xfs: convert remaining mount flags to state flags
The remaining mount flags kept in m_flags are actually runtime state
flags. These change dynamically, so they really should be updated
atomically so we don't potentially lose an update due to racing
modifications.
Convert these remaining flags to be stored in m_opstate and use
atomic bitops to set and clear the flags. This also adds a couple of
simple wrappers for common state checks - read only and shutdown.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
diff --git a/fs/xfs/xfs_export.c b/fs/xfs/xfs_export.c
index cb359ec..1064c23 100644
--- a/fs/xfs/xfs_export.c
+++ b/fs/xfs/xfs_export.c
@@ -44,6 +44,7 @@ xfs_fs_encode_fh(
int *max_len,
struct inode *parent)
{
+ struct xfs_mount *mp = XFS_M(inode->i_sb);
struct fid *fid = (struct fid *)fh;
struct xfs_fid64 *fid64 = (struct xfs_fid64 *)fh;
int fileid_type;
@@ -63,8 +64,7 @@ xfs_fs_encode_fh(
* large enough filesystem may contain them, thus the slightly
* confusing looking conditional below.
*/
- if (!xfs_has_small_inums(XFS_M(inode->i_sb)) ||
- (XFS_M(inode->i_sb)->m_flags & XFS_MOUNT_32BITINODES))
+ if (!xfs_has_small_inums(mp) || xfs_is_inode32(mp))
fileid_type |= XFS_FILEID_TYPE_64FLAG;
/*