Ext4 filesystem hits Android, no need to fear data loss (ars technica) [LWN.net]

Ext4 filesystem hits Android, no need to fear data loss (ars technica)

Posted Jan 1, 2011 19:22 UTC (Sat) by butlerm (subscriber, #13312)
In reply to: Ext4 filesystem hits Android, no need to fear data loss (ars technica) by iabervon
Parent article: Ext4 filesystem hits Android, no need to fear data loss (ars technica)

The necessary operation is to *prevent* writing the metadata until the data has been written.

That can lead to severe performance issues, unless you implement some sort of multiversion concurrency (a la BSD style "soft updates") on all your metadata. There are better ways.

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