Re: [PATCH 5.4 5.10 5.15 6.1 2/3] nilfs2: eliminate staggered calls to kunmap in nilfs_rename

[Sasha Levin <sashal@kernel.org>]

[ Sasha's backport helper bot ]

Hi,

Summary of potential issues:
ℹ️ This is part 2/3 of a series
ℹ️ Patch is missing in 6.13.y (ignore if backport was sent)
⚠️ Commit missing in all newer stable branches

The upstream commit SHA1 provided is correct: 8cf57c6df818f58fdad16a909506be213623a88e

Status in newer kernel trees:
6.13.y | Present (exact SHA1)
6.12.y | Present (exact SHA1)
6.6.y | Present (different SHA1: 35dcb8a3a70e)
6.1.y | Not found

Note: The patch differs from the upstream commit:
---
1:  8cf57c6df818f ! 1:  125b899dd0a8e nilfs2: eliminate staggered calls to kunmap in nilfs_rename
    @@ Metadata
      ## Commit message ##
         nilfs2: eliminate staggered calls to kunmap in nilfs_rename
     
    +    commit 8cf57c6df818f58fdad16a909506be213623a88e upstream.
    +
         In nilfs_rename(), calls to nilfs_put_page() to release pages obtained
         with nilfs_find_entry() or nilfs_dotdot() are alternated in the normal
         path.
    @@ Commit message
         Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
         Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
         Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    +    Stable-dep-of: ee70999a988b ("nilfs2: handle errors that nilfs_prepare_chunk() may return")
     
      ## fs/nilfs2/namei.c ##
    -@@ fs/nilfs2/namei.c: static int nilfs_rename(struct mnt_idmap *idmap,
    - 	inode_set_ctime_current(old_inode);
    +@@ fs/nilfs2/namei.c: static int nilfs_rename(struct inode *old_dir, struct dentry *old_dentry,
    + 	old_inode->i_ctime = current_time(old_inode);
      
      	nilfs_delete_entry(old_de, old_page);
     -	nilfs_put_page(old_page);
---

NOTE: These results are for this patch alone. Full series testing will be
performed when all parts are received.

Results of testing on various branches:

| Branch                    | Patch Apply | Build Test |
|---------------------------|-------------|------------|
| stable/linux-5.4.y        |  Success    |  Success   |
| stable/linux-5.10.y       |  Success    |  Success   |
| stable/linux-5.15.y       |  Success    |  Success   |
| stable/linux-6.1.y        |  Success    |  Success   |