tree d27bc2170fc83f70854ad4b887fb9eacfe863f26
parent 1be41b78bc688fc634bf30965d2be692c99fd11d
author Josef Bacik <jbacik@fusionio.com> 1370869144 +0000
committer Josef Bacik <jbacik@fusionio.com> 1372683148 -0400

Btrfs: free csums when we're done scrubbing an extent

A user reported scrub taking up an unreasonable amount of ram as it ran.  This
is because we lookup the csums for the extent we're scrubbing but don't free it
up until after we're done with the scrub, which means we can take up a whole lot
of ram.  This patch fixes this by dropping the csums once we're done with the
extent we've scrubbed.  The user reported this to fix their problem.  Thanks,

Reported-and-tested-by: Remco Hosman <remco@hosman.xs4all.nl>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>