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bf109c6404
FUSE servers can indicate crossmount points by setting FUSE_ATTR_SUBMOUNT in fuse_attr.flags. The inode will then be marked as S_AUTOMOUNT, and the .d_automount implementation creates a new submount at that location, so that the submount gets a distinct st_dev value. Note that all submounts get a distinct superblock and a distinct st_dev value, so for virtio-fs, even if the same filesystem is mounted more than once on the host, none of its mount points will have the same st_dev. We need distinct superblocks because the superblock points to the root node, but the different host mounts may show different trees (e.g. due to submounts in some of them, but not in others). Right now, this behavior is only enabled when fuse_conn.auto_submounts is set, which is the case only for virtio-fs. Signed-off-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Miklos Szeredi <mszeredi@redhat.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 | ||
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| 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.