Function report |
Source Code:mm\mempolicy.c |
Create Date:2022-07-28 15:32:31 |
Last Modify:2020-03-17 22:28:11 | Copyright©Brick |
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Name:COMPAT_SYSCALL_DEFINE3
Proto:COMPAT_SYSCALL_DEFINE3(set_mempolicy, int, mode, compat_ulong_t __user *, nmask, compat_ulong_t, maxnode)
Type:
Parameter:Nothing
1644 | DECLARE_BITMAP(bm, MAX_NUMNODES) |
1646 | nr_bits = min_t - return minimum of two values, using the specified type*@type: data type to use*@x: first value*@y: second value(unsignedlong, maxnode - 1, MAX_NUMNODES) |
1647 | alloc_size = @a is a power of 2 value (nr_bits, BITS_PER_LONG) / 8 |
1649 | If nmask Then |
1650 | If compat_get_bitmap(bm, nmask, nr_bits) Then Return -EFAULT |
1652 | nm = Allocate user-space memory for the duration of a single system call,* in order to marshall parameters inside a compat thunk. |
1653 | If copy_to_user(nm, bm, alloc_size) Then Return -EFAULT |
1657 | Return Set the process memory policy |
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