On Tue, Apr 14, 2020 at 11:45:16PM -0700, ira.weiny@xxxxxxxxx wrote:
> From: Ira Weiny <ira.weiny@xxxxxxxxx>
>
> In prep for the new tri-state mount option which then introduces
> XFS_MOUNT_DAX_NEVER.
>
> Signed-off-by: Ira Weiny <ira.weiny@xxxxxxxxx>
Looks straightforward,
Reviewed-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
--D
> ---
> fs/xfs/xfs_iops.c | 2 +-
> fs/xfs/xfs_mount.h | 2 +-
> fs/xfs/xfs_super.c | 8 ++++----
> 3 files changed, 6 insertions(+), 6 deletions(-)
>
> diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c
> index 81f2f93caec0..a6e634631da8 100644
> --- a/fs/xfs/xfs_iops.c
> +++ b/fs/xfs/xfs_iops.c
> @@ -1248,7 +1248,7 @@ xfs_inode_supports_dax(
> return false;
>
> /* DAX mount option or DAX iflag must be set. */
> - if (!(mp->m_flags & XFS_MOUNT_DAX) &&
> + if (!(mp->m_flags & XFS_MOUNT_DAX_ALWAYS) &&
> !(ip->i_d.di_flags2 & XFS_DIFLAG2_DAX))
> return false;
>
> diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
> index 88ab09ed29e7..54bd74088936 100644
> --- a/fs/xfs/xfs_mount.h
> +++ b/fs/xfs/xfs_mount.h
> @@ -233,7 +233,7 @@ typedef struct xfs_mount {
> allocator */
> #define XFS_MOUNT_NOATTR2 (1ULL << 25) /* disable use of attr2 format */
>
> -#define XFS_MOUNT_DAX (1ULL << 62) /* TEST ONLY! */
> +#define XFS_MOUNT_DAX_ALWAYS (1ULL << 62) /* TEST ONLY! */
>
> /*
> * Max and min values for mount-option defined I/O
> diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
> index 2094386af8ac..3863f41757d2 100644
> --- a/fs/xfs/xfs_super.c
> +++ b/fs/xfs/xfs_super.c
> @@ -129,7 +129,7 @@ xfs_fs_show_options(
> { XFS_MOUNT_GRPID, ",grpid" },
> { XFS_MOUNT_DISCARD, ",discard" },
> { XFS_MOUNT_LARGEIO, ",largeio" },
> - { XFS_MOUNT_DAX, ",dax" },
> + { XFS_MOUNT_DAX_ALWAYS, ",dax" },
> { 0, NULL }
> };
> struct xfs_mount *mp = XFS_M(root->d_sb);
> @@ -1244,7 +1244,7 @@ xfs_fc_parse_param(
> return 0;
> #ifdef CONFIG_FS_DAX
> case Opt_dax:
> - mp->m_flags |= XFS_MOUNT_DAX;
> + mp->m_flags |= XFS_MOUNT_DAX_ALWAYS;
> return 0;
> #endif
> default:
> @@ -1437,7 +1437,7 @@ xfs_fc_fill_super(
> if (XFS_SB_VERSION_NUM(&mp->m_sb) == XFS_SB_VERSION_5)
> sb->s_flags |= SB_I_VERSION;
>
> - if (mp->m_flags & XFS_MOUNT_DAX) {
> + if (mp->m_flags & XFS_MOUNT_DAX_ALWAYS) {
> bool rtdev_is_dax = false, datadev_is_dax;
>
> xfs_warn(mp,
> @@ -1451,7 +1451,7 @@ xfs_fc_fill_super(
> if (!rtdev_is_dax && !datadev_is_dax) {
> xfs_alert(mp,
> "DAX unsupported by block device. Turning off DAX.");
> - mp->m_flags &= ~XFS_MOUNT_DAX;
> + mp->m_flags &= ~XFS_MOUNT_DAX_ALWAYS;
> }
> if (xfs_sb_version_hasreflink(&mp->m_sb)) {
> xfs_alert(mp,
> --
> 2.25.1
>
