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authorTejun Heo <htejun@gmail.com>2007-06-14 04:27:22 +0900
committerGreg Kroah-Hartman <gregkh@suse.de>2007-07-11 16:09:08 -0700
commit608e266a2d4e62c1b98c1c573064b6afe8c06a58 (patch)
tree73d670ab6c315b42273bc9d2731ec2b8e7c199af /fs/sysfs/symlink.c
parentf0b0af4792d751106e2003f96af76fa95e10c68d (diff)
downloadop-kernel-dev-608e266a2d4e62c1b98c1c573064b6afe8c06a58.zip
op-kernel-dev-608e266a2d4e62c1b98c1c573064b6afe8c06a58.tar.gz
sysfs: make kobj point to sysfs_dirent instead of dentry
As kobj sysfs dentries and inodes are gonna be made reclaimable, dentry can't be used as naming token for sysfs file/directory, replace kobj->dentry with kobj->sd. The only external interface change is shadow directory handling. All other changes are contained in kobj and sysfs. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'fs/sysfs/symlink.c')
-rw-r--r--fs/sysfs/symlink.c22
1 files changed, 10 insertions, 12 deletions
diff --git a/fs/sysfs/symlink.c b/fs/sysfs/symlink.c
index 45b62e2..43cc5222 100644
--- a/fs/sysfs/symlink.c
+++ b/fs/sysfs/symlink.c
@@ -66,7 +66,6 @@ static int sysfs_add_link(struct sysfs_dirent * parent_sd, const char * name,
*/
int sysfs_create_link(struct kobject * kobj, struct kobject * target, const char * name)
{
- struct dentry *dentry = NULL;
struct sysfs_dirent *parent_sd = NULL;
struct sysfs_dirent *target_sd = NULL;
int error = -EEXIST;
@@ -75,29 +74,28 @@ int sysfs_create_link(struct kobject * kobj, struct kobject * target, const char
if (!kobj) {
if (sysfs_mount && sysfs_mount->mnt_sb)
- dentry = sysfs_mount->mnt_sb->s_root;
+ parent_sd = sysfs_mount->mnt_sb->s_root->d_fsdata;
} else
- dentry = kobj->dentry;
+ parent_sd = kobj->sd;
- if (!dentry)
+ if (!parent_sd)
return -EFAULT;
- parent_sd = dentry->d_fsdata;
- /* target->dentry can go away beneath us but is protected with
+ /* target->sd can go away beneath us but is protected with
* kobj_sysfs_assoc_lock. Fetch target_sd from it.
*/
spin_lock(&kobj_sysfs_assoc_lock);
- if (target->dentry)
- target_sd = sysfs_get(target->dentry->d_fsdata);
+ if (target->sd)
+ target_sd = sysfs_get(target->sd);
spin_unlock(&kobj_sysfs_assoc_lock);
if (!target_sd)
return -ENOENT;
- mutex_lock(&dentry->d_inode->i_mutex);
- if (!sysfs_find_dirent(dentry->d_fsdata, name))
+ mutex_lock(&parent_sd->s_dentry->d_inode->i_mutex);
+ if (!sysfs_find_dirent(parent_sd, name))
error = sysfs_add_link(parent_sd, name, target_sd);
- mutex_unlock(&dentry->d_inode->i_mutex);
+ mutex_unlock(&parent_sd->s_dentry->d_inode->i_mutex);
if (error)
sysfs_put(target_sd);
@@ -114,7 +112,7 @@ int sysfs_create_link(struct kobject * kobj, struct kobject * target, const char
void sysfs_remove_link(struct kobject * kobj, const char * name)
{
- sysfs_hash_and_remove(kobj->dentry,name);
+ sysfs_hash_and_remove(kobj->sd, name);
}
static int sysfs_get_target_path(struct sysfs_dirent * parent_sd,
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