diff options
Diffstat (limited to 'kernel/fork.c')
| -rw-r--r-- | kernel/fork.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/kernel/fork.c b/kernel/fork.c index ac8100e3088a..dfd10cb370c3 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -368,6 +368,8 @@ void fastcall __mmdrop(struct mm_struct *mm) */ void mmput(struct mm_struct *mm) { + might_sleep(); + if (atomic_dec_and_test(&mm->mm_users)) { exit_aio(mm); exit_mmap(mm); @@ -623,6 +625,7 @@ out: /* * Allocate a new files structure and copy contents from the * passed in files structure. + * errorp will be valid only when the returned files_struct is NULL. */ static struct files_struct *dup_fd(struct files_struct *oldf, int *errorp) { @@ -631,6 +634,7 @@ static struct files_struct *dup_fd(struct files_struct *oldf, int *errorp) int open_files, size, i, expand; struct fdtable *old_fdt, *new_fdt; + *errorp = -ENOMEM; newf = alloc_files(); if (!newf) goto out; @@ -744,7 +748,6 @@ static int copy_files(unsigned long clone_flags, struct task_struct * tsk) * break this. */ tsk->files = NULL; - error = -ENOMEM; newf = dup_fd(oldf, &error); if (!newf) goto out; @@ -871,6 +874,7 @@ static inline int copy_signal(unsigned long clone_flags, struct task_struct * ts tsk->it_prof_expires = secs_to_cputime(sig->rlim[RLIMIT_CPU].rlim_cur); } + acct_init_pacct(&sig->pacct); return 0; } |