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If the operation is not an update, if neither r/w nor r/o mode is explicitly requested, if the error code hints at the possibility of the media being read-only, and if the fallback is allowed, then we can try to automatically downgrade to the readonly mode. This is especially useful for auto-mounting of removable media that sometimes can happen to be write-protected. The fallback to r/o is not enabled by default. It can be requested on a per-mount basis with a new mount option, 'autoro'. Or it can be globally allowed by setting vfs.default_autoro. Reviewed by: cem, kib MFC after: 3 weeks Relnotes: yes Differential Revision: https://reviews.freebsd.org/D13361 |
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| .. | ||
| extern.h | ||
| getmntopts.3 | ||
| getmntopts.c | ||
| Makefile | ||
| Makefile.depend | ||
| mntopts.h | ||
| mount_fs.c | ||
| mount.8 | ||
| mount.c | ||
| pathnames.h | ||
| vfslist.c | ||