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authorTejun Heo <htejun@gmail.com>2007-08-02 21:38:03 +0900
committerGreg Kroah-Hartman <gregkh@suse.de>2007-10-12 14:51:03 -0700
commit41fc1c27452e041a18e5141b8203ee0ea72bc483 (patch)
treefc81138ca37182c25931818681630c90b018b127 /fs/sysfs/symlink.c
parentff869de7bf5e76adffebd3a176c1c73bca7eddb7 (diff)
downloadlinux-41fc1c27452e041a18e5141b8203ee0ea72bc483.tar.gz
sysfs: make sysfs_add/remove_one() call link/unlink_sibling() implictly
When adding or removing a sysfs_dirent, the user used to be required
to call link/unlink separately.  It was for two reasons - code looked
like that before sysfs_addrm_cxt conversion and to avoid looping
through parent_sd->children list twice during removal.

Performance optimization during removal just isn't worth it.  Make
sysfs_add/remove_one() call sysfs_link/unlink_sibing() implicitly.
This makes code simpler albeit slightly less efficient.  This change
doesn't introduce any noticeable behavior change.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

Diffstat (limited to 'fs/sysfs/symlink.c')
-rw-r--r--fs/sysfs/symlink.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/fs/sysfs/symlink.c b/fs/sysfs/symlink.c
index 90484533801e..c129f307936a 100644
--- a/fs/sysfs/symlink.c
+++ b/fs/sysfs/symlink.c
@@ -92,10 +92,8 @@ int sysfs_create_link(struct kobject * kobj, struct kobject * target, const char
 
 	sysfs_addrm_start(&acxt, parent_sd);
 
-	if (!sysfs_find_dirent(parent_sd, name)) {
+	if (!sysfs_find_dirent(parent_sd, name))
 		sysfs_add_one(&acxt, sd);
-		sysfs_link_sibling(sd);
-	}
 
 	if (!sysfs_addrm_finish(&acxt)) {
 		error = -EEXIST;