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authorEric W. Biederman <ebiederm@xmission.com>2010-03-30 11:31:28 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2010-05-21 09:37:31 -0700
commit746edb7ae8a1abdd39be2b28c03aa073183340db (patch)
tree6e2bbfd8f42c11c95a4f63623a96317eb00efe77 /include/linux/sysfs.h
parentaf10ec77b43335ab4e473e4087d85979caf02d65 (diff)
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sysfs: Implement sysfs_delete_link
When removing a symlink sysfs_remove_link does not provide enough information to figure out which tagged directory the symlink falls in. So I need sysfs_delete_link which is passed the target of the symlink to delete. sysfs_rename_link is updated to call sysfs_delete_link instead of sysfs_remove_link as we have all of the information necessary and the callers are interesting. Both of these functions now have enough information to find a symlink in a tagged directory. The only restriction is that they must be called before the target kobject is renamed or deleted. If they are called later I loose track of which tag the target kobject was marked with and can no longer find the old symlink to remove it. This patch was split from an earlier patch. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include/linux/sysfs.h')
-rw-r--r--include/linux/sysfs.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index 1885d21b0c8..976c4664b21 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -155,6 +155,9 @@ void sysfs_remove_link(struct kobject *kobj, const char *name);
int sysfs_rename_link(struct kobject *kobj, struct kobject *target,
const char *old_name, const char *new_name);
+void sysfs_delete_link(struct kobject *dir, struct kobject *targ,
+ const char *name);
+
int __must_check sysfs_create_group(struct kobject *kobj,
const struct attribute_group *grp);
int sysfs_update_group(struct kobject *kobj,
@@ -269,6 +272,11 @@ static inline int sysfs_rename_link(struct kobject *k, struct kobject *t,
return 0;
}
+static inline void sysfs_delete_link(struct kobject *k, struct kobject *t,
+ const char *name)
+{
+}
+
static inline int sysfs_create_group(struct kobject *kobj,
const struct attribute_group *grp)
{