[ Sasha's backport helper bot ]
Hi,
Summary of potential issues: ℹ️ This is part 2/5 of a series ⚠️ Found follow-up fixes in mainline
The upstream commit SHA1 provided is correct: c7e7c04274b13f98f758fb69b03f2ab61976ea80
WARNING: Author mismatch between patch and upstream commit: Backport author: Qingfang Dengdqfext@gmail.com Commit author: Ian Kentraven@themaw.net
Status in newer kernel trees: 6.14.y | Present (exact SHA1) 6.12.y | Present (exact SHA1) 6.6.y | Present (exact SHA1) 6.1.y | Present (exact SHA1) 5.15.y | Present (exact SHA1)
Found fixes commits: 410d591a1954 kernfs: don't create a negative dentry if inactive node exists df38d852c681 kernfs: also call kernfs_set_rev() for positive dentry
Note: The patch differs from the upstream commit: --- 1: c7e7c04274b13 ! 1: 6ca146f13dc9d kernfs: use VFS negative dentry caching @@ Metadata ## Commit message ## kernfs: use VFS negative dentry caching
+ Commit c7e7c04274b13f98f758fb69b03f2ab61976ea80 upstream. + If there are many lookups for non-existent paths these negative lookups can lead to a lot of overhead during path walks.
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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-5.15.y | Success | Success |