Revision 57cdfdf829a850a317425ed93c6a576c9ee6329c authored by Anton Blanchard on 21 October 2010, 00:52:12 UTC, committed by Benjamin Herrenschmidt on 07 February 2011, 02:06:08 UTC
Spinlocks on shared processor partitions use H_YIELD to notify the hypervisor we are waiting on another virtual CPU. Unfortunately this means the hcall tracepoints can recurse. The patch below adds a percpu depth and checks it on both the entry and exit hcall tracepoints. Signed-off-by: Anton Blanchard <anton@samba.org> Acked-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> CC: stable@kernel.org
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| File | Mode | Size |
|---|---|---|
| Kconfig | -rw-r--r-- | 248 bytes |
| Makefile | -rw-r--r-- | 992 bytes |
| af_llc.c | -rw-r--r-- | 30.8 KB |
| llc_c_ac.c | -rw-r--r-- | 35.4 KB |
| llc_c_ev.c | -rw-r--r-- | 21.3 KB |
| llc_c_st.c | -rw-r--r-- | 149.8 KB |
| llc_conn.c | -rw-r--r-- | 27.2 KB |
| llc_core.c | -rw-r--r-- | 4.2 KB |
| llc_if.c | -rw-r--r-- | 4.4 KB |
| llc_input.c | -rw-r--r-- | 5.5 KB |
| llc_output.c | -rw-r--r-- | 2.4 KB |
| llc_pdu.c | -rw-r--r-- | 10.6 KB |
| llc_proc.c | -rw-r--r-- | 6.6 KB |
| llc_s_ac.c | -rw-r--r-- | 5.9 KB |
| llc_s_ev.c | -rw-r--r-- | 3.5 KB |
| llc_s_st.c | -rw-r--r-- | 5.7 KB |
| llc_sap.c | -rw-r--r-- | 11.4 KB |
| llc_station.c | -rw-r--r-- | 20.7 KB |
| sysctl_net_llc.c | -rw-r--r-- | 2.0 KB |
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