Compressed extents set the physical length and the corresponging extent
flags.
Signed-off-by: David Sterba <dsterba@xxxxxxx>
---
fs/btrfs/extent_io.c | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index c85da2e54ce7..12771d64b74e 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -4272,6 +4272,7 @@ int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
while (!end) {
u64 offset_in_extent = 0;
+ u64 em_phys_len = 0;
/* break if the extent we found is outside the range */
if (em->start >= max || extent_map_end(em) < off)
@@ -4334,8 +4335,12 @@ int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
if (ref_cnt > 1)
flags |= FIEMAP_EXTENT_SHARED;
}
- if (test_bit(EXTENT_FLAG_COMPRESSED, &em->flags))
- flags |= FIEMAP_EXTENT_ENCODED;
+ if (test_bit(EXTENT_FLAG_COMPRESSED, &em->flags)) {
+ flags |= FIEMAP_EXTENT_ENCODED |
+ FIEMAP_EXTENT_DATA_COMPRESSED |
+ FIEMAP_EXTENT_PHYS_LENGTH;
+ em_phys_len = em->block_len;
+ }
free_extent_map(em);
em = NULL;
@@ -4357,7 +4362,7 @@ int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
end = 1;
}
ret = fiemap_fill_next_extent(fieinfo, em_start, disko,
- em_len, 0, flags);
+ em_len, em_phys_len, flags);
if (ret)
goto out_free;
}
--
1.8.4.5
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