Re: [PATCH v7 14/14] xfs: allow sysadmins to specify a maximum atomic write limit at mount time
From: Randy Dunlap
Date: Tue Apr 15 2025 - 11:36:25 EST
On 4/15/25 5:14 AM, John Garry wrote:
> diff --git a/Documentation/admin-guide/xfs.rst b/Documentation/admin-guide/xfs.rst
> index b67772cf36d6..715019ec4f24 100644
> --- a/Documentation/admin-guide/xfs.rst
> +++ b/Documentation/admin-guide/xfs.rst
> @@ -143,6 +143,14 @@ When mounting an XFS filesystem, the following options are accepted.
> optional, and the log section can be separate from the data
> section or contained within it.
>
> + max_atomic_write=value
> + Set the maximum size of an atomic write. The size may be
> + specified in bytes, in kilobytes with a "k" suffix, in megabytes
> + with a "m" suffix, or in gigabytes with a "g" suffix.
> +
> + The default value is to set the maximum io completion size
Preferably I/O or IO
> + to allow each CPU to handle one at a time.
> +
--
~Randy