mirror of
https://github.com/morgan9e/systemd
synced 2026-04-14 16:37:19 +09:00
2988bba60f
Submounts will always be located further in the mountinfo file, so when we're unmounting, iterating backwards is likely to be more efficient than iterating forwards. It'll also reduce the amount of EBUSY debug logging we'll get since we'll stop trying to unmount parent mounts with submounts which will always fail with EBUSY.
74 lines
2.7 KiB
C
74 lines
2.7 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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#pragma once
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/* This needs to be after sys/mount.h */
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#include <libmount.h> /* IWYU pragma: export */
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#include "dlfcn-util.h"
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#include "shared-forward.h"
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extern DLSYM_PROTOTYPE(mnt_free_iter);
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extern DLSYM_PROTOTYPE(mnt_free_table);
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extern DLSYM_PROTOTYPE(mnt_fs_get_fs_options);
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extern DLSYM_PROTOTYPE(mnt_fs_get_fstype);
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extern DLSYM_PROTOTYPE(mnt_fs_get_id);
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extern DLSYM_PROTOTYPE(mnt_fs_get_option);
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extern DLSYM_PROTOTYPE(mnt_fs_get_options);
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extern DLSYM_PROTOTYPE(mnt_fs_get_passno);
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extern DLSYM_PROTOTYPE(mnt_fs_get_propagation);
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extern DLSYM_PROTOTYPE(mnt_fs_get_source);
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extern DLSYM_PROTOTYPE(mnt_fs_get_target);
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extern DLSYM_PROTOTYPE(mnt_fs_get_vfs_options);
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extern DLSYM_PROTOTYPE(mnt_get_builtin_optmap);
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extern DLSYM_PROTOTYPE(mnt_init_debug);
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extern DLSYM_PROTOTYPE(mnt_monitor_enable_kernel);
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extern DLSYM_PROTOTYPE(mnt_monitor_enable_userspace);
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extern DLSYM_PROTOTYPE(mnt_monitor_get_fd);
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extern DLSYM_PROTOTYPE(mnt_monitor_next_change);
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extern DLSYM_PROTOTYPE(mnt_new_iter);
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extern DLSYM_PROTOTYPE(mnt_new_monitor);
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extern DLSYM_PROTOTYPE(mnt_new_table);
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extern DLSYM_PROTOTYPE(mnt_optstr_get_flags);
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extern DLSYM_PROTOTYPE(mnt_table_find_devno);
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extern DLSYM_PROTOTYPE(mnt_table_find_target);
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extern DLSYM_PROTOTYPE(mnt_table_next_child_fs);
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extern DLSYM_PROTOTYPE(mnt_table_next_fs);
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extern DLSYM_PROTOTYPE(mnt_table_parse_file);
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extern DLSYM_PROTOTYPE(mnt_table_parse_mtab);
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extern DLSYM_PROTOTYPE(mnt_table_parse_stream);
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extern DLSYM_PROTOTYPE(mnt_table_parse_swaps);
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extern DLSYM_PROTOTYPE(mnt_unref_monitor);
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int dlopen_libmount(void);
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DEFINE_TRIVIAL_CLEANUP_FUNC_FULL_RENAME(struct libmnt_table*, sym_mnt_free_table, mnt_free_tablep, NULL);
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DEFINE_TRIVIAL_CLEANUP_FUNC_FULL_RENAME(struct libmnt_iter*, sym_mnt_free_iter, mnt_free_iterp, NULL);
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int libmount_parse_full(
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const char *path,
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FILE *source,
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int direction,
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struct libmnt_table **ret_table,
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struct libmnt_iter **ret_iter);
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static inline int libmount_parse_mountinfo(
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FILE *source,
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struct libmnt_table **ret_table,
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struct libmnt_iter **ret_iter) {
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return libmount_parse_full("/proc/self/mountinfo", source, MNT_ITER_FORWARD, ret_table, ret_iter);
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}
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static inline int libmount_parse_with_utab(
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struct libmnt_table **ret_table,
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struct libmnt_iter **ret_iter) {
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return libmount_parse_full(NULL, NULL, MNT_ITER_FORWARD, ret_table, ret_iter);
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}
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int libmount_parse_fstab(struct libmnt_table **ret_table, struct libmnt_iter **ret_iter);
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int libmount_is_leaf(
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struct libmnt_table *table,
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struct libmnt_fs *fs);
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