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From: Al Viro <viro@zeniv.linux.org.uk>
To: Matthew Wilcox <willy@infradead.org>
Cc: David Laight <David.Laight@aculab.com>,
	'Christoph Hellwig' <hch@lst.de>,
	David Hildenbrand <david@redhat.com>,
	Greg KH <gregkh@linuxfoundation.org>,
	Nick Desaulniers <ndesaulniers@google.com>,
	"kernel-team@android.com" <kernel-team@android.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Jens Axboe <axboe@kernel.dk>, Arnd Bergmann <arnd@arndb.de>,
	David Howells <dhowells@redhat.com>,
	"linux-arm-kernel@lists.infradead.org" 
	<linux-arm-kernel@lists.infradead.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"linux-mips@vger.kernel.org" <linux-mips@vger.kernel.org>,
	"linux-parisc@vger.kernel.org" <linux-parisc@vger.kernel.org>,
	"linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org>,
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	<linux-security-module@vger.kernel.org>
Subject: Re: Buggy commit tracked to: "Re: [PATCH 2/9] iov_iter: move rw_copy_check_uvector() into lib/iov_iter.c"
Date: Thu, 22 Oct 2020 19:19:44 +0100	[thread overview]
Message-ID: <20201022181944.GU3576660@ZenIV.linux.org.uk> (raw)
In-Reply-To: <20201022164040.GV20115@casper.infradead.org>

On Thu, Oct 22, 2020 at 05:40:40PM +0100, Matthew Wilcox wrote:
> On Thu, Oct 22, 2020 at 04:35:17PM +0000, David Laight wrote:
> > Wait...
> > readv(2) defines:
> > 	ssize_t readv(int fd, const struct iovec *iov, int iovcnt);
> 
> It doesn't really matter what the manpage says.  What does the AOSP
> libc header say?

FWIW, see https://www.spinics.net/lists/linux-scsi/msg147836.html and
subthread from there on...

  parent reply	other threads:[~2020-10-22 18:20 UTC|newest]

Thread overview: 184+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-18 12:45 let import_iovec deal with compat_iovecs as well Christoph Hellwig
2020-09-18 12:45 ` [PATCH 1/9] kernel: add a PF_FORCE_COMPAT flag Christoph Hellwig
2020-09-18 13:40   ` Al Viro
2020-09-18 13:44     ` Christoph Hellwig
2020-09-18 13:58       ` Al Viro
2020-09-18 15:16         ` Christoph Hellwig
2020-09-19 16:21           ` Andy Lutomirski
2020-09-19 21:16             ` Arnd Bergmann
2020-09-19 21:52               ` Finn Thain
2020-09-19 22:22               ` Andy Lutomirski
2020-09-21 16:10                 ` Pavel Begunkov
2020-09-21 16:13                   ` Pavel Begunkov
2020-09-21 23:51                     ` Andy Lutomirski
2020-09-22  0:22                       ` Pavel Begunkov
2020-09-22  0:58                         ` Andy Lutomirski
2020-09-22  6:30                           ` Pavel Begunkov
2020-09-22  7:23                             ` Arnd Bergmann
2020-09-22  7:57                               ` Pavel Begunkov
2020-09-22  9:01                                 ` Arnd Bergmann
2020-09-22 16:20                                   ` Andy Lutomirski
2020-09-23  8:01                                   ` Pavel Begunkov
2020-09-23 13:22                                     ` Al Viro
2020-09-19 22:09           ` Al Viro
2020-09-19 22:23             ` Andy Lutomirski
2020-09-19 22:41               ` Al Viro
2020-09-19 22:53                 ` Andy Lutomirski
2020-09-19 23:24                   ` Al Viro
2020-09-20  0:14                     ` Andy Lutomirski
2020-09-20  2:57                       ` Al Viro
2020-09-20 16:59                         ` Andy Lutomirski
2020-09-20 18:12                           ` Al Viro
2020-09-20 13:55             ` Arnd Bergmann
2020-09-20 15:02               ` Al Viro
2020-09-19 14:53         ` David Laight
2020-09-18 13:59       ` Arnd Bergmann
2020-09-20 15:15   ` Matthew Wilcox
2020-09-20 15:55     ` William Kucharski
2020-09-21 16:20       ` Pavel Begunkov
2020-09-20 16:00     ` Arnd Bergmann
2020-09-20 18:07     ` Al Viro
2020-09-20 18:41       ` Al Viro
2020-09-20 19:01       ` Matthew Wilcox
2020-09-20 19:10         ` Al Viro
2020-09-20 19:22           ` Matthew Wilcox
2020-09-20 19:28             ` Andy Lutomirski
2020-09-20 20:49               ` Arnd Bergmann
2020-09-20 21:13                 ` David Laight
2020-09-21 16:31                   ` Pavel Begunkov
2020-09-20 21:42             ` Al Viro
2020-09-21 16:26             ` Pavel Begunkov
2020-09-20 19:14       ` Andy Lutomirski
2020-09-21  4:28         ` Christoph Hellwig
2020-09-18 12:45 ` [PATCH 2/9] compat.h: fix a spelling error in <linux/compat.h> Christoph Hellwig
2020-09-18 13:37   ` Johannes Thumshirn
2020-09-18 12:45 ` [PATCH 3/9] fs: explicitly check for CHECK_IOVEC_ONLY in rw_copy_check_uvector Christoph Hellwig
2020-09-18 12:56   ` Matthew Wilcox
2020-09-18 13:39   ` Johannes Thumshirn
2020-09-18 12:45 ` [PATCH 4/9] fs: handle the compat case in import_iovec Christoph Hellwig
2020-09-18 12:45 ` [PATCH 5/9] fs: remove various compat readv/writev helpers Christoph Hellwig
2020-09-18 12:45 ` [PATCH 6/9] fs: remove the compat readv/writev syscalls Christoph Hellwig
2020-09-18 12:45 ` [PATCH 7/9] fs: remove compat_sys_vmsplice Christoph Hellwig
2020-09-18 12:45 ` [PATCH 8/9] mm: remove compat_process_vm_{readv,writev} Christoph Hellwig
2020-09-18 13:48   ` Arnd Bergmann
2020-09-18 12:45 ` [PATCH 9/9] security/keys: remove compat_keyctl_instantiate_key_iov Christoph Hellwig
2020-09-19 14:24 ` let import_iovec deal with compat_iovecs as well David Laight
2020-09-21  4:41   ` 'Christoph Hellwig'
2020-09-21 11:11     ` David Laight
2020-09-21 14:34 ` let import_iovec deal with compat_iovecs as well v2 Christoph Hellwig
2020-09-21 14:34   ` [PATCH 01/11] compat.h: fix a spelling error in <linux/compat.h> Christoph Hellwig
2020-09-21 14:34   ` [PATCH 02/11] mm: call import_iovec() instead of rw_copy_check_uvector() in process_vm_rw() Christoph Hellwig
2020-09-21 14:48     ` Matthew Wilcox
2020-09-21 15:02     ` Al Viro
2020-09-21 15:21       ` David Laight
2020-09-21 15:29         ` Al Viro
2020-09-21 15:44           ` David Laight
2020-09-21 16:27             ` Al Viro
2020-09-21 16:12           ` Christoph Hellwig
2020-09-21 14:34   ` [PATCH 03/11] iov_iter: move rw_copy_check_uvector() into lib/iov_iter.c and mark it static Christoph Hellwig
2020-09-21 14:34   ` [PATCH 04/11] iov_iter: explicitly check for CHECK_IOVEC_ONLY in rw_copy_check_uvector Christoph Hellwig
2020-09-21 15:05     ` David Laight
2020-09-21 15:11       ` Al Viro
2020-09-21 15:26         ` David Laight
2020-09-21 15:07     ` Al Viro
2020-09-21 14:34   ` [PATCH 05/11] iov_iter: merge the compat case into rw_copy_check_uvector Christoph Hellwig
2020-09-21 15:14     ` Al Viro
2021-01-08 11:49     ` David Laight
2020-09-21 14:34   ` [PATCH 06/11] iov_iter: handle the compat case in import_iovec Christoph Hellwig
2020-09-21 15:20     ` Al Viro
2020-09-21 14:34   ` [PATCH 07/11] fs: remove various compat readv/writev helpers Christoph Hellwig
2020-09-21 14:34   ` [PATCH 08/11] fs: remove the compat readv/writev syscalls Christoph Hellwig
2020-09-21 14:34   ` [PATCH 09/11] fs: remove compat_sys_vmsplice Christoph Hellwig
2020-09-21 14:34   ` [PATCH 10/11] mm: remove compat_process_vm_{readv,writev} Christoph Hellwig
2020-09-21 14:34   ` [PATCH 11/11] security/keys: remove compat_keyctl_instantiate_key_iov Christoph Hellwig
2020-09-23  6:05 ` let import_iovec deal with compat_iovecs as well v3 Christoph Hellwig
2020-09-23  6:05   ` [PATCH 1/9] compat.h: fix a spelling error in <linux/compat.h> Christoph Hellwig
2020-09-23  6:05   ` [PATCH 2/9] iov_iter: move rw_copy_check_uvector() into lib/iov_iter.c Christoph Hellwig
2020-09-23  6:05   ` [PATCH 3/9] iov_iter: refactor rw_copy_check_uvector and import_iovec Christoph Hellwig
2020-09-23 14:16     ` Al Viro
2020-09-23 14:38       ` David Laight
2020-09-23 14:49         ` Al Viro
2020-09-23 14:40       ` Al Viro
2020-09-23  6:05   ` [PATCH 4/9] iov_iter: transparently handle compat iovecs in import_iovec Christoph Hellwig
2020-09-23  6:05   ` [PATCH 5/9] fs: remove various compat readv/writev helpers Christoph Hellwig
2020-09-23 14:25     ` Al Viro
2020-09-23 14:32       ` Christoph Hellwig
2020-09-23 14:59         ` Al Viro
2020-09-23 16:38           ` Al Viro
2020-09-23 17:05             ` Al Viro
2020-09-23 17:46               ` Christoph Hellwig
2020-09-23 17:08             ` Brian Gerst
2020-09-23 18:45             ` Arnd Bergmann
2020-09-23 19:47               ` Al Viro
2020-09-23 19:52                 ` Arnd Bergmann
2020-09-23 21:30               ` David Laight
2020-09-23  6:05   ` [PATCH 6/9] fs: remove the compat readv/writev syscalls Christoph Hellwig
2020-09-23  6:05   ` [PATCH 7/9] fs: remove compat_sys_vmsplice Christoph Hellwig
2020-09-23  6:05   ` [PATCH 8/9] mm: remove compat_process_vm_{readv,writev} Christoph Hellwig
2020-09-23  6:05   ` [PATCH 9/9] security/keys: remove compat_keyctl_instantiate_key_iov Christoph Hellwig
2020-09-25  4:51 ` let import_iovec deal with compat_iovecs as well v4 Christoph Hellwig
2020-09-25  4:51   ` [PATCH 1/9] compat.h: fix a spelling error in <linux/compat.h> Christoph Hellwig
2020-09-25  4:51   ` [PATCH 2/9] iov_iter: move rw_copy_check_uvector() into lib/iov_iter.c Christoph Hellwig
2020-10-21 16:13     ` Buggy commit tracked to: "Re: [PATCH 2/9] iov_iter: move rw_copy_check_uvector() into lib/iov_iter.c" Greg KH
2020-10-21 20:59       ` David Laight
2020-10-21 23:39       ` Al Viro
2020-10-22  8:26         ` Greg KH
2020-10-22  8:35           ` David Hildenbrand
2020-10-22  8:40             ` David Laight
2020-10-22  8:48               ` David Hildenbrand
2020-10-22  9:01                 ` Greg KH
2020-10-22  9:06                   ` David Laight
2020-10-22  9:19                   ` David Hildenbrand
2020-10-22  9:25                     ` David Hildenbrand
2020-10-22  9:32                       ` David Laight
2020-10-22  9:36                         ` David Hildenbrand
2020-10-22 10:48                           ` Greg KH
2020-10-22 12:18                             ` Greg KH
2020-10-22 12:42                               ` David Hildenbrand
2020-10-22 12:57                                 ` Greg KH
2020-10-22 13:50                                   ` Greg KH
     [not found]                                     ` <CAK8P3a1B7OVdyzW0-97JwzZiwp0D0fnSfyete16QTvPp_1m07A@mail.gmail.com>
2020-10-22 14:40                                       ` Greg KH
2020-10-22 16:15                                         ` David Laight
2020-10-23 12:46                                     ` David Laight
2020-10-23 13:09                                       ` David Hildenbrand
2020-10-23 14:33                                         ` David Hildenbrand
2020-10-23 14:39                                           ` David Laight
2020-10-23 14:47                                             ` 'Greg KH'
2020-10-23 16:33                                               ` David Hildenbrand
2020-11-02  9:06                                               ` David Laight
2020-11-02 13:52                                                 ` 'Greg KH'
2020-11-02 18:23                                                   ` David Laight
2020-10-23 17:58                                         ` Al Viro
2020-10-23 18:27                                           ` Segher Boessenkool
2020-10-23 21:28                                             ` David Laight
2020-10-24 17:29                                               ` Segher Boessenkool
2020-10-24 21:12                                                 ` David Laight
     [not found]                                       ` <CAK8P3a1n+b8hOMhNQSDzgic03dyXbmpccfTJ3C1bGKvzsgMXbg@mail.gmail.com>
2020-10-23 13:28                                         ` David Laight
2020-10-22 13:23                           ` Christoph Hellwig
2020-10-22 16:35                             ` David Laight
2020-10-22 16:40                               ` Matthew Wilcox
2020-10-22 16:50                                 ` David Laight
2020-10-22 17:00                                 ` Nick Desaulniers
2020-10-22 20:59                                   ` Eric Biggers
2020-10-22 21:28                                     ` Al Viro
2020-10-22 18:19                                 ` Al Viro [this message]
2020-10-22 17:54                               ` Nick Desaulniers
     [not found]                                 ` <CAK8P3a3LjG+ZvmQrkb9zpgov8xBkQQWrkHBPgjfYSqBKGrwT4w@mail.gmail.com>
2020-10-22 19:04                                   ` Nick Desaulniers
2020-10-22 19:24                                     ` Al Viro
2020-10-22 19:27                                       ` Al Viro
2020-10-22 20:06                                       ` Al Viro
2020-10-22 20:09                                         ` Al Viro
2020-10-22 20:11                                       ` Nick Desaulniers
2020-10-22 22:07                                       ` David Laight
2020-10-23 13:12                                       ` David Hildenbrand
2020-10-22 22:04                                     ` David Laight
2020-10-22  9:28                     ` David Laight
2020-10-22  9:02                 ` David Laight
2020-09-25  4:51   ` [PATCH 3/9] iov_iter: refactor rw_copy_check_uvector and import_iovec Christoph Hellwig
2020-09-25  4:51   ` [PATCH 4/9] iov_iter: transparently handle compat iovecs in import_iovec Christoph Hellwig
2020-09-25  4:51   ` [PATCH 5/9] fs: remove various compat readv/writev helpers Christoph Hellwig
2020-09-25  4:51   ` [PATCH 6/9] fs: remove the compat readv/writev syscalls Christoph Hellwig
2020-09-25  4:51   ` [PATCH 7/9] fs: remove compat_sys_vmsplice Christoph Hellwig
2020-09-25  4:51   ` [PATCH 8/9] mm: remove compat_process_vm_{readv,writev} Christoph Hellwig
2020-09-25  4:51   ` [PATCH 9/9] security/keys: remove compat_keyctl_instantiate_key_iov Christoph Hellwig
2020-09-25 15:23   ` let import_iovec deal with compat_iovecs as well v4 Al Viro

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