From: "Theodore Ts'o" <tytso@mit.edu>
To: linux-ext4@vger.kernel.org,
Matthias Goergens <matthias.goergens@gmail.com>
Cc: "Theodore Ts'o" <tytso@mit.edu>,
jack@suse.cz, adilger.kernel@dilger.ca,
libaokun@linux.alibaba.com, ritesh.list@gmail.com,
yi.zhang@huawei.com, ojaswin@linux.ibm.com,
syzbot+e68dbebd9617a9250e8d@syzkaller.appspotmail.com,
stable@vger.kernel.org
Subject: Re: [PATCH] ext4: stop retrying saturated xattr cache entries
Date: Thu, 6 Aug 2026 11:01:00 -0400 [thread overview]
Message-ID: <178602814513.965683.133971697206051481.b4-ty@b4> (raw)
In-Reply-To: <20260802065941.1726052-1-matthias.goergens@gmail.com>
On Sun, 02 Aug 2026 14:59:41 +0800, Matthias Goergens wrote:
> ext4_xattr_block_set() retries when a cache entry selected for reuse
> has a saturated reference count after taking the buffer lock. The retry
> returns to the mbcache lookup without making that entry ineligible, so
> it can select the same unusable entry indefinitely. A task spinning
> there can hold the parent directory's i_rwsem and leave concurrent
> rmdir callers blocked.
>
> [...]
Applied, thanks!
[1/1] ext4: stop retrying saturated xattr cache entries
commit: 54b6bd40898de7906acb2bccc9a96d1b8e6b4323
Best regards,
--
Theodore Ts'o <tytso@mit.edu>
prev parent reply other threads:[~2026-08-06 15:01 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-02 6:59 [PATCH] ext4: stop retrying saturated xattr cache entries Matthias Goergens
2026-08-03 9:08 ` Jan Kara
2026-08-06 15:01 ` Theodore Ts'o [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=178602814513.965683.133971697206051481.b4-ty@b4 \
--to=tytso@mit.edu \
--cc=adilger.kernel@dilger.ca \
--cc=jack@suse.cz \
--cc=libaokun@linux.alibaba.com \
--cc=linux-ext4@vger.kernel.org \
--cc=matthias.goergens@gmail.com \
--cc=ojaswin@linux.ibm.com \
--cc=ritesh.list@gmail.com \
--cc=stable@vger.kernel.org \
--cc=syzbot+e68dbebd9617a9250e8d@syzkaller.appspotmail.com \
--cc=yi.zhang@huawei.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox