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[21/22] btrfs: reset max_extent_size on clear in a bitmap

Message ID 20180719145006.17532-21-josef@toxicpanda.com (mailing list archive)
State New, archived
Headers show

Commit Message

Josef Bacik July 19, 2018, 2:50 p.m. UTC 
From: Josef Bacik <jbacik@fb.com>

We need to clear the max_extent_size when we clear bits from a bitmap
since it could have been from the range that contains the
max_extent_size.

Signed-off-by: Josef Bacik <jbacik@fb.com>
---
 fs/btrfs/free-space-cache.c | 2 ++
 1 file changed, 2 insertions(+)
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Patch

diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c
index 92e1c30356b9..0feb735a78a8 100644
--- a/fs/btrfs/free-space-cache.c
+++ b/fs/btrfs/free-space-cache.c
@@ -1691,6 +1691,8 @@  static inline void __bitmap_clear_bits(struct btrfs_free_space_ctl *ctl,
 	bitmap_clear(info->bitmap, start, count);
 
 	info->bytes -= bytes;
+	if (info->max_extent_size > ctl->unit)
+		info->max_extent_size = 0;
 }
 
 static void bitmap_clear_bits(struct btrfs_free_space_ctl *ctl,