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> --- 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
