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mm: bdi init hooks

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provide BDI constructor/destructor hooks

[akpm@linux-foundation.org: compile fix]
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Peter Zijlstra 2007-10-16 23:25:46 -07:00 • committed by Linus Torvalds
parent dc62a30e27
commit e0bf68ddec
19 changed files with 131 additions and 7 deletions
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9
fs/hugetlbfs/inode.c
View file

@ -974,11 +974,15 @@ static int __init init_hugetlbfs_fs(void)
int error;
struct vfsmount *vfsmount;
error = bdi_init(&hugetlbfs_backing_dev_info);
if (error)
return error;
hugetlbfs_inode_cachep = kmem_cache_create("hugetlbfs_inode_cache",
sizeof(struct hugetlbfs_inode_info),
0, 0, init_once);
if (hugetlbfs_inode_cachep == NULL)
return -ENOMEM;
goto out2;
error = register_filesystem(&hugetlbfs_fs_type);
if (error)
@ -996,6 +1000,8 @@ static int __init init_hugetlbfs_fs(void)
out:
if (error)
kmem_cache_destroy(hugetlbfs_inode_cachep);
out2:
bdi_destroy(&hugetlbfs_backing_dev_info);
return error;
}
@ -1003,6 +1009,7 @@ static void __exit exit_hugetlbfs_fs(void)
{
kmem_cache_destroy(hugetlbfs_inode_cachep);
unregister_filesystem(&hugetlbfs_fs_type);
bdi_destroy(&hugetlbfs_backing_dev_info);
}
module_init(init_hugetlbfs_fs)