From: Huaisheng Ye <yehs2007-ytc+IHgoah0@public.gmane.org>
To: mpatocka-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
snitzer-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
agk-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org
Cc: jack-AlSwsSmVLrQ@public.gmane.org,
corbet-T1hC0tSOHrs@public.gmane.org,
linux-nvdimm-hn68Rpc1hR1g9hUCZPvPmw@public.gmane.org,
linux-doc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
dm-devel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
hch-jcswGhMUV9g@public.gmane.org
Subject: [PATCH v3 4/5] Documentation/device-mapper: add optional parameter reinit
Date: Thu, 31 Jan 2019 10:29:54 +0800 [thread overview]
Message-ID: <20190131022955.9920-5-yehs2007@zoho.com> (raw)
In-Reply-To: <20190131022955.9920-1-yehs2007-ytc+IHgoah0@public.gmane.org>
From: Huaisheng Ye <yehs1-6jq1YtArVR3QT0dZR+AlfA@public.gmane.org>
Add intro and usage guide for reinit.
Signed-off-by: Huaisheng Ye <yehs1-6jq1YtArVR3QT0dZR+AlfA@public.gmane.org>
---
Documentation/device-mapper/writecache.txt | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/Documentation/device-mapper/writecache.txt b/Documentation/device-mapper/writecache.txt
index 01532b3..255c68c 100644
--- a/Documentation/device-mapper/writecache.txt
+++ b/Documentation/device-mapper/writecache.txt
@@ -45,6 +45,10 @@ Constructor parameters:
afterwards
- some underlying devices perform better with fua, some
with nofua. The user should test it
+ reinit (by default off)
+ applicable only to persistent memory - use the REINIT flag
+ when the surper block has messy data, that would cause fn ctr
+ failed to work with invalid magic or version in the superblock
Status:
1. error indicator - 0 if there was no error, otherwise error number
--
1.8.3.1
next prev parent reply other threads:[~2019-01-31 2:29 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-31 2:29 [PATCH v3 0/5] Optimize writecache when using pmem as cache Huaisheng Ye
[not found] ` <20190131022955.9920-1-yehs2007-ytc+IHgoah0@public.gmane.org>
2019-01-31 2:29 ` [PATCH v3 1/5] dm-writecache: remove unused size to writecache_flush_region Huaisheng Ye
2019-01-31 2:29 ` [PATCH v3 2/5] dm-writecache: get rid of memory_data flush to writecache_flush_entry Huaisheng Ye
2019-01-31 2:29 ` [PATCH v3 3/5] dm-writecache: expand pmem_reinit for struct dm_writecache Huaisheng Ye
2019-01-31 2:29 ` Huaisheng Ye [this message]
2019-01-31 2:29 ` [PATCH v3 5/5] dm-writecache: output seq_count within status Huaisheng Ye
2019-02-04 11:27 ` [PATCH v3 0/5] Optimize writecache when using pmem as cache Mikulas Patocka
2019-02-11 6:47 ` [External] " Huaisheng HS1 Ye
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