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authorLinus Torvalds <torvalds@linux-foundation.org>2020-06-03 05:45:12 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2020-06-03 05:45:12 +0300
commit96ed320d527eb071389f69cbd6772440805af7d7 (patch)
treed6ddd534c262fe4adcb1a6e23427317a105dbd93 /include/linux/vmalloc.h
parent16d91548d1057691979de4686693f0ff92f46000 (diff)
parent83d9088659e8f113741bb197324bd9554d159657 (diff)
downloadlinux-96ed320d527eb071389f69cbd6772440805af7d7.tar.xz
Merge tag 'vfs-5.8-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull DAX updates part one from Darrick Wong: "After many years of LKML-wrangling about how to enable programs to query and influence the file data access mode (DAX) when a filesystem resides on storage devices such as persistent memory, Ira Weiny has emerged with a proposed set of standard behaviors that has not been shot down by anyone! We're more or less standardizing on the current XFS behavior and adapting ext4 to do the same. This is the first of a handful pull requests that will make ext4 and XFS present a consistent interface for user programs that care about DAX. We add a statx attribute that programs can check to see if DAX is enabled on a particular file. Then, we update the DAX documentation to spell out the user-visible behaviors that filesystems will guarantee (until the next storage industry shakeup). The on-disk inode flag has been in XFS for a few years now. Summary: - Clean up io_is_direct. - Add a new statx flag to indicate when file data access is being done via DAX (as opposed to the page cache). - Update the documentation for how system administrators and application programmers can take advantage of the (still experimental DAX) feature" Link: https://lore.kernel.org/lkml/20200505002016.1085071-1-ira.weiny@intel.com/ * tag 'vfs-5.8-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: Documentation/dax: Update Usage section fs/stat: Define DAX statx attribute fs: Remove unneeded IS_DAX() check in io_is_direct()
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