diff options
Diffstat (limited to 'fs/xfs/xfs_log.c')
| -rw-r--r-- | fs/xfs/xfs_log.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c index 9bfb69e..db09e1e 100644 --- a/fs/xfs/xfs_log.c +++ b/fs/xfs/xfs_log.c @@ -949,6 +949,19 @@ xlog_iodone(xfs_buf_t *bp) l = iclog->ic_log; /* + * If the ordered flag has been removed by a lower + * layer, it means the underlyin device no longer supports + * barrier I/O. Warn loudly and turn off barriers. + */ + if ((l->l_mp->m_flags & XFS_MOUNT_BARRIER) && !XFS_BUF_ORDERED(bp)) { + l->l_mp->m_flags &= ~XFS_MOUNT_BARRIER; + xfs_fs_cmn_err(CE_WARN, l->l_mp, + "xlog_iodone: Barriers are no longer supported" + " by device. Disabling barriers\n"); + xfs_buftrace("XLOG_IODONE BARRIERS OFF", bp); + } + + /* * Race to shutdown the filesystem if we see an error. */ if (XFS_TEST_ERROR((XFS_BUF_GETERROR(bp)), l->l_mp, |