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{
    "id": 11317,
    "url": "https://patches.dpdk.org/api/patches/11317/?format=api",
    "web_url": "https://patches.dpdk.org/project/dpdk/patch/1457540381-20274-26-git-send-email-olivier.matz@6wind.com/",
    "project": {
        "id": 1,
        "url": "https://patches.dpdk.org/api/projects/1/?format=api",
        "name": "DPDK",
        "link_name": "dpdk",
        "list_id": "dev.dpdk.org",
        "list_email": "dev@dpdk.org",
        "web_url": "http://core.dpdk.org",
        "scm_url": "git://dpdk.org/dpdk",
        "webscm_url": "http://git.dpdk.org/dpdk",
        "list_archive_url": "https://inbox.dpdk.org/dev",
        "list_archive_url_format": "https://inbox.dpdk.org/dev/{}",
        "commit_url_format": ""
    },
    "msgid": "<1457540381-20274-26-git-send-email-olivier.matz@6wind.com>",
    "list_archive_url": "https://inbox.dpdk.org/dev/1457540381-20274-26-git-send-email-olivier.matz@6wind.com",
    "date": "2016-03-09T16:19:31",
    "name": "[dpdk-dev,RFC,25/35] mempool: introduce a function to free a mempool",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": true,
    "hash": "8399e1599601af7623c46b2d3ae8f1b94be331bc",
    "submitter": {
        "id": 8,
        "url": "https://patches.dpdk.org/api/people/8/?format=api",
        "name": "Olivier Matz",
        "email": "olivier.matz@6wind.com"
    },
    "delegate": null,
    "mbox": "https://patches.dpdk.org/project/dpdk/patch/1457540381-20274-26-git-send-email-olivier.matz@6wind.com/mbox/",
    "series": [],
    "comments": "https://patches.dpdk.org/api/patches/11317/comments/",
    "check": "pending",
    "checks": "https://patches.dpdk.org/api/patches/11317/checks/",
    "tags": {},
    "related": [],
    "headers": {
        "Return-Path": "<dev-bounces@dpdk.org>",
        "X-Original-To": "patchwork@dpdk.org",
        "Delivered-To": "patchwork@dpdk.org",
        "Received": [
            "from [92.243.14.124] (localhost [IPv6:::1])\n\tby dpdk.org (Postfix) with ESMTP id 7A2155A56;\n\tWed,  9 Mar 2016 17:22:41 +0100 (CET)",
            "from proxy.6wind.com (host.76.145.23.62.rev.coltfrance.com\n\t[62.23.145.76]) by dpdk.org (Postfix) with ESMTP id 842684CE4\n\tfor <dev@dpdk.org>; Wed,  9 Mar 2016 17:22:15 +0100 (CET)",
            "from glumotte.dev.6wind.com (unknown [10.16.0.195])\n\tby proxy.6wind.com (Postfix) with ESMTP id 7F3E424C16\n\tfor <dev@dpdk.org>; Wed,  9 Mar 2016 17:21:32 +0100 (CET)"
        ],
        "From": "Olivier Matz <olivier.matz@6wind.com>",
        "To": "dev@dpdk.org",
        "Date": "Wed,  9 Mar 2016 17:19:31 +0100",
        "Message-Id": "<1457540381-20274-26-git-send-email-olivier.matz@6wind.com>",
        "X-Mailer": "git-send-email 2.1.4",
        "In-Reply-To": "<1457540381-20274-1-git-send-email-olivier.matz@6wind.com>",
        "References": "<1457540381-20274-1-git-send-email-olivier.matz@6wind.com>",
        "Subject": "[dpdk-dev] [RFC 25/35] mempool: introduce a function to free a\n\tmempool",
        "X-BeenThere": "dev@dpdk.org",
        "X-Mailman-Version": "2.1.15",
        "Precedence": "list",
        "List-Id": "patches and discussions about DPDK <dev.dpdk.org>",
        "List-Unsubscribe": "<http://dpdk.org/ml/options/dev>,\n\t<mailto:dev-request@dpdk.org?subject=unsubscribe>",
        "List-Archive": "<http://dpdk.org/ml/archives/dev/>",
        "List-Post": "<mailto:dev@dpdk.org>",
        "List-Help": "<mailto:dev-request@dpdk.org?subject=help>",
        "List-Subscribe": "<http://dpdk.org/ml/listinfo/dev>,\n\t<mailto:dev-request@dpdk.org?subject=subscribe>",
        "Errors-To": "dev-bounces@dpdk.org",
        "Sender": "\"dev\" <dev-bounces@dpdk.org>"
    },
    "content": "Introduce rte_mempool_free() that:\n\n- unlink the mempool from the global list if it is found\n- free all the memory chunks using their free callbacks\n- free the internal ring\n- free the memzone containing the mempool\n\nCurrently this function is only used in error cases when\ncreating a new mempool, but it will be made public later\nin the patch series.\n\nSigned-off-by: Olivier Matz <olivier.matz@6wind.com>\n---\n lib/librte_mempool/rte_mempool.c | 36 ++++++++++++++++++++++++++++++------\n 1 file changed, 30 insertions(+), 6 deletions(-)",
    "diff": "diff --git a/lib/librte_mempool/rte_mempool.c b/lib/librte_mempool/rte_mempool.c\nindex 9e2b72b..4b74ffd 100644\n--- a/lib/librte_mempool/rte_mempool.c\n+++ b/lib/librte_mempool/rte_mempool.c\n@@ -618,6 +618,35 @@ rte_mempool_populate_default(struct rte_mempool *mp)\n \treturn ret;\n }\n \n+/* free a mempool */\n+static void\n+rte_mempool_free(struct rte_mempool *mp)\n+{\n+\tstruct rte_mempool_list *mempool_list = NULL;\n+\tstruct rte_tailq_entry *te;\n+\n+\tif (mp == NULL)\n+\t\treturn;\n+\n+\tmempool_list = RTE_TAILQ_CAST(rte_mempool_tailq.head, rte_mempool_list);\n+\trte_rwlock_write_lock(RTE_EAL_TAILQ_RWLOCK);\n+\t/* find out tailq entry */\n+\tTAILQ_FOREACH(te, mempool_list, next) {\n+\t\tif (te->data == (void *)mp)\n+\t\t\tbreak;\n+\t}\n+\n+\tif (te != NULL) {\n+\t\tTAILQ_REMOVE(mempool_list, te, next);\n+\t\trte_free(te);\n+\t}\n+\trte_rwlock_write_unlock(RTE_EAL_TAILQ_RWLOCK);\n+\n+\trte_mempool_free_memchunks(mp);\n+\trte_ring_free(mp->ring);\n+\trte_memzone_free(mp->mz);\n+}\n+\n /*\n  * Create the mempool over already allocated chunk of memory.\n  * That external memory buffer can consists of physically disjoint pages.\n@@ -777,12 +806,7 @@ rte_mempool_xmem_create(const char *name, unsigned n, unsigned elt_size,\n \n exit_unlock:\n \trte_rwlock_write_unlock(RTE_EAL_MEMPOOL_RWLOCK);\n-\tif (mp != NULL) {\n-\t\trte_mempool_free_memchunks(mp);\n-\t\trte_ring_free(mp->ring);\n-\t}\n-\trte_free(te);\n-\trte_memzone_free(mz);\n+\trte_mempool_free(mp);\n \n \treturn NULL;\n }\n",
    "prefixes": [
        "dpdk-dev",
        "RFC",
        "25/35"
    ]
}