bump version to 0.7.7-pve1~bpo9

[zfsonlinux.git] / zfs-patches / 0033-Clarify-zinject-8-explanation-of-e.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Olaf Faaland <faaland1@llnl.gov>
Date: Thu, 15 Feb 2018 09:50:06 -0800
Subject: [PATCH] Clarify zinject(8) explanation of -e
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Error injection of EIO or ENXIO simply sets the zio's io_error value,
rather than preventing the read or write from occurring.  This is
important information as it affects how the probes must be used.

Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Signed-off-by: Olaf Faaland <faaland1@llnl.gov>
Closes #7172
(cherry picked from commit 26941ce90b8f056949a3bc29da606513af799781)
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
---
 man/man8/zinject.8 | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/man/man8/zinject.8 b/man/man8/zinject.8
index 50fecfb64..7f363974b 100644
--- a/man/man8/zinject.8
+++ b/man/man8/zinject.8
@@ -111,6 +111,9 @@ Specify
 .BR "dtl" " for an ECHILD error,"
 .BR "io" " for an EIO error where reopening the device will succeed, or"
 .BR "nxio" " for an ENXIO error where reopening the device will fail."
+For EIO and ENXIO, the "failed" reads or writes still occur.  The probe simply
+sets the error value reported by the I/O pipeline so it appears the read or
+write failed.
 .TP
 .BI "\-f" " frequency"
 Only inject errors a fraction of the time. Expressed as a real number
-- 
2.14.2