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From: Tony Asleson <tasleson@redhat.com>
To: linux-scsi@vger.kernel.org, linux-block@vger.kernel.org,
	linux-fsdevel@vger.kernel.org
Subject: [RFC 6/9] create_syslog_header: Add durable name
Date: Mon, 23 Dec 2019 16:55:55 -0600	[thread overview]
Message-ID: <20191223225558.19242-7-tasleson@redhat.com> (raw)
In-Reply-To: <20191223225558.19242-1-tasleson@redhat.com>

This gets us a persistent durable name for code that logs messages in the
block layer that have the appropriate callbacks setup for durable name.

Signed-off-by: Tony Asleson <tasleson@redhat.com>
---
 drivers/base/core.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/base/core.c b/drivers/base/core.c
index 93cc1c45e9d3..57b5f5cd29fc 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -3318,6 +3318,15 @@ create_syslog_header(const struct device *dev, char *hdr, size_t hdrlen)
 				"DEVICE=+%s:%s", subsys, dev_name(dev));
 	}
 
+	if (dev->type && dev->type->durable_name) {
+		int dlen;
+
+		dlen = dev_durable_name(dev, hdr + (pos + 1),
+					hdrlen - (pos + 1));
+		if (dlen)
+			pos += dlen + 1;
+	}
+
 	if (pos >= hdrlen)
 		goto overflow;
 
-- 
2.21.0


  parent reply	other threads:[~2019-12-23 22:56 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-23 22:55 [RFC 0/9] Add persistent durable identifier to storage log messages Tony Asleson
2019-12-23 22:55 ` [RFC 1/9] lib/string: Add function to trim duplicate WS Tony Asleson
2019-12-23 23:28   ` Matthew Wilcox
2020-01-02 22:52     ` Tony Asleson
2020-01-03 14:30       ` Tony Asleson
2019-12-23 22:55 ` [RFC 2/9] printk: Bring back printk_emit Tony Asleson
2019-12-23 22:55 ` [RFC 3/9] printk: Add printk_emit_ratelimited macro Tony Asleson
2019-12-23 22:55 ` [RFC 4/9] struct device_type: Add function callback durable_name Tony Asleson
2019-12-23 22:55 ` [RFC 5/9] block: Add support functions for persistent durable name Tony Asleson
2019-12-23 22:55 ` Tony Asleson [this message]
2019-12-24  0:54   ` [RFC 6/9] create_syslog_header: Add " James Bottomley
2020-01-02 22:53     ` Tony Asleson
2019-12-23 22:55 ` [RFC 7/9] print_req_error: Add persistent " Tony Asleson
2019-12-23 22:55 ` [RFC 8/9] ata_dev_printk: Add durable name to output Tony Asleson
2019-12-24  0:56   ` James Bottomley
2019-12-23 22:55 ` [RFC 9/9] __xfs_printk: " Tony Asleson
2020-01-04  2:56   ` Dave Chinner
2020-01-06  2:45     ` Tony Asleson
2020-01-06 22:02       ` Dave Chinner
2020-01-07  0:19         ` Sweet Tea Dorminy
2020-01-07  1:23           ` Dave Chinner
2020-01-07 17:01             ` Tony Asleson
2020-01-08  2:10               ` Dave Chinner
2020-01-08 16:53                 ` Tony Asleson
2020-01-09  1:41                   ` Alasdair G Kergon
2020-01-09 23:22                     ` Dave Chinner
2020-01-10  1:28                       ` Alasdair G Kergon
2020-01-10 16:13                     ` Tony Asleson
2019-12-24  0:50 ` [RFC 0/9] Add persistent durable identifier to storage log messages James Bottomley
2020-01-02 22:52   ` Tony Asleson

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