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4824735918
There are file attributes inherited from previous ext2 SETFLAGS/GETFLAGS and later from XFLAGS interfaces, now commonly found under the 'fileattr' API. This corresponds to the individual inode bits and that's part of the on-disk format, so this is suitable for the protocol. The other interfaces contain a lot of cruft or bits that btrfs does not support yet. Currently the value is u64 and matches btrfs_inode_item. Not all the bits can be set by ioctls (like NODATASUM or READONLY), but we can send them over the protocol and leave it up to the receiving side what and how to apply. As some of the flags, eg. IMMUTABLE, can prevent any further changes, the receiving side needs to understand that and apply the changes in the right order, or possibly with some intermediate steps. This should be easier, future proof and simpler on the protocol layer than implementing in kernel. Reviewed-by: Omar Sandoval <osandov@fb.com> Signed-off-by: David Sterba <dsterba@suse.com> |
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| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
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.