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authorChristoph Hellwig <hch@lst.de>2015-01-14 10:42:30 +0100
committerJens Axboe <axboe@fb.com>2015-01-20 14:02:54 -0700
commita7a2c680a2ad81b3181a335ee76e23d5195007ee (patch)
tree6755c100ab14f95ab78eba709f2de737b16e3d02 /fs/ocfs2/dlmfs
parentec6f34e5b552fb0a52e6aae1a5afbbb1605cc6cc (diff)
downloadop-kernel-dev-a7a2c680a2ad81b3181a335ee76e23d5195007ee.zip
op-kernel-dev-a7a2c680a2ad81b3181a335ee76e23d5195007ee.tar.gz
fs: deduplicate noop_backing_dev_info
hugetlbfs, kernfs and dlmfs can simply use noop_backing_dev_info instead of creating a local duplicate. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jan Kara <jack@suse.cz> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'fs/ocfs2/dlmfs')
-rw-r--r--fs/ocfs2/dlmfs/dlmfs.c16
1 files changed, 2 insertions, 14 deletions
diff --git a/fs/ocfs2/dlmfs/dlmfs.c b/fs/ocfs2/dlmfs/dlmfs.c
index 57c40e3..6000d30 100644
--- a/fs/ocfs2/dlmfs/dlmfs.c
+++ b/fs/ocfs2/dlmfs/dlmfs.c
@@ -390,12 +390,6 @@ clear_fields:
ip->ip_conn = NULL;
}
-static struct backing_dev_info dlmfs_backing_dev_info = {
- .name = "ocfs2-dlmfs",
- .ra_pages = 0, /* No readahead */
- .capabilities = BDI_CAP_NO_ACCT_AND_WRITEBACK,
-};
-
static struct inode *dlmfs_get_root_inode(struct super_block *sb)
{
struct inode *inode = new_inode(sb);
@@ -404,7 +398,7 @@ static struct inode *dlmfs_get_root_inode(struct super_block *sb)
if (inode) {
inode->i_ino = get_next_ino();
inode_init_owner(inode, NULL, mode);
- inode->i_mapping->backing_dev_info = &dlmfs_backing_dev_info;
+ inode->i_mapping->backing_dev_info = &noop_backing_dev_info;
inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
inc_nlink(inode);
@@ -428,7 +422,7 @@ static struct inode *dlmfs_get_inode(struct inode *parent,
inode->i_ino = get_next_ino();
inode_init_owner(inode, parent, mode);
- inode->i_mapping->backing_dev_info = &dlmfs_backing_dev_info;
+ inode->i_mapping->backing_dev_info = &noop_backing_dev_info;
inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
ip = DLMFS_I(inode);
@@ -643,10 +637,6 @@ static int __init init_dlmfs_fs(void)
int status;
int cleanup_inode = 0, cleanup_worker = 0;
- status = bdi_init(&dlmfs_backing_dev_info);
- if (status)
- return status;
-
dlmfs_inode_cache = kmem_cache_create("dlmfs_inode_cache",
sizeof(struct dlmfs_inode_private),
0, (SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT|
@@ -673,7 +663,6 @@ bail:
kmem_cache_destroy(dlmfs_inode_cache);
if (cleanup_worker)
destroy_workqueue(user_dlm_worker);
- bdi_destroy(&dlmfs_backing_dev_info);
} else
printk("OCFS2 User DLM kernel interface loaded\n");
return status;
@@ -693,7 +682,6 @@ static void __exit exit_dlmfs_fs(void)
rcu_barrier();
kmem_cache_destroy(dlmfs_inode_cache);
- bdi_destroy(&dlmfs_backing_dev_info);
}
MODULE_AUTHOR("Oracle");
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