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Multithreaded locking for mmap().

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4654 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
pbrook 2008-06-02 16:16:42 +00:00
parent 30813cea9b
commit c8a706fe62
3 changed files with 98 additions and 28 deletions
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6
linux-user/qemu.h
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@ -233,6 +233,8 @@ abi_long target_mremap(abi_ulong old_addr, abi_ulong old_size,
abi_ulong new_addr);
int target_msync(abi_ulong start, abi_ulong len, int flags);
extern unsigned long last_brk;
void mmap_lock(void);
void mmap_unlock(void);
/* user access */
@ -423,4 +425,8 @@ static inline void *lock_user_string(abi_ulong guest_addr)
#define unlock_user_struct(host_ptr, guest_addr, copy) \
unlock_user(host_ptr, guest_addr, (copy) ? sizeof(*host_ptr) : 0)
#if defined(USE_NPTL)
#include <pthread.h>
#endif
#endif /* QEMU_H */