Commit-ID:  9a7783d02197f299f71b4fa2364a345c05f92b83
Gitweb:     http://git.kernel.org/tip/9a7783d02197f299f71b4fa2364a345c05f92b83
Author:     Borislav Petkov <[email protected]>
AuthorDate: Wed, 12 Aug 2015 18:29:43 +0200
Committer:  Ingo Molnar <[email protected]>
CommitDate: Thu, 13 Aug 2015 10:12:53 +0200

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

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]>
---
 arch/x86/kernel/cpu/mcheck/mce.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
index ee5272d..b979711 100644
--- a/arch/x86/kernel/cpu/mcheck/mce.c
+++ b/arch/x86/kernel/cpu/mcheck/mce.c
@@ -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;
--
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