patch-2.4.18 linux/include/linux/if_bonding.h

• Lines: 16
• Date: Mon Jan 14 16:24:07 2002
• Orig file: linux.orig/include/linux/if_bonding.h
• Orig date: Mon Feb 18 20:18:40 2002

diff -Naur -X /home/marcelo/lib/dontdiff linux.orig/include/linux/if_bonding.h linux/include/linux/if_bonding.h
@@ -79,6 +79,15 @@
 	u32 link_failure_count;
 } slave_t;
 
+/*
+ * Here are the locking policies for the two bonding locks:
+ *
+ * 1) Get bond->lock when reading/writing slave list.
+ * 2) Get bond->ptrlock when reading/writing bond->current_slave.
+ *    (It is unnecessary when the write-lock is put with bond->lock.)
+ * 3) When we lock with bond->ptrlock, we must lock with bond->lock
+ *    beforehand.
+ */
 typedef struct bonding {
 	slave_t *next;
 	slave_t *prev;