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| author | Torvald Riegel <triegel@redhat.com> | 2015-06-23 15:22:25 +0200 |
|---|---|---|
| committer | Torvald Riegel <triegel@redhat.com> | 2015-06-30 15:57:15 +0200 |
| commit | 4eb984d3ab5641ce7992204756ac15a61f5f7181 (patch) | |
| tree | 12603bae9d2582033a3186174d1379121e1ea642 /nscd | |
| parent | e02920bc029019443326eecaa7b267b78ff2892e (diff) | |
| download | glibc-4eb984d3ab5641ce7992204756ac15a61f5f7181.zip glibc-4eb984d3ab5641ce7992204756ac15a61f5f7181.tar.gz glibc-4eb984d3ab5641ce7992204756ac15a61f5f7181.tar.bz2 | |
Clean up BUSY_WAIT_NOP and atomic_delay.
This patch combines BUSY_WAIT_NOP and atomic_delay into a new
atomic_spin_nop function and adjusts all clients. The new function is
put into atomic.h because what is best done in a spin loop is
architecture-specific, and atomics must be used for spinning. The
function name is meant to tell users that this has no effect on
synchronization semantics but is a performance aid for spinning.
Diffstat (limited to 'nscd')
| -rw-r--r-- | nscd/nscd-client.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/nscd/nscd-client.h b/nscd/nscd-client.h index 43a8c61..740e2f9 100644 --- a/nscd/nscd-client.h +++ b/nscd/nscd-client.h @@ -378,7 +378,7 @@ __nscd_acquire_maplock (volatile struct locked_map_ptr *mapptr) if (__glibc_unlikely (++cnt > 5)) return false; - atomic_delay (); + atomic_spin_nop (); } return true; |