From d4f3512b0891658b6b4d5fc99567242b3fc2d6b7 Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Mon, 23 Apr 2012 15:59:06 +1000 Subject: xfs: flush outstanding buffers on log mount failure When we fail to mount the log in xfs_mountfs(), we tear down all the infrastructure we have already allocated. However, the process of mounting the log may have progressed to the point of reading, caching and modifying buffers in memory. Hence before we can free all the infrastructure, we have to flush and remove all the buffers from memory. Problem first reported by Eric Sandeen, later a different incarnation was reported by Ben Myers. Signed-off-by: Dave Chinner Reviewed-by: Mark Tinguely Reviewed-by: Christoph Hellwig Signed-off-by: Ben Myers --- fs/xfs/xfs_mount.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'fs/xfs/xfs_mount.c') diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c index f511d22..536021f 100644 --- a/fs/xfs/xfs_mount.c +++ b/fs/xfs/xfs_mount.c @@ -1288,7 +1288,7 @@ xfs_mountfs( XFS_FSB_TO_BB(mp, sbp->sb_logblocks)); if (error) { xfs_warn(mp, "log mount failed"); - goto out_free_perag; + goto out_fail_wait; } /* @@ -1315,7 +1315,7 @@ xfs_mountfs( !mp->m_sb.sb_inprogress) { error = xfs_initialize_perag_data(mp, sbp->sb_agcount); if (error) - goto out_free_perag; + goto out_fail_wait; } /* @@ -1439,6 +1439,10 @@ xfs_mountfs( IRELE(rip); out_log_dealloc: xfs_log_unmount(mp); + out_fail_wait: + if (mp->m_logdev_targp && mp->m_logdev_targp != mp->m_ddev_targp) + xfs_wait_buftarg(mp->m_logdev_targp); + xfs_wait_buftarg(mp->m_ddev_targp); out_free_perag: xfs_free_perag(mp); out_remove_uuid: -- cgit v1.1