diff options
| author | David S. Miller <davem@davemloft.net> | 2018-05-11 20:53:22 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-05-11 20:53:22 -0400 |
| commit | b2d6cee117f708d493c020f9f355297321507be7 (patch) | |
| tree | 2c6975b47034de78fc899b4191260bb2704efc0f /include/linux/wait_bit.h | |
| parent | b753a9faaf9aef1338c28ebd9ace6d749428788b (diff) | |
| parent | 4bc871984f7cb5b2dec3ae64b570cb02f9ce2227 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
The bpf syscall and selftests conflicts were trivial
overlapping changes.
The r8169 change involved moving the added mdelay from 'net' into a
different function.
A TLS close bug fix overlapped with the splitting of the TLS state
into separate TX and RX parts. I just expanded the tests in the bug
fix from "ctx->conf == X" into "ctx->tx_conf == X && ctx->rx_conf
== X".
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/wait_bit.h')
| -rw-r--r-- | include/linux/wait_bit.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/include/linux/wait_bit.h b/include/linux/wait_bit.h index 9318b2166439..2b0072fa5e92 100644 --- a/include/linux/wait_bit.h +++ b/include/linux/wait_bit.h @@ -305,4 +305,21 @@ do { \ __ret; \ }) +/** + * clear_and_wake_up_bit - clear a bit and wake up anyone waiting on that bit + * + * @bit: the bit of the word being waited on + * @word: the word being waited on, a kernel virtual address + * + * You can use this helper if bitflags are manipulated atomically rather than + * non-atomically under a lock. + */ +static inline void clear_and_wake_up_bit(int bit, void *word) +{ + clear_bit_unlock(bit, word); + /* See wake_up_bit() for which memory barrier you need to use. */ + smp_mb__after_atomic(); + wake_up_bit(word, bit); +} + #endif /* _LINUX_WAIT_BIT_H */ |