[PATCH v3 07/13] vfs_btrfs: add [GET/SET]_COMPRESSION handlers

David Disseldorp ddiss at suse.de
Tue Nov 5 05:59:55 MST 2013

On Tue, 5 Nov 2013 13:40:16 +0100
Volker Lendecke <Volker.Lendecke at SerNet.DE> wrote:

> > +	ret = ioctl(fd, FS_IOC_SETFLAGS, &flags);  
> Is this call sync, i.e. does it block until that 1TB archive
> is compressed?

No, on Btrfs it flags the inode for compression of newly written data.
I.e. It's a meta-data only operation.

Cheers, David

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