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authorPeter Zijlstra <a.p.zijlstra@chello.nl>2007-10-16 23:25:46 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-17 08:42:45 -0700
commite0bf68ddec4f4f90e5871404be4f1854c17f3120 (patch)
tree36203a3558cbe26d698bed18be69b3822fb5eef2 /fs
parentdc62a30e274d003a4d08fb888f1520add4b21373 (diff)
downloadlinux-e0bf68ddec4f4f90e5871404be4f1854c17f3120.tar.bz2
mm: bdi init hooks
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>
Diffstat (limited to 'fs')
-rw-r--r--fs/char_dev.c1
-rw-r--r--fs/configfs/configfs_internal.h2
-rw-r--r--fs/configfs/inode.c8
-rw-r--r--fs/configfs/mount.c9
-rw-r--r--fs/fuse/inode.c9
-rw-r--r--fs/hugetlbfs/inode.c9
-rw-r--r--fs/nfs/client.c6
-rw-r--r--fs/ocfs2/dlm/dlmfs.c9
-rw-r--r--fs/ramfs/inode.c12
-rw-r--r--fs/sysfs/inode.c5
-rw-r--r--fs/sysfs/mount.c4
-rw-r--r--fs/sysfs/sysfs.h1
12 files changed, 72 insertions, 3 deletions
diff --git a/fs/char_dev.c b/fs/char_dev.c
index bbbf07baa145..c3bfa76765c4 100644
--- a/fs/char_dev.c
+++ b/fs/char_dev.c
@@ -545,6 +545,7 @@ static struct kobject *base_probe(dev_t dev, int *part, void *data)
void __init chrdev_init(void)
{
cdev_map = kobj_map_init(base_probe, &chrdevs_lock);
+ bdi_init(&directly_mappable_cdev_bdi);
}
diff --git a/fs/configfs/configfs_internal.h b/fs/configfs/configfs_internal.h
index 3b0185fdf9a4..cca98609aa7f 100644
--- a/fs/configfs/configfs_internal.h
+++ b/fs/configfs/configfs_internal.h
@@ -56,6 +56,8 @@ extern int configfs_is_root(struct config_item *item);
extern struct inode * configfs_new_inode(mode_t mode, struct configfs_dirent *);
extern int configfs_create(struct dentry *, int mode, int (*init)(struct inode *));
+extern int configfs_inode_init(void);
+extern void configfs_inode_exit(void);
extern int configfs_create_file(struct config_item *, const struct configfs_attribute *);
extern int configfs_make_dirent(struct configfs_dirent *,
diff --git a/fs/configfs/inode.c b/fs/configfs/inode.c
index dbd257d956c4..4c1ebff778ee 100644
--- a/fs/configfs/inode.c
+++ b/fs/configfs/inode.c
@@ -256,4 +256,12 @@ void configfs_hash_and_remove(struct dentry * dir, const char * name)
mutex_unlock(&dir->d_inode->i_mutex);
}
+int __init configfs_inode_init(void)
+{
+ return bdi_init(&configfs_backing_dev_info);
+}
+void __exit configfs_inode_exit(void)
+{
+ bdi_destroy(&configfs_backing_dev_info);
+}
diff --git a/fs/configfs/mount.c b/fs/configfs/mount.c
index 871b0cb61839..3bf0278ea843 100644
--- a/fs/configfs/mount.c
+++ b/fs/configfs/mount.c
@@ -154,8 +154,16 @@ static int __init configfs_init(void)
subsystem_unregister(&config_subsys);
kmem_cache_destroy(configfs_dir_cachep);
configfs_dir_cachep = NULL;
+ goto out;
}
+ err = configfs_inode_init();
+ if (err) {
+ unregister_filesystem(&configfs_fs_type);
+ subsystem_unregister(&config_subsys);
+ kmem_cache_destroy(configfs_dir_cachep);
+ configfs_dir_cachep = NULL;
+ }
out:
return err;
}
@@ -166,6 +174,7 @@ static void __exit configfs_exit(void)
subsystem_unregister(&config_subsys);
kmem_cache_destroy(configfs_dir_cachep);
configfs_dir_cachep = NULL;
+ configfs_inode_exit();
}
MODULE_AUTHOR("Oracle");
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 5448f625ab56..ca30b6ac03f0 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -401,6 +401,7 @@ static int fuse_show_options(struct seq_file *m, struct vfsmount *mnt)
static struct fuse_conn *new_conn(void)
{
struct fuse_conn *fc;
+ int err;
fc = kzalloc(sizeof(*fc), GFP_KERNEL);
if (fc) {
@@ -416,10 +417,17 @@ static struct fuse_conn *new_conn(void)
atomic_set(&fc->num_waiting, 0);
fc->bdi.ra_pages = (VM_MAX_READAHEAD * 1024) / PAGE_CACHE_SIZE;
fc->bdi.unplug_io_fn = default_unplug_io_fn;
+ err = bdi_init(&fc->bdi);
+ if (err) {
+ kfree(fc);
+ fc = NULL;
+ goto out;
+ }
fc->reqctr = 0;
fc->blocked = 1;
get_random_bytes(&fc->scramble_key, sizeof(fc->scramble_key));
}
+out:
return fc;
}
@@ -429,6 +437,7 @@ void fuse_conn_put(struct fuse_conn *fc)
if (fc->destroy_req)
fuse_request_free(fc->destroy_req);
mutex_destroy(&fc->inst_mutex);
+ bdi_destroy(&fc->bdi);
kfree(fc);
}
}
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 04598e12c489..0d9a2055ddee 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -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)
diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index a532ee12740a..70587f383f10 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -627,6 +627,7 @@ static void nfs_server_set_fsinfo(struct nfs_server *server, struct nfs_fsinfo *
if (server->rsize > NFS_MAX_FILE_IO_SIZE)
server->rsize = NFS_MAX_FILE_IO_SIZE;
server->rpages = (server->rsize + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
+
server->backing_dev_info.ra_pages = server->rpages * NFS_MAX_READAHEAD;
if (server->wsize > max_rpc_payload)
@@ -677,6 +678,10 @@ static int nfs_probe_fsinfo(struct nfs_server *server, struct nfs_fh *mntfh, str
goto out_error;
nfs_server_set_fsinfo(server, &fsinfo);
+ error = bdi_init(&server->backing_dev_info);
+ if (error)
+ goto out_error;
+
/* Get some general file system info */
if (server->namelen == 0) {
@@ -756,6 +761,7 @@ void nfs_free_server(struct nfs_server *server)
nfs_put_client(server->nfs_client);
nfs_free_iostats(server->io_stats);
+ bdi_destroy(&server->backing_dev_info);
kfree(server);
nfs_release_automount_timer();
dprintk("<-- nfs_free_server()\n");
diff --git a/fs/ocfs2/dlm/dlmfs.c b/fs/ocfs2/dlm/dlmfs.c
index 7418dc83de1c..1150412758ac 100644
--- a/fs/ocfs2/dlm/dlmfs.c
+++ b/fs/ocfs2/dlm/dlmfs.c
@@ -588,13 +588,17 @@ static int __init init_dlmfs_fs(void)
dlmfs_print_version();
+ 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|
SLAB_MEM_SPREAD),
dlmfs_init_once);
if (!dlmfs_inode_cache)
- return -ENOMEM;
+ goto bail;
cleanup_inode = 1;
user_dlm_worker = create_singlethread_workqueue("user_dlm");
@@ -611,6 +615,7 @@ 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;
@@ -624,6 +629,8 @@ static void __exit exit_dlmfs_fs(void)
destroy_workqueue(user_dlm_worker);
kmem_cache_destroy(dlmfs_inode_cache);
+
+ bdi_destroy(&dlmfs_backing_dev_info);
}
MODULE_AUTHOR("Oracle");
diff --git a/fs/ramfs/inode.c b/fs/ramfs/inode.c
index ef2b46d099ff..8428d5b2711d 100644
--- a/fs/ramfs/inode.c
+++ b/fs/ramfs/inode.c
@@ -223,7 +223,17 @@ module_exit(exit_ramfs_fs)
int __init init_rootfs(void)
{
- return register_filesystem(&rootfs_fs_type);
+ int err;
+
+ err = bdi_init(&ramfs_backing_dev_info);
+ if (err)
+ return err;
+
+ err = register_filesystem(&rootfs_fs_type);
+ if (err)
+ bdi_destroy(&ramfs_backing_dev_info);
+
+ return err;
}
MODULE_LICENSE("GPL");
diff --git a/fs/sysfs/inode.c b/fs/sysfs/inode.c
index c4ef945d39c8..d9262f74f94e 100644
--- a/fs/sysfs/inode.c
+++ b/fs/sysfs/inode.c
@@ -37,6 +37,11 @@ static const struct inode_operations sysfs_inode_operations ={
.setattr = sysfs_setattr,
};
+int __init sysfs_inode_init(void)
+{
+ return bdi_init(&sysfs_backing_dev_info);
+}
+
int sysfs_setattr(struct dentry * dentry, struct iattr * iattr)
{
struct inode * inode = dentry->d_inode;
diff --git a/fs/sysfs/mount.c b/fs/sysfs/mount.c
index c76c540be3c8..74168266cd59 100644
--- a/fs/sysfs/mount.c
+++ b/fs/sysfs/mount.c
@@ -92,6 +92,10 @@ int __init sysfs_init(void)
if (!sysfs_dir_cachep)
goto out;
+ err = sysfs_inode_init();
+ if (err)
+ goto out_err;
+
err = register_filesystem(&sysfs_fs_type);
if (!err) {
sysfs_mount = kern_mount(&sysfs_fs_type);
diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h
index f0326f281d1c..f8417988f6b0 100644
--- a/fs/sysfs/sysfs.h
+++ b/fs/sysfs/sysfs.h
@@ -146,6 +146,7 @@ static inline void sysfs_put(struct sysfs_dirent *sd)
struct inode *sysfs_get_inode(struct sysfs_dirent *sd);
int sysfs_setattr(struct dentry *dentry, struct iattr *iattr);
int sysfs_hash_and_remove(struct sysfs_dirent *dir_sd, const char *name);
+int sysfs_inode_init(void);
/*
* file.c