Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus

[firefly-linux-kernel-4.4.55.git] / fs / file.c

diff --git a/fs/file.c b/fs/file.c
index 708d997a77485989d53583084a3e1b99354fb407..2b3570b7caeba28bab8df3a4598fbdfc75fdcfc7 100644 (file)
--- a/fs/file.c
+++ b/fs/file.c
@@ -490,7 +490,7 @@ void exit_files(struct task_struct *tsk)
        }
 }
 
-static void __devinit fdtable_defer_list_init(int cpu)
+static void fdtable_defer_list_init(int cpu)
 {
        struct fdtable_defer *fddef = &per_cpu(fdtable_defer_list, cpu);
        spin_lock_init(&fddef->lock);
@@ -519,12 +519,6 @@ struct files_struct init_files = {
        .file_lock      = __SPIN_LOCK_UNLOCKED(init_task.file_lock),
 };
 
-void daemonize_descriptors(void)
-{
-       atomic_inc(&init_files.count);
-       reset_files_struct(&init_files);
-}
-
 /*
  * allocate a file descriptor, mark it busy.
  */
@@ -685,7 +679,6 @@ void do_close_on_exec(struct files_struct *files)
        struct fdtable *fdt;
 
        /* exec unshares first */
-       BUG_ON(atomic_read(&files->count) != 1);
        spin_lock(&files->file_lock);
        for (i = 0; ; i++) {
                unsigned long set;
@@ -995,16 +988,18 @@ int iterate_fd(struct files_struct *files, unsigned n,
                const void *p)
 {
        struct fdtable *fdt;
-       struct file *file;
        int res = 0;
        if (!files)
                return 0;
        spin_lock(&files->file_lock);
-       fdt = files_fdtable(files);
-       while (!res && n < fdt->max_fds) {
-               file = rcu_dereference_check_fdtable(files, fdt->fd[n++]);
-               if (file)
-                       res = f(p, file, n);
+       for (fdt = files_fdtable(files); n < fdt->max_fds; n++) {
+               struct file *file;
+               file = rcu_dereference_check_fdtable(files, fdt->fd[n]);
+               if (!file)
+                       continue;
+               res = f(p, file, n);
+               if (res)
+                       break;
        }
        spin_unlock(&files->file_lock);
        return res;