From fd8febbd1e6ff3d3eec6b9d395ab65400769da19 Mon Sep 17 00:00:00 2001
From: Turbo Fredriksson <turbo@bayour.com>
Date: Tue, 17 Dec 2013 21:53:52 +0000
Subject: [PATCH] Add zfs_send_corrupt_data module option

Tuning setting to ignore read/checksum errors when sending data.

Signed-off-by: Turbo Fredriksson <turbo@bayour.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #1982
Issue #1897
---
 man/man5/zfs-module-parameters.5 | 11 +++++++++++
 module/zfs/dmu_send.c            |  5 +++++
 2 files changed, 16 insertions(+)

diff --git a/man/man5/zfs-module-parameters.5 b/man/man5/zfs-module-parameters.5
index 00d12b087..d33da62f4 100644
--- a/man/man5/zfs-module-parameters.5
+++ b/man/man5/zfs-module-parameters.5
@@ -873,6 +873,17 @@ Number of ticks to delay scrub
 Default value: \fB4\fR.
 .RE
 
+.sp
+.ne 2
+.na
+\fBzfs_send_corrupt_data\fR (int)
+.ad
+.RS 12n
+Allow to send corrupt data (ignore read/checksum errors when sending data)
+.sp
+Use \fB1\fR for yes and \fB0\fR for no (default).
+.RE
+
 .sp
 .ne 2
 .na
diff --git a/module/zfs/dmu_send.c b/module/zfs/dmu_send.c
index 7524c2dcf..9264fbb27 100644
--- a/module/zfs/dmu_send.c
+++ b/module/zfs/dmu_send.c
@@ -1849,3 +1849,8 @@ dmu_objset_is_receiving(objset_t *os)
 	return (os->os_dsl_dataset != NULL &&
 	    os->os_dsl_dataset->ds_owner == dmu_recv_tag);
 }
+
+#if defined(_KERNEL)
+module_param(zfs_send_corrupt_data, int, 0644);
+MODULE_PARM_DESC(zfs_send_corrupt_data, "Allow sending corrupt data");
+#endif