From: Naohiro Aota naohiro.aota@wdc.com
commit 0ae79c6fe70d5c5c645733b7ed39d5e6021d8c9a upstream.
alloc_offset is offset from the start of a block group and @offset is actually an address in logical space. Thus, we need to consider block_group->start when calculating them.
Fixes: 011b41bffa3d ("btrfs: zoned: advance allocation pointer after tree log node") CC: stable@vger.kernel.org # 5.12+ Signed-off-by: Naohiro Aota naohiro.aota@wdc.com Signed-off-by: David Sterba dsterba@suse.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/btrfs/free-space-cache.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)
--- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -2652,8 +2652,11 @@ int btrfs_remove_free_space(struct btrfs * btrfs_pin_extent_for_log_replay() when replaying the log. * Advance the pointer not to overwrite the tree-log nodes. */ - if (block_group->alloc_offset < offset + bytes) - block_group->alloc_offset = offset + bytes; + if (block_group->start + block_group->alloc_offset < + offset + bytes) { + block_group->alloc_offset = + offset + bytes - block_group->start; + } return 0; }