1__CHANGE_BIT(9) Basic C Library Functions __CHANGE_BIT(9)
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4
NAME
6__change_bit - Toggle a bit in memory
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SYNOPSIS
9void __change_bit(int nr, volatile unsigned long * addr);
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ARGUMENTS
12nr
13the bit to change
1415
addr
16the address to start counting from
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DESCRIPTION
19Unlike change_bit, this function is non-atomic and may be reordered. If
20it´s called on the same region of memory simultaneously, the effect may
21be that only one operation succeeds.
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COPYRIGHT
24Kernel Hackers Manual 2.6. June 2019 __CHANGE_BIT(9)