diff options
Diffstat (limited to 'fs/xfs/libxfs/xfs_sb.c')
| -rw-r--r-- | fs/xfs/libxfs/xfs_sb.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/fs/xfs/libxfs/xfs_sb.c b/fs/xfs/libxfs/xfs_sb.c index a35344ae4951..ea6c85a4c27c 100644 --- a/fs/xfs/libxfs/xfs_sb.c +++ b/fs/xfs/libxfs/xfs_sb.c @@ -961,6 +961,36 @@ xfs_update_secondary_sbs( return saved_error ? saved_error : error; } +/* + * Same behavior as xfs_sync_sb, except that it is always synchronous and it + * also writes the superblock buffer to disk sector 0 immediately. + */ +int +xfs_sync_sb_buf( + struct xfs_mount *mp) +{ + struct xfs_trans *tp; + int error; + + error = xfs_trans_alloc(mp, &M_RES(mp)->tr_sb, 0, 0, 0, &tp); + if (error) + return error; + + xfs_log_sb(tp); + xfs_trans_bhold(tp, mp->m_sb_bp); + xfs_trans_set_sync(tp); + error = xfs_trans_commit(tp); + if (error) + goto out; + /* + * write out the sb buffer to get the changes to disk + */ + error = xfs_bwrite(mp->m_sb_bp); +out: + xfs_buf_relse(mp->m_sb_bp); + return error; +} + int xfs_fs_geometry( struct xfs_sb *sbp, |