fs: remove all rcu head initializations, except on_stack initializations

Remove all rcu head inits. We don't care about the RCU head state before passing
it to call_rcu() anyway. Only leave the "on_stack" variants so debugobjects can
keep track of objects on stack.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Andries Brouwer <aeb@cwi.nl>

1 files changed, 0 insertions, 3 deletions

diff --git a/fs/file.c b/fs/file.c
index 34bb7f71d994..cccaead962c2 100644
--- a/fs/file.c
+++ b/fs/file.c
@@ -178,7 +178,6 @@ static struct fdtable * alloc_fdtable(unsigned int nr)
         fdt->open_fds = (fd_set *)data;
         data += nr / BITS_PER_BYTE;
         fdt->close_on_exec = (fd_set *)data;
-        INIT_RCU_HEAD(&fdt->rcu);
         fdt->next = NULL;
 
         return fdt;
@@ -312,7 +311,6 @@ struct files_struct *dup_fd(struct files_struct *oldf, int *errorp)
         new_fdt->close_on_exec = (fd_set *)&newf->close_on_exec_init;
         new_fdt->open_fds = (fd_set *)&newf->open_fds_init;
         new_fdt->fd = &newf->fd_array[0];
-        INIT_RCU_HEAD(&new_fdt->rcu);
         new_fdt->next = NULL;
 
         spin_lock(&oldf->file_lock);
@@ -430,7 +428,6 @@ struct files_struct init_files = {
                 .fd             = &init_files.fd_array[0],
                 .close_on_exec  = (fd_set *)&init_files.close_on_exec_init,
                 .open_fds       = (fd_set *)&init_files.open_fds_init,
-                .rcu            = RCU_HEAD_INIT,
         },
         .file_lock      = __SPIN_LOCK_UNLOCKED(init_task.file_lock),
 };