From: Ross Zwisler <ross.zwisler@linux.intel.com>
To: linux-kernel@vger.kernel.org
Cc: linux-arch@vger.kernel.org, Jan Kara <jack@suse.cz>,
Andrew Morton <akpm@linux-foundation.org>,
Arnd Bergmann <arnd@arndb.de>,
Matthew Wilcox <mawilcox@microsoft.com>,
linux-nvdimm@lists.01.org, Dave Chinner <david@fromorbit.com>,
Christoph Hellwig <hch@lst.de>,
linux-mm@kvack.org, Dave Hansen <dave.hansen@intel.com>,
Alexander Viro <viro@zeniv.linux.org.uk>,
linux-fsdevel@vger.kernel.org
Subject: [PATCH v2 0/4] Write protect DAX PMDs in *sync path
Date: Thu, 22 Dec 2016 14:18:52 -0700 [thread overview]
Message-ID: <1482441536-14550-1-git-send-email-ross.zwisler@linux.intel.com> (raw)
Currently dax_mapping_entry_mkclean() fails to clean and write protect the
pmd_t of a DAX PMD entry during an *sync operation. This can result in
data loss, as detailed in patch 4.
You can find a working tree here:
https://git.kernel.org/cgit/linux/kernel/git/zwisler/linux.git/log/?h=dax_pmd_clean_v2
This series applies cleanly to mmotm-2016-12-19-16-31.
Changes since v1:
- Included Dan's patch to kill DAX support for UML.
- Instead of wrapping the DAX PMD code in dax_mapping_entry_mkclean() in
an #ifdef, we now create a stub for pmdp_huge_clear_flush() for the case
when CONFIG_TRANSPARENT_HUGEPAGE isn't defined. (Dan & Jan)
Dan Williams (1):
dax: kill uml support
Ross Zwisler (3):
dax: add stub for pmdp_huge_clear_flush()
mm: add follow_pte_pmd()
dax: wrprotect pmd_t in dax_mapping_entry_mkclean
fs/Kconfig | 2 +-
fs/dax.c | 49 ++++++++++++++++++++++++++++++-------------
include/asm-generic/pgtable.h | 10 +++++++++
include/linux/mm.h | 4 ++--
mm/memory.c | 41 ++++++++++++++++++++++++++++--------
5 files changed, 79 insertions(+), 27 deletions(-)
--
2.7.4
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WARNING: multiple messages have this Message-ID (diff)
From: Ross Zwisler <ross.zwisler@linux.intel.com>
To: linux-kernel@vger.kernel.org
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>,
Alexander Viro <viro@zeniv.linux.org.uk>,
Andrew Morton <akpm@linux-foundation.org>,
Arnd Bergmann <arnd@arndb.de>, Christoph Hellwig <hch@lst.de>,
Dan Williams <dan.j.williams@intel.com>,
Dave Chinner <david@fromorbit.com>,
Dave Hansen <dave.hansen@intel.com>, Jan Kara <jack@suse.cz>,
Matthew Wilcox <mawilcox@microsoft.com>,
linux-arch@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-mm@kvack.org, linux-nvdimm@ml01.01.org
Subject: [PATCH v2 0/4] Write protect DAX PMDs in *sync path
Date: Thu, 22 Dec 2016 14:18:52 -0700 [thread overview]
Message-ID: <1482441536-14550-1-git-send-email-ross.zwisler@linux.intel.com> (raw)
Currently dax_mapping_entry_mkclean() fails to clean and write protect the
pmd_t of a DAX PMD entry during an *sync operation. This can result in
data loss, as detailed in patch 4.
You can find a working tree here:
https://git.kernel.org/cgit/linux/kernel/git/zwisler/linux.git/log/?h=dax_pmd_clean_v2
This series applies cleanly to mmotm-2016-12-19-16-31.
Changes since v1:
- Included Dan's patch to kill DAX support for UML.
- Instead of wrapping the DAX PMD code in dax_mapping_entry_mkclean() in
an #ifdef, we now create a stub for pmdp_huge_clear_flush() for the case
when CONFIG_TRANSPARENT_HUGEPAGE isn't defined. (Dan & Jan)
Dan Williams (1):
dax: kill uml support
Ross Zwisler (3):
dax: add stub for pmdp_huge_clear_flush()
mm: add follow_pte_pmd()
dax: wrprotect pmd_t in dax_mapping_entry_mkclean
fs/Kconfig | 2 +-
fs/dax.c | 49 ++++++++++++++++++++++++++++++-------------
include/asm-generic/pgtable.h | 10 +++++++++
include/linux/mm.h | 4 ++--
mm/memory.c | 41 ++++++++++++++++++++++++++++--------
5 files changed, 79 insertions(+), 27 deletions(-)
--
2.7.4
WARNING: multiple messages have this Message-ID (diff)
From: Ross Zwisler <ross.zwisler@linux.intel.com>
To: linux-kernel@vger.kernel.org
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>,
Alexander Viro <viro@zeniv.linux.org.uk>,
Andrew Morton <akpm@linux-foundation.org>,
Arnd Bergmann <arnd@arndb.de>, Christoph Hellwig <hch@lst.de>,
Dan Williams <dan.j.williams@intel.com>,
Dave Chinner <david@fromorbit.com>,
Dave Hansen <dave.hansen@intel.com>, Jan Kara <jack@suse.cz>,
Matthew Wilcox <mawilcox@microsoft.com>,
linux-arch@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-mm@kvack.org, linux-nvdimm@lists.01.org
Subject: [PATCH v2 0/4] Write protect DAX PMDs in *sync path
Date: Thu, 22 Dec 2016 14:18:52 -0700 [thread overview]
Message-ID: <1482441536-14550-1-git-send-email-ross.zwisler@linux.intel.com> (raw)
Currently dax_mapping_entry_mkclean() fails to clean and write protect the
pmd_t of a DAX PMD entry during an *sync operation. This can result in
data loss, as detailed in patch 4.
You can find a working tree here:
https://git.kernel.org/cgit/linux/kernel/git/zwisler/linux.git/log/?h=dax_pmd_clean_v2
This series applies cleanly to mmotm-2016-12-19-16-31.
Changes since v1:
- Included Dan's patch to kill DAX support for UML.
- Instead of wrapping the DAX PMD code in dax_mapping_entry_mkclean() in
an #ifdef, we now create a stub for pmdp_huge_clear_flush() for the case
when CONFIG_TRANSPARENT_HUGEPAGE isn't defined. (Dan & Jan)
Dan Williams (1):
dax: kill uml support
Ross Zwisler (3):
dax: add stub for pmdp_huge_clear_flush()
mm: add follow_pte_pmd()
dax: wrprotect pmd_t in dax_mapping_entry_mkclean
fs/Kconfig | 2 +-
fs/dax.c | 49 ++++++++++++++++++++++++++++++-------------
include/asm-generic/pgtable.h | 10 +++++++++
include/linux/mm.h | 4 ++--
mm/memory.c | 41 ++++++++++++++++++++++++++++--------
5 files changed, 79 insertions(+), 27 deletions(-)
--
2.7.4
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WARNING: multiple messages have this Message-ID (diff)
From: Ross Zwisler <ross.zwisler@linux.intel.com>
To: linux-kernel@vger.kernel.org
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>,
Alexander Viro <viro@zeniv.linux.org.uk>,
Andrew Morton <akpm@linux-foundation.org>,
Arnd Bergmann <arnd@arndb.de>, Christoph Hellwig <hch@lst.de>,
Dan Williams <dan.j.williams@intel.com>,
Dave Chinner <david@fromorbit.com>,
Dave Hansen <dave.hansen@intel.com>, Jan Kara <jack@suse.cz>,
Matthew Wilcox <mawilcox@microsoft.com>,
linux-arch@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-mm@kvack.org, linux-nvdimm@lists.01.org
Subject: [PATCH v2 0/4] Write protect DAX PMDs in *sync path
Date: Thu, 22 Dec 2016 14:18:52 -0700 [thread overview]
Message-ID: <1482441536-14550-1-git-send-email-ross.zwisler@linux.intel.com> (raw)
Message-ID: <20161222211852.8TpGUELYB4En1EcQ9zfVLCpemLzJ-IOwg75HZWaBTXA@z> (raw)
Currently dax_mapping_entry_mkclean() fails to clean and write protect the
pmd_t of a DAX PMD entry during an *sync operation. This can result in
data loss, as detailed in patch 4.
You can find a working tree here:
https://git.kernel.org/cgit/linux/kernel/git/zwisler/linux.git/log/?h=dax_pmd_clean_v2
This series applies cleanly to mmotm-2016-12-19-16-31.
Changes since v1:
- Included Dan's patch to kill DAX support for UML.
- Instead of wrapping the DAX PMD code in dax_mapping_entry_mkclean() in
an #ifdef, we now create a stub for pmdp_huge_clear_flush() for the case
when CONFIG_TRANSPARENT_HUGEPAGE isn't defined. (Dan & Jan)
Dan Williams (1):
dax: kill uml support
Ross Zwisler (3):
dax: add stub for pmdp_huge_clear_flush()
mm: add follow_pte_pmd()
dax: wrprotect pmd_t in dax_mapping_entry_mkclean
fs/Kconfig | 2 +-
fs/dax.c | 49 ++++++++++++++++++++++++++++++-------------
include/asm-generic/pgtable.h | 10 +++++++++
include/linux/mm.h | 4 ++--
mm/memory.c | 41 ++++++++++++++++++++++++++++--------
5 files changed, 79 insertions(+), 27 deletions(-)
--
2.7.4
next reply other threads:[~2016-12-22 21:19 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-22 21:18 Ross Zwisler [this message]
2016-12-22 21:18 ` [PATCH v2 0/4] Write protect DAX PMDs in *sync path Ross Zwisler
2016-12-22 21:18 ` Ross Zwisler
2016-12-22 21:18 ` Ross Zwisler
2016-12-22 21:18 ` [PATCH v2 1/4] dax: kill uml support Ross Zwisler
2016-12-22 21:18 ` Ross Zwisler
2016-12-22 21:18 ` Ross Zwisler
2016-12-22 21:18 ` Ross Zwisler
2016-12-23 13:45 ` Jan Kara
2016-12-23 13:45 ` Jan Kara
2016-12-23 13:45 ` Jan Kara
2016-12-23 13:45 ` Jan Kara
2016-12-23 13:45 ` Jan Kara
2016-12-22 21:18 ` [PATCH v2 2/4] dax: add stub for pmdp_huge_clear_flush() Ross Zwisler
2016-12-22 21:18 ` Ross Zwisler
2016-12-22 21:18 ` Ross Zwisler
2016-12-22 21:18 ` Ross Zwisler
2016-12-22 21:18 ` Ross Zwisler
2016-12-23 13:44 ` Jan Kara
2016-12-23 13:44 ` Jan Kara
2016-12-23 13:44 ` Jan Kara
2016-12-23 13:44 ` Jan Kara
2016-12-23 13:44 ` Jan Kara
2016-12-22 21:18 ` [PATCH v2 3/4] mm: add follow_pte_pmd() Ross Zwisler
2016-12-22 21:18 ` Ross Zwisler
2016-12-22 21:18 ` Ross Zwisler
2016-12-22 21:18 ` Ross Zwisler
2016-12-22 21:18 ` [PATCH v2 4/4] dax: wrprotect pmd_t in dax_mapping_entry_mkclean Ross Zwisler
2016-12-22 21:18 ` Ross Zwisler
2016-12-22 21:18 ` Ross Zwisler
2016-12-22 21:18 ` Ross Zwisler
2016-12-22 21:18 ` Ross Zwisler
2017-01-04 0:13 ` [PATCH v2 0/4] Write protect DAX PMDs in *sync path Ross Zwisler
2017-01-04 0:13 ` Ross Zwisler
2017-01-04 0:13 ` Ross Zwisler
2017-01-04 0:13 ` Ross Zwisler
2017-01-04 0:13 ` Ross Zwisler
2017-01-04 0:13 ` Ross Zwisler
2017-01-06 1:27 ` Andrew Morton
2017-01-06 1:27 ` Andrew Morton
2017-01-06 18:18 ` Ross Zwisler
2017-01-06 18:18 ` Ross Zwisler
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