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We enable idmapped mounts for bcachefs. Here, we just pass down the user_namespace argument from the VFS methods to the relevant helpers. The idmap test in bcachefs is as following: ``` 1. losetup /dev/loop1 bcachefs.img 2. ./bcachefs format /dev/loop1 3. mount -t bcachefs /dev/loop1 /mnt/bcachefs/ 4. ./mount-idmapped --map-mount b:0:1000:1 /mnt/bcachefs /mnt/idmapped1/ ll /mnt/bcachefs total 2 drwx------. 2 root root 0 Jun 14 14:10 lost+found -rw-r--r--. 1 root root 1945 Jun 14 14:12 profile ll /mnt/idmapped1/ total 2 drwx------. 2 1000 1000 0 Jun 14 14:10 lost+found -rw-r--r--. 1 1000 1000 1945 Jun 14 14:12 profile Signed-off-by: Hongbo Li <lihongbo22@huawei.com> Reviewed-by: Christian Brauner <brauner@kernel.org> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> |
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| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| rust | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .editorconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| .rustfmt.toml | ||
| 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 reStructuredText 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.