Rename struct file->f_ep_lock

This lock moves out of the CONFIG_EPOLL ifdef and becomes f_lock.  For now,
epoll remains the only user, but a future patch will use it to protect
f_flags as well.

Cc: Davide Libenzi <davidel@xmailserver.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

2 files changed, 1 insertions, 2 deletions

diff --git a/include/linux/eventpoll.h b/include/linux/eventpoll.h
index f1e1d3c47125..f6856a5a1d4b 100644
--- a/include/linux/eventpoll.h
+++ b/include/linux/eventpoll.h
@@ -61,7 +61,6 @@ struct file;
 static inline void eventpoll_init_file(struct file *file)
 {
         INIT_LIST_HEAD(&file->f_ep_links);
-        spin_lock_init(&file->f_ep_lock);
 }
 
 
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 92734c0012e6..2011600d12c7 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -848,6 +848,7 @@ struct file {
 #define f_dentry        f_path.dentry
 #define f_vfsmnt        f_path.mnt
         const struct file_operations    *f_op;
+        spinlock_t              f_lock;  /* f_ep_links */
         atomic_long_t           f_count;
         unsigned int            f_flags;
         fmode_t                 f_mode;
@@ -866,7 +867,6 @@ struct file {
 #ifdef CONFIG_EPOLL
         /* Used by fs/eventpoll.c to link all the hooks to this file */
         struct list_head        f_ep_links;
-        spinlock_t              f_ep_lock;
 #endif /* #ifdef CONFIG_EPOLL */
         struct address_space    *f_mapping;
 #ifdef CONFIG_DEBUG_WRITECOUNT