From: Christoph Hellwig <hch@lst.de>
To: Al Viro <viro@zeniv.linux.org.uk>,
Linus Torvalds <torvalds@linux-foundation.org>,
Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Luis Chamberlain <mcgrof@kernel.org>,
Matthew Wilcox <willy@infradead.org>,
Kees Cook <keescook@chromium.org>,
Iurii Zaikin <yzaikin@google.com>,
linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org
Subject: [PATCH 03/23] bpfilter: switch to kernel_write
Date: Tue, 7 Jul 2020 19:47:41 +0200 [thread overview]
Message-ID: <20200707174801.4162712-4-hch@lst.de> (raw)
In-Reply-To: <20200707174801.4162712-1-hch@lst.de>
While pipes don't really need sb_writers projection, __kernel_write is an
interface better kept private, and the additional rw_verify_area does not
hurt here.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
net/bpfilter/bpfilter_kern.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/bpfilter/bpfilter_kern.c b/net/bpfilter/bpfilter_kern.c
index c0f0990f30b604..1905e01c3aa9a7 100644
--- a/net/bpfilter/bpfilter_kern.c
+++ b/net/bpfilter/bpfilter_kern.c
@@ -50,7 +50,7 @@ static int __bpfilter_process_sockopt(struct sock *sk, int optname,
req.len = optlen;
if (!bpfilter_ops.info.pid)
goto out;
- n = __kernel_write(bpfilter_ops.info.pipe_to_umh, &req, sizeof(req),
+ n = kernel_write(bpfilter_ops.info.pipe_to_umh, &req, sizeof(req),
&pos);
if (n != sizeof(req)) {
pr_err("write fail %zd\n", n);
--
2.26.2
next prev parent reply other threads:[~2020-07-07 17:49 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-07 17:47 stop using ->read and ->write for kernel access v3 Christoph Hellwig
2020-07-07 17:47 ` [PATCH 01/23] cachefiles: switch to kernel_write Christoph Hellwig
2020-07-07 17:47 ` [PATCH 02/23] autofs: " Christoph Hellwig
2020-07-07 17:47 ` Christoph Hellwig [this message]
2020-07-07 17:47 ` [PATCH 04/23] fs: unexport __kernel_write Christoph Hellwig
2020-07-07 17:47 ` [PATCH 05/23] fs: check FMODE_WRITE in __kernel_write Christoph Hellwig
2020-07-07 17:47 ` [PATCH 06/23] fs: implement kernel_write using __kernel_write Christoph Hellwig
2020-07-07 17:47 ` [PATCH 07/23] fs: remove __vfs_write Christoph Hellwig
2020-07-07 17:47 ` [PATCH 08/23] fs: don't change the address limit for ->write_iter in __kernel_write Christoph Hellwig
2020-07-29 20:50 ` Al Viro
2020-07-30 7:02 ` Christoph Hellwig
2020-07-07 17:47 ` [PATCH 09/23] fs: add a __kernel_read helper Christoph Hellwig
2020-07-07 17:47 ` [PATCH 10/23] integrity/ima: switch to using __kernel_read Christoph Hellwig
2020-07-07 17:47 ` [PATCH 11/23] fs: implement kernel_read " Christoph Hellwig
2020-07-07 17:47 ` [PATCH 12/23] fs: remove __vfs_read Christoph Hellwig
2020-07-07 17:47 ` [PATCH 13/23] fs: don't change the address limit for ->read_iter in __kernel_read Christoph Hellwig
2020-07-07 17:47 ` [PATCH 14/23] seq_file: add seq_read_iter Christoph Hellwig
2020-07-07 17:47 ` [PATCH 15/23] seq_file: switch over direct seq_read method calls to seq_read_iter Christoph Hellwig
2020-07-10 12:55 ` Jon Hunter
2020-07-10 12:58 ` Christoph Hellwig
2020-07-11 6:48 ` Christoph Hellwig
2020-07-11 11:47 ` Jon Hunter
2020-07-17 21:09 ` Thomas Gleixner
2020-07-20 9:33 ` Christoph Hellwig
2020-07-29 20:59 ` Al Viro
2020-07-30 7:10 ` Thomas Gleixner
2020-07-07 17:47 ` [PATCH 16/23] proc: remove a level of indentation in proc_get_inode Christoph Hellwig
2020-07-07 17:47 ` [PATCH 17/23] proc: cleanup the compat vs no compat file ops Christoph Hellwig
2020-07-07 17:47 ` [PATCH 18/23] proc: add a read_iter method to proc proc_ops Christoph Hellwig
2020-07-07 17:47 ` [PATCH 19/23] proc: switch over direct seq_read method calls to seq_read_iter Christoph Hellwig
2020-07-07 17:47 ` [PATCH 20/23] sysctl: Convert to iter interfaces Christoph Hellwig
2020-07-07 17:47 ` [PATCH 21/23] fs: don't allow kernel reads and writes without iter ops Christoph Hellwig
2020-07-07 17:48 ` [PATCH 22/23] fs: default to generic_file_splice_read for files having ->read_iter Christoph Hellwig
2020-07-30 0:05 ` Al Viro
2020-07-30 7:03 ` Christoph Hellwig
2020-07-30 15:08 ` Al Viro
2020-07-30 15:20 ` Christoph Hellwig
2020-07-30 16:17 ` Al Viro
2020-07-30 16:22 ` Al Viro
2020-07-30 16:31 ` Christoph Hellwig
2020-07-07 17:48 ` [PATCH 23/23] fs: don't allow splice read/write without explicit ops Christoph Hellwig
2020-07-07 20:24 ` stop using ->read and ->write for kernel access v3 Linus Torvalds
2020-07-08 6:07 ` Christoph Hellwig
2020-07-07 23:03 ` Stephen Rothwell
-- strict thread matches above, loose matches on Subject: below --
2020-07-01 20:09 [RFC] " Christoph Hellwig
2020-07-01 20:09 ` [PATCH 03/23] bpfilter: switch to kernel_write Christoph Hellwig
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