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e6bb780d24
The last commit related to this was incomplete: "Implement lock-override options without locking type" This is further reworking and reduction of the locking.[ch] layer which handled all clustering, but is now only used for file locking. The "locking types" that this layer implemented were removed previously, leaving only the standard file locking. (Some cluster-related artifacts remain to be cleared out later.) Command options to override or modify locking behavior are reimplemented here without using the locking types. Also, deprecated locking_type values are recognized, and implemented as if one of the equivalent override options was set. Options that override file locking are: . --nolocking disables all file locking. . --readonly grants read lock requests without actually taking a file lock, and refuses write lock requests. . --ignorelockingfailure tries to set up file locks and uses them normally if possible. When not possible, it behaves like --readonly, but allows activation. . --sysinit is the same as ignorelockingfailure. . global/metadata_read_only acquires actual read file locks, and refuses write lock requests. (Some of these options could probably be deprecated because they were added as workarounds to various locking_type behaviors that are now deprecated.) The locking_type setting now has one valid value: 1 which refers to standard file locking. Configs that contain deprecated values are recognized and still work in largely the same way: . 0 disabled all locking, now implemented like --nolocking is set. Allow the nolocking option in all commands. . 1 is the normal file locking setting and is unchanged. . 2 was for external locking which was not used, and reverts to normal file locking. . 3 was for cluster/clvm. This reverts to normal file locking, and prints messages about lvmlockd. . 4 was equivalent to readonly, now implemented like --readonly is set. . 5 disabled all locking, now implemented like --nolocking is set.
91 lines
2.8 KiB
C
91 lines
2.8 KiB
C
/*
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* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
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* Copyright (C) 2004-2011 Red Hat, Inc. All rights reserved.
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*
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* This file is part of LVM2.
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*
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* This copyrighted material is made available to anyone wishing to use,
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* modify, copy, or redistribute it subject to the terms and conditions
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* of the GNU Lesser General Public License v.2.1.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _LVM_GLOBALS_H
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#define _LVM_GLOBALS_H
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#define VERBOSE_BASE_LEVEL _LOG_WARN
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#define SECURITY_LEVEL 0
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#define PV_MIN_SIZE_KB 512
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enum dev_ext_e;
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void init_verbose(int level);
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void init_silent(int silent);
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void init_test(int level);
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void init_md_filtering(int level);
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void init_internal_filtering(int level);
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void init_fwraid_filtering(int level);
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void init_pvmove(int level);
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void init_external_device_info_source(enum dev_ext_e src);
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void init_obtain_device_list_from_udev(int device_list_from_udev);
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void init_trust_cache(int trustcache);
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void init_debug(int level);
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void init_debug_classes_logged(int classes);
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void init_cmd_name(int status);
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void init_security_level(int level);
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void init_mirror_in_sync(int in_sync);
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void init_dmeventd_monitor(int reg);
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void init_disable_dmeventd_monitoring(int disable);
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void init_background_polling(int polling);
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void init_ignore_suspended_devices(int ignore);
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void init_ignore_lvm_mirrors(int scan);
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void init_error_message_produced(int produced);
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void init_is_static(unsigned value);
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void init_udev_checking(int checking);
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void init_dev_disable_after_error_count(int value);
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void init_pv_min_size(uint64_t sectors);
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void init_activation_checks(int checks);
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void init_retry_deactivation(int retry);
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void init_unknown_device_name(const char *name);
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void set_cmd_name(const char *cmd_name);
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const char *get_cmd_name(void);
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void set_sysfs_dir_path(const char *path);
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int test_mode(void);
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int md_filtering(void);
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int internal_filtering(void);
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int fwraid_filtering(void);
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int pvmove_mode(void);
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int obtain_device_list_from_udev(void);
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enum dev_ext_e external_device_info_source(void);
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int trust_cache(void);
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int verbose_level(void);
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int silent_mode(void);
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int debug_level(void);
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int debug_class_is_logged(int class);
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int security_level(void);
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int mirror_in_sync(void);
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int background_polling(void);
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int ignore_suspended_devices(void);
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int ignore_lvm_mirrors(void);
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const char *log_command_name(void);
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unsigned is_static(void);
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int udev_checking(void);
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const char *sysfs_dir_path(void);
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uint64_t pv_min_size(void);
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int activation_checks(void);
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int retry_deactivation(void);
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const char *unknown_device_name(void);
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#define DMEVENTD_MONITOR_IGNORE -1
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int dmeventd_monitor_mode(void);
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#define NO_DEV_ERROR_COUNT_LIMIT 0
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int dev_disable_after_error_count(void);
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#endif
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