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| author | Tejun Heo <htejun@gmail.com> | 2007-08-02 21:38:03 +0900 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2007-10-12 14:51:03 -0700 |
| commit | 41fc1c27452e041a18e5141b8203ee0ea72bc483 (patch) | |
| tree | fc81138ca37182c25931818681630c90b018b127 /fs/sysfs/file.c | |
| parent | ff869de7bf5e76adffebd3a176c1c73bca7eddb7 (diff) | |
| download | lwn-41fc1c27452e041a18e5141b8203ee0ea72bc483.tar.gz lwn-41fc1c27452e041a18e5141b8203ee0ea72bc483.zip | |
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/file.c')
| -rw-r--r-- | fs/sysfs/file.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c index b21d11b46754..ea0e494d7d58 100644 --- a/fs/sysfs/file.c +++ b/fs/sysfs/file.c @@ -405,10 +405,8 @@ int sysfs_add_file(struct sysfs_dirent *dir_sd, const struct attribute *attr, sysfs_addrm_start(&acxt, dir_sd); - if (!sysfs_find_dirent(dir_sd, attr->name)) { + if (!sysfs_find_dirent(dir_sd, attr->name)) sysfs_add_one(&acxt, sd); - sysfs_link_sibling(sd); - } if (!sysfs_addrm_finish(&acxt)) { sysfs_put(sd); |