Commit 9f680ce0 authored by Chris Mason's avatar Chris Mason
Browse files

Btrfs: make sure the chunk allocator doesn't create zero length chunks



A recent commit allowed for smaller chunks to be created, but didn't
make sure they were always bigger than a stripe.  After some divides,
this led to zero length stripes.
Signed-off-by: default avatarChris Mason <chris.mason@oracle.com>
parent ab6e2410
......@@ -2249,6 +2249,12 @@ 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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