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x86/mce: Rename rcu_dereference_check_mce() to mce_log_get_idx_check()

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The "rcu_" prefix misleads for it being a proper RCU interface
which is not. It basically checks whether we're preemptible or
holding the chrdev_read mutex.

Rename it accordingly.

Signed-off-by: Borislav Petkov <[email protected]>
Acked-by: Paul E. McKenney <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Tony Luck <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Borislav Petkov 2015-08-12 18:29:43 +02:00 • committed by Ingo Molnar
commit 9a7783d021
1 changed files with 4 additions and 4 deletions
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8
arch/x86/kernel/cpu/mcheck/mce.c
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@ -52,11 +52,11 @@
static DEFINE_MUTEX(mce_chrdev_read_mutex);
#define rcu_dereference_check_mce(p) \
#define mce_log_get_idx_check(p) \
({ \
rcu_lockdep_assert(rcu_read_lock_sched_held() || \
lockdep_is_held(&mce_chrdev_read_mutex), \
"suspicious rcu_dereference_check_mce() usage"); \
"suspicious mce_log_get_idx_check() usage"); \
smp_load_acquire(&(p)); \
})
@ -165,7 +165,7 @@ void mce_log(struct mce *mce)
mce->finished = 0;
wmb();
for (;;) {
entry = rcu_dereference_check_mce(mcelog.next);
entry = mce_log_get_idx_check(mcelog.next);
for (;;) {
/*
@ -1812,7 +1812,7 @@ static ssize_t mce_chrdev_read(struct file *filp, char __user *ubuf,
goto out;
}
next = rcu_dereference_check_mce(mcelog.next);
next = mce_log_get_idx_check(mcelog.next);
/* Only supports full reads right now */
err = -EINVAL;