f2fs: add dump_stack() in f2fs_handle_critical_error()

To show call stack, so that we can see who causes critical error, note
that it won't call dump_stack() for shutdown path.

Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 1beff52ae80b36614337537caf36af569867e522..759b642991d4ad3e55c9ef006f8f93aea12f6e5a 100644 (file)
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -4250,6 +4250,8 @@ void f2fs_handle_critical_error(struct f2fs_sb_info *sbi, unsigned char reason)
 
        if (shutdown)
                set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
+       else
+               dump_stack();
 
        /*
         * Continue filesystem operators if errors=continue. Should not set