函数源码

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source File:mm\maccess.c Create Date:2022-07-27 15:30:30
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long __probe_user_read(void *dst, const void __user *src, size_t size)
{
    long ret = -EFAULT;
    mm_segment_t old_fs = get_fs();
 
    set_fs(USER_DS);
    if (access_ok(src, size))
        ret = probe_read_common(dst, src, size);
    set_fs(old_fs);
 
    return ret;
}