Am 20.02.2013, 02:14 Uhr, schrieb Liu Bo <bo.li.liu@xxxxxxxxxx>:
I think I know why inode_cache keeps us from freeing space, inode_cache
adds
a cache_inode in each btrfs root, and this cache_inode will be iput at
the very
last of stage during umount, ie. after we do cleanup work on old
snapshot/subvols, where we free the space.
A remount will force btrfs to do cleanup work on old snapshots during
mount.
This may explain the situation.
thanks,
liubo
I don't know how long the code behaves that way, but this is
exactly what I see here on debian kernel 3.2.35.
Norbert
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