bcachefs fix module compilation

Signed-off-by: Peter Jung <[email protected]>

5.18/0001-bcachefs-after-lru.patch

@@ -1,7 +1,7 @@
-From db5737e931d295bf4d123b5368a2fef3958641d6 Mon Sep 17 00:00:00 2001
+From 5b13fe4d30654e4d60514bcae59adbd1e4c408e2 Mon Sep 17 00:00:00 2001
 From: Peter Jung <[email protected]>
 Date: Fri, 22 Jul 2022 14:09:10 +0200
-Subject: [PATCH 16/16] bcachefs-after-lru
+Subject: [PATCH] bcachefs-after-lru
 
 Signed-off-by: Peter Jung <[email protected]>
 ---
@@ -215,6 +215,7 @@ Signed-off-by: Peter Jung <[email protected]>
  kernel/locking/lockdep.c | 20 +
  kernel/locking/six.c | 759 ++++
  kernel/module/main.c | 4 +-
+ kernel/stacktrace.c | 2 +
  kernel/trace/trace.c | 45 +-
  kernel/trace/trace_dynevent.c | 34 +-
  kernel/trace/trace_events_filter.c | 2 +-
@@ -226,6 +227,7 @@ Signed-off-by: Peter Jung <[email protected]>
  lib/Kconfig.debug | 9 +
  lib/Makefile | 8 +-
  {drivers/md/bcache => lib}/closure.c | 35 +-
+ lib/errname.c | 1 +
  lib/generic-radix-tree.c | 76 +-
  lib/hexdump.c | 246 +-
  lib/pretty-printers.c | 60 +
@@ -251,7 +253,7 @@ Signed-off-by: Peter Jung <[email protected]>
  net/9p/trans_virtio.c | 4 +-
  net/9p/trans_xen.c | 2 +-
  tools/testing/nvdimm/test/ndtest.c | 22 +-
- 246 files changed, 84379 insertions(+), 2223 deletions(-)
+ 248 files changed, 84382 insertions(+), 2223 deletions(-)
  create mode 100644 .github/ISSUE_TEMPLATE/bug_report.md
  create mode 100644 fs/bcachefs/Kconfig
  create mode 100644 fs/bcachefs/Makefile
@@ -85584,6 +85586,26 @@ index 31d83ee88462..69a6916645c5 100644
  }
 
  bool __weak module_init_section(const char *name)
+diff --git a/kernel/stacktrace.c b/kernel/stacktrace.c
+index 9ed5ce989415..3428568bb3f1 100644
+--- a/kernel/stacktrace.c
++++ b/kernel/stacktrace.c
+@@ -151,6 +151,7 @@ unsigned int stack_trace_save_tsk(struct task_struct *tsk, unsigned long *store,
+ put_task_stack(tsk);
+ return c.len;
+ }
++EXPORT_SYMBOL(stack_trace_save_tsk);
+
+ /**
+ * stack_trace_save_regs - Save a stack trace based on pt_regs into a storage array
+@@ -301,6 +302,7 @@ unsigned int stack_trace_save_tsk(struct task_struct *task,
+ save_stack_trace_tsk(task, &trace);
+ return trace.nr_entries;
+ }
++EXPORT_SYMBOL(stack_trace_save_tsk);
+
+ /**
+ * stack_trace_save_regs - Save a stack trace based on pt_regs into a storage array
 diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
 index a2e44354b63a..5f3cce1b52ef 100644
 --- a/kernel/trace/trace.c
@@ -86376,6 +86398,15 @@ index d8d9394a6beb..b38ded00b9b0 100644
 -MODULE_AUTHOR("Kent Overstreet <[email protected]>");
 -MODULE_LICENSE("GPL");
 +#endif
+diff --git a/lib/errname.c b/lib/errname.c
+index 05cbf731545f..82ea4778f478 100644
+--- a/lib/errname.c
++++ b/lib/errname.c
+@@ -222,3 +222,4 @@ const char *errname(int err)
+
+ return err > 0 ? name + 1 : name;
+ }
++EXPORT_SYMBOL(errname);
 diff --git a/lib/generic-radix-tree.c b/lib/generic-radix-tree.c
 index f25eb111c051..41f1bcdc4488 100644
 --- a/lib/generic-radix-tree.c