pstore: Convert buf_lock to semaphore

[mirror_ubuntu-bionic-kernel.git] / include / linux / pstore.h

diff --git a/include/linux/pstore.h b/include/linux/pstore.h
index 170bb981d2fd4a7fcaf47e01c2ffd0a4e52e5fa9..70913ec87785197119f285981f2b73b81604fc09 100644 (file)
--- a/include/linux/pstore.h
+++ b/include/linux/pstore.h
@@ -26,7 +26,7 @@
 #include <linux/errno.h>
 #include <linux/kmsg_dump.h>
 #include <linux/mutex.h>
-#include <linux/spinlock.h>
+#include <linux/semaphore.h>
 #include <linux/time.h>
 #include <linux/types.h>
 
@@ -88,7 +88,7 @@ struct pstore_record {
  * @owner:     module which is repsonsible for this backend driver
  * @name:      name of the backend driver
  *
- * @buf_lock:  spinlock to serialize access to @buf
+ * @buf_lock:  semaphore to serialize access to @buf
  * @buf:       preallocated crash dump buffer
  * @bufsize:   size of @buf available for crash dump bytes (must match
  *             smallest number of bytes available for writing to a
@@ -173,7 +173,7 @@ struct pstore_info {
        struct module   *owner;
        char            *name;
 
-       spinlock_t      buf_lock;
+       struct semaphore buf_lock;
        char            *buf;
        size_t          bufsize;
 
@@ -199,7 +199,6 @@ struct pstore_info {
 
 extern int pstore_register(struct pstore_info *);
 extern void pstore_unregister(struct pstore_info *);
-extern bool pstore_cannot_block_path(enum kmsg_dump_reason reason);
 
 struct pstore_ftrace_record {
        unsigned long ip;