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authorLinus Torvalds <torvalds@linux-foundation.org>2020-06-03 05:48:41 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2020-06-03 05:48:41 +0300
commit8eeae5bae1239c030ba0b34cac97ebd5e7ec1886 (patch)
treebd846ba952f32ebf033887db5459afc92b2d293a /include/linux/kernel.h
parent96ed320d527eb071389f69cbd6772440805af7d7 (diff)
parent2c567af418e3f9380c2051aada58b4e5a4b5c2ad (diff)
downloadlinux-8eeae5bae1239c030ba0b34cac97ebd5e7ec1886.tar.xz
Merge tag 'vfs-5.8-merge-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull DAX updates part two from Darrick Wong: "This time around, we're hoisting the DONTCACHE flag from XFS into the VFS so that we can make the incore DAX mode changes become effective sooner. We can't change the file data access mode on a live inode because we don't have a safe way to change the file ops pointers. The incore state change becomes effective at inode loading time, which can happen if the inode is evicted. Therefore, we're making it so that filesystems can ask the VFS to evict the inode as soon as the last holder drops. The per-fs changes to make this call this will be in subsequent pull requests from Ted and myself. Summary: - Introduce DONTCACHE flags for dentries and inodes. This hint will cause the VFS to drop the associated objects immediately after the last put, so that we can change the file access mode (DAX or page cache) on the fly" * tag 'vfs-5.8-merge-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: fs: Introduce DCACHE_DONTCACHE fs: Lift XFS_IDONTCACHE to the VFS layer
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