6.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Filipe Manana <fdmanana@xxxxxxxx> [ Upstream commit ae6bd7f9b46a29af52ebfac25d395757e2031d0d ] At contains_pending_extent() the value of the end offset of a chunk we found in the device's allocation state io tree is inclusive, so when we calculate the length we pass to the in_range() macro, we must sum 1 to the expression "physical_end - physical_offset". In practice the wrong calculation should be harmless as chunks sizes are never 1 byte and we should never have 1 byte ranges of unallocated space. Nevertheless fix the wrong calculation. Reported-by: Alex Lyakas <alex.lyakas@xxxxxxxxxx> Link: https://lore.kernel.org/linux-btrfs/CAOcd+r30e-f4R-5x-S7sV22RJPe7+pgwherA6xqN2_qe7o4XTg@xxxxxxxxxxxxxx/ Fixes: 1c11b63eff2a ("btrfs: replace pending/pinned chunks lists with io tree") CC: stable@xxxxxxxxxxxxxxx # 6.1+ Reviewed-by: Josef Bacik <josef@xxxxxxxxxxxxxx> Reviewed-by: Qu Wenruo <wqu@xxxxxxxx> Signed-off-by: Filipe Manana <fdmanana@xxxxxxxx> Signed-off-by: David Sterba <dsterba@xxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- fs/btrfs/volumes.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 6fc2d99270c18..03cfb425ea4ea 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -1444,7 +1444,7 @@ static bool contains_pending_extent(struct btrfs_device *device, u64 *start, if (in_range(physical_start, *start, len) || in_range(*start, physical_start, - physical_end - physical_start)) { + physical_end + 1 - physical_start)) { *start = physical_end + 1; return true; } -- 2.43.0
