linux-kernel - [PATCH v6 RESEND 0/2] vfs: have syncfs() return error when there are writeback errors

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Message-Id: <20200428135155.19223-1-jlayton@kernel.org>
Date:   Tue, 28 Apr 2020 09:51:53 -0400
From:   Jeff Layton <jlayton@...nel.org>
To:     viro@...iv.linux.org.uk, akpm@...ux-foundation.org
Cc:     linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-api@...r.kernel.org, andres@...razel.de, willy@...radead.org,
        dhowells@...hat.com, hch@...radead.org, jack@...e.cz,
        david@...morbit.com
Subject: [PATCH v6 RESEND 0/2] vfs: have syncfs() return error when there are writeback errors

Just a resend since this hasn't been picked up yet. No real changes
from the last set (other than adding Jan's Reviewed-bys). Latest
cover letter follows:

--------------------------8<----------------------------

v6:
- use READ_ONCE to ensure that compiler doesn't optimize away local var

The only difference from v5 is the change to use READ_ONCE to fetch the
bd_super pointer, to ensure that the compiler doesn't refetch it
afterward. Many thanks to Jan K. for the explanation!

Jeff Layton (2):
  vfs: track per-sb writeback errors and report them to syncfs
  buffer: record blockdev write errors in super_block that it backs

 drivers/dax/device.c    |  1 +
 fs/buffer.c             |  7 +++++++
 fs/file_table.c         |  1 +
 fs/open.c               |  3 +--
 fs/sync.c               |  6 ++++--
 include/linux/fs.h      | 16 ++++++++++++++++
 include/linux/pagemap.h |  5 ++++-
 7 files changed, 34 insertions(+), 5 deletions(-)

-- 
2.26.1