Re: [PATCH v14 0/4] ext4: deferred iput framework for EA inodes
"Theodore Ts'o" <[email protected]>
| Newsgroups | org.kernel.vger.linux-ext4,org.kernel.vger.linux-fsdevel,org.kernel.vger.linux-kernel |
|---|---|
| Message-ID | <178481171721.796182.16168303721890374305.b4-ty@b4> |
On Fri, 10 Jul 2026 11:08:47 +0800, Yun Zhou wrote:
> This series introduces a deferred-iput framework for EA inodes to
> eliminate a class of lock ordering issues in ext4 xattr code.
>
> The problem: iput() on EA inodes while holding xattr_sem or a jbd2
> handle can trigger eviction, which may acquire those same locks or
> s_writepages_rwsem, creating circular dependencies. The immediate
> deadlock (during mount-time orphan cleanup) is fixed by two separate
> patches already reviewed and posted:
>
> [...]
Applied, thanks!
[1/4] fs: add iput_if_not_last() helper
commit: 2a4c637d6fab83b689aea834d8e725189a2ef370
[2/4] ext4: introduce ext4_put_ea_inode() for safe deferred iput
commit: 4f48af3dc75545f6c874e7d195aeff009c7453ba
[3/4] ext4: convert all EA inode iput() calls to ext4_put_ea_inode()
commit: a54778243e88f2a941e145e5afa43bd1619c0a66
[4/4] ext4: remove ea_inode_array mechanism in favor of ext4_put_ea_inode()
commit: 3a00c9bc8ea5b816eac165550a4676a3bcde7f2d
Best regards,
--
Theodore Ts'o <[email protected]>