Commits
Chris Mason committed c9dc4c65785
Btrfs: two stage dirty block group writeout Block group cache writeout is currently waiting on the pages for each block group cache before moving on to writing the next one. This commit switches things around to send down all the caches and then wait on them in batches. The end result is much faster, since we're keeping the disk pipeline full. Signed-off-by: Chris Mason <clm@fb.com>