exec: Remove reset_files_struct
Now that exec no longer needs to restore the previous value of current->files
on error there are no more callers of reset_files_struct so remove it.
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
v1: https://lkml.kernel.org/r/20200817220425.9389-3-ebiederm@xmission.com
Link: https://lkml.kernel.org/r/20201120231441.29911-3-ebiederm@xmission.com
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
diff --git a/fs/file.c b/fs/file.c
index 4559b5f..beae7c5 100644
--- a/fs/file.c
+++ b/fs/file.c
@@ -436,18 +436,6 @@ void put_files_struct(struct files_struct *files)
}
}
-void reset_files_struct(struct files_struct *files)
-{
- struct task_struct *tsk = current;
- struct files_struct *old;
-
- old = tsk->files;
- task_lock(tsk);
- tsk->files = files;
- task_unlock(tsk);
- put_files_struct(old);
-}
-
void exit_files(struct task_struct *tsk)
{
struct files_struct * files = tsk->files;
diff --git a/include/linux/fdtable.h b/include/linux/fdtable.h
index f46a084..7cc9885 100644
--- a/include/linux/fdtable.h
+++ b/include/linux/fdtable.h
@@ -108,7 +108,6 @@ struct task_struct;
struct files_struct *get_files_struct(struct task_struct *);
void put_files_struct(struct files_struct *fs);
-void reset_files_struct(struct files_struct *);
int unshare_files(void);
struct files_struct *dup_fd(struct files_struct *, unsigned, int *) __latent_entropy;
void do_close_on_exec(struct files_struct *);