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-rw-r--r--block/export/fuse.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/block/export/fuse.c b/block/export/fuse.c
index ada9e26..fc7b07d 100644
--- a/block/export/fuse.c
+++ b/block/export/fuse.c
@@ -635,7 +635,9 @@ static void fuse_fallocate(fuse_req_t req, fuse_ino_t inode, int mode,
offset += size;
length -= size;
} while (ret == 0 && length > 0);
- } else if (mode & FALLOC_FL_ZERO_RANGE) {
+ }
+#ifdef CONFIG_FALLOCATE_ZERO_RANGE
+ else if (mode & FALLOC_FL_ZERO_RANGE) {
if (!(mode & FALLOC_FL_KEEP_SIZE) && offset + length > blk_len) {
/* No need for zeroes, we are going to write them ourselves */
ret = fuse_do_truncate(exp, offset + length, false,
@@ -654,7 +656,9 @@ static void fuse_fallocate(fuse_req_t req, fuse_ino_t inode, int mode,
offset += size;
length -= size;
} while (ret == 0 && length > 0);
- } else if (!mode) {
+ }
+#endif /* CONFIG_FALLOCATE_ZERO_RANGE */
+ else if (!mode) {
/* We can only fallocate at the EOF with a truncate */
if (offset < blk_len) {
fuse_reply_err(req, EOPNOTSUPP);