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| author | David S. Miller <davem@davemloft.net> | 2018-02-19 18:46:11 -0500 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-02-19 18:46:11 -0500 |
| commit | f5c0c6f4299f870f074235fbf552ecf957fc249c (patch) | |
| tree | 6b46b9c0b271185b6f98fab350c3891042e729b1 /include/asm-generic/bitops/lock.h | |
| parent | 26736a08ee0fb89a4f09bfb2c9f0805028ff63aa (diff) | |
| parent | 79c0ef3e85c015b0921a8fd5dd539d1480e9cd6c (diff) | |
| download | linux-f5c0c6f4299f870f074235fbf552ecf957fc249c.tar.bz2 | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'include/asm-generic/bitops/lock.h')
| -rw-r--r-- | include/asm-generic/bitops/lock.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/asm-generic/bitops/lock.h b/include/asm-generic/bitops/lock.h index bc397573c43a..67ab280ad134 100644 --- a/include/asm-generic/bitops/lock.h +++ b/include/asm-generic/bitops/lock.h @@ -7,7 +7,8 @@ * @nr: Bit to set * @addr: Address to count from * - * This operation is atomic and provides acquire barrier semantics. + * This operation is atomic and provides acquire barrier semantics if + * the returned value is 0. * It can be used to implement bit locks. */ #define test_and_set_bit_lock(nr, addr) test_and_set_bit(nr, addr) |