However we ought to support this in future because xz files contain
sparseness information, so add a note.
---
filters/xz/xz.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/filters/xz/xz.c b/filters/xz/xz.c
index ec41f25..3013538 100644
--- a/filters/xz/xz.c
+++ b/filters/xz/xz.c
@@ -185,6 +185,16 @@ xz_can_write (struct nbdkit_next_ops *next_ops, void
*nxdata,
return 0;
}
+/* Similar to above. However xz files themselves do support
+ * sparseness so in future we should generate extents information. XXX
+ */
+static int
+xz_can_extents (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle)
+{
+ return 0;
+}
+
/* Read data from the file. */
static int
xz_pread (struct nbdkit_next_ops *next_ops, void *nxdata,
@@ -238,6 +248,7 @@ static struct nbdkit_filter filter = {
.prepare = xz_prepare,
.get_size = xz_get_size,
.can_write = xz_can_write,
+ .can_extents = xz_can_extents,
.pread = xz_pread,
};
--
2.20.1
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