| /**************************************************************************** |
| **************************************************************************** |
| *** |
| *** This header was automatically generated from a Linux kernel header |
| *** of the same name, to make information necessary for userspace to |
| *** call into the kernel available to libc. It contains only constants, |
| *** structures, and macros generated from the original header, and thus, |
| *** contains no copyrightable information. |
| *** |
| *** To edit the content of this header, modify the corresponding |
| *** source file (e.g. under external/kernel-headers/original/) then |
| *** run bionic/libc/kernel/tools/update_all.py |
| *** |
| *** Any manual change here will be lost the next time this script will |
| *** be run. You've been warned! |
| *** |
| **************************************************************************** |
| ****************************************************************************/ |
| #ifndef __LINUX_SEQLOCK_H |
| #define __LINUX_SEQLOCK_H |
| #include <linux/spinlock.h> |
| #include <linux/preempt.h> |
| /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ |
| typedef struct { |
| unsigned sequence; |
| spinlock_t lock; |
| } seqlock_t; |
| /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ |
| #define __SEQLOCK_UNLOCKED(lockname) { 0, __SPIN_LOCK_UNLOCKED(lockname) } |
| #define SEQLOCK_UNLOCKED __SEQLOCK_UNLOCKED(old_style_seqlock_init) |
| #define seqlock_init(x) do { *(x) = (seqlock_t) __SEQLOCK_UNLOCKED(x); } while (0) |
| #define DEFINE_SEQLOCK(x) seqlock_t x = __SEQLOCK_UNLOCKED(x) |
| /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ |
| typedef struct seqcount { |
| unsigned sequence; |
| } seqcount_t; |
| #define SEQCNT_ZERO { 0 } |
| /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ |
| #define seqcount_init(x) do { *(x) = (seqcount_t) SEQCNT_ZERO; } while (0) |
| #define write_seqlock_irqsave(lock, flags) do { local_irq_save(flags); write_seqlock(lock); } while (0) |
| #define write_seqlock_irq(lock) do { local_irq_disable(); write_seqlock(lock); } while (0) |
| #define write_seqlock_bh(lock) do { local_bh_disable(); write_seqlock(lock); } while (0) |
| /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ |
| #define write_sequnlock_irqrestore(lock, flags) do { write_sequnlock(lock); local_irq_restore(flags); } while(0) |
| #define write_sequnlock_irq(lock) do { write_sequnlock(lock); local_irq_enable(); } while(0) |
| #define write_sequnlock_bh(lock) do { write_sequnlock(lock); local_bh_enable(); } while(0) |
| #define read_seqbegin_irqsave(lock, flags) ({ local_irq_save(flags); read_seqbegin(lock); }) |
| /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ |
| #define read_seqretry_irqrestore(lock, iv, flags) ({ int ret = read_seqretry(lock, iv); local_irq_restore(flags); ret; }) |
| #endif |
