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| author | Liav A <liavalb@gmail.com> | 2023-01-28 19:00:54 +0200 |
|---|---|---|
| committer | Andrew Kaster <andrewdkaster@gmail.com> | 2023-02-04 15:32:45 -0700 |
| commit | ed67a877a3998a968ebdec27cf210d2dbb6ca0da (patch) | |
| tree | 63a2e3bb5c52cdfde4cef42b66c4567d441a1b77 /Base/usr | |
| parent | fa637e29d2fb1c9d161e204e4e511529f795207d (diff) | |
| download | serenity-ed67a877a3998a968ebdec27cf210d2dbb6ca0da.zip | |
Kernel+SystemServer+Base: Introduce the RAMFS filesystem
This filesystem is based on the code of the long-lived TmpFS. It differs
from that filesystem in one keypoint - its root inode doesn't have a
sticky bit on it.
Therefore, we mount it on /dev, to ensure only root can modify files on
that directory. In addition to that, /tmp is mounted directly in the
SystemServer main (start) code, so it's no longer specified in the fstab
file. We ensure that /tmp has a sticky bit and has the value 0777 for
root directory permissions, which is certainly a special case when using
RAM-backed (and in general other) filesystems.
Because of these 2 changes, it's no longer needed to maintain the TmpFS
filesystem, hence it's removed (renamed to RAMFS), because the RAMFS
represents the purpose of this filesystem in a much better way - it
relies on being backed by RAM "storage", and therefore it's easy to
conclude it's temporary and volatile, so its content is gone on either
system shutdown or unmounting of the filesystem.
Diffstat (limited to 'Base/usr')
| -rw-r--r-- | Base/usr/share/man/man2/mount.md | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Base/usr/share/man/man2/mount.md b/Base/usr/share/man/man2/mount.md index bb6e5a72c4..ccbb66c520 100644 --- a/Base/usr/share/man/man2/mount.md +++ b/Base/usr/share/man/man2/mount.md @@ -20,7 +20,7 @@ over `target`. * `Ext2FS` (or `ext2`): The ext2 filesystem. * `ProcFS` (or `proc`): The process pseudo-filesystem (normally mounted at `/proc`). * `DevPtsFS` (or `devpts`): The pseudoterminal pseudo-filesystem (normally mounted at `/dev/pts`). -* `TmpFS` (or `tmp`): A non-persistent filesystem that stores all its data in RAM. An instance of this filesystem is normally mounted at `/tmp`. +* `RAMFS` (or `ram`): A non-persistent filesystem that stores all its data in RAM. An instance of this filesystem is normally mounted at `/tmp`. * `Plan9FS` (or `9p`): A remote filesystem served over the 9P protocol. For Ext2FS, `source_fd` must refer to an open file descriptor to a file |