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rcutorture: Abstract torture-test initialization

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This commit creates torture_init_begin() and torture_init_end() functions
to abstract locking and allow the torture_type and verbose variables
in kernel/torture.o to become static.  With a bit more abstraction,
fullstop_mutex will also become static.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
This commit is contained in:
Paul E. McKenney
2014-01-30 13:38:09 -08:00
parent 2e9e8081d2
commit b5daa8f3b3
3 changed files with 40 additions and 15 deletions
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kernel/torture.c
+27
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@@ -49,6 +49,9 @@
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Paul E. McKenney <paulmck@us.ibm.com>");
static char *torture_type;
static bool verbose;
int fullstop = FULLSTOP_RMMOD;
EXPORT_SYMBOL_GPL(fullstop);
DEFINE_MUTEX(fullstop_mutex);
@@ -426,3 +429,27 @@ void torture_shutdown_absorb(const char *title)
}
}
EXPORT_SYMBOL_GPL(torture_shutdown_absorb);
/*
* Initialize torture module. Please note that this is -not- invoked via
* the usual module_init() mechanism, but rather by an explicit call from
* the client torture module. This call must be paired with a later
* torture_init_end().
*/
void __init torture_init_begin(char *ttype, bool v)
{
mutex_lock(&fullstop_mutex);
torture_type = ttype;
verbose = v;
}
EXPORT_SYMBOL_GPL(torture_init_begin);
/*
* Tell the torture module that initialization is complete.
*/
void __init torture_init_end(void)
{
mutex_unlock(&fullstop_mutex);
}
EXPORT_SYMBOL_GPL(torture_init_end);