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.
Sir,
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.
Regards, Satish Singhal
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