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System | : | Linux MiraNet 3.0.0-14-generic-pae #23-Ubuntu SMP Mon Nov 21 22:07:10 UTC 2011 i686 |
Software | : | Apache. PHP/5.3.6-13ubuntu3.10 |
ID | : | uid=65534(nobody) gid=65534(nogroup) groups=65534(nogroup)
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Safe Mode | : | OFF |
Open_Basedir | : | OFF |
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MySQL: ON MSSQL: OFF Oracle: OFF PostgreSQL: OFF Curl: OFF Sockets: ON Fetch: OFF Wget: ON Perl: ON |
Disabled Functions: pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,
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/
usr/
src/
linux-headers-3.0.0-14/
include/
asm-generic/
- drwxr-xr-x
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Viewing file: cmpxchg-local.h (1.36 KB) -rw-r--r--Select action/file-type:  ( +) |  ( +) |  ( +) | Code ( +) | Session ( +) |  ( +) | SDB ( +) |  ( +) |  ( +) |  ( +) |  ( +) |  ( +) |
#ifndef __ASM_GENERIC_CMPXCHG_LOCAL_H #define __ASM_GENERIC_CMPXCHG_LOCAL_H
#include <linux/types.h> #include <linux/irqflags.h>
extern unsigned long wrong_size_cmpxchg(volatile void *ptr);
/* * Generic version of __cmpxchg_local (disables interrupts). Takes an unsigned * long parameter, supporting various types of architectures. */ static inline unsigned long __cmpxchg_local_generic(volatile void *ptr, unsigned long old, unsigned long new, int size) { unsigned long flags, prev;
/* * Sanity checking, compile-time. */ if (size == 8 && sizeof(unsigned long) != 8) wrong_size_cmpxchg(ptr);
local_irq_save(flags); switch (size) { case 1: prev = *(u8 *)ptr; if (prev == old) *(u8 *)ptr = (u8)new; break; case 2: prev = *(u16 *)ptr; if (prev == old) *(u16 *)ptr = (u16)new; break; case 4: prev = *(u32 *)ptr; if (prev == old) *(u32 *)ptr = (u32)new; break; case 8: prev = *(u64 *)ptr; if (prev == old) *(u64 *)ptr = (u64)new; break; default: wrong_size_cmpxchg(ptr); } local_irq_restore(flags); return prev; }
/* * Generic version of __cmpxchg64_local. Takes an u64 parameter. */ static inline u64 __cmpxchg64_local_generic(volatile void *ptr, u64 old, u64 new) { u64 prev; unsigned long flags;
local_irq_save(flags); prev = *(u64 *)ptr; if (prev == old) *(u64 *)ptr = new; local_irq_restore(flags); return prev; }
#endif
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