On Thu, Jan 12, 2017 at 02:44:06PM -0800, Jaegeuk Kim wrote: > This patch adds a kernel thread to issue discard commands. > It proposes three states, D_PREP, D_SUBMIT, and D_DONE to identify current > bio status.
Why? Instead of creating the complexity of a thread you should look into issuing the discard bios asynchronously, which should help to simplify a lot of the discard logic in f2fs.

