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[130.117.225.111]) by mx.google.com with ESMTPS id ffacd0b85a97d-4887a30b8casi6026059f8f.3.2026.09.25.09.53.38 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 25 Sep 2026 09:53:38 -0700 (PDT) Received-SPF: pass (google.com: domain of khorenko@virtuozzo.com designates 130.117.225.111 as permitted sender) client-ip=130.117.225.111; Authentication-Results: mx.google.com; dkim=pass header.i=@virtuozzo.com header.s=relay header.b="VU3zN/3+"; spf=pass (google.com: domain of khorenko@virtuozzo.com designates 130.117.225.111 as permitted sender) smtp.mailfrom=khorenko@virtuozzo.com; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=virtuozzo.com DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=virtuozzo.com; s=relay; h=Message-Id:Content-Type:MIME-Version:Subject:Date :From; bh=foEvaaaxUlFTLikAqZYOY5VPvbupHC9OjymlWeEFf94=; b=VU3zN/3+0l9aeSLkR5y 5H0qpCcqGDXxDBqOKfqb633Qajp6Y/rpXDCqPHNII54hZluKM/ta54wU1D1Res3JoJuW4G6NHqSoK YO5rmrB8P71l+EcSKMQ0gj55UEXkN3kI7HA8rTwedGEeQna9/u/sncUlWirzYvkzBc84CuqAgwFT4 YX9RD4+FOH7qpy5mVwvzvXlUUt3L4Q5YQsspElrEYvGQfZsIAEIcF0TaO7NFxl52TfrDu9WSe3yZI /jYCK+pCZvXJoqKuEiiCoUv+k1XcRJnrM6p5H3FXgoTu5L6gFwO/Qv9fRksqln4hAyFCccnz02h6U XUfmD5tqyJw01RA==; Received: from ch-demo-asa.virtuozzo.com ([130.117.225.8] helo=f0.sw.ru) by relay.virtuozzo.com with esmtp (Exim 4.96) (envelope-from ) id 1xA985-00CFkL-2i; Fri, 25 Sep 2026 18:53:34 +0200 From: Konstantin Khorenko Date: Fri, 25 Sep 2026 18:53:30 +0200 MIME-Version: 1.0 Message-Id: <20260925-b4-kh-ve_fail-v10-9-77a6b6ea4205@virtuozzo.com> References: <20260925-b4-kh-ve_fail-v10-0-77a6b6ea4205@virtuozzo.com> In-Reply-To: <20260925-b4-kh-ve_fail-v10-0-77a6b6ea4205@virtuozzo.com> To: Vasileios Almpanis , Pavel Tikhomirov , cover.1789491989.git.vladimir.riabchun@virtuozzo.com, Konstantin Khorenko , devel@openvz.org X-Mailer: b4 0.16.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=2703; i=khorenko@virtuozzo.com; h=from:subject:message-id; bh=j842Rm5ieAwMCHyAxeGSmTH6pYXKlRV9to6m9C9MAdk=; b=owEBbQKS/ZANAwAKAVGWCkf5YVwqAcsmYgBqtqcNltmHYatUUABP0++M92N+LJuUkut3XYsAn JDWs2iyV2eJAjMEAAEKAB0WIQRWD23IPcXT0GO9CCxRlgpH+WFcKgUCaranDQAKCRBRlgpH+WFc KsttD/4phaPSb5N+Qz98PFhtGo5yNm+BwQIv0NjsiuRYInHde4VYWAXohy0L+JgnxqxCPSD2x5r UdSgsZquRWMoyULQmGAxjQEkU0+T+iAX+fzoXE6H4k0tw1s5eSdNkr9afGz7l3NcHkls4uTLXRz /xbICG1rCI3rjvevYGIwaYMmACy/hGyRju3jjUIsTUpU+4H7gPlUFAR56BA2YHLDlYs7PtcHWFG bAR+mq/bZ3ik0mTqtAz3M33j0EGO2jkFsEt+dgKtaJ3/Dt5Tydnyw7qtW9kRdxb1Oaz8x2Q0LAW RehQXGm0H2RAGjeRtxtF4F9Tb7duAsMIXPckyh/0+KRr53VO8j1WJcMoVy29kfbYdRqlSLcXNwh wt3pDjVexJYOKMw0rFevRtB19A+IpeL3LohYwxFNVCmmIX7g/6s5Mshe31Fbyzq5hbE29Goclky zYFAJ1yYVHWrcVIYVRLkk7J3e+lBRragH4dLA/fyVo0oQYJbHvHdsYsyXxuyDDDpxtmpK4ssTYX 4T25UV/0KWq9Ch/hoLjr8C1SBQFLqfhAxxNsP8/EkQ9VgHtxMk9SuIFr/bKdOI1FmdF/6fG1DuG 3SyQPAQTevLXbUylK8OOLuRhKrzXCkLN2b423NRJITyv5oMJqwGMS0KcyeIsnsFRuXe7yBTAQK+ UJ2eDLl9rksQDjQ== X-Developer-Key: i=khorenko@virtuozzo.com; a=openpgp; fpr=560F6DC83DC5D3D063BD082C51960A47F9615C2A X-OZ-Fwd: true Subject: [Devel] [PATCH hci-8.1 v10 09/13] ve: add mnt failcounter X-BeenThere: devel@openvz.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: OpenVZ development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: devel-bounces@openvz.org Errors-To: devel-bounces@openvz.org From: Vladimir Riabchun Count hits of the per-VE mount limit in ve.failcount. The old warning in alloc_vfsmnt is dropped, otherwise every failed mount would produce two ratelimited messages. The one printed by ve_failcount_inc also names the counter to look at and goes to the container log as well. https://virtuozzo.atlassian.net/browse/VSTOR-135520 Feature: per-ve failcounters Signed-off-by: Vladimir Riabchun Signed-off-by: Konstantin Khorenko --- fs/namespace.c | 8 +++----- include/linux/ve.h | 1 + kernel/ve/ve.c | 3 +++ 3 files changed, 7 insertions(+), 5 deletions(-) diff --git a/fs/namespace.c b/fs/namespace.c index 1d6e66cd71745..cf77c3fb98407 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -329,12 +329,8 @@ static struct mount *alloc_vfsmnt(const char *name, struct ve_struct *owner_ve) if (!ve) ve = get_exec_env(); - if (!ve_try_reserve_mount(ve)) { - pr_warn_ratelimited( - "CT#%s reached the limit on mounts.\n", - ve_name(ve)); + if (!ve_try_reserve_mount(ve)) return NULL; - } mnt = kmem_cache_zalloc(mnt_cache, GFP_KERNEL); if (mnt) { @@ -3380,6 +3376,8 @@ static inline int ve_try_reserve_mount(struct ve_struct *ve) if (ret) get_ve(ve); + else + ve_failcount_inc(ve, mnt); return ret; } diff --git a/include/linux/ve.h b/include/linux/ve.h index 969390bb511e7..0395e37208849 100644 --- a/include/linux/ve.h +++ b/include/linux/ve.h @@ -103,6 +103,7 @@ struct ve_struct { * other containers. */ atomic_t mnt_avail_nr; /* number of available VE mounts */ + atomic_t mnt_failcount; int mnt_max_nr; #ifdef CONFIG_COREDUMP diff --git a/kernel/ve/ve.c b/kernel/ve/ve.c index 56936ef4cc92b..4c3acda6b135e 100644 --- a/kernel/ve/ve.c +++ b/kernel/ve/ve.c @@ -118,6 +118,7 @@ struct ve_struct ve0 = { .nd_neigh_nr = ATOMIC_INIT(0), .mnt_avail_nr = ATOMIC_INIT(INT_MAX), .mnt_max_nr = INT_MAX, + .mnt_failcount = ATOMIC_INIT(0), #ifdef CONFIG_AIO .aio_nr_lock = __SPIN_LOCK_UNLOCKED(ve0.aio_nr_lock), .aio_nr = 0, @@ -829,6 +830,7 @@ static struct cgroup_subsys_state *ve_create(struct cgroup_subsys_state *parent_ atomic_set(&ve->arp_neigh_nr, 0); atomic_set(&ve->nd_neigh_nr, 0); ve->mnt_max_nr = MNT_MAX_NR_DEFAULT; + atomic_set(&ve->mnt_failcount, 0); atomic_set(&ve->mnt_avail_nr, MNT_MAX_NR_DEFAULT); #ifdef CONFIG_COREDUMP @@ -1087,6 +1089,7 @@ static const struct ve_failcount_entry { } ve_failcounts[] = { #define VE_FC_ENTRY(name) { #name, offsetof(struct ve_struct, name##_failcount) } VE_FC_ENTRY(netns), + VE_FC_ENTRY(mnt), {} }; -- 2.43.0 _______________________________________________ Devel mailing list Devel@openvz.org https://lists.openvz.org/mailman/listinfo/devel