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fs/xfs: Change XFS_MOUNT_DAX to XFS_MOUNT_DAX_ALWAYS 

In prep for the new tri-state mount option which then introduces
XFS_MOUNT_DAX_NEVER.

Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
This commit is contained in:
Ira Weiny 2020-05-04 09:02:41 -07:00 committed by Darrick J. Wong
parent d45344d6c4
commit 606723d982
3 changed files with 6 additions and 7 deletions
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2
fs/xfs/xfs_iops.c
View File

@ -1243,7 +1243,7 @@ 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;

3
fs/xfs/xfs_mount.h
View File

@ -237,8 +237,7 @@ typedef struct xfs_mount {
#define XFS_MOUNT_FILESTREAMS (1ULL << 24) /* enable the filestreams
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 << 26)
/*
* Max and min values for mount-option defined I/O

8
fs/xfs/xfs_super.c
View File

@ -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);
@ -1261,7 +1261,7 @@ 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:
@ -1454,7 +1454,7 @@ 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,
@ -1468,7 +1468,7 @@ 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,