From: Matthew Wilcox <willy@infradead.org>
To: Eric Sandeen <sandeen@redhat.com>
Cc: fsdevel <linux-fsdevel@vger.kernel.org>, Jan Kara <jack@suse.cz>,
Josef Bacik <jbacik@fb.com>
Subject: Re: [PATCH] fs: avoid softlockups in s_inodes iterators
Date: Fri, 11 Oct 2019 11:32:53 -0700 [thread overview]
Message-ID: <20191011183253.GV32665@bombadil.infradead.org> (raw)
In-Reply-To: <841d0e0f-f04c-9611-2eea-0bcc40e5b084@redhat.com>
On Fri, Oct 11, 2019 at 11:49:38AM -0500, Eric Sandeen wrote:
> @@ -698,6 +699,13 @@ int invalidate_inodes(struct super_block *sb, bool kill_dirty)
> inode_lru_list_del(inode);
> spin_unlock(&inode->i_lock);
> list_add(&inode->i_lru, &dispose);
> +
> + if (need_resched()) {
> + spin_unlock(&sb->s_inode_list_lock);
> + cond_resched();
> + dispose_list(&dispose);
> + goto again;
> + }
> }
> spin_unlock(&sb->s_inode_list_lock);
>
Is this equivalent to:
+ cond_resched_lock(&sb->s_inode_list_lock));
or is disposing of the list a crucial part here?
next prev parent reply other threads:[~2019-10-11 18:32 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-11 16:49 [PATCH] fs: avoid softlockups in s_inodes iterators Eric Sandeen
2019-10-11 17:29 ` Josef Bacik
2019-10-11 17:34 ` Eric Sandeen
2019-10-11 17:35 ` Josef Bacik
2019-10-11 18:32 ` Matthew Wilcox [this message]
2019-10-11 18:45 ` Eric Sandeen
2019-10-11 21:14 ` Eric Sandeen
2019-10-12 4:29 ` Dave Chinner
2019-10-14 8:46 ` Jan Kara
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