diff options
Diffstat (limited to 'kernel/exit.c')
-rw-r--r-- | kernel/exit.c | 32 |
1 files changed, 2 insertions, 30 deletions
diff --git a/kernel/exit.c b/kernel/exit.c index 3bec141c82f6..6686ed1e4aa3 100644 --- a/kernel/exit.c +++ b/kernel/exit.c | |||
@@ -46,6 +46,7 @@ | |||
46 | #include <linux/blkdev.h> | 46 | #include <linux/blkdev.h> |
47 | #include <linux/task_io_accounting_ops.h> | 47 | #include <linux/task_io_accounting_ops.h> |
48 | #include <linux/tracehook.h> | 48 | #include <linux/tracehook.h> |
49 | #include <linux/fs_struct.h> | ||
49 | #include <linux/init_task.h> | 50 | #include <linux/init_task.h> |
50 | #include <trace/sched.h> | 51 | #include <trace/sched.h> |
51 | 52 | ||
@@ -420,7 +421,6 @@ EXPORT_SYMBOL(disallow_signal); | |||
420 | void daemonize(const char *name, ...) | 421 | void daemonize(const char *name, ...) |
421 | { | 422 | { |
422 | va_list args; | 423 | va_list args; |
423 | struct fs_struct *fs; | ||
424 | sigset_t blocked; | 424 | sigset_t blocked; |
425 | 425 | ||
426 | va_start(args, name); | 426 | va_start(args, name); |
@@ -453,11 +453,7 @@ void daemonize(const char *name, ...) | |||
453 | 453 | ||
454 | /* Become as one with the init task */ | 454 | /* Become as one with the init task */ |
455 | 455 | ||
456 | exit_fs(current); /* current->fs->count--; */ | 456 | daemonize_fs_struct(); |
457 | fs = init_task.fs; | ||
458 | current->fs = fs; | ||
459 | atomic_inc(&fs->count); | ||
460 | |||
461 | exit_files(current); | 457 | exit_files(current); |
462 | current->files = init_task.files; | 458 | current->files = init_task.files; |
463 | atomic_inc(¤t->files->count); | 459 | atomic_inc(¤t->files->count); |
@@ -556,30 +552,6 @@ void exit_files(struct task_struct *tsk) | |||
556 | } | 552 | } |
557 | } | 553 | } |
558 | 554 | ||
559 | void put_fs_struct(struct fs_struct *fs) | ||
560 | { | ||
561 | /* No need to hold fs->lock if we are killing it */ | ||
562 | if (atomic_dec_and_test(&fs->count)) { | ||
563 | path_put(&fs->root); | ||
564 | path_put(&fs->pwd); | ||
565 | kmem_cache_free(fs_cachep, fs); | ||
566 | } | ||
567 | } | ||
568 | |||
569 | void exit_fs(struct task_struct *tsk) | ||
570 | { | ||
571 | struct fs_struct * fs = tsk->fs; | ||
572 | |||
573 | if (fs) { | ||
574 | task_lock(tsk); | ||
575 | tsk->fs = NULL; | ||
576 | task_unlock(tsk); | ||
577 | put_fs_struct(fs); | ||
578 | } | ||
579 | } | ||
580 | |||
581 | EXPORT_SYMBOL_GPL(exit_fs); | ||
582 | |||
583 | #ifdef CONFIG_MM_OWNER | 555 | #ifdef CONFIG_MM_OWNER |
584 | /* | 556 | /* |
585 | * Task p is exiting and it owned mm, lets find a new owner for it | 557 | * Task p is exiting and it owned mm, lets find a new owner for it |