Messages in this thread | | | Date | Wed, 22 Feb 2006 16:56:57 -0500 | From | "Xin Zhao" <> | Subject | question about possibility of data loss in Ext2/3 file system |
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As far as I know, in Ext2/3 file system, data blocks to be flushed to disk are usually marked as dirty and wait for kernel thread to flush them lazily. So data blocks of a file could be flushed even after this file is closed.
Now consider this scenario: suppose data block 2,3 and 4 of file A are marked to be flushed out. At time T1, block 2 and 3 are flushed, and file A is closed. However, at time T2, system experiences power outage and failed to flushed block 4. Does that mean we will end up with getting a partially flushed file? Is there any way to provide better guarantee on file integrity? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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