On Jun 24, 2003 10:55 +0530, Satish Singhal wrote: > >See ext3_sync_super_lockfs(), ext3_unlockfs(), and the LVM VFS-locking > >patch. > >These are used to put the filesystem into a stable state for a short time > >until the snapshot is created. > > Thanks for your response. > But my problem is a bit different. > Once the snapshot is taken, how do I determine that the given snapshot image > (Ext2/Ext3 File-System) is indeed consistent. > > Is there any field in super-block or any other on-disk structure which could > tell the state of a raw File-System(Ext2/3) image. After the snapshot is taken (as above), the absence of EXT3_VALID_FS in s_mount_state, or the presence of EXT3_FEATURE_INCOMPAT_RECOVER in s_feature_incompat means that the snapshot was not valid. Cheers, Andreas -- Andreas Dilger http://sourceforge.net/projects/ext2resize/ http://www-mddsp.enel.ucalgary.ca/People/adilger/ _______________________________________________ Ext3-users@redhat.com https://www.redhat.com/mailman/listinfo/ext3-users
