fs: btrfs: Fix not all CHUNK_ITEMs being read from CHUNK_TREE
authorYevgeny Popovych <yevgenyp@pointgrab.com>
Tue, 5 Jun 2018 10:11:01 +0000 (13:11 +0300)
committerTom Rini <trini@konsulko.com>
Wed, 13 Jun 2018 11:49:12 +0000 (07:49 -0400)
commitf559180176a8650a78edb5be73935f51cd6a0064
treecde02d36f03e79eae1cab96f60c7658515726775
parent5b3da7fa12f3720c4e4051af21261765bf9c44e6
fs: btrfs: Fix not all CHUNK_ITEMs being read from CHUNK_TREE

This causes errors when translating logical addresses to physical:
  btrfs_map_logical_to_physical: Cannot map logical address <addr> to physical
  btrfs_file_read: Error reading extent

The behavior of btrfs_map_logical_to_physical() is to stop traversing
CHUNK_TREE when it encounters first non-CHUNK_ITEM, which makes
only some portion of CHUNK_ITEMs being read.
Change it to skip over non-chunk items.

Signed-off-by: Yevgeny Popovych <yevgenyp@pointgrab.com>
Cc: Marek Behun <marek.behun@nic.cz>
Cc: Sergey Struzh <sergeys@pointgrab.com>
Reviewed-by: Marek Behun <marek.behun@nic.cz>
fs/btrfs/chunk-map.c