diff options
Diffstat (limited to 'fs/fcntl.c')
| -rw-r--r-- | fs/fcntl.c | 17 |
1 files changed, 11 insertions, 6 deletions
@@ -18,6 +18,7 @@ #include <linux/ptrace.h> #include <linux/signal.h> #include <linux/rcupdate.h> +#include <linux/pid_namespace.h> #include <asm/poll.h> #include <asm/siginfo.h> @@ -110,7 +111,7 @@ out: return error; } -static int dupfd(struct file *file, unsigned int start) +static int dupfd(struct file *file, unsigned int start, int cloexec) { struct files_struct * files = current->files; struct fdtable *fdt; @@ -122,7 +123,10 @@ static int dupfd(struct file *file, unsigned int start) /* locate_fd() may have expanded fdtable, load the ptr */ fdt = files_fdtable(files); FD_SET(fd, fdt->open_fds); - FD_CLR(fd, fdt->close_on_exec); + if (cloexec) + FD_SET(fd, fdt->close_on_exec); + else + FD_CLR(fd, fdt->close_on_exec); spin_unlock(&files->file_lock); fd_install(fd, file); } else { @@ -195,7 +199,7 @@ asmlinkage long sys_dup(unsigned int fildes) struct file * file = fget(fildes); if (file) - ret = dupfd(file, 0); + ret = dupfd(file, 0, 0); return ret; } @@ -289,7 +293,7 @@ int f_setown(struct file *filp, unsigned long arg, int force) who = -who; } rcu_read_lock(); - pid = find_pid(who); + pid = find_vpid(who); result = __f_setown(filp, pid, type, force); rcu_read_unlock(); return result; @@ -305,7 +309,7 @@ pid_t f_getown(struct file *filp) { pid_t pid; read_lock(&filp->f_owner.lock); - pid = pid_nr(filp->f_owner.pid); + pid = pid_nr_ns(filp->f_owner.pid, current->nsproxy->pid_ns); if (filp->f_owner.pid_type == PIDTYPE_PGID) pid = -pid; read_unlock(&filp->f_owner.lock); @@ -319,8 +323,9 @@ static long do_fcntl(int fd, unsigned int cmd, unsigned long arg, switch (cmd) { case F_DUPFD: + case F_DUPFD_CLOEXEC: get_file(filp); - err = dupfd(filp, arg); + err = dupfd(filp, arg, cmd == F_DUPFD_CLOEXEC); break; case F_GETFD: err = get_close_on_exec(fd) ? FD_CLOEXEC : 0; |
