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authorJosef Bacik <jbacik@fusionio.com>2013-06-10 12:59:04 (GMT)
committerJosef Bacik <jbacik@fusionio.com>2013-07-01 12:52:28 (GMT)
commitd88d46c6e06cb47cd3b951287ccaf414e96560d0 (patch)
treed27bc2170fc83f70854ad4b887fb9eacfe863f26 /fs/btrfs
parent1be41b78bc688fc634bf30965d2be692c99fd11d (diff)
downloadlinux-d88d46c6e06cb47cd3b951287ccaf414e96560d0.tar.xz
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>
Diffstat (limited to 'fs/btrfs')
-rw-r--r--fs/btrfs/scrub.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index 79bd479..cb308a3 100644
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -2505,6 +2505,7 @@ again:
if (ret)
goto out;
+ scrub_free_csums(sctx);
if (extent_logical + extent_len <
key.objectid + bytes) {
logical += increment;