diff options
| author | Ingo Molnar <[email protected]> | 2009-02-25 08:40:09 +0100 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2009-02-25 09:16:01 +0100 |
| commit | 2d542cf34264ac92e9e7ac55c0b096b066d569d2 (patch) | |
| tree | e7864da3a119ba2fd1800616f0041610d09058cb /net/lapb/lapb_iface.c | |
| parent | 499aa86dcbc3c4daf7d2c59c5c30e1a78220fbc1 (diff) | |
tracing/hw-branch-tracing: convert bts-tracer mutex to a spinlock
Impact: fix CPU hotplug lockup
bts_hotcpu_handler() is called with irqs disabled, so using mutex_lock()
is a no-no.
All the BTS codepaths here are atomic (they do not schedule), so using
a spinlock is the right solution.
Cc: Markus Metzger <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'net/lapb/lapb_iface.c')
0 files changed, 0 insertions, 0 deletions