6b000af4f2
https://tools.ietf.org/html/draft-knodel-terminology-02 https://lwn.net/Articles/823224/ This gets rid of most but not occasions of these loaded terms: 1. scsi_id and friends are something that is supposed to be removed from our tree (see #7594) 2. The test suite defines an API used by the ubuntu CI. We can remove this too later, but this needs to be done in sync with the ubuntu CI. 3. In some cases the terms are part of APIs we call or where we expose concepts the kernel names the way it names them. (In particular all remaining uses of the word "slave" in our codebase are like this, it's used by the POSIX PTY layer, by the network subsystem, the mount API and the block device subsystem). Getting rid of the term in these contexts would mean doing some major fixes of the kernel ABI first. Regarding the replacements: when whitelist/blacklist is used as noun we replace with with allow list/deny list, and when used as verb with allow-list/deny-list.
56 lines
2.5 KiB
C
56 lines
2.5 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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#pragma once
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#include <mntent.h>
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#include <stdio.h>
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#include "macro.h"
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/* 4MB for contents of regular files, 64k inodes for directories, symbolic links and device specials,
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using large storage array systems as a baseline */
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#define TMPFS_LIMITS_DEV ",size=4m,nr_inodes=64k"
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/* Very little, if any use expected */
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#define TMPFS_LIMITS_EMPTY_OR_ALMOST ",size=4m,nr_inodes=1k"
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#define TMPFS_LIMITS_SYS TMPFS_LIMITS_EMPTY_OR_ALMOST
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#define TMPFS_LIMITS_SYS_FS_CGROUP TMPFS_LIMITS_EMPTY_OR_ALMOST
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/* On an extremely small device with only 256MB of RAM, 20% of RAM for /run should be enough for re-exec of
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PID1 because 16MB of free space is required. */
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#define TMPFS_LIMITS_RUN ",size=20%,nr_inodes=800k"
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/* 10% of RAM (using 16GB of RAM as a baseline) translates to 400k inodes (assuming 4k each) and 25%
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translates to 1M inodes */
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#define TMPFS_LIMITS_TMP ",size=10%,nr_inodes=400k"
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#define TMPFS_LIMITS_DEV_SHM TMPFS_LIMITS_TMP
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#define TMPFS_LIMITS_TEMPORARY_FS TMPFS_LIMITS_TMP
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/* More space for volatile root and /var */
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#define TMPFS_LIMITS_VAR ",size=25%,nr_inodes=1m"
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#define TMPFS_LIMITS_ROOTFS TMPFS_LIMITS_VAR
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#define TMPFS_LIMITS_VOLATILE_STATE TMPFS_LIMITS_VAR
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int repeat_unmount(const char *path, int flags);
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int umount_recursive(const char *target, int flags);
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int bind_remount_recursive(const char *prefix, unsigned long new_flags, unsigned long flags_mask, char **deny_list);
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int bind_remount_recursive_with_mountinfo(const char *prefix, unsigned long new_flags, unsigned long flags_mask, char **deny_list, FILE *proc_self_mountinfo);
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int bind_remount_one_with_mountinfo(const char *path, unsigned long new_flags, unsigned long flags_mask, FILE *proc_self_mountinfo);
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int mount_move_root(const char *path);
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DEFINE_TRIVIAL_CLEANUP_FUNC(FILE*, endmntent);
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#define _cleanup_endmntent_ _cleanup_(endmntentp)
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int mount_verbose(
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int error_log_level,
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const char *what,
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const char *where,
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const char *type,
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unsigned long flags,
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const char *options);
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int umount_verbose(const char *where);
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int mount_option_mangle(
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const char *options,
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unsigned long mount_flags,
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unsigned long *ret_mount_flags,
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char **ret_remaining_options);
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int mode_to_inaccessible_node(const char *runtime_dir, mode_t mode, char **dest);
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