test_and_clear_bit
Section: Kernel Hacker's Manual (9)
Updated: test_and_clear_bit
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NAME
test_and_clear_bit - Clear a bit and return its old value
SYNOPSIS
int test_and_clear_bit
(int nr,
volatile void *addr);
ARGUMENTS
- nr
-
Bit to clear
- addr
-
Address to count from
DESCRIPTION
This operation is atomic and cannot be reordered.
It also implies a memory barrier.
Index
- NAME
-
- SYNOPSIS
-
- ARGUMENTS
-
- DESCRIPTION
-
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