[PULL,109/111] virtiofsd/passthrough_ll: Pass errno to fuse_reply_err()
diff mbox series

Message ID 20200123115841.138849-110-dgilbert@redhat.com
State New
Headers show
Series
  • virtiofs queue
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Commit Message

Dr. David Alan Gilbert Jan. 23, 2020, 11:58 a.m. UTC
From: Xiao Yang <yangx.jy@cn.fujitsu.com>

lo_copy_file_range() passes -errno to fuse_reply_err() and then fuse_reply_err()
changes it to errno again, so that subsequent fuse_send_reply_iov_nofree() catches
the wrong errno.(i.e. reports "fuse: bad error value: ...").

Make fuse_send_reply_iov_nofree() accept the correct -errno by passing errno
directly in lo_copy_file_range().

Signed-off-by: Xiao Yang <yangx.jy@cn.fujitsu.com>
Reviewed-by: Eryu Guan <eguan@linux.alibaba.com>

dgilbert: Sent upstream and now Merged as aa1185e153f774f1df65
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
---
 tools/virtiofsd/passthrough_ll.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch
diff mbox series

diff --git a/tools/virtiofsd/passthrough_ll.c b/tools/virtiofsd/passthrough_ll.c
index fc15d61510..e6f2399efc 100644
--- a/tools/virtiofsd/passthrough_ll.c
+++ b/tools/virtiofsd/passthrough_ll.c
@@ -2441,7 +2441,7 @@  static void lo_copy_file_range(fuse_req_t req, fuse_ino_t ino_in, off_t off_in,
 
     res = copy_file_range(in_fd, &off_in, out_fd, &off_out, len, flags);
     if (res < 0) {
-        fuse_reply_err(req, -errno);
+        fuse_reply_err(req, errno);
     } else {
         fuse_reply_write(req, res);
     }