diff options
Diffstat (limited to 'include/linux/fdtable.h')
| -rw-r--r-- | include/linux/fdtable.h | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/include/linux/fdtable.h b/include/linux/fdtable.h index c45306a9f007..ba2536c3b911 100644 --- a/include/linux/fdtable.h +++ b/include/linux/fdtable.h @@ -25,7 +25,7 @@ struct fdtable { unsigned int max_fds; - struct file __rcu **fd; /* current fd array */ + struct file __rcu **fd __counted_by_ptr(max_fds); /* current fd array */ unsigned long *close_on_exec; unsigned long *open_fds; unsigned long *full_fds_bits; @@ -100,12 +100,22 @@ static inline bool close_on_exec(unsigned int fd, const struct files_struct *fil struct task_struct; void put_files_struct(struct files_struct *fs); -int unshare_files(void); +void switch_files_struct(struct task_struct *tsk, struct files_struct *files); +int unshare_fd(unsigned long unshare_flags, struct files_struct **new_fdp); +enum fd_range_flags { + /* Leave behind all descriptors outside of the specified range. */ + FD_RANGE_EXCEPT = (1U << 0), + + /* Only select descriptors that have close-on-exec set. */ + FD_RANGE_CLOEXEC_ONLY = (1U << 1), +}; + struct fd_range { unsigned int from, to; + enum fd_range_flags flags; }; struct files_struct *dup_fd(struct files_struct *, struct fd_range *) __latent_entropy; -void do_close_on_exec(struct files_struct *); +void close_cloexec_files(struct files_struct *); int iterate_fd(struct files_struct *, unsigned, int (*)(const void *, struct file *, unsigned), const void *); |