Josef Bacik
2012-Jan-24 16:29 UTC
[PATCH] Btrfs: advance window_start if we''re using a bitmap
If we span a long area in a bitmap we could end up taking a lot of time
searching to the next free area if we''re searching from the original
window_start, so advance window_start in order to make sure we don''t do
any
superficial searching. Thanks,
Signed-off-by: Josef Bacik <josef@redhat.com>
---
fs/btrfs/free-space-cache.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c
index 43e75f2..c2f2059 100644
--- a/fs/btrfs/free-space-cache.c
+++ b/fs/btrfs/free-space-cache.c
@@ -2251,6 +2251,7 @@ u64 btrfs_alloc_from_cluster(struct
btrfs_block_group_cache *block_group,
offset_index);
continue;
}
+ cluster->window_start += bytes;
} else {
ret = entry->offset;
--
1.7.5.2
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