Ext4 filesystem hits Android, no need to fear data loss (ars technica)
Posted Dec 29, 2010 2:09 UTC (Wed) by quotemstr
In reply to: Ext4 filesystem hits Android, no need to fear data loss (ars technica)
Parent article: Ext4 filesystem hits Android, no need to fear data loss (ars technica)
This observation is somewhat amusing in light of the fact that barriers in the Linux FS/Block layer were recently replaced with controlled flushing.
And the second part of that plan is to use threads and internal queues to achieve the same overall effect; that's not really an option for userspace.
As for citing Tso's: his views on the subject are widely-known; that doesn't make them correct. There is nothing wrong with an application relying on transactional rename semantics, and asking userspace to not use reasonable, convenient behavior that's worked for years is simply not a tenable position.
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