From: hch@infradead.org (Christoph Hellwig)
To: linux-security-module@vger.kernel.org
Subject: [PATCH 3/3] ima: use fs method to read integrity data
Date: Fri, 15 Sep 2017 07:49:03 -0700 [thread overview]
Message-ID: <20170915144903.GA3854@infradead.org> (raw)
In-Reply-To: <CA+55aFwVujvsdaq09O216u-uBbBbo5i_1d6aw3ksottR_uiJ6w@mail.gmail.com>
On Thu, Sep 14, 2017 at 10:50:27PM -0700, Linus Torvalds wrote:
> This is still wrong.
>
> (a) there is no explanation for why we need that exclusive lock in the
> first place
>
> Why should a read need exclusive access? You'd think shared is sufficient.
> But regardless, it needs *explanation*.
Shared is sufficient, and nothing in the patch (except for the
description) actually requires an exclusive lock. It just happens that
ima holds it exclusive for other internal reasons.
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next prev parent reply other threads:[~2017-09-15 14:49 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-15 4:58 [PATCH 0/3] ima: only call integrity_kernel_read to calc file hash Mimi Zohar
2017-09-15 4:58 ` [PATCH 1/3] vfs: constify path argument to kernel_read_file_from_path Mimi Zohar
2017-09-15 18:37 ` Linus Torvalds
2017-09-15 4:58 ` [PATCH 2/3] integrity: replace call to integrity_read_file with kernel version Mimi Zohar
2017-09-15 4:58 ` [PATCH 3/3] ima: use fs method to read integrity data Mimi Zohar
[not found] ` <CA+55aFwVujvsdaq09O216u-uBbBbo5i_1d6aw3ksottR_uiJ6w@mail.gmail.com>
2017-09-15 9:04 ` Mimi Zohar
2017-09-15 9:09 ` Mimi Zohar
2017-09-15 18:05 ` Linus Torvalds
2017-09-15 14:49 ` Christoph Hellwig [this message]
2017-09-15 15:21 ` Mimi Zohar
2017-09-15 20:25 ` [PATCH 3/3] ima: use fs method to read integrity data (updated patch description) Mimi Zohar
2017-09-16 18:20 ` Linus Torvalds
2017-09-17 5:47 ` Mimi Zohar
2017-09-17 15:17 ` Christoph Hellwig
2017-09-17 15:28 ` Linus Torvalds
2017-09-17 15:37 ` Christoph Hellwig
2017-09-17 16:15 ` Mimi Zohar
2017-09-17 16:34 ` Linus Torvalds
2017-09-17 16:38 ` Al Viro
2017-09-18 9:19 ` Steven Whitehouse
2017-09-18 10:13 ` Jan Kara
2017-09-18 14:55 ` Mimi Zohar
2017-09-24 22:55 ` Mimi Zohar
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