diff options
| author | Dave Jiang <dave.jiang@intel.com> | 2018-05-30 13:03:46 -0700 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2018-05-31 08:58:34 -0700 |
| commit | 80660f20252d6f76c9f203874ad7c7a4a8508cf8 (patch) | |
| tree | 6b34e3aff86d4455a595f37d0b2d5edc693a8bb4 /fs/xfs | |
| parent | ba23cba9b3bdc967aabdc6ff1e3e9b11ce05bb4f (diff) | |
| download | linux-80660f20252d6f76c9f203874ad7c7a4a8508cf8.tar.bz2 | |
dax: change bdev_dax_supported() to support boolean returns
The function return values are confusing with the way the function is
named. We expect a true or false return value but it actually returns
0/-errno. This makes the code very confusing. Changing the return values
to return a bool where if DAX is supported then return true and no DAX
support returns false.
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Diffstat (limited to 'fs/xfs')
| -rw-r--r-- | fs/xfs/xfs_ioctl.c | 4 | ||||
| -rw-r--r-- | fs/xfs/xfs_super.c | 12 |
2 files changed, 8 insertions, 8 deletions
diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c index c9a5b75a73a8..5dd9e22b4a4c 100644 --- a/fs/xfs/xfs_ioctl.c +++ b/fs/xfs/xfs_ioctl.c @@ -1103,8 +1103,8 @@ xfs_ioctl_setattr_dax_invalidate( if (fa->fsx_xflags & FS_XFLAG_DAX) { if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode))) return -EINVAL; - if (bdev_dax_supported(xfs_find_bdev_for_inode(VFS_I(ip)), - sb->s_blocksize) < 0) + if (!bdev_dax_supported(xfs_find_bdev_for_inode(VFS_I(ip)), + sb->s_blocksize)) return -EINVAL; } diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c index fed63e0b8f4d..4e66e61865fb 100644 --- a/fs/xfs/xfs_super.c +++ b/fs/xfs/xfs_super.c @@ -1701,17 +1701,17 @@ xfs_fs_fill_super( sb->s_flags |= SB_I_VERSION; if (mp->m_flags & XFS_MOUNT_DAX) { - int error2 = 0; + bool rtdev_is_dax = false, datadev_is_dax; xfs_warn(mp, "DAX enabled. Warning: EXPERIMENTAL, use at your own risk"); - error = bdev_dax_supported(mp->m_ddev_targp->bt_bdev, - sb->s_blocksize); + datadev_is_dax = bdev_dax_supported(mp->m_ddev_targp->bt_bdev, + sb->s_blocksize); if (mp->m_rtdev_targp) - error2 = bdev_dax_supported(mp->m_rtdev_targp->bt_bdev, - sb->s_blocksize); - if (error && error2) { + rtdev_is_dax = bdev_dax_supported( + mp->m_rtdev_targp->bt_bdev, sb->s_blocksize); + if (!rtdev_is_dax && !datadev_is_dax) { xfs_alert(mp, "DAX unsupported by block device. Turning off DAX."); mp->m_flags &= ~XFS_MOUNT_DAX; |