>           if (rte_eal_get_lcore_state(global_flag_stru_p->LcoreMainCore)
>>               != WAIT) {
>> @@ -591,7 +591,7 @@ static void cmd_start_parsed(__rte_unused void 
>> *parsed_result,
>>       if ((worker_core_id >= RTE_MAX_LCORE) || (worker_core_id == 0))
>>           return;
>> -    rte_spinlock_trylock(&global_flag_stru_p->lock);
>> +    rte_spinlock_lock(&global_flag_stru_p->lock);
>>       global_flag_stru_p->LcoreMainIsRunning = 1;
>>       rte_spinlock_unlock(&global_flag_stru_p->lock);
>>       cmdline_printf(cl,
>> @@ -659,7 +659,7 @@ static void cmd_stop_parsed(__rte_unused void 
>> *parsed_result,
>>                   struct cmdline *cl,
>>                   __rte_unused void *data)
>>   {
>> -    rte_spinlock_trylock(&global_flag_stru_p->lock);
>> +    rte_spinlock_lock(&global_flag_stru_p->lock);
>>       if (global_flag_stru_p->LcoreMainIsRunning == 0)    {
>>           cmdline_printf(cl,
>>                       "lcore_main not running on core:%d\n",
>> @@ -700,7 +700,7 @@ static void cmd_quit_parsed(__rte_unused void 
>> *parsed_result,
>>                   struct cmdline *cl,
>>                   __rte_unused void *data)
>>   {
>> -    rte_spinlock_trylock(&global_flag_stru_p->lock);
>> +    rte_spinlock_lock(&global_flag_stru_p->lock);
>>       if (global_flag_stru_p->LcoreMainIsRunning == 0)    {
>>           cmdline_printf(cl,
>>                       "lcore_main not running on core:%d\n",
>> @@ -762,7 +762,7 @@ static void cmd_show_parsed(__rte_unused void 
>> *parsed_result,
>>           printf("\n");
>>       }
>> -    rte_spinlock_trylock(&global_flag_stru_p->lock);
>> +    rte_spinlock_lock(&global_flag_stru_p->lock);
>>       cmdline_printf(cl,
>>               "Active_slaves:%d "
>>               "packets received:Tot:%d Arp:%d IPv4:%d\n",
>>


  reply	other threads:[~2022-04-11 14:32 UTC|newest]

Thread overview: 104+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-22 16:10 DPDK seqlock Mattias Rönnblom
2022-03-22 16:46 ` Ananyev, Konstantin
2022-03-24  4:52   ` Honnappa Nagarahalli
2022-03-24  5:06     ` Stephen Hemminger
2022-03-24 11:34     ` Mattias Rönnblom
2022-03-25 20:24       ` [RFC] eal: add seqlock Mattias Rönnblom
2022-03-25 21:10         ` Stephen Hemminger
2022-03-26 14:57           ` Mattias Rönnblom
2022-03-27 14:49         ` Ananyev, Konstantin
2022-03-27 17:42           ` Mattias Rönnblom
2022-03-28 10:53             ` Ananyev, Konstantin
2022-03-28 14:06               ` Ola Liljedahl
2022-03-29  8:32                 ` Mattias Rönnblom
2022-03-29 13:20                   ` Ananyev, Konstantin
2022-03-30 10:07                     ` [PATCH] " Mattias Rönnblom
2022-03-30 10:50                       ` Morten Brørup
2022-03-30 11:24                         ` Tyler Retzlaff
2022-03-30 11:25                         ` Mattias Rönnblom
2022-03-30 14:26                         ` [PATCH v2] " Mattias Rönnblom
2022-03-31  7:46                           ` Mattias Rönnblom
2022-03-31  9:04                             ` Ola Liljedahl
2022-03-31  9:25                               ` Morten Brørup
2022-03-31  9:38                                 ` Ola Liljedahl
2022-03-31 10:03                                   ` Morten Brørup
2022-03-31 11:44                                     ` Ola Liljedahl
2022-03-31 11:50                                       ` Morten Brørup
2022-03-31 14:02                                       ` Mattias Rönnblom
2022-04-01 15:07                                         ` [PATCH v3] " Mattias Rönnblom
2022-04-02  0:21                                           ` Honnappa Nagarahalli
2022-04-02 11:01                                             ` Morten Brørup
2022-04-02 19:38                                               ` Honnappa Nagarahalli
2022-04-10 13:51                                                 ` [RFC 1/3] eal: add macro to warn for unused function return values Mattias Rönnblom
2022-04-10 13:51                                                   ` [RFC 2/3] eal: emit warning for unused trylock return value Mattias Rönnblom
2022-04-10 13:51                                                   ` [RFC 3/3] examples/bond: fix invalid use of trylock Mattias Rönnblom
2022-04-11  1:01                                                     ` Min Hu (Connor)
2022-04-11 14:32                                                       ` Mattias Rönnblom [this message]
2022-04-11 11:25                                                     ` David Marchand
2022-04-11 14:33                                                       ` Mattias Rönnblom
2022-04-10 18:02                                                   ` [RFC 1/3] eal: add macro to warn for unused function return values Stephen Hemminger
2022-04-10 18:50                                                     ` Mattias Rönnblom
2022-04-11  7:17                                                   ` Morten Brørup
2022-04-11 14:29                                                     ` Mattias Rönnblom
2022-04-11  9:16                                                   ` Bruce Richardson
2022-04-11 14:27                                                     ` Mattias Rönnblom
2022-04-11 15:15                                                     ` [PATCH " Mattias Rönnblom
2022-04-11 15:15                                                       ` [PATCH 2/3] eal: emit warning for unused trylock return value Mattias Rönnblom
2022-04-11 15:29                                                         ` Morten Brørup
2022-04-11 15:15                                                       ` [PATCH 3/3] examples/bond: fix invalid use of trylock Mattias Rönnblom
2022-04-14 12:06                                                         ` David Marchand
2022-04-11 15:25                                                       ` [PATCH 1/3] eal: add macro to warn for unused function return values Morten Brørup
2022-04-11 18:24                                                     ` [RFC " Tyler Retzlaff
2022-04-03  6:10                                             ` [PATCH v3] eal: add seqlock Mattias Rönnblom
2022-04-03 17:27                                               ` Honnappa Nagarahalli
2022-04-03 18:37                                                 ` Ola Liljedahl
2022-04-04 21:56                                                   ` Honnappa Nagarahalli
2022-04-03  6:33                                             ` Mattias Rönnblom
2022-04-03 17:37                                               ` Honnappa Nagarahalli
2022-04-08 13:45                                                 ` Mattias Rönnblom
2022-04-02 18:15                                           ` Ola Liljedahl
2022-04-02 19:31                                             ` Honnappa Nagarahalli
2022-04-02 20:36                                               ` Morten Brørup
2022-04-02 22:01                                                 ` Honnappa Nagarahalli
2022-04-03 18:11                                               ` Ola Liljedahl
2022-04-03  6:51                                             ` Mattias Rönnblom
2022-03-31 13:51                                 ` [PATCH v2] " Mattias Rönnblom
2022-04-02  0:54                                   ` Stephen Hemminger
2022-04-02 10:25                                     ` Morten Brørup
2022-04-02 17:43                                       ` Ola Liljedahl
2022-03-31 13:38                               ` Mattias Rönnblom
2022-03-31 14:53                                 ` Ola Liljedahl
2022-04-02  0:52                                   ` Stephen Hemminger
2022-04-03  6:23                                     ` Mattias Rönnblom
2022-04-02  0:50                           ` Stephen Hemminger
2022-04-02 17:54                             ` Ola Liljedahl
2022-04-02 19:37                               ` Honnappa Nagarahalli
2022-04-05 20:16                           ` Stephen Hemminger
2022-04-08 13:50                             ` Mattias Rönnblom
2022-04-08 14:24                               ` [PATCH v4] " Mattias Rönnblom
2022-04-08 15:17                                 ` Stephen Hemminger
2022-04-08 16:24                                   ` Mattias Rönnblom
2022-04-08 15:19                                 ` Stephen Hemminger
2022-04-08 16:37                                   ` Mattias Rönnblom
2022-04-08 16:48                                 ` Mattias Rönnblom
2022-04-12 17:27                                 ` Ananyev, Konstantin
2022-04-28 10:28                                 ` David Marchand
2022-05-01 13:46                                   ` Mattias Rönnblom
2022-05-01 14:03                                     ` [PATCH v5] " Mattias Rönnblom
2022-05-01 14:22                                       ` Mattias Rönnblom
2022-05-02  6:47                                         ` David Marchand
2022-05-01 20:17                                       ` Stephen Hemminger
2022-05-02  4:51                                         ` Mattias Rönnblom
2022-05-06  1:26                                       ` fengchengwen
2022-05-06  1:33                                         ` Honnappa Nagarahalli
2022-05-06  4:17                                           ` fengchengwen
2022-05-06  5:19                                             ` Honnappa Nagarahalli
2022-05-06  7:03                                               ` fengchengwen
2022-05-08 11:56                                         ` Mattias Rönnblom
2022-05-08 12:12                                           ` [PATCH v6] " Mattias Rönnblom
2022-05-08 16:10                                             ` Stephen Hemminger
2022-05-08 19:40                                               ` Mattias Rönnblom
2022-05-09  3:48                                                 ` Stephen Hemminger
2022-05-09  6:26                                                   ` Morten Brørup
2022-05-13  6:27                                                   ` Mattias Rönnblom
2022-03-23 12:04 ` DPDK seqlock Morten Brørup

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