From: Carlos Maiolino <cmaiolino@redhat.com>
To: linux-xfs@vger.kernel.org
Subject: [PATCH] Add dax mount option to man xfs(5)
Date: Mon, 15 Mar 2021 16:02:50 +0100 [thread overview]
Message-ID: <20210315150250.11870-1-cmaiolino@redhat.com> (raw)
Details are already in kernel's documentation, but make dax mount option
information accessible through xfs(5) manpage.
Signed-off-by: Carlos Maiolino <cmaiolino@redhat.com>
---
man/man5/xfs.5 | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/man/man5/xfs.5 b/man/man5/xfs.5
index 7642662f..46b0558a 100644
--- a/man/man5/xfs.5
+++ b/man/man5/xfs.5
@@ -133,6 +133,24 @@ by the filesystem.
CRC enabled filesystems always use the attr2 format, and so
will reject the noattr2 mount option if it is set.
.TP
+.BR dax=value
+Set DAX behavior for the current filesystem. This mount option accepts the
+following values:
+
+"dax=inode" DAX will be enabled only on files with FS_XFLAG_DAX applied.
+
+"dax=never" DAX will be disabled by the whole filesystem including files with
+FS_XFLAG_DAX applied"
+
+"dax=always" DAX will be enabled to every file in the filesystem inclduing files
+without FS_XFLAG_DAX applied"
+
+If no option is used when mounting a pmem device, dax=inode will be used as
+default.
+
+For details regarding DAX behavior in kernel, please refer to kernel's
+documentation at filesystems/dax.txt
+.TP
.BR discard | nodiscard
Enable/disable the issuing of commands to let the block
device reclaim space freed by the filesystem. This is
--
2.29.2
next reply other threads:[~2021-03-15 15:03 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-15 15:02 Carlos Maiolino [this message]
2021-04-01 10:40 ` [PATCH] Add dax mount option to man xfs(5) Carlos Maiolino
2021-04-01 15:33 ` Darrick J. Wong
2021-04-06 11:44 ` Carlos Maiolino
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210315150250.11870-1-cmaiolino@redhat.com \
--to=cmaiolino@redhat.com \
--cc=linux-xfs@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.