Revision 74545f63890e38520eb4d1dbedcadaa9c0dbc824 authored by David Carrillo-Cisneros on 23 December 2016, 01:17:40 UTC, committed by Ingo Molnar on 05 January 2017, 08:13:55 UTC
The conversion of Intel PMU drivers into modules did not include reference counting. The machine will crash when attempting to access deleted code if an event from a module PMU is started and the module removed before the event is destroyed. i.e. this crashes the machine: $ insmod intel-rapl-perf.ko $ perf stat -e power/energy-cores/ -C 0 & $ rmmod intel-rapl-perf.ko Set THIS_MODULE to pmu->module in Intel module PMUs so that generic code can handle reference counting and deny rmmod while an event still exists. Signed-off-by: David Carrillo-Cisneros <davidcc@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Borislav Petkov <bp@suse.de> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Kan Liang <kan.liang@intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paul Turner <pjt@google.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1482455860-116269-1-git-send-email-davidcc@google.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
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ChangeLog | -rw-r--r-- | 14.0 KB |
Kconfig | -rw-r--r-- | 917 bytes |
Makefile | -rw-r--r-- | 206 bytes |
TODO | -rw-r--r-- | 385 bytes |
befs.h | -rw-r--r-- | 3.0 KB |
befs_fs_types.h | -rw-r--r-- | 4.9 KB |
btree.c | -rw-r--r-- | 21.9 KB |
btree.h | -rw-r--r-- | 304 bytes |
datastream.c | -rw-r--r-- | 15.8 KB |
datastream.h | -rw-r--r-- | 536 bytes |
debug.c | -rw-r--r-- | 7.1 KB |
endian.h | -rw-r--r-- | 3.1 KB |
inode.c | -rw-r--r-- | 1.2 KB |
inode.h | -rw-r--r-- | 120 bytes |
io.c | -rw-r--r-- | 1.3 KB |
io.h | -rw-r--r-- | 110 bytes |
linuxvfs.c | -rw-r--r-- | 24.6 KB |
super.c | -rw-r--r-- | 3.3 KB |
super.h | -rw-r--r-- | 131 bytes |
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