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From: Christoph Hellwig <hch@lst.de>
To: Al Viro <viro@zeniv.linux.org.uk>
Cc: Greg KH <gregkh@linuxfoundation.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Alexey Dobriyan <adobriyan@gmail.com>,
	linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: support splice reads on seq_file based procfs files v2
Date: Wed,  4 Nov 2020 09:27:32 +0100
Message-ID: <20201104082738.1054792-1-hch@lst.de> (raw)

Hi Al,

Greg reported a problem due to the fact that Android tests use procfs
files to test splice, which stopped working with 5.10-rc1.  This series
adds read_iter support for seq_file, and uses those for various seq_files
in procfs to restore splice read support.

Chances since v1:
 - only switch a subset of proc files to use seq_read_iter

             reply index

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-04  8:27 Christoph Hellwig [this message]
2020-11-04  8:27 ` [PATCH 1/6] seq_file: add seq_read_iter Christoph Hellwig
2020-11-10 21:32   ` Al Viro
2020-11-10 21:35     ` Al Viro
2020-11-10 23:20       ` Al Viro
2020-11-11  7:55         ` Christoph Hellwig
2020-11-11 17:54         ` Linus Torvalds
2020-11-11 21:52           ` Al Viro
2020-11-11 22:21             ` Al Viro
2020-11-11 22:27               ` Linus Torvalds
2020-11-11 23:00                 ` Al Viro
2020-11-13 23:54               ` Nathan Chancellor
2020-11-14  1:17                 ` Al Viro
2020-11-14  3:01                   ` Nathan Chancellor
2020-11-14  3:54                     ` Al Viro
2020-11-14  4:14                       ` Nathan Chancellor
2020-11-14  5:50                         ` Al Viro
2020-11-14  6:19                           ` Nathan Chancellor
2020-11-14  7:00                             ` Al Viro
2020-11-14 20:50                               ` Al Viro
2020-11-15 15:53                                 ` Al Viro
2020-11-15 16:56                                   ` Linus Torvalds
2020-11-15 21:41                                   ` Nathan Chancellor
2020-11-15 23:38                                     ` Al Viro
2020-11-15 23:51                                       ` Nathan Chancellor
2020-11-16  0:25                                         ` Al Viro
2020-11-16  0:34                                           ` Nathan Chancellor
2020-11-16  3:29                                             ` Al Viro
2020-11-27 16:29                                               ` Christoph Hellwig
2020-12-08 16:35                                                 ` Christoph Hellwig
2020-12-08 18:34                                                   ` Linus Torvalds
2020-12-08 19:49                                                     ` Al Viro
2020-12-08 20:25                                                       ` Linus Torvalds
2020-12-08 20:53                                                         ` Al Viro
2020-12-08 21:01                                                           ` Linus Torvalds
2020-12-08 19:49                                                     ` Greg KH
2020-11-14 21:44                 ` Al Viro
2020-11-04  8:27 ` [PATCH 2/6] proc: wire up generic_file_splice_read for iter ops Christoph Hellwig
2020-11-04  8:27 ` [PATCH 3/6] proc/cpuinfo: switch to ->read_iter Christoph Hellwig
2020-11-04  8:27 ` [PATCH 4/6] proc/stat: " Christoph Hellwig
2020-11-04  8:27 ` [PATCH 5/6] proc "single files": " Christoph Hellwig
2020-11-04  8:27 ` [PATCH 6/6] proc "seq " Christoph Hellwig
2020-11-04 17:53 ` support splice reads on seq_file based procfs files v2 Linus Torvalds

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