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Groups > linux.kernel > #1463374
| From | Dan Williams <dan.j.williams@intel.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 0/7] dax: unified host inode for device-dax mappings |
| Date | 2016-08-16 05:30 +0200 |
| Message-ID | <s6DeF-69Q-5@gated-at.bofh.it> (permalink) |
| Organization | linux.* mail to news gateway |
There are two scenarios where we need mappings of a /dev/dax device to
share a single host inode, invalidating mappings at device shutdown, and
coordinating resize of an actively mapped device. This series addresses
the unmap-on-shutdown case and includes reworks, like the cdev api
conversion, to prepare for a dynamic resize / allocation capability.
Recall that device-DAX, introduced in v4.7 [1], is a mechanism to
provide deterministic mapping behavior for performance- /
feature-differentiated memory ranges.
[1]: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ab68f2622136
---
Dan Williams (7):
dax: cleanup needlessly global symbol warnings
dax: reorder dax_fops function definitions
dax: rename fops from dax_dev_ to dax_
dax: embed a struct device in dax_dev
dax: convert to the cdev api
dax: define a unified inode/address_space for device-dax mappings
dax: unmap/truncate on device shutdown
drivers/dax/Kconfig | 5
drivers/dax/dax.c | 555 ++++++++++++++++++++++++++------------------
drivers/dax/pmem.c | 2
fs/char_dev.c | 1
include/uapi/linux/magic.h | 1
5 files changed, 337 insertions(+), 227 deletions(-)
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[PATCH 0/7] dax: unified host inode for device-dax mappings Dan Williams <dan.j.williams@intel.com> - 2016-08-16 05:30 +0200 [PATCH 7/7] dax: unmap/truncate on device shutdown Dan Williams <dan.j.williams@intel.com> - 2016-08-16 05:30 +0200 [PATCH 4/7] dax: embed a struct device in dax_dev Dan Williams <dan.j.williams@intel.com> - 2016-08-16 05:30 +0200 [PATCH 5/7] dax: convert to the cdev api Dan Williams <dan.j.williams@intel.com> - 2016-08-16 05:30 +0200 [PATCH 1/7] dax: cleanup needlessly global symbol warnings Dan Williams <dan.j.williams@intel.com> - 2016-08-16 05:30 +0200 [PATCH 3/7] dax: rename fops from dax_dev_ to dax_ Dan Williams <dan.j.williams@intel.com> - 2016-08-16 05:30 +0200 [PATCH 2/7] dax: reorder dax_fops function definitions Dan Williams <dan.j.williams@intel.com> - 2016-08-16 05:30 +0200 [PATCH 6/7] dax: define a unified inode/address_space for device-dax mappings Dan Williams <dan.j.williams@intel.com> - 2016-08-16 05:30 +0200
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