On 01/10/2012 10:34 AM, Rob Latham wrote:
On Mon, Jan 09, 2012 at 10:02:48PM -0600, Phil Carns wrote:
Hi Vish,
The data is likely to still be in cache (in addition to on disk)
following an fsync, if that is what you mean. The fsync just makes
sure that any data that was cached is also durable on disk; it
doesn't remove it from the cache.
Does ext4 still flush the entire file system when doing a sync on a
specific file? Was it XFS that would treat "flush this file" as
"flush just this file" ?
==rob
Fortunately that is not the case in ext4 :) Ext3 is the one that that
was bad about that. XFS and ext4 should both be Ok on that front.
-Phil
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