| Message ID | 20190208102220.21067-1-cgxu519@gmx.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | block: break loop when getting target major number in blkdev_show() | expand |
diff --git a/block/genhd.c b/block/genhd.c index 1dd8fd6613b8..908e3b4399a3 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -324,8 +324,10 @@ void blkdev_show(struct seq_file *seqf, off_t offset) mutex_lock(&block_class_lock); for (dp = major_names[major_to_index(offset)]; dp; dp = dp->next) - if (dp->major == offset) + if (dp->major == offset) { seq_printf(seqf, "%3d %s\n", dp->major, dp->name); + break; + } mutex_unlock(&block_class_lock); } #endif /* CONFIG_PROC_FS */
The entry in major_names table has unique major number, so there is no need to continue to search after getting target major number in blkdev_show(). Signed-off-by: Chengguang Xu <cgxu519@gmx.com> --- block/genhd.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)