Revision tags: v6.6.35, v6.6.34, v6.6.33, v6.6.32, v6.6.31, v6.6.30 |
|
#
3ffef551 |
| 02-May-2024 |
Christoph Hellwig <hch@lst.de> |
block: add a partscan sysfs attribute for disks
commit a4217c6740dc64a3eb6815868a9260825e8c68c6 upstream.
Userspace had been unknowingly relying on a non-stable interface of kernel internals to det
block: add a partscan sysfs attribute for disks
commit a4217c6740dc64a3eb6815868a9260825e8c68c6 upstream.
Userspace had been unknowingly relying on a non-stable interface of kernel internals to determine if partition scanning is enabled for a given disk. Provide a stable interface for this purpose instead.
Cc: stable@vger.kernel.org # 6.3+ Depends-on: 140ce28dd3be ("block: add a disk_has_partscan helper") Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/linux-block/ZhQJf8mzq_wipkBH@gardel-login/ Link: https://lore.kernel.org/r/20240502130033.1958492-3-hch@lst.de [axboe: add links and commit message from Keith] Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
show more ...
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Revision tags: v6.6.35, v6.6.34, v6.6.33, v6.6.32, v6.6.31, v6.6.30 |
|
#
3ffef551 |
| 02-May-2024 |
Christoph Hellwig <hch@lst.de> |
block: add a partscan sysfs attribute for disks
commit a4217c6740dc64a3eb6815868a9260825e8c68c6 upstream.
Userspace had been unknowingly relying on a non-stable interface of kernel internals to det
block: add a partscan sysfs attribute for disks
commit a4217c6740dc64a3eb6815868a9260825e8c68c6 upstream.
Userspace had been unknowingly relying on a non-stable interface of kernel internals to determine if partition scanning is enabled for a given disk. Provide a stable interface for this purpose instead.
Cc: stable@vger.kernel.org # 6.3+ Depends-on: 140ce28dd3be ("block: add a disk_has_partscan helper") Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/linux-block/ZhQJf8mzq_wipkBH@gardel-login/ Link: https://lore.kernel.org/r/20240502130033.1958492-3-hch@lst.de [axboe: add links and commit message from Keith] Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
show more ...
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Revision tags: v6.6.35, v6.6.34, v6.6.33, v6.6.32, v6.6.31, v6.6.30 |
|
#
3ffef551 |
| 02-May-2024 |
Christoph Hellwig <hch@lst.de> |
block: add a partscan sysfs attribute for disks
commit a4217c6740dc64a3eb6815868a9260825e8c68c6 upstream.
Userspace had been unknowingly relying on a non-stable interface of kernel internals to det
block: add a partscan sysfs attribute for disks
commit a4217c6740dc64a3eb6815868a9260825e8c68c6 upstream.
Userspace had been unknowingly relying on a non-stable interface of kernel internals to determine if partition scanning is enabled for a given disk. Provide a stable interface for this purpose instead.
Cc: stable@vger.kernel.org # 6.3+ Depends-on: 140ce28dd3be ("block: add a disk_has_partscan helper") Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/linux-block/ZhQJf8mzq_wipkBH@gardel-login/ Link: https://lore.kernel.org/r/20240502130033.1958492-3-hch@lst.de [axboe: add links and commit message from Keith] Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
show more ...
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Revision tags: v6.6.35, v6.6.34, v6.6.33, v6.6.32, v6.6.31, v6.6.30 |
|
#
3ffef551 |
| 02-May-2024 |
Christoph Hellwig <hch@lst.de> |
block: add a partscan sysfs attribute for disks
commit a4217c6740dc64a3eb6815868a9260825e8c68c6 upstream.
Userspace had been unknowingly relying on a non-stable interface of kernel internals to det
block: add a partscan sysfs attribute for disks
commit a4217c6740dc64a3eb6815868a9260825e8c68c6 upstream.
Userspace had been unknowingly relying on a non-stable interface of kernel internals to determine if partition scanning is enabled for a given disk. Provide a stable interface for this purpose instead.
Cc: stable@vger.kernel.org # 6.3+ Depends-on: 140ce28dd3be ("block: add a disk_has_partscan helper") Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/linux-block/ZhQJf8mzq_wipkBH@gardel-login/ Link: https://lore.kernel.org/r/20240502130033.1958492-3-hch@lst.de [axboe: add links and commit message from Keith] Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
show more ...
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Revision tags: v6.6.35, v6.6.34, v6.6.33, v6.6.32, v6.6.31, v6.6.30 |
|
#
3ffef551 |
| 02-May-2024 |
Christoph Hellwig <hch@lst.de> |
block: add a partscan sysfs attribute for disks
commit a4217c6740dc64a3eb6815868a9260825e8c68c6 upstream.
Userspace had been unknowingly relying on a non-stable interface of kernel internals to det
block: add a partscan sysfs attribute for disks
commit a4217c6740dc64a3eb6815868a9260825e8c68c6 upstream.
Userspace had been unknowingly relying on a non-stable interface of kernel internals to determine if partition scanning is enabled for a given disk. Provide a stable interface for this purpose instead.
Cc: stable@vger.kernel.org # 6.3+ Depends-on: 140ce28dd3be ("block: add a disk_has_partscan helper") Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/linux-block/ZhQJf8mzq_wipkBH@gardel-login/ Link: https://lore.kernel.org/r/20240502130033.1958492-3-hch@lst.de [axboe: add links and commit message from Keith] Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
show more ...
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Revision tags: v6.6.35, v6.6.34, v6.6.33, v6.6.32, v6.6.31, v6.6.30 |
|
#
3ffef551 |
| 02-May-2024 |
Christoph Hellwig <hch@lst.de> |
block: add a partscan sysfs attribute for disks
commit a4217c6740dc64a3eb6815868a9260825e8c68c6 upstream.
Userspace had been unknowingly relying on a non-stable interface of kernel internals to det
block: add a partscan sysfs attribute for disks
commit a4217c6740dc64a3eb6815868a9260825e8c68c6 upstream.
Userspace had been unknowingly relying on a non-stable interface of kernel internals to determine if partition scanning is enabled for a given disk. Provide a stable interface for this purpose instead.
Cc: stable@vger.kernel.org # 6.3+ Depends-on: 140ce28dd3be ("block: add a disk_has_partscan helper") Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/linux-block/ZhQJf8mzq_wipkBH@gardel-login/ Link: https://lore.kernel.org/r/20240502130033.1958492-3-hch@lst.de [axboe: add links and commit message from Keith] Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
show more ...
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Revision tags: v6.6.35, v6.6.34, v6.6.33, v6.6.32, v6.6.31, v6.6.30 |
|
#
3ffef551 |
| 02-May-2024 |
Christoph Hellwig <hch@lst.de> |
block: add a partscan sysfs attribute for disks
commit a4217c6740dc64a3eb6815868a9260825e8c68c6 upstream.
Userspace had been unknowingly relying on a non-stable interface of kernel internals to det
block: add a partscan sysfs attribute for disks
commit a4217c6740dc64a3eb6815868a9260825e8c68c6 upstream.
Userspace had been unknowingly relying on a non-stable interface of kernel internals to determine if partition scanning is enabled for a given disk. Provide a stable interface for this purpose instead.
Cc: stable@vger.kernel.org # 6.3+ Depends-on: 140ce28dd3be ("block: add a disk_has_partscan helper") Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/linux-block/ZhQJf8mzq_wipkBH@gardel-login/ Link: https://lore.kernel.org/r/20240502130033.1958492-3-hch@lst.de [axboe: add links and commit message from Keith] Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
show more ...
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Revision tags: v6.6.35, v6.6.34, v6.6.33, v6.6.32, v6.6.31, v6.6.30 |
|
#
3ffef551 |
| 02-May-2024 |
Christoph Hellwig <hch@lst.de> |
block: add a partscan sysfs attribute for disks
commit a4217c6740dc64a3eb6815868a9260825e8c68c6 upstream.
Userspace had been unknowingly relying on a non-stable interface of kernel internals to det
block: add a partscan sysfs attribute for disks
commit a4217c6740dc64a3eb6815868a9260825e8c68c6 upstream.
Userspace had been unknowingly relying on a non-stable interface of kernel internals to determine if partition scanning is enabled for a given disk. Provide a stable interface for this purpose instead.
Cc: stable@vger.kernel.org # 6.3+ Depends-on: 140ce28dd3be ("block: add a disk_has_partscan helper") Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/linux-block/ZhQJf8mzq_wipkBH@gardel-login/ Link: https://lore.kernel.org/r/20240502130033.1958492-3-hch@lst.de [axboe: add links and commit message from Keith] Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
show more ...
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Revision tags: v6.6.35, v6.6.34, v6.6.33, v6.6.32, v6.6.31, v6.6.30 |
|
#
3ffef551 |
| 02-May-2024 |
Christoph Hellwig <hch@lst.de> |
block: add a partscan sysfs attribute for disks
commit a4217c6740dc64a3eb6815868a9260825e8c68c6 upstream.
Userspace had been unknowingly relying on a non-stable interface of kernel internals to det
block: add a partscan sysfs attribute for disks
commit a4217c6740dc64a3eb6815868a9260825e8c68c6 upstream.
Userspace had been unknowingly relying on a non-stable interface of kernel internals to determine if partition scanning is enabled for a given disk. Provide a stable interface for this purpose instead.
Cc: stable@vger.kernel.org # 6.3+ Depends-on: 140ce28dd3be ("block: add a disk_has_partscan helper") Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/linux-block/ZhQJf8mzq_wipkBH@gardel-login/ Link: https://lore.kernel.org/r/20240502130033.1958492-3-hch@lst.de [axboe: add links and commit message from Keith] Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
show more ...
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Revision tags: v6.6.35, v6.6.34, v6.6.33, v6.6.32, v6.6.31, v6.6.30 |
|
#
3ffef551 |
| 02-May-2024 |
Christoph Hellwig <hch@lst.de> |
block: add a partscan sysfs attribute for disks
commit a4217c6740dc64a3eb6815868a9260825e8c68c6 upstream.
Userspace had been unknowingly relying on a non-stable interface of kernel internals to det
block: add a partscan sysfs attribute for disks
commit a4217c6740dc64a3eb6815868a9260825e8c68c6 upstream.
Userspace had been unknowingly relying on a non-stable interface of kernel internals to determine if partition scanning is enabled for a given disk. Provide a stable interface for this purpose instead.
Cc: stable@vger.kernel.org # 6.3+ Depends-on: 140ce28dd3be ("block: add a disk_has_partscan helper") Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/linux-block/ZhQJf8mzq_wipkBH@gardel-login/ Link: https://lore.kernel.org/r/20240502130033.1958492-3-hch@lst.de [axboe: add links and commit message from Keith] Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
show more ...
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Revision tags: v6.6.35, v6.6.34, v6.6.33, v6.6.32, v6.6.31, v6.6.30 |
|
#
3ffef551 |
| 02-May-2024 |
Christoph Hellwig <hch@lst.de> |
block: add a partscan sysfs attribute for disks
commit a4217c6740dc64a3eb6815868a9260825e8c68c6 upstream.
Userspace had been unknowingly relying on a non-stable interface of kernel internals to det
block: add a partscan sysfs attribute for disks
commit a4217c6740dc64a3eb6815868a9260825e8c68c6 upstream.
Userspace had been unknowingly relying on a non-stable interface of kernel internals to determine if partition scanning is enabled for a given disk. Provide a stable interface for this purpose instead.
Cc: stable@vger.kernel.org # 6.3+ Depends-on: 140ce28dd3be ("block: add a disk_has_partscan helper") Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/linux-block/ZhQJf8mzq_wipkBH@gardel-login/ Link: https://lore.kernel.org/r/20240502130033.1958492-3-hch@lst.de [axboe: add links and commit message from Keith] Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
show more ...
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Revision tags: v6.6.35, v6.6.34, v6.6.33, v6.6.32, v6.6.31, v6.6.30 |
|
#
3ffef551 |
| 02-May-2024 |
Christoph Hellwig <hch@lst.de> |
block: add a partscan sysfs attribute for disks
commit a4217c6740dc64a3eb6815868a9260825e8c68c6 upstream.
Userspace had been unknowingly relying on a non-stable interface of kernel internals to det
block: add a partscan sysfs attribute for disks
commit a4217c6740dc64a3eb6815868a9260825e8c68c6 upstream.
Userspace had been unknowingly relying on a non-stable interface of kernel internals to determine if partition scanning is enabled for a given disk. Provide a stable interface for this purpose instead.
Cc: stable@vger.kernel.org # 6.3+ Depends-on: 140ce28dd3be ("block: add a disk_has_partscan helper") Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/linux-block/ZhQJf8mzq_wipkBH@gardel-login/ Link: https://lore.kernel.org/r/20240502130033.1958492-3-hch@lst.de [axboe: add links and commit message from Keith] Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
show more ...
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Revision tags: v6.6.35, v6.6.34, v6.6.33, v6.6.32, v6.6.31, v6.6.30 |
|
#
3ffef551 |
| 02-May-2024 |
Christoph Hellwig <hch@lst.de> |
block: add a partscan sysfs attribute for disks
commit a4217c6740dc64a3eb6815868a9260825e8c68c6 upstream.
Userspace had been unknowingly relying on a non-stable interface of kernel internals to det
block: add a partscan sysfs attribute for disks
commit a4217c6740dc64a3eb6815868a9260825e8c68c6 upstream.
Userspace had been unknowingly relying on a non-stable interface of kernel internals to determine if partition scanning is enabled for a given disk. Provide a stable interface for this purpose instead.
Cc: stable@vger.kernel.org # 6.3+ Depends-on: 140ce28dd3be ("block: add a disk_has_partscan helper") Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/linux-block/ZhQJf8mzq_wipkBH@gardel-login/ Link: https://lore.kernel.org/r/20240502130033.1958492-3-hch@lst.de [axboe: add links and commit message from Keith] Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
show more ...
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Revision tags: v6.6.35, v6.6.34, v6.6.33, v6.6.32, v6.6.31, v6.6.30 |
|
#
3ffef551 |
| 02-May-2024 |
Christoph Hellwig <hch@lst.de> |
block: add a partscan sysfs attribute for disks
commit a4217c6740dc64a3eb6815868a9260825e8c68c6 upstream.
Userspace had been unknowingly relying on a non-stable interface of kernel internals to det
block: add a partscan sysfs attribute for disks
commit a4217c6740dc64a3eb6815868a9260825e8c68c6 upstream.
Userspace had been unknowingly relying on a non-stable interface of kernel internals to determine if partition scanning is enabled for a given disk. Provide a stable interface for this purpose instead.
Cc: stable@vger.kernel.org # 6.3+ Depends-on: 140ce28dd3be ("block: add a disk_has_partscan helper") Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/linux-block/ZhQJf8mzq_wipkBH@gardel-login/ Link: https://lore.kernel.org/r/20240502130033.1958492-3-hch@lst.de [axboe: add links and commit message from Keith] Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
show more ...
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Revision tags: v6.6.35, v6.6.34, v6.6.33, v6.6.32, v6.6.31, v6.6.30 |
|
#
3ffef551 |
| 02-May-2024 |
Christoph Hellwig <hch@lst.de> |
block: add a partscan sysfs attribute for disks
commit a4217c6740dc64a3eb6815868a9260825e8c68c6 upstream.
Userspace had been unknowingly relying on a non-stable interface of kernel internals to det
block: add a partscan sysfs attribute for disks
commit a4217c6740dc64a3eb6815868a9260825e8c68c6 upstream.
Userspace had been unknowingly relying on a non-stable interface of kernel internals to determine if partition scanning is enabled for a given disk. Provide a stable interface for this purpose instead.
Cc: stable@vger.kernel.org # 6.3+ Depends-on: 140ce28dd3be ("block: add a disk_has_partscan helper") Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/linux-block/ZhQJf8mzq_wipkBH@gardel-login/ Link: https://lore.kernel.org/r/20240502130033.1958492-3-hch@lst.de [axboe: add links and commit message from Keith] Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
show more ...
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Revision tags: v6.6.29, v6.6.28, v6.6.27, v6.6.26, v6.6.25, v6.6.24, v6.6.23, v6.6.16, v6.6.15, v6.6.14, v6.6.13, v6.6.12, v6.6.11, v6.6.10, v6.6.9, v6.6.8, v6.6.7, v6.6.6, v6.6.5, v6.6.4, v6.6.3, v6.6.2, v6.5.11, v6.6.1, v6.5.10, v6.6, v6.5.9, v6.5.8, v6.5.7, v6.5.6, v6.5.5, v6.5.4, v6.5.3, v6.5.2, v6.1.51, v6.5.1, v6.1.50, v6.5, v6.1.49, v6.1.48, v6.1.46 |
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#
ebab9426 |
| 14-Aug-2023 |
Bjorn Helgaas <bhelgaas@google.com> |
Documentation/ABI: Fix typos
Fix typos in Documentation/ABI. The changes are in descriptions or comments where they shouldn't affect use of the ABIs.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.
Documentation/ABI: Fix typos
Fix typos in Documentation/ABI. The changes are in descriptions or comments where they shouldn't affect use of the ABIs.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Randy Dunlap <rdunlap@infradead.org> Link: https://lore.kernel.org/r/20230814212822.193684-2-helgaas@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Revision tags: v6.1.45, v6.1.44, v6.1.43, v6.1.42, v6.1.41, v6.1.40, v6.1.39, v6.1.38, v6.1.37, v6.1.36, v6.4, v6.1.35, v6.1.34, v6.1.33, v6.1.32, v6.1.31, v6.1.30, v6.1.29, v6.1.28, v6.1.27, v6.1.26, v6.3, v6.1.25, v6.1.24, v6.1.23, v6.1.22, v6.1.21 |
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#
54bdd67d |
| 20-Mar-2023 |
Keith Busch <kbusch@kernel.org> |
blk-mq: remove hybrid polling
io_uring provides the only way user space can poll completions, and that always sets BLK_POLL_NOSLEEP. This effectively makes hybrid polling dead code, so remove it and
blk-mq: remove hybrid polling
io_uring provides the only way user space can poll completions, and that always sets BLK_POLL_NOSLEEP. This effectively makes hybrid polling dead code, so remove it and everything supporting it.
Hybrid polling was effectively killed off with 9650b453a3d4b1, "block: ignore RWF_HIPRI hint for sync dio", but still potentially reachable through io_uring until d729cf9acb93119, "io_uring: don't sleep when polling for I/O", but hybrid polling probably should not have been reachable through that async interface from the beginning.
Fixes: 9650b453a3d4 ("block: ignore RWF_HIPRI hint for sync dio") Fixes: d729cf9acb93 ("io_uring: don't sleep when polling for I/O") Signed-off-by: Keith Busch <kbusch@kernel.org> Link: https://lore.kernel.org/r/20230320194926.3353144-1-kbusch@meta.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Revision tags: v6.1.20, v6.1.19, v6.1.18, v6.1.17, v6.1.16, v6.1.15 |
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e3306221 |
| 03-Mar-2023 |
Sagi Grimberg <sagi@grimberg.me> |
docs: sysfs-block: document hidden sysfs entry
/sys/block/<disk>/hidden is undocumented. Document it.
Signed-off-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com
docs: sysfs-block: document hidden sysfs entry
/sys/block/<disk>/hidden is undocumented. Document it.
Signed-off-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com> Link: https://lore.kernel.org/r/20230303084323.228098-1-sagi@grimberg.me Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Revision tags: v6.1.14, v6.1.13, v6.2, v6.1.12, v6.1.11, v6.1.10, v6.1.9, v6.1.8, v6.1.7, v6.1.6, v6.1.5, v6.0.19, v6.0.18, v6.1.4 |
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#
c9c77418 |
| 05-Jan-2023 |
Keith Busch <kbusch@kernel.org> |
block: save user max_sectors limit
The user can set the max_sectors limit to any valid value via sysfs /sys/block/<dev>/queue/max_sectors_kb attribute. If the device limits are ever rescanned, thoug
block: save user max_sectors limit
The user can set the max_sectors limit to any valid value via sysfs /sys/block/<dev>/queue/max_sectors_kb attribute. If the device limits are ever rescanned, though, the limit reverts back to the potentially artificially low BLK_DEF_MAX_SECTORS value.
Preserve the user's setting as the max_sectors limit as long as it's valid. The user can reset back to defaults by writing 0 to the sysfs file.
Signed-off-by: Keith Busch <kbusch@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Link: https://lore.kernel.org/r/20230105205146.3610282-3-kbusch@meta.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Revision tags: v6.1.3, v6.0.17, v6.1.2, v6.0.16, v6.1.1, v6.0.15, v6.0.14, v6.0.13, v6.1, v6.0.12, v6.0.11, v6.0.10, v5.15.80, v6.0.9, v5.15.79, v6.0.8, v5.15.78, v6.0.7, v5.15.77, v5.15.76, v6.0.6, v6.0.5, v5.15.75, v6.0.4, v6.0.3, v6.0.2, v5.15.74, v5.15.73, v6.0.1, v5.15.72, v6.0, v5.15.71, v5.15.70, v5.15.69, v5.15.68, v5.15.67, v5.15.66, v5.15.65, v5.15.64, v5.15.63, v5.15.62, v5.15.61, v5.15.60, v5.15.59, v5.19, v5.15.58, v5.15.57, v5.15.56, v5.15.55, v5.15.54, v5.15.53, v5.15.52, v5.15.51, v5.15.50, v5.15.49, v5.15.48, v5.15.47 |
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3850e13f |
| 10-Jun-2022 |
Keith Busch <kbusch@kernel.org> |
block: export dma_alignment attribute
User space may want to know how to align their buffers to avoid bouncing. Export the queue attribute.
Signed-off-by: Keith Busch <kbusch@kernel.org> Reviewed-b
block: export dma_alignment attribute
User space may want to know how to align their buffers to avoid bouncing. Export the queue attribute.
Signed-off-by: Keith Busch <kbusch@kernel.org> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20220610195830.3574005-4-kbusch@fb.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Revision tags: v5.15.46, v5.15.45, v5.15.44, v5.15.43, v5.15.42, v5.18, v5.15.41, v5.15.40, v5.15.39, v5.15.38, v5.15.37, v5.15.36, v5.15.35, v5.15.34, v5.15.33, v5.15.32, v5.15.31, v5.17, v5.15.30, v5.15.29, v5.15.28, v5.15.27, v5.15.26, v5.15.25, v5.15.24, v5.15.23, v5.15.22, v5.15.21, v5.15.20, v5.15.19, v5.15.18, v5.15.17 |
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20f01f16 |
| 24-Jan-2022 |
Eric Biggers <ebiggers@google.com> |
blk-crypto: show crypto capabilities in sysfs
Add sysfs files that expose the inline encryption capabilities of request queues:
/sys/block/$disk/queue/crypto/max_dun_bits /sys/block/$disk/queue/c
blk-crypto: show crypto capabilities in sysfs
Add sysfs files that expose the inline encryption capabilities of request queues:
/sys/block/$disk/queue/crypto/max_dun_bits /sys/block/$disk/queue/crypto/modes/$mode /sys/block/$disk/queue/crypto/num_keyslots
Userspace can use these new files to decide what encryption settings to use, or whether to use inline encryption at all. This also brings the crypto capabilities in line with the other queue properties, which are already discoverable via the queue directory in sysfs.
Design notes:
- Place the new files in a new subdirectory "crypto" to group them together and to avoid complicating the main "queue" directory. This also makes it possible to replace "crypto" with a symlink later if we ever make the blk_crypto_profiles into real kobjects (see below).
- It was necessary to define a new kobject that corresponds to the crypto subdirectory. For now, this kobject just contains a pointer to the blk_crypto_profile. Note that multiple queues (and hence multiple such kobjects) may refer to the same blk_crypto_profile.
An alternative design would more closely match the current kernel data structures: the blk_crypto_profile could be a kobject itself, located directly under the host controller device's kobject, while /sys/block/$disk/queue/crypto would be a symlink to it.
I decided not to do that for now because it would require a lot more changes, such as no longer embedding blk_crypto_profile in other structures, and also because I'm not sure we can rule out moving the crypto capabilities into 'struct queue_limits' in the future. (Even if multiple queues share the same crypto engine, maybe the supported data unit sizes could differ due to other queue properties.) It would also still be possible to switch to that design later without breaking userspace, by replacing the directory with a symlink.
- Use "max_dun_bits" instead of "max_dun_bytes". Currently, the kernel internally stores this value in bytes, but that's an implementation detail. It probably makes more sense to talk about this value in bits, and choosing bits is more future-proof.
- "modes" is a sub-subdirectory, since there may be multiple supported crypto modes, sysfs is supposed to have one value per file, and it makes sense to group all the mode files together.
- Each mode had to be named. The crypto API names like "xts(aes)" are not appropriate because they don't specify the key size. Therefore, I assigned new names. The exact names chosen are arbitrary, but they happen to match the names used in log messages in fs/crypto/.
- The "num_keyslots" file is a bit different from the others in that it is only useful to know for performance reasons. However, it's included as it can still be useful. For example, a user might not want to use inline encryption if there aren't very many keyslots.
Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Eric Biggers <ebiggers@google.com> Link: https://lore.kernel.org/r/20220124215938.2769-4-ebiggers@kernel.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Revision tags: v5.4.173, v5.15.16, v5.15.15, v5.16, v5.15.10, v5.15.9, v5.15.8 |
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8bc2f7c6 |
| 08-Dec-2021 |
Eric Biggers <ebiggers@google.com> |
docs: sysfs-block: document virt_boundary_mask
/sys/block/<disk>/queue/virt_boundary_mask is completely undocumented. Document it.
Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: E
docs: sysfs-block: document virt_boundary_mask
/sys/block/<disk>/queue/virt_boundary_mask is completely undocumented. Document it.
Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Eric Biggers <ebiggers@google.com> Link: https://lore.kernel.org/r/20211209003833.6396-7-ebiggers@kernel.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
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11630104 |
| 08-Dec-2021 |
Eric Biggers <ebiggers@google.com> |
docs: sysfs-block: document stable_writes
/sys/block/<disk>/queue/stable_writes is completely undocumented. Document it.
Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Eric Bigger
docs: sysfs-block: document stable_writes
/sys/block/<disk>/queue/stable_writes is completely undocumented. Document it.
Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Eric Biggers <ebiggers@google.com> Link: https://lore.kernel.org/r/20211209003833.6396-6-ebiggers@kernel.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
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849ab826 |
| 08-Dec-2021 |
Eric Biggers <ebiggers@google.com> |
docs: sysfs-block: fill in missing documentation from queue-sysfs.rst
sysfs documentation is supposed to go in Documentation/ABI/. However, /sys/block/<disk>/queue/* are documented in Documentation/
docs: sysfs-block: fill in missing documentation from queue-sysfs.rst
sysfs documentation is supposed to go in Documentation/ABI/. However, /sys/block/<disk>/queue/* are documented in Documentation/block/queue-sysfs.rst, and sometimes redundantly in Documentation/ABI/stable/sysfs-block too.
Let's consolidate this documentation into Documentation/ABI/.
Therefore, copy the relevant docs from queue-sysfs.rst into sysfs-block.
This primarily means adding the 25 missing files that were documented in queue-sysfs.rst only, as well as mentioning the RO/RW status of files.
Documentation/ABI/ requires "Date" and "Contact" fields. For the Date fields, I used the date of the commit which added support for each file. For the "Contact" fields, I used linux-block.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Eric Biggers <ebiggers@google.com> Link: https://lore.kernel.org/r/20211209003833.6396-5-ebiggers@kernel.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
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8b0551a7 |
| 08-Dec-2021 |
Eric Biggers <ebiggers@google.com> |
docs: sysfs-block: add contact for nomerges
The nomerges file was missing a "Contact" entry. Use linux-block.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Hannes Reine
docs: sysfs-block: add contact for nomerges
The nomerges file was missing a "Contact" entry. Use linux-block.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Eric Biggers <ebiggers@google.com> Link: https://lore.kernel.org/r/20211209003833.6396-4-ebiggers@kernel.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
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