4.14-stable review patch. If anyone has any objections, please let me know.
------------------ From: Josef Bacik <[email protected]> commit 553cceb49681d60975d00892877d4c871bf220f9 upstream. 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. CC: [email protected] # 4.4+ Reviewed-by: Liu Bo <[email protected]> Signed-off-by: Josef Bacik <[email protected]> Signed-off-by: David Sterba <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- fs/btrfs/free-space-cache.c | 2 ++ 1 file changed, 2 insertions(+) --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -1710,6 +1710,8 @@ static inline void __bitmap_clear_bits(s 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,
