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-rw-r--r--include/linux/fdtable.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/fdtable.h b/include/linux/fdtable.h
index 639933f37da9..fda4b81dd735 100644
--- a/include/linux/fdtable.h
+++ b/include/linux/fdtable.h
@@ -91,6 +91,13 @@ static inline struct file *files_lookup_fd_raw(struct files_struct *files, unsig
return NULL;
}
+static inline struct file *files_lookup_fd_locked(struct files_struct *files, unsigned int fd)
+{
+ RCU_LOCKDEP_WARN(!lockdep_is_held(&files->file_lock),
+ "suspicious rcu_dereference_check() usage");
+ return files_lookup_fd_raw(files, fd);
+}
+
static inline struct file *fcheck_files(struct files_struct *files, unsigned int fd)
{
RCU_LOCKDEP_WARN(!rcu_read_lock_held() &&