From 6d836e6f8b358270d55a57ad8e8868c957f15bf3 Mon Sep 17 00:00:00 2001 From: Rich Ercolani Date: Fri, 8 Jul 2016 16:51:50 -0400 Subject: Add tunable to ignore hole_birth Adds a module option which disables the hole_birth optimization which has been responsible for several recent bugs, including issue #4050. Original-patch: https://gist.github.com/pcd1193182/2c0cd47211f3aee623958b4698836c48 Signed-off-by: Rich Ercolani Signed-off-by: Brian Behlendorf Closes #4833 --- man/man5/zfs-module-parameters.5 | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'man/man5') diff --git a/man/man5/zfs-module-parameters.5 b/man/man5/zfs-module-parameters.5 index 41fc20deb..3e62a4436 100644 --- a/man/man5/zfs-module-parameters.5 +++ b/man/man5/zfs-module-parameters.5 @@ -24,6 +24,19 @@ Description of the different parameters to the ZFS module. .sp .LP +.sp +.ne 2 +.na +\fBignore_hole_birth\fR (int) +.ad +.RS 12n +When set, the hole_birth optimization will not be used, and all holes will +always be sent on zfs send. Useful if you suspect your datasets are affected +by a bug in hole_birth. +.sp +Use \fB1\fR for on and \fB0\fR (default) for off. +.RE + .sp .ne 2 .na -- cgit v1.2.3