mirror_zfs/patches/fc11-spl-export-symbols.patch

Required missing symbols for FC11 kernels (2.6.29.4-167.fc11.x86_64)

* get_vmalloc_info()
There is no clean API in the kernel for modules to check the virtual
memory state of the system.  This information is available in user
space under /proc/meminfo and the details for every virtual memory
node are available under /proc/vmallocinfo.

* groups_search()
This support is easily replicated if the symbol is not provided by the
kernel.  However exporting the symbol from the kernel is preferable.
This is required by the solaris credential API.

* task_curr()
This symbol is used by the solaris adaptive mutex implementation.  If
unavailable then all solaris mutexs behave strictly like linux style
semaphones.  If available then the mutex may spin for a short while,
rather than sleep, if the holder of the lock is currently executing.

* first_online_pgdat()
* next_online_pgdat()
* next_zone()
Required helper functions for the zone iterators for_each_zone() and
for_each_populated_zone().  These symbols were previously available
in 2.6.17 kernels, marked unused in 2.6.18 kernels, and removed as
of the 2.6.19 kernel series.  The information is available in user
space under /proc/zoneinfo.

diff --git a/fs/proc/mmu.c b/fs/proc/mmu.c
index 8ae221d..081c7b5 100644
--- a/fs/proc/mmu.c
+++ b/fs/proc/mmu.c
@@ -58,3 +58,4 @@ void get_vmalloc_info(struct vmalloc_info *vmi)
 		read_unlock(&vmlist_lock);
 	}
 }
+EXPORT_SYMBOL(get_vmalloc_info);
diff --git a/kernel/groups.c b/kernel/groups.c
index 2b45b2e..24b62f8 100644
--- a/kernel/groups.c
+++ b/kernel/groups.c
@@ -153,6 +153,7 @@ int groups_search(const struct group_info *group_info, gid_t grp)
 	}
 	return 0;
 }
+EXPORT_SYMBOL(groups_search);
 
 /**
  * set_groups - Change a group subscription in a set of credentials
diff --git a/kernel/sched.c b/kernel/sched.c
index 1b59e26..8728c52 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -1883,10 +1883,11 @@ static void deactivate_task(struct rq *rq, struct task_struct *p, int sleep)
  * task_curr - is this task currently executing on a CPU?
  * @p: the task in question.
  */
-inline int task_curr(const struct task_struct *p)
+task_curr(const struct task_struct *p)
 {
 	return cpu_curr(task_cpu(p)) == p;
 }
+EXPORT_SYMBOL(task_curr);
 
 static inline void __set_task_cpu(struct task_struct *p, unsigned int cpu)
 {
diff --git a/mm/mmzone.c b/mm/mmzone.c
index f5b7d17..1468a22 100644
--- a/mm/mmzone.c
+++ b/mm/mmzone.c
@@ -14,6 +14,7 @@ struct pglist_data *first_online_pgdat(void)
 {
 	return NODE_DATA(first_online_node);
 }
+EXPORT_SYMBOL(first_online_pgdat);
 
 struct pglist_data *next_online_pgdat(struct pglist_data *pgdat)
 {
@@ -23,6 +24,7 @@ struct pglist_data *next_online_pgdat(struct pglist_data *pgdat)
 		return NULL;
 	return NODE_DATA(nid);
 }
+EXPORT_SYMBOL(next_online_pgdat);
 
 /*
  * next_zone - helper magic for for_each_zone()
@@ -42,6 +44,7 @@ struct zone *next_zone(struct zone *zone)
 	}
 	return zone;
 }
+EXPORT_SYMBOL(next_zone);
 
 static inline int zref_in_nodemask(struct zoneref *zref, nodemask_t *nodes)
 {
diff --git a/kernel/fork.c b/kernel/fork.c
index 9b42695..852499e 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -159,6 +159,7 @@ void __put_task_struct(struct task_struct *tsk)
 	if (!profile_handoff_task(tsk))
 		free_task(tsk);
 }
+EXPORT_SYMBOL(__put_task_struct);
 
 /*
  * macro override instead of weak attribute alias, to workaround