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 |
|---|---|---|
| Documentation | ||
| arch | ||
| block | ||
| crypto | ||
| drivers | ||
| firmware | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .gitignore | -rw-r--r-- | 936 bytes |
| .mailmap | -rw-r--r-- | 4.0 KB |
| COPYING | -rw-r--r-- | 18.3 KB |
| CREDITS | -rw-r--r-- | 91.7 KB |
| Kbuild | -rw-r--r-- | 2.4 KB |
| Kconfig | -rw-r--r-- | 252 bytes |
| MAINTAINERS | -rw-r--r-- | 186.6 KB |
| Makefile | -rw-r--r-- | 50.9 KB |
| README | -rw-r--r-- | 17.1 KB |
| REPORTING-BUGS | -rw-r--r-- | 3.3 KB |
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