On Mon, Mar 15, 2021 at 04:02:50PM +0100, Carlos Maiolino wrote: > Details are already in kernel's documentation, but make dax mount option > information accessible through xfs(5) manpage. > > Signed-off-by: Carlos Maiolino <cmaiolino@xxxxxxxxxx> > --- Polite ping :) > 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 > -- Carlos
