[PATCH v1 hot_track 15/18] btrfs: add hot tracking support

From: Zhi Yong Wu Introduce one new mount option '-o hot_track', and add its parsing support. Its usage looks like: mount -o hot_track mount -o nouser,hot_track mount -o nouser,hot_track,loop mount -o hot_track,nouser Reviewed-by: David Sterba Signed-off-by: Zhi Yong Wu ---

[PATCH v1 hot_track 15/18] btrfs: add hot tracking support

From: Zhi Yong Wu wu...@linux.vnet.ibm.com Introduce one new mount option '-o hot_track', and add its parsing support. Its usage looks like: mount -o hot_track mount -o nouser,hot_track mount -o nouser,hot_track,loop mount -o hot_track,nouser Reviewed-by: David Sterba