From: Borislav Petkov <bp@alien8.de>
To: linux-edac <linux-edac@vger.kernel.org>
Cc: Borislav Petkov <bp@suse.de>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
Len Brown <lenb@kernel.org>, Tony Luck <tony.luck@intel.com>,
Tomasz Nowicki <tomasz.nowicki@linaro.org>,
"Chen, Gong" <gong.chen@linux.intel.com>,
Wolfram Sang <wsa@the-dreams.de>, Lv Zheng <lv.zheng@intel.com>,
Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>,
linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [RFC PATCH 1/5] GHES: Carve out error queueing in a separate function
Date: Fri, 27 Mar 2015 10:22:54 +0100 [thread overview]
Message-ID: <1427448178-20689-2-git-send-email-bp@alien8.de> (raw)
In-Reply-To: <1427448178-20689-1-git-send-email-bp@alien8.de>
From: Borislav Petkov <bp@suse.de>
Make the handler more readable.
No functionality change.
Signed-off-by: Borislav Petkov <bp@suse.de>
---
drivers/acpi/apei/ghes.c | 51 +++++++++++++++++++++++++++---------------------
1 file changed, 29 insertions(+), 22 deletions(-)
diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
index e82d0976a5d0..fe1e41bf5609 100644
--- a/drivers/acpi/apei/ghes.c
+++ b/drivers/acpi/apei/ghes.c
@@ -797,6 +797,32 @@ static void ghes_print_queued_estatus(void)
}
}
+/* Save estatus for further processing in IRQ context */
+static void __process_error(struct ghes *ghes)
+{
+#ifdef CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG
+ u32 len, node_len;
+ struct ghes_estatus_node *estatus_node;
+ struct acpi_hest_generic_status *estatus;
+
+ if (ghes_estatus_cached(ghes->estatus))
+ return;
+
+ len = cper_estatus_len(ghes->estatus);
+ node_len = GHES_ESTATUS_NODE_LEN(len);
+
+ estatus_node = (void *)gen_pool_alloc(ghes_estatus_pool, node_len);
+ if (!estatus_node)
+ return;
+
+ estatus_node->ghes = ghes;
+ estatus_node->generic = ghes->generic;
+ estatus = GHES_ESTATUS_FROM_NODE(estatus_node);
+ memcpy(estatus, ghes->estatus, len);
+ llist_add(&estatus_node->llnode, &ghes_estatus_llist);
+#endif
+}
+
static int ghes_notify_nmi(unsigned int cmd, struct pt_regs *regs)
{
struct ghes *ghes, *ghes_global = NULL;
@@ -832,32 +858,13 @@ static int ghes_notify_nmi(unsigned int cmd, struct pt_regs *regs)
}
list_for_each_entry_rcu(ghes, &ghes_nmi, list) {
-#ifdef CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG
- u32 len, node_len;
- struct ghes_estatus_node *estatus_node;
- struct acpi_hest_generic_status *estatus;
-#endif
if (!(ghes->flags & GHES_TO_CLEAR))
continue;
-#ifdef CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG
- if (ghes_estatus_cached(ghes->estatus))
- goto next;
- /* Save estatus for further processing in IRQ context */
- len = cper_estatus_len(ghes->estatus);
- node_len = GHES_ESTATUS_NODE_LEN(len);
- estatus_node = (void *)gen_pool_alloc(ghes_estatus_pool,
- node_len);
- if (estatus_node) {
- estatus_node->ghes = ghes;
- estatus_node->generic = ghes->generic;
- estatus = GHES_ESTATUS_FROM_NODE(estatus_node);
- memcpy(estatus, ghes->estatus, len);
- llist_add(&estatus_node->llnode, &ghes_estatus_llist);
- }
-next:
-#endif
+
+ __process_error(ghes);
ghes_clear_estatus(ghes);
}
+
#ifdef CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG
irq_work_queue(&ghes_proc_irq_work);
#endif
--
2.3.3
next prev parent reply other threads:[~2015-03-27 9:25 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-27 9:22 [RFC PATCH 0/5] GHES NMI handler cleanup Borislav Petkov
2015-03-27 9:22 ` Borislav Petkov [this message]
2015-03-27 9:22 ` [RFC PATCH 2/5] GHES: Carve out the panic functionality Borislav Petkov
2015-03-27 9:22 ` [RFC PATCH 3/5] GHES: Panic right after detection Borislav Petkov
2015-03-27 9:22 ` [RFC PATCH 4/5] GHES: Elliminate double-loop in the NMI handler Borislav Petkov
2015-03-27 9:22 ` [RFC PATCH 5/5] GHES: Make NMI handler have a single reader Borislav Petkov
2015-04-01 7:45 ` Jiri Kosina
2015-04-01 13:49 ` Borislav Petkov
2015-04-23 8:39 ` Jiri Kosina
2015-04-23 8:59 ` Borislav Petkov
2015-04-23 18:00 ` Luck, Tony
2015-04-27 20:23 ` Borislav Petkov
2015-04-28 14:30 ` Don Zickus
2015-04-28 14:42 ` Don Zickus
2015-04-28 14:55 ` Borislav Petkov
2015-04-28 15:35 ` Don Zickus
2015-04-28 16:22 ` Borislav Petkov
2015-04-28 18:44 ` Don Zickus
2015-05-04 15:40 ` Borislav Petkov
2015-04-27 3:16 ` Zheng, Lv
2015-04-27 8:46 ` Borislav Petkov
2015-04-28 0:44 ` Zheng, Lv
2015-04-28 2:24 ` Zheng, Lv
2015-04-28 7:38 ` Borislav Petkov
2015-04-28 13:38 ` Zheng, Lv
2015-04-28 13:59 ` Borislav Petkov
2015-04-29 0:24 ` Zheng, Lv
2015-04-29 0:49 ` Zheng, Lv
2015-04-29 8:13 ` Borislav Petkov
2015-04-30 8:05 ` Zheng, Lv
2015-04-30 8:48 ` Borislav Petkov
2015-05-02 0:34 ` Zheng, Lv
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