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7cf035cc83
- Teach XFS to ask the VFS to drop an inode if the administrator changes
the FS_XFLAG_DAX inode flag such that the S_DAX state would change.
This can result in files changing access modes without requiring an
unmount cycle.
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Merge tag 'vfs-5.8-merge-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull DAX updates part three from Darrick Wong:
"Now that the xfs changes have landed, this third piece changes the
FS_XFLAG_DAX ioctl code in xfs to request that the inode be reloaded
after the last program closes the file, if doing so would make a S_DAX
change happen. The goal here is to make dax access mode switching
quicker when possible.
Summary:
- Teach XFS to ask the VFS to drop an inode if the administrator
changes the FS_XFLAG_DAX inode flag such that the S_DAX state would
change. This can result in files changing access modes without
requiring an unmount cycle"
* tag 'vfs-5.8-merge-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
fs/xfs: Update xfs_ioctl_setattr_dax_invalidate()
fs/xfs: Combine xfs_diflags_to_linux() and xfs_diflags_to_iflags()
fs/xfs: Create function xfs_inode_should_enable_dax()
fs/xfs: Make DAX mount option a tri-state
fs/xfs: Change XFS_MOUNT_DAX to XFS_MOUNT_DAX_ALWAYS
fs/xfs: Remove unnecessary initialization of i_rwsem
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.