Linux-BTRFS Archive on lore.kernel.org
 help / color / Atom feed
From: Goldwyn Rodrigues <rgoldwyn@suse.de>
To: linux-fsdevel@vger.kernel.org
Cc: linux-ext4@vger.kernel.org, linux-btrfs@vger.kernel.org,
	hch@infradead.org, andres@anarazel.de, david@fromorbit.com,
	riteshh@linux.ibm.com, linux-f2fs-devel@lists.sourceforge.net
Subject: Fix inode sem regression for nowait
Date: Wed, 11 Sep 2019 11:45:14 -0500
Message-ID: <20190911164517.16130-1-rgoldwyn@suse.de> (raw)
In-Reply-To: <20190911093926.pfkkx25mffzeuo32@alap3.anarazel.de>

This changes the way we acquire the inode semaphore when
the I/O is marked with IOCB_NOWAIT. The regression was discovered
in AIM7 and later by Andres in ext4. This has been fixed in
XFS by 942491c9e6d6 ("xfs: fix AIM7 regression")

I realized f2fs and btrfs also have the same code and need to
be updated.

Regards,

-- 
Goldwyn


  parent reply index

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20190910223327.mnegfoggopwqqy33@alap3.anarazel.de>
     [not found] ` <20190911040420.GB27547@dread.disaster.area>
2019-09-11  9:39   ` Odd locking pattern introduced as part of "nowait aio support" Andres Freund
2019-09-11 10:19     ` Christoph Hellwig
2019-09-11 10:31     ` Ritesh Harjani
2019-09-11 10:55     ` Goldwyn Rodrigues
2019-09-11 16:45     ` Goldwyn Rodrigues [this message]
2019-09-11 16:45       ` [PATCH 1/3] btrfs: fix inode rwsem regression Goldwyn Rodrigues
2019-09-11 17:21         ` David Sterba
2019-09-11 16:45       ` [PATCH 2/3] ext4: " Goldwyn Rodrigues
2019-09-12  8:52         ` Ritesh Harjani
2019-09-12  9:26           ` Matthew Bobrowski
2019-09-23 10:10         ` Jan Kara
2019-09-23 13:18           ` Theodore Y. Ts'o
2019-09-11 16:45       ` [PATCH 3/3] f2fs: " Goldwyn Rodrigues
2019-09-12  6:17         ` Chao Yu
2019-09-13 19:46         ` Jaegeuk Kim
2019-09-16  1:16           ` Chao Yu

Reply instructions:

You may reply publically to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20190911164517.16130-1-rgoldwyn@suse.de \
    --to=rgoldwyn@suse.de \
    --cc=andres@anarazel.de \
    --cc=david@fromorbit.com \
    --cc=hch@infradead.org \
    --cc=linux-btrfs@vger.kernel.org \
    --cc=linux-ext4@vger.kernel.org \
    --cc=linux-f2fs-devel@lists.sourceforge.net \
    --cc=linux-fsdevel@vger.kernel.org \
    --cc=riteshh@linux.ibm.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

Linux-BTRFS Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/linux-btrfs/0 linux-btrfs/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-btrfs linux-btrfs/ https://lore.kernel.org/linux-btrfs \
		linux-btrfs@vger.kernel.org
	public-inbox-index linux-btrfs

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.linux-btrfs


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git