diff options
| author | Christoph Hellwig <hch@lst.de> | 2015-01-14 10:42:30 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2015-01-20 14:02:54 -0700 |
| commit | a7a2c680a2ad81b3181a335ee76e23d5195007ee (patch) | |
| tree | 6755c100ab14f95ab78eba709f2de737b16e3d02 /fs/hugetlbfs | |
| parent | ec6f34e5b552fb0a52e6aae1a5afbbb1605cc6cc (diff) | |
| download | lwn-a7a2c680a2ad81b3181a335ee76e23d5195007ee.tar.gz lwn-a7a2c680a2ad81b3181a335ee76e23d5195007ee.zip | |
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/hugetlbfs')
| -rw-r--r-- | fs/hugetlbfs/inode.c | 14 |
1 files changed, 1 insertions, 13 deletions
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c index 5eba47f593f8..de7c95c7d840 100644 --- a/fs/hugetlbfs/inode.c +++ b/fs/hugetlbfs/inode.c @@ -62,12 +62,6 @@ static inline struct hugetlbfs_inode_info *HUGETLBFS_I(struct inode *inode) return container_of(inode, struct hugetlbfs_inode_info, vfs_inode); } -static struct backing_dev_info hugetlbfs_backing_dev_info = { - .name = "hugetlbfs", - .ra_pages = 0, /* No readahead */ - .capabilities = BDI_CAP_NO_ACCT_AND_WRITEBACK, -}; - int sysctl_hugetlb_shm_group; enum { @@ -498,7 +492,7 @@ static struct inode *hugetlbfs_get_inode(struct super_block *sb, lockdep_set_class(&inode->i_mapping->i_mmap_rwsem, &hugetlbfs_i_mmap_rwsem_key); inode->i_mapping->a_ops = &hugetlbfs_aops; - inode->i_mapping->backing_dev_info =&hugetlbfs_backing_dev_info; + inode->i_mapping->backing_dev_info = &noop_backing_dev_info; inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; inode->i_mapping->private_data = resv_map; info = HUGETLBFS_I(inode); @@ -1032,10 +1026,6 @@ static int __init init_hugetlbfs_fs(void) return -ENOTSUPP; } - error = bdi_init(&hugetlbfs_backing_dev_info); - if (error) - return error; - error = -ENOMEM; hugetlbfs_inode_cachep = kmem_cache_create("hugetlbfs_inode_cache", sizeof(struct hugetlbfs_inode_info), @@ -1071,7 +1061,6 @@ static int __init init_hugetlbfs_fs(void) out: kmem_cache_destroy(hugetlbfs_inode_cachep); out2: - bdi_destroy(&hugetlbfs_backing_dev_info); return error; } @@ -1091,7 +1080,6 @@ static void __exit exit_hugetlbfs_fs(void) for_each_hstate(h) kern_unmount(hugetlbfs_vfsmount[i++]); unregister_filesystem(&hugetlbfs_fs_type); - bdi_destroy(&hugetlbfs_backing_dev_info); } module_init(init_hugetlbfs_fs) |