Josef Bacik
2011-Oct-05 20:35 UTC
[PATCH] Btrfs: take overflow into account in reserving space
My overcommit stuff can be a little racy when we''re filling up the disk
with
fs_mark and we overcommit into things that quickly get used up for data. So use
num_bytes to see if we have enough available space so we''re less likely
to
overcommit ourselves out of the ability to make reservations. Thanks,
Signed-off-by: Josef Bacik <josef@redhat.com>
---
fs/btrfs/extent-tree.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index f9711a8..f95e550 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -3521,7 +3521,7 @@ again:
avail >>= 1;
spin_unlock(&root->fs_info->free_chunk_lock);
- if (used + orig_bytes < space_info->total_bytes + avail) {
+ if (used + num_bytes < space_info->total_bytes + avail) {
space_info->bytes_may_use += orig_bytes;
ret = 0;
}
--
1.7.5.2
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