Patch "f2fs: add error prints for debugging mount failure" has been added to the 4.19-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    f2fs: add error prints for debugging mount failure

to the 4.19-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     f2fs-add-error-prints-for-debugging-mount-failure.patch
and it can be found in the queue-4.19 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 935dfcb835a013561b4715e33f10175bd2a0bda0
Author: Sahitya Tummala <quic_stummala@xxxxxxxxxxx>
Date:   Thu May 23 09:49:17 2019 +0530

    f2fs: add error prints for debugging mount failure
    
    [ Upstream commit 9227d5227b8db354d386f592f159eaa44db1c0b8 ]
    
    Add error prints to get more details on the mount failure.
    
    Signed-off-by: Sahitya Tummala <stummala@xxxxxxxxxxxxxx>
    Reviewed-by: Chao Yu <yuchao0@xxxxxxxxxx>
    Signed-off-by: Jaegeuk Kim <jaegeuk@xxxxxxxxxx>
    Stable-dep-of: 0fa4e57c1db2 ("f2fs: fix to release node block count in error path of f2fs_new_node_page()")
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 7596fce92bef1..34090edc8ce25 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -3409,8 +3409,12 @@ static int restore_curseg_summaries(struct f2fs_sb_info *sbi)
 
 	/* sanity check for summary blocks */
 	if (nats_in_cursum(nat_j) > NAT_JOURNAL_ENTRIES ||
-			sits_in_cursum(sit_j) > SIT_JOURNAL_ENTRIES)
+			sits_in_cursum(sit_j) > SIT_JOURNAL_ENTRIES) {
+		f2fs_msg(sbi->sb, KERN_ERR,
+			"invalid journal entries nats %u sits %u\n",
+			nats_in_cursum(nat_j), sits_in_cursum(sit_j));
 		return -EINVAL;
+	}
 
 	return 0;
 }
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 89fc8a4ce1497..b075ba3e62dcd 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -3016,13 +3016,13 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
 	err = f2fs_build_segment_manager(sbi);
 	if (err) {
 		f2fs_msg(sb, KERN_ERR,
-			"Failed to initialize F2FS segment manager");
+			"Failed to initialize F2FS segment manager (%d)", err);
 		goto free_sm;
 	}
 	err = f2fs_build_node_manager(sbi);
 	if (err) {
 		f2fs_msg(sb, KERN_ERR,
-			"Failed to initialize F2FS node manager");
+			"Failed to initialize F2FS node manager (%d)", err);
 		goto free_nm;
 	}