errno.h

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#ifndef __KERNEL_ERRNO_H__
#define __KERNEL_ERRNO_H__
 
#include <errno.h>
 
#define ERESTARTSYS 512 
/* The kernel negates its error number, POSIX leaves it in errno */
static inline long set_errno(long retval)
{
    if (retval < 0) {
        errno = -retval;
        return -1;
    }
 
    return retval;
}
 
#endif