Responsibility for byte swapping the extents information rests with
the low-level extent code, which translates the on-disk extents
information to the abstract extent format. The on-disk format will
eventually get more complicated, in order to add support for 64-bit
block numbers, bit-compressed extents, etc. So to avoid needing to
expose all of that complexity in swapfs.c, the in-memory contents of
i_blocks will not be byte-swapped and will be identical to the on-disk
format.
Signed-off-by: "Theodore Ts'o" <tytso@xxxxxxx>
---
lib/ext2fs/swapfs.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/lib/ext2fs/swapfs.c b/lib/ext2fs/swapfs.c
index bd0844d..52ca6a0 100644
--- a/lib/ext2fs/swapfs.c
+++ b/lib/ext2fs/swapfs.c
@@ -158,7 +158,11 @@ void ext2fs_swap_inode_full(ext2_filsys fs, struct ext2_inode_large *t,
if (!hostorder)
has_data_blocks = ext2fs_inode_data_blocks(fs,
(struct ext2_inode *) t);
+ if (hostorder && (f->i_flags & EXT4_EXTENTS_FL))
+ has_data_blocks = 0;
t->i_flags = ext2fs_swab32(f->i_flags);
+ if (hostorder && (t->i_flags & EXT4_EXTENTS_FL))
+ has_data_blocks = 0;
t->i_dir_acl = ext2fs_swab32(f->i_dir_acl);
if (!islnk || has_data_blocks ) {
for (i = 0; i < EXT2_N_BLOCKS; i++)
--
1.5.3.1.19.gb5ef6
-
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