diff options
| author | John Stultz <johnstul@us.ibm.com> | 2010-02-22 22:58:20 -0500 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2010-04-27 11:33:01 -0400 |
| commit | 9e0b2cfd72583db7ad50e3e73958926fb65e0557 (patch) | |
| tree | b265079c95ea1846026c5664e82c169404fc4e31 /kernel/trace/trace_functions_graph.c | |
| parent | a3426080b810723f1bed95b8d08146738126d324 (diff) | |
Revert d_count back to an atomic_t
This patch reverts the portion of Nick's vfs scalability patch that
converts the dentry d_count from an atomic_t to an int protected by
the d_lock.
This greatly improves vfs scalability with the -rt kernel, as
the extra lock contention on the d_lock hurts very badly when
CONFIG_PREEMPT_RT is enabled and the spinlocks become rtmutexes.
Signed-off-by: John Stultz <johnstul@us.ibm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/trace/trace_functions_graph.c')
0 files changed, 0 insertions, 0 deletions