ceph: Move the place for EOLDSNAPC handle in ceph_aio_write to easily understand

Only for ceph_sync_write, the osd can return EOLDSNAPC.so move the
related codes after the call ceph_sync_write.

Signed-off-by: Jianpeng Ma <majianpeng@gmail.com>
Reviewed-by: Sage Weil <sage@inktank.com>

1 files changed, 9 insertions, 7 deletions

diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index 63ec830b9306..7478d5dbd1aa 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -766,6 +766,15 @@ retry_snap:
                 mutex_unlock(&inode->i_mutex);
                 written = ceph_sync_write(file, iov->iov_base, count,
                                           pos, &iocb->ki_pos);
+                if (written == -EOLDSNAPC) {
+                        dout("aio_write %p %llx.%llx %llu~%u"
+                                "got EOLDSNAPC, retrying\n",
+                                inode, ceph_vinop(inode),
+                                pos, (unsigned)iov->iov_len);
+                        mutex_lock(&inode->i_mutex);
+                        hold_mutex = true;
+                        goto retry_snap;
+                }
         } else {
                 written = generic_file_buffered_write(iocb, iov, nr_segs,
                                                       pos, &iocb->ki_pos,
@@ -796,13 +805,6 @@ retry_snap:
                         written = err;
         }
 
-        if (written == -EOLDSNAPC) {
-                dout("aio_write %p %llx.%llx %llu~%u got EOLDSNAPC, retrying\n",
-                     inode, ceph_vinop(inode), pos, (unsigned)iov->iov_len);
-                mutex_lock(&inode->i_mutex);
-                hold_mutex = true;
-                goto retry_snap;
-        }
 out:
         if (hold_mutex)
                 mutex_unlock(&inode->i_mutex);