From: Ed Cashin <ecashin@coraid.com>
To: akpm@linux-foundation.org
Cc: ecashin@coraid.com, linux-kernel@vger.kernel.org
Subject: [PATCH 1/9] aoe: describe the behavior of the "err" character device
Date: Mon, 15 Oct 2012 18:40:43 -0700 [thread overview]
Message-ID: <bee64f03a543aff4fa2869b4591b24dccc473f1b.1350331035.git.ecashin@coraid.com> (raw)
In-Reply-To: <cover.1350331035.git.ecashin@coraid.com>
Signed-off-by: Ed Cashin <ecashin@coraid.com>
---
drivers/block/aoe/aoechr.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/drivers/block/aoe/aoechr.c b/drivers/block/aoe/aoechr.c
index ed57a89..2bf6273 100644
--- a/drivers/block/aoe/aoechr.c
+++ b/drivers/block/aoe/aoechr.c
@@ -39,6 +39,11 @@ struct ErrMsg {
};
static DEFINE_MUTEX(aoechr_mutex);
+
+/* A ring buffer of error messages, to be read through
+ * "/dev/etherd/err". When no messages are present,
+ * readers will block waiting for messages to appear.
+ */
static struct ErrMsg emsgs[NMSG];
static int emsgs_head_idx, emsgs_tail_idx;
static struct completion emsgs_comp;
--
1.7.1
next prev parent reply other threads:[~2012-10-16 1:40 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-16 1:40 [PATCH 0/9] aoe: various enhancements and cleanup from v50 to v60 Ed Cashin
2012-10-16 1:40 ` Ed Cashin [this message]
2012-10-16 1:42 ` [PATCH 2/9] aoe: print warning regarding a common reason for dropped transmits Ed Cashin
2012-10-17 22:09 ` Andrew Morton
2012-10-16 1:44 ` [PATCH 3/9] aoe: update cap on outstanding commands based on config query response Ed Cashin
2012-10-16 1:46 ` [PATCH 4/9] aoe: support the forgetting (flushing) of a user-specified AoE target Ed Cashin
2012-10-16 1:48 ` [PATCH 5/9] aoe: support larger I/O requests via aoe_maxsectors module param Ed Cashin
2012-10-16 1:50 ` [PATCH 6/9] aoe: "payload" sysfs file exports per-AoE-command data transfer size Ed Cashin
2012-10-16 1:52 ` [PATCH 7/9] aoe: cleanup: remove unused ata_scnt function Ed Cashin
2012-10-16 1:54 ` [PATCH 8/9] aoe: whitespace cleanup Ed Cashin
2012-10-16 1:56 ` [PATCH 9/9] aoe: update driver-internal version number to 60 Ed Cashin
2012-10-18 1:43 [PATCH 0/9] aoe: various enhancements and cleanup from v50 to v60 Ed Cashin
2012-10-18 1:43 ` [PATCH 1/9] aoe: describe the behavior of the "err" character device Ed Cashin
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