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authorLinus Torvalds <torvalds@linux-foundation.org>2010-04-12 18:37:04 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-04-12 18:37:04 -0700
commitd6cf853d4d73c268fc8920ac4e812ee26a12847c (patch)
treec909145638eb5c4897ea7e424759eb9b564ebe18 /fs/btrfs/volumes.c
parent6a945f38be5f2c198853069a336c887a51d1a238 (diff)
parent9f680ce04ea19dabbbafe01b57b61930a9b70741 (diff)
downloadblackbird-op-linux-d6cf853d4d73c268fc8920ac4e812ee26a12847c.tar.gz
blackbird-op-linux-d6cf853d4d73c268fc8920ac4e812ee26a12847c.zip
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable: Btrfs: make sure the chunk allocator doesn't create zero length chunks Btrfs: fix data enospc check overflow
Diffstat (limited to 'fs/btrfs/volumes.c')
-rw-r--r--fs/btrfs/volumes.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index aa7dc36dac78..8db7b14bbae8 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -2250,6 +2250,12 @@ again:
if (!looped)
calc_size = max_t(u64, min_stripe_size, calc_size);
+ /*
+ * we're about to do_div by the stripe_len so lets make sure
+ * we end up with something bigger than a stripe
+ */
+ calc_size = max_t(u64, calc_size, stripe_len * 4);
+
do_div(calc_size, stripe_len);
calc_size *= stripe_len;
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