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authorJosef Bacik <josef@redhat.com>2010-03-17 20:45:56 +0000
committerChris Mason <chris.mason@oracle.com>2010-03-30 21:19:09 -0400
commit0cad8a1130f77c7c445e3298c0e3593b3c0ef439 (patch)
tree1f045f7baccc9dd2c1ac805b94cdedc4bbab618f
parent287a0ab91d25ca982f895a76402e5893b47ed7a6 (diff)
Btrfs: fix chunk allocate size calculation
If the amount of free space left in a device is less than what we think should be the minimum size, just ignore the minimum size and use the amount we have. I ran into this running tests on a 600mb volume, the chunk allocator wouldn't let me allocate the last 52mb of the disk for data because we want to have at least 64mb chunks for data. This patch fixes that problem. Thanks, Signed-off-by: Josef Bacik <josef@redhat.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
-rw-r--r--fs/btrfs/volumes.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index bf3bec3e413..9bf1f581b87 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -2244,8 +2244,10 @@ again:
do_div(calc_size, stripe_len);
calc_size *= stripe_len;
}
+
/* we don't want tiny stripes */
- calc_size = max_t(u64, min_stripe_size, calc_size);
+ if (!looped)
+ calc_size = max_t(u64, min_stripe_size, calc_size);
do_div(calc_size, stripe_len);
calc_size *= stripe_len;