[0/15,v2] BTRFS DIO inode locking/D_SYNC fix

Message ID	20200921144353.31319-1-rgoldwyn@suse.de (mailing list archive)
Headers	show Return-Path: <SRS0=y50c=C6=vger.kernel.org=linux-btrfs-owner@kernel.org> From: Goldwyn Rodrigues <rgoldwyn@suse.de> To: linux-fsdevel@vger.kernel.org Cc: linux-btrfs@vger.kernel.org, david@fromorbit.com, hch@lst.de, johannes.thumshirn@wdc.com, dsterba@suse.com, darrick.wong@oracle.com, josef@toxicpanda.com Subject: [PATCH 0/15 v2] BTRFS DIO inode locking/D_SYNC fix Date: Mon, 21 Sep 2020 09:43:38 -0500 Message-Id: <20200921144353.31319-1-rgoldwyn@suse.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk
Series	BTRFS DIO inode locking/D_SYNC fix \| expand [0/15,v2] BTRFS DIO inode locking/D_SYNC fix [01/15] fs: remove dio_end_io() [02/15] btrfs: remove BTRFS_INODE_READDIO_NEED_LOCK [03/15] iomap: Allow filesystem to call iomap_dio_complete without i_rwsem [04/15] iomap: Call inode_dio_end() before generic_write_sync() [05/15] btrfs: split btrfs_direct_IO to read and write [06/15] btrfs: Move pos increment and pagecache extension to btrfs_buffered_write() [07/15] btrfs: Move FS error state bit early during write [08/15] btrfs: Introduce btrfs_write_check() [09/15] btrfs: Introduce btrfs_inode_lock()/unlock() [10/15] btrfs: Push inode locking and unlocking into buffered/direct write [11/15] btrfs: Use inode_lock_shared() for direct writes within EOF [12/15] btrfs: Remove dio_sem [13/15] btrfs: Call iomap_dio_complete() without inode_lock [14/15] btrfs: Revert 09745ff88d93 ("btrfs: dio iomap DSYNC workaround") [15/15] iomap: Reinstate lockdep_assert_held in iomap_dio_rw()

Message ID

20200921144353.31319-1-rgoldwyn@suse.de (mailing list archive)

Headers

From: Goldwyn Rodrigues <rgoldwyn@suse.de>
To: linux-fsdevel@vger.kernel.org
Cc: linux-btrfs@vger.kernel.org, david@fromorbit.com, hch@lst.de,
        johannes.thumshirn@wdc.com, dsterba@suse.com,
        darrick.wong@oracle.com, josef@toxicpanda.com
Subject: [PATCH 0/15 v2] BTRFS DIO inode locking/D_SYNC fix
Date: Mon, 21 Sep 2020 09:43:38 -0500
Message-Id: <20200921144353.31319-1-rgoldwyn@suse.de>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

Series

BTRFS DIO inode locking/D_SYNC fix | expand

Message

Goldwyn Rodrigues Sept. 21, 2020, 2:43 p.m. UTC

I have merged two series here:
(1) Using inode_lock_shared for <EOF DIO writes
(2) Fix O_DSYNC | O_DIRECT

Both require inode locking to be pushed closer to I/O calls and thought
was relevant. (2) requires changes in iomap code. If there is a need to 
separate the two please let me know. I don't have any ulterior motives
here ;)

Testing: xfstests on both btrfs and xfs

Git: https://github.com/goldwynr/linux/tree/btrfs-inode-lock

Changes since v1:

 - Changed fix for deadlock due to O_DSYNC (iomap patches added)
 - btrfs_inode_lock() shifted to inode.c
 - Reinstated lockdep_assert_held() in iomap_dio_rw()