ceph: include snapc in debug message of write

Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>

2 files changed, 8 insertions, 7 deletions

diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index 825931516623..0b073b6a2616 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -569,8 +569,8 @@ static int writepage_nounlock(struct page *page, struct writeback_control *wbc)
         if (snap_size < page_off + len)
                 len = snap_size - page_off;
 
-        dout("writepage %p page %p index %lu on %llu~%u snapc %p\n",
-             inode, page, page->index, page_off, len, snapc);
+        dout("writepage %p page %p index %lu on %llu~%u snapc %p seq %lld\n",
+             inode, page, page->index, page_off, len, snapc, snapc->seq);
 
         writeback_stat = atomic_long_inc_return(&fsc->writeback_count);
         if (writeback_stat >
diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index 1ce80f66e9e5..f602b3ee6c59 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -562,8 +562,7 @@ static ssize_t ceph_sync_read(struct kiocb *iocb, struct iov_iter *to,
         ssize_t ret;
         size_t len = iov_iter_count(to);
 
-        dout("sync_read on file %p %llu~%u %s\n", file, off,
-             (unsigned)len,
+        dout("sync_read on file %p %llu~%u %s\n", file, off, (unsigned)len,
              (file->f_flags & O_DIRECT) ? "O_DIRECT" : "");
 
         if (!len)
@@ -846,8 +845,9 @@ ceph_direct_read_write(struct kiocb *iocb, struct iov_iter *iter,
         if (write && ceph_snap(file_inode(file)) != CEPH_NOSNAP)
                 return -EROFS;
 
-        dout("sync_direct_read_write (%s) on file %p %lld~%u\n",
-             (write ? "write" : "read"), file, pos, (unsigned)count);
+        dout("sync_direct_%s on file %p %lld~%u snapc %p seq %lld\n",
+             (write ? "write" : "read"), file, pos, (unsigned)count,
+             snapc, snapc->seq);
 
         ret = filemap_write_and_wait_range(inode->i_mapping, pos, pos + count);
         if (ret < 0)
@@ -1050,7 +1050,8 @@ ceph_sync_write(struct kiocb *iocb, struct iov_iter *from, loff_t pos,
         if (ceph_snap(file_inode(file)) != CEPH_NOSNAP)
                 return -EROFS;
 
-        dout("sync_write on file %p %lld~%u\n", file, pos, (unsigned)count);
+        dout("sync_write on file %p %lld~%u snapc %p seq %lld\n",
+             file, pos, (unsigned)count, snapc, snapc->seq);
 
         ret = filemap_write_and_wait_range(inode->i_mapping, pos, pos + count);
         if (ret < 0)