mdadm/0105-manpage-Add-write-zeroes-option-to-manpage.patch
Xiao Ni 72c1204567 Update to latest upstream and fix mdcheck service bug
Now mdcheck service can't be run successfully. We need to put mdcheck in to the
right place (/usr/share/mdadm/mdcheck) and it needs to remove the dependency of
mdadm_env.sh which is fixed in patch 76c224c6c.

And there is a history problem. It needed KillMode=none before, so it removed
the upstream patch 52c67fcdd. Now this problem has been fixed, so we can do the
backport more easilly now. We don't need to remove the upstream patch here again.

It adds a rhel only feature too for transient failure.

Resolves: rhbz#2159923, rhbz#2150865, rhbz#2124071, rhbz#2203859

Signed-off-by: Xiao Ni <xni@redhat.com>
2023-05-16 10:41:01 +08:00

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2.0 KiB
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From 33831d845a48b9a2ac4d1e954c88a3dd8cb15753 Mon Sep 17 00:00:00 2001
From: Logan Gunthorpe <logang@deltatee.com>
Date: Wed, 1 Mar 2023 13:41:35 -0700
Subject: [PATCH 105/125] manpage: Add --write-zeroes option to manpage
Document the new --write-zeroes option in the manpage.
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Acked-by: Kinga Tanska <kinga.tanska@linux.intel.com>
Reviewed-by: Xiao Ni <xni@redhat.com>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Acked-by: Coly Li <colyli@suse.de>
Signed-off-by: Jes Sorensen <jes@trained-monkey.org>
---
mdadm.8.in | 18 +++++++++++++++++-
1 file changed, 17 insertions(+), 1 deletion(-)
diff --git a/mdadm.8.in b/mdadm.8.in
index 64f71ed1..6f0f6c13 100644
--- a/mdadm.8.in
+++ b/mdadm.8.in
@@ -837,6 +837,22 @@ array is resynced at creation. From Linux version 3.0,
.B \-\-assume\-clean
can be used with that command to avoid the automatic resync.
+.TP
+.BR \-\-write-zeroes
+When creating an array, send write zeroes requests to all the block
+devices. This should zero the data area on all disks such that the
+initial sync is not necessary and, if successfull, will behave
+as if
+.B \-\-assume\-clean
+was specified.
+.IP
+This is intended for use with devices that have hardware offload for
+zeroing, but despite this zeroing can still take several minutes for
+large disks. Thus a message is printed before and after zeroing and
+each disk is zeroed in parallel with the others.
+.IP
+This is only meaningful with --create.
+
.TP
.BR \-\-backup\-file=
This is needed when
@@ -1370,7 +1386,7 @@ and
.B layout\-alternate
options are for RAID0 arrays with non-uniform devices size that were in
use before Linux 5.4. If the array was being used with Linux 3.13 or
-earlier, then to assemble the array on a new kernel,
+earlier, then to assemble the array on a new kernel,
.B \-\-update=layout\-original
must be given. If the array was created and used with a kernel from Linux 3.14 to
Linux 5.3, then
--
2.38.1