[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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