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linux-cryptodev-2.6/fs
Chris Mason e1df36d2f1 Btrfs: don't clean old snapshots on sync(1)
Cleaning old snapshots can make sync(1) somewhat slow, and some users
and applications still use it in a global fsync kind of workload.

This patch changes btrfs not to clean old snapshots during sync, which is
safe from a FS consistency point of view.  The major downside is that it
makes it difficult to tell when old snapshots have been reaped and
the space they were using has been reclaimed.  A new ioctl will be added
for this purpose instead.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
2009-02-12 09:45:08 -05:00
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