ext4: add debugging context for warning in ext4_da_update_reserve_space()

Print some additional debugging context to hopefully help to debug a
warning which is getting triggered by xfstests #74.

Also remove extraneous newlines from when printk's were converted to
ext4_warning() and ext4_msg().

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

1 files changed, 7 insertions, 5 deletions

diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index b85d5dae726b..c4e9177f60c6 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -352,10 +352,12 @@ void ext4_da_update_reserve_space(struct inode *inode,
         }
 
         if (unlikely(ei->i_allocated_meta_blocks > ei->i_reserved_meta_blocks)) {
-                ext4_warning(inode->i_sb, "%s: ino %lu, allocated %d "
-                         "with only %d reserved metadata blocks\n", __func__,
-                         inode->i_ino, ei->i_allocated_meta_blocks,
-                         ei->i_reserved_meta_blocks);
+                ext4_warning(inode->i_sb, "ino %lu, allocated %d "
+                        "with only %d reserved metadata blocks "
+                        "(releasing %d blocks with reserved %d data blocks)",
+                        inode->i_ino, ei->i_allocated_meta_blocks,
+                             ei->i_reserved_meta_blocks, used,
+                             ei->i_reserved_data_blocks);
                 WARN_ON(1);
                 ei->i_allocated_meta_blocks = ei->i_reserved_meta_blocks;
         }
@@ -1609,7 +1611,7 @@ static void mpage_da_map_and_submit(struct mpage_da_data *mpd)
                                  (unsigned long long) next,
                                  mpd->b_size >> mpd->inode->i_blkbits, err);
                         ext4_msg(sb, KERN_CRIT,
-                                "This should not happen!! Data will be lost\n");
+                                "This should not happen!! Data will be lost");
                         if (err == -ENOSPC)
                                 ext4_print_free_blocks(mpd->inode);
                 }