• David Sterba's avatar
    btrfs: allow to set compression level for zlib · f51d2b59
    David Sterba authored
    Preliminary support for setting compression level for zlib, the
    following works:
    
    $ mount -o compess=zlib                 # default
    $ mount -o compess=zlib0                # same
    $ mount -o compess=zlib9                # level 9, slower sync, less data
    $ mount -o compess=zlib1                # level 1, faster sync, more data
    $ mount -o remount,compress=zlib3	# level set by remount
    
    The compress-force works the same as compress'.  The level is visible in
    the same format in /proc/mounts. Level set via file property does not
    work yet.
    
    Required patch: "btrfs: prepare for extensions in compression options"
    Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
    f51d2b59
zlib.c 10.7 KB