From: Jeff Layton <jlayton@redhat.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Al Viro <viro@ZenIV.linux.org.uk>, Jan Kara <jack@suse.cz>,
tytso@mit.edu, axboe@kernel.dk, mawilcox@microsoft.com,
ross.zwisler@linux.intel.com, corbet@lwn.net,
Chris Mason <clm@fb.com>, Josef Bacik <jbacik@fb.com>,
David Sterba <dsterba@suse.com>,
"Darrick J . Wong" <darrick.wong@oracle.com>,
linux-fsdevel@vger.kernel.org, linux-mm@kvack.org,
linux-ext4@vger.kernel.org, linux-xfs@vger.kernel.org,
linux-btrfs@vger.kernel.org, linux-block@vger.kernel.org
Subject: Re: [PATCH v6 12/20] fs: add a new fstype flag to indicate how writeback errors are tracked
Date: Thu, 15 Jun 2017 06:42:12 -0400 [thread overview]
Message-ID: <1497523332.4556.1.camel@redhat.com> (raw)
In-Reply-To: <20170615082221.GA22809@infradead.org>
On Thu, 2017-06-15 at 01:22 -0700, Christoph Hellwig wrote:
> On Wed, Jun 14, 2017 at 01:24:43PM -0400, Jeff Layton wrote:
> > In this smaller set, it's only really used for DAX.
>
> DAX only is implemented by three filesystems, please just fix them
> up in one go.
>
Ok.
> > sync_file_range: ->fsync isn't called directly there, and I think we
> > probably want similar semantics to fsync() for it
>
> sync_file_range is only supposed to sync data, so it should not call
> ->fsync.
>
Correct.
But if there is a data writeback error, should we report an error on all
open fds at that time (like we will for fsync)?
I think we probably do want to do that, but like you say...there is no
file op for sync_file_range. It'll need some way to figure out what sort
of error tracking is in play.
> > JBD2: will try to re-set the error after clearing it with
> > filemap_fdatawait. That's problematic with the new infrastructure so we
> > need some way to avoid it.
>
> JBD2 only has two users, please fix them up in one go.
I came up with a fix yesterday that makes the flag unnecessary there.
Thanks,
--
Jeff Layton <jlayton@redhat.com>
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next prev parent reply other threads:[~2017-06-15 10:42 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-12 12:22 [PATCH v6 00/20] fs: enhanced writeback error reporting with errseq_t (pile #1) Jeff Layton
2017-06-12 12:22 ` [PATCH v6 01/20] mm: fix mapping_set_error call in me_pagecache_dirty Jeff Layton
2017-06-12 12:22 ` [PATCH v6 02/20] buffer: use mapping_set_error instead of setting the flag Jeff Layton
2017-06-12 12:22 ` [PATCH v6 03/20] fs: check for writeback errors after syncing out buffers in generic_file_fsync Jeff Layton
2017-06-12 12:22 ` [PATCH v6 04/20] buffer: set errors in mapping at the time that the error occurs Jeff Layton
2017-06-12 12:22 ` [PATCH v6 05/20] mm: don't TestClearPageError in __filemap_fdatawait_range Jeff Layton
2017-06-12 12:22 ` [PATCH v6 06/20] mm: drop "wait" parameter from write_one_page Jeff Layton
2017-06-12 12:22 ` [PATCH v6 07/20] mm: clean up error handling in write_one_page Jeff Layton
2017-06-12 12:23 ` [PATCH v6 08/20] lib: add errseq_t type and infrastructure for handling it Jeff Layton
2017-06-12 12:23 ` [PATCH v6 09/20] fs: new infrastructure for writeback error handling and reporting Jeff Layton
2017-06-12 12:23 ` [PATCH v6 10/13] ext4: add more robust reporting of metadata writeback errors Jeff Layton
2017-06-12 12:23 ` [PATCH v6 10/20] mm: tracepoints for writeback error events Jeff Layton
2017-06-12 12:23 ` [PATCH v6 11/13] Documentation: flesh out the section in vfs.txt on storing and reporting writeback errors Jeff Layton
2017-06-12 12:23 ` [PATCH v6 11/20] mm: set both AS_EIO/AS_ENOSPC and errseq_t in mapping_set_error Jeff Layton
2017-06-12 12:23 ` [PATCH v6 12/20] fs: add a new fstype flag to indicate how writeback errors are tracked Jeff Layton
2017-06-12 12:45 ` Christoph Hellwig
2017-06-13 10:24 ` Jeff Layton
2017-06-14 6:47 ` Christoph Hellwig
2017-06-14 17:24 ` Jeff Layton
2017-06-15 8:22 ` Christoph Hellwig
2017-06-15 10:42 ` Jeff Layton [this message]
2017-06-15 14:57 ` Christoph Hellwig
2017-06-15 15:03 ` Jeff Layton
2017-06-12 12:23 ` [PATCH v6 12/13] xfs: minimal conversion to errseq_t writeback error reporting Jeff Layton
2017-06-12 12:23 ` [PATCH v6 13/13] btrfs: minimal conversion to errseq_t writeback error reporting on fsync Jeff Layton
2017-06-12 12:23 ` [PATCH v6 13/20] Documentation: flesh out the section in vfs.txt on storing and reporting writeback errors Jeff Layton
2017-06-12 12:23 ` [PATCH v6 14/20] dax: set errors in mapping when writeback fails Jeff Layton
2017-06-12 12:44 ` Christoph Hellwig
2017-06-12 12:23 ` [PATCH v6 15/20] fs: have call_fsync call filemap_report_wb_err if FS_WB_ERRSEQ is set Jeff Layton
2017-06-12 12:42 ` Christoph Hellwig
2017-06-12 12:23 ` [PATCH v6 16/20] block: convert to errseq_t based writeback error tracking Jeff Layton
2017-06-12 12:23 ` [PATCH v6 17/20] fs: add f_md_wb_err field to struct file for tracking metadata errors Jeff Layton
2017-06-12 12:23 ` [PATCH v6 18/20] ext4: use errseq_t based error handling for reporting data writeback errors Jeff Layton
2017-06-12 12:23 ` [PATCH v6 19/20] xfs: minimal conversion to errseq_t writeback error reporting Jeff Layton
2017-06-13 4:30 ` Darrick J. Wong
2017-06-13 10:27 ` Jeff Layton
2017-06-12 12:23 ` [PATCH v6 20/20] btrfs: minimal conversion to errseq_t writeback error reporting on fsync Jeff Layton
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