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authorJens Axboe <jaxboe@fusionio.com>2011-04-05 23:51:48 +0200
committerJens Axboe <jaxboe@fusionio.com>2011-04-05 23:51:48 +0200
commit7dcda1c96d7c643101d4a05579ef4512a4baa7ef (patch)
tree62051d63c47a3df7381cdc294815e79da5ebdc93 /fs/inode.c
parent929e27252e8ca69363f81f26af5eaba62cb4c572 (diff)
downloadlwn-7dcda1c96d7c643101d4a05579ef4512a4baa7ef.tar.gz
lwn-7dcda1c96d7c643101d4a05579ef4512a4baa7ef.zip
fs: export empty_aops
With the ->sync_page() hook gone, we have a few users that add their own static address_space_operations without any functions defined. fs/inode.c already has an empty_aops that it uses for init purposes. Lets export that and use it in the places where an otherwise empty aops was defined. Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'fs/inode.c')
-rw-r--r--fs/inode.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/fs/inode.c b/fs/inode.c
index 5f4e11aaeb5c..33c963d08ab4 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -125,6 +125,14 @@ __cacheline_aligned_in_smp DEFINE_SPINLOCK(inode_wb_list_lock);
static DECLARE_RWSEM(iprune_sem);
/*
+ * Empty aops. Can be used for the cases where the user does not
+ * define any of the address_space operations.
+ */
+const struct address_space_operations empty_aops = {
+};
+EXPORT_SYMBOL(empty_aops);
+
+/*
* Statistics gathering..
*/
struct inodes_stat_t inodes_stat;
@@ -176,7 +184,6 @@ int proc_nr_inodes(ctl_table *table, int write,
*/
int inode_init_always(struct super_block *sb, struct inode *inode)
{
- static const struct address_space_operations empty_aops;
static const struct inode_operations empty_iops;
static const struct file_operations empty_fops;
struct address_space *const mapping = &inode->i_data;