2024 Struct lock_class

Struct lock_class_key

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August undefined, 2024

WebThe minimized testcase: --cut here-- #define SB_FREEZE_COMPLETE 4 struct lock_class_key { }; struct file_system_type { struct lock_class_key s_writers_key [ … Webpointer to a string for the name of this class. struct lock_class_key *key. the lock_class_key for this class; used by mutex lock debugging. Description. This is used to create a struct …

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WebJun 20, 2012 · public class DynamicKeyLock implements Lock { private final static ConcurrentHashMap locksMap = new ConcurrentHashMap (); private final T key; public DynamicKeyLock (T lockKey) { this.key = lockKey; } private static class LockAndCounter { private final Lock lock = new ReentrantLock (); private final AtomicInteger counter = new … Webstruct fsl_mc_device_id ¶ MC object device identifier Definition: struct fsl_mc_device_id { __u16 vendor; const char obj_type [16]; }; Members vendor vendor ID obj_type MC object type Description Type of entries in the “device Id” table for MC object devices supported by a MC object device driver. The last entry of the table has vendor set to 0x0 scotsman ice machine scn60

[PATCH] driver core: bus: move documentation for …

Webs_lock_key, s_umount_key: lockdep-specific The mount () method has the following arguments: struct file_system_type *fs_type describes the filesystem, partly initialized by the specific filesystem code int flags mount flags const char *dev_name the device name we are mounting. void *data WebApr 6, 2024 · A struct_declaration consists of an optional set of attributes ( §21 ), followed by an optional set of struct_modifier s ( §15.2.2 ), followed by an optional partial modifier ( §14.2.7 ), followed by the keyword struct and an identifier that names the struct, followed by an optional type_parameter_list specification ( §14.2.3 ), followed by an … WebThe minimized testcase: --cut here-- #define SB_FREEZE_COMPLETE 4 struct lock_class_key { }; struct file_system_type { struct lock_class_key s_writers_key [ (SB_FREEZE_COMPLETE - 1)]; struct lock_class_key i_lock_key; }; void foo (struct file_system_type *type) { for (int i = 0; i s_writers_key [i]); } --cut here-- gcc -O2 -Wall: super-i.c: In … premio chicken sausage

Linux内核API之class_create与class_destroy - CSDN博客

[PATCH] driver core: bus: move lock_class_key into dynamic structure

WebStruct kernel:: sync:: LockClassKey source · [−] #[repr(transparent)] pub struct LockClassKey(_); Expand description. Represents a lockdep class. It’s a wrapper around … Webstruct lock_class_key *lock_key, const char *lock_name); /* * Wrapper for regmap_init macros to include a unique lockdep key and name * for each call. No-op if … scotsman ice machine sccg50WebLocks all the objects passed as arguments, blocking the calling thread if necessary. The function locks the objects using an unspecified sequence of calls to their members lock, … premio chinese brand links

"WebApr 2, 2024 · Now that the class code is cleaned up to not modify the class pointer. registered with it, change class_register () to take a const * to allow. the structure to be … " - Struct lock_class_key

Struct lock_class_key

Linux kernel macro DEVICE_ATTR use - Code World

WebIn commit 37e98d9bedb5 ("driver core: bus: move lock_class_key into dynamic structure"), the lock_key variable moved out of struct bus_type and into struct subsys_private, yet the … WebOct 24, 2024 · Locks the given Lockable objects lock1, lock2, ..., lockn using a deadlock avoidance algorithm to avoid deadlock. The objects are locked by an unspecified series of …

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WebApr 11, 2024 · > static struct lock_class_key __key; \ > \ > - __raw_spin_lock_init (spinlock_check (lock), \ > - #lock, &__key, LD_WAIT_CONFIG); \ > + spin_lock_init_with_key (lock, #lock, &__key); \ > } while (0) Peter, the code above is just factoring out spin lock init when lockdep is enabled to take a lock class key. Would you be able to review it? WebFor example a lock in the inode struct is one class, while each inode has its own instantiation of that lock class. The validator tracks the ‘usage state’ of lock-classes, and it tracks the dependencies between different lock-classes. Lock usage indicates how a lock is used with regard to its IRQ contexts, while lock dependency can be ...

WebApr 12, 2024 · > > + struct lock_class_key *key) > > + { > > + __raw_spin_lock_init (spinlock_check (lock), name, key, LD_WAIT_CONFIG); > > +} > > + > > # define spin_lock_init (lock) \ > > do { \ > > static struct lock_class_key __key; \ > > \ > > - __raw_spin_lock_init (spinlock_check (lock), \ > > - #lock, &__key, LD_WAIT_CONFIG); \ WebLockdep: add lockdep_set_class_and_subclass() and lockdep_set_subclass() This annotation makes it possible to assign a subclass on lock init. annotation is meant to …

Webthe lock_class_key for this class; used by mutex lock debugging DESCRIPTION ¶ This is used to create a struct class pointer that can then be used in calls to device_create. … Web* Don't use any locking mechanisms.* @lock: Optional lock callback (overrides regmap's default lock* function, based on spinlock or mutex).* @unlock: As above for unlocking.* @lock_arg: this field is passed as the only argument of lock/unlock* functions (ignored in case regular lock/unlock functions* are not overridden).* @reg_read: Optional …

WebJan 25, 2024 · You just pass a handle to an open registry key (in this example, the HKEY_CURRENT_USER predefined key), a string containing the sub key, and the value name. On success, the DWORD value is returned to the caller. On the other hand, on error, a custom exception of type RegistryError is thrown.

Web第四个参数是struct lock_class_key类型的变量，用于设定定时器的自旋锁的类型，在此测试程序中传入的是NULL，用于设定自旋锁为打开状态。 init_timer_key返回参数说明此函数的返回值是void型的变量，即函数不返回任何结果。 init_timer_key实例解析编写测试文件：init_timer_key.c 头文件引用及全局变量声明： #include … scotsman ice machines commercial for saleWebStruct kernel:: sync:: LockClassKey source · [−] #[repr(transparent)] pub struct LockClassKey(_); Expand description. Represents a lockdep class. It’s a wrapper around C’s lock_class_key. Implementations. source impl LockClassKey. source pub const fn new() -> Self. Creates a new lock class key. Trait Implementations. source impl Sync for ... scotsman ice machine service techWebApr 28, 2024 · 本文介绍linux中class_create和class_register的相关使用方法 1 class结构体介绍内核中定义了struct class结构体，顾名思义，一个struct class结构体类型变量对应一个类，内核同时提供了class_create(…)函数，可以用它来创建一个类，这个类存放于sysfs下面，一旦创建好了这个类，再调用device_create(… premio city of industryWeb*PATCH] driver core: bus: move lock_class_key into dynamic structure @ 2024-02-01 8:33 Greg Kroah-Hartman 2024-02-01 18:59 ` Rafael J. Wysocki 0 siblings, 1 reply; 3+ messages in thread From: Greg Kroah-Hartman @ 2024-02-01 8:33 UTC (permalink / raw) To: linux-kernel; +Cc: Greg Kroah-Hartman, Rafael J. Wysocki Move the lock_class_key structure … premio computer shopWebs_lock_key, s_umount_key: lockdep-specific. The mount() method has the following arguments: struct file_system_type *fs_type. describes the filesystem, partly initialized by … scotsman ice machine serial numberWebAs of kernel 2.6.22, the following members are defined: struct super_operations { struct inode * (*alloc_inode) (struct super_block *sb); void (*destroy_inode) (struct inode *); void (*dirty_inode) (struct inode *, int flags); int (*write_inode) (struct inode *, int); void (*drop_inode) (struct inode *); void (*delete_inode) (struct inode *); … premio computer speakersWebint __init mydevice_init(void) { int ret; struct device * mydevice; major = register_chrdev(0, " mydevice ", & myfops); if (major < 0) { ret = major; return ret; } myclass = … premio cat food