> -----Original Message----- > From: linux-btrfs-ow...@vger.kernel.org [mailto:linux-btrfs- > ow...@vger.kernel.org] On Behalf Of Anand Jain > Sent: Saturday, 15 July 2017 2:53 PM > To: David Sterba <dste...@suse.com>; linux-btrfs@vger.kernel.org > Subject: Re: [PATCH] btrfs: allow defrag compress to override NOCOMPRESS > attribute > > > On 07/13/2017 09:18 PM, David Sterba wrote: > > Currently, the BTRFS_INODE_NOCOMPRESS will prevent any compression > on > > a given file, except when the mount is force-compress. As users have > > reported on IRC, this will also prevent compression when requested by > > defrag (btrfs fi defrag -c file). > > > > The nocompress flag is set automatically by filesystem when the ratios > > are bad and the user would have to manually drop the bit in order to > > make defrag -c work. This is not good from the usability perspective. > > > > This patch will raise priority for the defrag -c over nocompress, ie. > > any file with NOCOMPRESS bit set will get defragmented. The bit will > > remain untouched. > > > > Alternate option was to also drop the nocompress bit and keep the > > decision logic as is, but I think this is not the right solution. > > > Now the compression set through property will act same as '-o compress- > force'. Before this patch is was like '-o compress'. > I am ok to fix that patch with a new patch.
While we are at it, would it be possible to add an option to remove compression? Ie. btrfs fi defrag -c none file Currently this doesn't seem to exist. Thanks, Paul.
