From: Vishal Verma <vishal.l.verma@intel.com>
To: linux-nvdimm@lists.01.org
Cc: Jens Axboe <axboe@fb.com>, Jan Kara <jack@suse.cz>,
Andrew Morton <akpm@linux-foundation.org>,
Dave Chinner <david@fromorbit.com>,
xfs@oss.sgi.com, linux-block@vger.kernel.org, linux-mm@kvack.org,
Matthew Wilcox <matthew.r.wilcox@intel.com>,
linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org,
Al Viro <viro@zeniv.linux.org.uk>
Subject: [PATCH 0/5] dax: handling of media errors
Date: Thu, 24 Mar 2016 17:17:25 -0600 [thread overview]
Message-ID: <1458861450-17705-1-git-send-email-vishal.l.verma@intel.com> (raw)
Until now, dax has been disabled if media errors were found on
any device. This series attempts to address that.
The first three patches from Dan re-enable dax even when media
errors are present.
The fourth patch from Matthew removes the
zeroout path from dax entirely, making zeroout operations always
go through the driver (The motivation is that if a backing device
has media errors, and we create a sparse file on it, we don't
want the initial zeroing to happen via dax, we want to give the
block driver a chance to clear the errors).
The fifth patch changes the behaviour of dax_do_io by adding a
wrapper around it that is passed all the arguments also needed by
__blockdev_do_direct_IO. If (the new) __dax_do_io fails with -EIO
due to a bad block, we simply retry with the direct_IO path which
forces the IO to go through the block driver, and can attempt to
clear the error.
Dan Williams (3):
block, dax: pass blk_dax_ctl through to drivers
dax: fallback from pmd to pte on error
dax: enable dax in the presence of known media errors (badblocks)
Vishal Verma (2):
dax: use sb_issue_zerout instead of calling dax_clear_sectors
dax: handle media errors in dax_do_io
arch/powerpc/sysdev/axonram.c | 10 +++----
block/ioctl.c | 9 ------
drivers/block/brd.c | 9 +++---
drivers/nvdimm/pmem.c | 17 ++++++++---
drivers/s390/block/dcssblk.c | 12 ++++----
fs/block_dev.c | 7 +++--
fs/dax.c | 70 +++++++++++++++++++++----------------------
fs/ext2/inode.c | 12 ++++----
fs/ext4/indirect.c | 11 ++++---
fs/ext4/inode.c | 5 ++--
fs/xfs/xfs_aops.c | 7 +++--
fs/xfs/xfs_bmap_util.c | 9 ------
include/linux/blkdev.h | 3 +-
include/linux/dax.h | 7 +++--
14 files changed, 93 insertions(+), 95 deletions(-)
--
2.5.5
_______________________________________________
Linux-nvdimm mailing list
Linux-nvdimm@lists.01.org
https://lists.01.org/mailman/listinfo/linux-nvdimm
WARNING: multiple messages have this Message-ID (diff)
From: Vishal Verma <vishal.l.verma@intel.com>
To: linux-nvdimm@lists.01.org
Cc: Vishal Verma <vishal.l.verma@intel.com>,
linux-fsdevel@vger.kernel.org, linux-block@vger.kernel.org,
xfs@oss.sgi.com, linux-ext4@vger.kernel.org, linux-mm@kvack.org,
Matthew Wilcox <matthew.r.wilcox@intel.com>,
Ross Zwisler <ross.zwisler@linux.intel.com>,
Dan Williams <dan.j.williams@intel.com>,
Dave Chinner <david@fromorbit.com>, Jan Kara <jack@suse.cz>,
Jens Axboe <axboe@fb.com>, Al Viro <viro@zeniv.linux.org.uk>,
Andrew Morton <akpm@linux-foundation.org>
Subject: [PATCH 0/5] dax: handling of media errors
Date: Thu, 24 Mar 2016 17:17:25 -0600 [thread overview]
Message-ID: <1458861450-17705-1-git-send-email-vishal.l.verma@intel.com> (raw)
Until now, dax has been disabled if media errors were found on
any device. This series attempts to address that.
The first three patches from Dan re-enable dax even when media
errors are present.
The fourth patch from Matthew removes the
zeroout path from dax entirely, making zeroout operations always
go through the driver (The motivation is that if a backing device
has media errors, and we create a sparse file on it, we don't
want the initial zeroing to happen via dax, we want to give the
block driver a chance to clear the errors).
The fifth patch changes the behaviour of dax_do_io by adding a
wrapper around it that is passed all the arguments also needed by
__blockdev_do_direct_IO. If (the new) __dax_do_io fails with -EIO
due to a bad block, we simply retry with the direct_IO path which
forces the IO to go through the block driver, and can attempt to
clear the error.
Dan Williams (3):
block, dax: pass blk_dax_ctl through to drivers
dax: fallback from pmd to pte on error
dax: enable dax in the presence of known media errors (badblocks)
Vishal Verma (2):
dax: use sb_issue_zerout instead of calling dax_clear_sectors
dax: handle media errors in dax_do_io
arch/powerpc/sysdev/axonram.c | 10 +++----
block/ioctl.c | 9 ------
drivers/block/brd.c | 9 +++---
drivers/nvdimm/pmem.c | 17 ++++++++---
drivers/s390/block/dcssblk.c | 12 ++++----
fs/block_dev.c | 7 +++--
fs/dax.c | 70 +++++++++++++++++++++----------------------
fs/ext2/inode.c | 12 ++++----
fs/ext4/indirect.c | 11 ++++---
fs/ext4/inode.c | 5 ++--
fs/xfs/xfs_aops.c | 7 +++--
fs/xfs/xfs_bmap_util.c | 9 ------
include/linux/blkdev.h | 3 +-
include/linux/dax.h | 7 +++--
14 files changed, 93 insertions(+), 95 deletions(-)
--
2.5.5
--
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WARNING: multiple messages have this Message-ID (diff)
From: Vishal Verma <vishal.l.verma@intel.com>
To: linux-nvdimm@lists.01.org
Cc: Vishal Verma <vishal.l.verma@intel.com>,
linux-fsdevel@vger.kernel.org, linux-block@vger.kernel.org,
xfs@oss.sgi.com, linux-ext4@vger.kernel.org, linux-mm@kvack.org,
Matthew Wilcox <matthew.r.wilcox@intel.com>,
Ross Zwisler <ross.zwisler@linux.intel.com>,
Dan Williams <dan.j.williams@intel.com>,
Dave Chinner <david@fromorbit.com>, Jan Kara <jack@suse.cz>,
Jens Axboe <axboe@fb.com>, Al Viro <viro@zeniv.linux.org.uk>,
Andrew Morton <akpm@linux-foundation.org>
Subject: [PATCH 0/5] dax: handling of media errors
Date: Thu, 24 Mar 2016 17:17:25 -0600 [thread overview]
Message-ID: <1458861450-17705-1-git-send-email-vishal.l.verma@intel.com> (raw)
Until now, dax has been disabled if media errors were found on
any device. This series attempts to address that.
The first three patches from Dan re-enable dax even when media
errors are present.
The fourth patch from Matthew removes the
zeroout path from dax entirely, making zeroout operations always
go through the driver (The motivation is that if a backing device
has media errors, and we create a sparse file on it, we don't
want the initial zeroing to happen via dax, we want to give the
block driver a chance to clear the errors).
The fifth patch changes the behaviour of dax_do_io by adding a
wrapper around it that is passed all the arguments also needed by
__blockdev_do_direct_IO. If (the new) __dax_do_io fails with -EIO
due to a bad block, we simply retry with the direct_IO path which
forces the IO to go through the block driver, and can attempt to
clear the error.
Dan Williams (3):
block, dax: pass blk_dax_ctl through to drivers
dax: fallback from pmd to pte on error
dax: enable dax in the presence of known media errors (badblocks)
Vishal Verma (2):
dax: use sb_issue_zerout instead of calling dax_clear_sectors
dax: handle media errors in dax_do_io
arch/powerpc/sysdev/axonram.c | 10 +++----
block/ioctl.c | 9 ------
drivers/block/brd.c | 9 +++---
drivers/nvdimm/pmem.c | 17 ++++++++---
drivers/s390/block/dcssblk.c | 12 ++++----
fs/block_dev.c | 7 +++--
fs/dax.c | 70 +++++++++++++++++++++----------------------
fs/ext2/inode.c | 12 ++++----
fs/ext4/indirect.c | 11 ++++---
fs/ext4/inode.c | 5 ++--
fs/xfs/xfs_aops.c | 7 +++--
fs/xfs/xfs_bmap_util.c | 9 ------
include/linux/blkdev.h | 3 +-
include/linux/dax.h | 7 +++--
14 files changed, 93 insertions(+), 95 deletions(-)
--
2.5.5
WARNING: multiple messages have this Message-ID (diff)
From: Vishal Verma <vishal.l.verma@intel.com>
To: linux-nvdimm@lists.01.org
Cc: Jens Axboe <axboe@fb.com>, Jan Kara <jack@suse.cz>,
Andrew Morton <akpm@linux-foundation.org>,
Vishal Verma <vishal.l.verma@intel.com>,
xfs@oss.sgi.com, linux-block@vger.kernel.org, linux-mm@kvack.org,
Matthew Wilcox <matthew.r.wilcox@intel.com>,
linux-fsdevel@vger.kernel.org,
Ross Zwisler <ross.zwisler@linux.intel.com>,
linux-ext4@vger.kernel.org,
Dan Williams <dan.j.williams@intel.com>,
Al Viro <viro@zeniv.linux.org.uk>
Subject: [PATCH 0/5] dax: handling of media errors
Date: Thu, 24 Mar 2016 17:17:25 -0600 [thread overview]
Message-ID: <1458861450-17705-1-git-send-email-vishal.l.verma@intel.com> (raw)
Until now, dax has been disabled if media errors were found on
any device. This series attempts to address that.
The first three patches from Dan re-enable dax even when media
errors are present.
The fourth patch from Matthew removes the
zeroout path from dax entirely, making zeroout operations always
go through the driver (The motivation is that if a backing device
has media errors, and we create a sparse file on it, we don't
want the initial zeroing to happen via dax, we want to give the
block driver a chance to clear the errors).
The fifth patch changes the behaviour of dax_do_io by adding a
wrapper around it that is passed all the arguments also needed by
__blockdev_do_direct_IO. If (the new) __dax_do_io fails with -EIO
due to a bad block, we simply retry with the direct_IO path which
forces the IO to go through the block driver, and can attempt to
clear the error.
Dan Williams (3):
block, dax: pass blk_dax_ctl through to drivers
dax: fallback from pmd to pte on error
dax: enable dax in the presence of known media errors (badblocks)
Vishal Verma (2):
dax: use sb_issue_zerout instead of calling dax_clear_sectors
dax: handle media errors in dax_do_io
arch/powerpc/sysdev/axonram.c | 10 +++----
block/ioctl.c | 9 ------
drivers/block/brd.c | 9 +++---
drivers/nvdimm/pmem.c | 17 ++++++++---
drivers/s390/block/dcssblk.c | 12 ++++----
fs/block_dev.c | 7 +++--
fs/dax.c | 70 +++++++++++++++++++++----------------------
fs/ext2/inode.c | 12 ++++----
fs/ext4/indirect.c | 11 ++++---
fs/ext4/inode.c | 5 ++--
fs/xfs/xfs_aops.c | 7 +++--
fs/xfs/xfs_bmap_util.c | 9 ------
include/linux/blkdev.h | 3 +-
include/linux/dax.h | 7 +++--
14 files changed, 93 insertions(+), 95 deletions(-)
--
2.5.5
_______________________________________________
xfs mailing list
xfs@oss.sgi.com
http://oss.sgi.com/mailman/listinfo/xfs
next reply other threads:[~2016-03-24 23:18 UTC|newest]
Thread overview: 74+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-24 23:17 Vishal Verma [this message]
2016-03-24 23:17 ` [PATCH 0/5] dax: handling of media errors Vishal Verma
2016-03-24 23:17 ` Vishal Verma
2016-03-24 23:17 ` Vishal Verma
2016-03-24 23:17 ` [PATCH 1/5] block, dax: pass blk_dax_ctl through to drivers Vishal Verma
2016-03-24 23:17 ` Vishal Verma
2016-03-24 23:17 ` [PATCH 2/5] dax: fallback from pmd to pte on error Vishal Verma
2016-03-24 23:17 ` Vishal Verma
2016-03-24 23:17 ` Vishal Verma
2016-03-24 23:17 ` [PATCH 3/5] dax: enable dax in the presence of known media errors (badblocks) Vishal Verma
2016-03-24 23:17 ` Vishal Verma
2016-03-24 23:17 ` Vishal Verma
2016-03-24 23:23 ` Verma, Vishal L
2016-03-24 23:23 ` Verma, Vishal L
2016-03-24 23:23 ` Verma, Vishal L
2016-03-24 23:17 ` [PATCH 4/5] dax: use sb_issue_zerout instead of calling dax_clear_sectors Vishal Verma
2016-03-24 23:17 ` Vishal Verma
2016-03-24 23:17 ` Vishal Verma
2016-03-25 10:44 ` Christoph Hellwig
2016-03-25 10:44 ` Christoph Hellwig
2016-03-25 21:01 ` Verma, Vishal L
2016-03-25 21:01 ` Verma, Vishal L
2016-03-25 18:47 ` Dan Williams
2016-03-25 18:47 ` Dan Williams
2016-03-25 18:47 ` Dan Williams
2016-03-25 21:03 ` Verma, Vishal L
2016-03-25 21:03 ` Verma, Vishal L
2016-03-25 21:03 ` Verma, Vishal L
2016-03-25 21:20 ` Dan Williams
2016-03-25 21:20 ` Dan Williams
2016-03-25 21:20 ` Dan Williams
2016-03-28 20:01 ` Verma, Vishal L
2016-03-28 20:01 ` Verma, Vishal L
2016-03-28 20:01 ` Verma, Vishal L
2016-03-28 23:34 ` Dan Williams
2016-03-28 23:34 ` Dan Williams
2016-03-28 23:34 ` Dan Williams
2016-03-28 23:34 ` Dan Williams
2016-03-29 18:57 ` Verma, Vishal L
2016-03-29 18:57 ` Verma, Vishal L
2016-03-29 18:57 ` Verma, Vishal L
2016-03-29 18:57 ` Verma, Vishal L
2016-03-29 19:37 ` Dan Williams
2016-03-29 19:37 ` Dan Williams
2016-03-29 19:37 ` Dan Williams
2016-03-29 19:37 ` Dan Williams
2016-03-30 7:49 ` Jan Kara
2016-03-30 7:49 ` Jan Kara
2016-03-30 7:49 ` Jan Kara
2016-03-30 7:49 ` Jan Kara
2016-03-30 7:49 ` Jan Kara
2016-04-01 19:17 ` Verma, Vishal L
2016-04-01 19:17 ` Verma, Vishal L
2016-04-01 19:17 ` Verma, Vishal L
2016-04-04 12:09 ` Jan Kara
2016-04-04 12:09 ` Jan Kara
2016-04-04 12:09 ` Jan Kara
2016-04-04 12:09 ` Jan Kara
2016-04-04 12:09 ` Jan Kara
2016-03-24 23:17 ` [PATCH 5/5] dax: handle media errors in dax_do_io Vishal Verma
2016-03-24 23:17 ` Vishal Verma
2016-03-24 23:17 ` Vishal Verma
2016-03-25 10:45 ` Christoph Hellwig
2016-03-25 10:45 ` Christoph Hellwig
2016-03-25 10:45 ` Christoph Hellwig
2016-03-25 20:59 ` Verma, Vishal L
2016-03-25 20:59 ` Verma, Vishal L
2016-03-25 21:42 ` Dan Williams
2016-03-25 21:42 ` Dan Williams
2016-03-25 22:36 ` Verma, Vishal L
2016-03-25 22:36 ` Verma, Vishal L
2016-03-25 22:36 ` Verma, Vishal L
2016-03-26 16:53 ` hch
2016-03-26 16:53 ` hch
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