From c40f9f6ac59f949b6cbf10903fa2aae76efffa20 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Thomas=20Wei=C3=9Fschuh?= Date: Thu, 2 Jan 2025 13:01:33 +0100 Subject: [PATCH] block, bfq: constify sysfs attributes MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit The elevator core now allows instances of 'struct elv_fs_entry' to be moved into read-only memory. Make use of that to protect them against accidental or malicious modifications. Signed-off-by: Thomas Weißschuh Link: https://lore.kernel.org/r/20250102-sysfs-const-attr-elevator-v1-3-9837d2058c60@weissschuh.net Signed-off-by: Jens Axboe --- block/bfq-iosched.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/block/bfq-iosched.c b/block/bfq-iosched.c index 95dd7b795935..068c63e95738 100644 --- a/block/bfq-iosched.c +++ b/block/bfq-iosched.c @@ -7614,7 +7614,7 @@ static ssize_t bfq_low_latency_store(struct elevator_queue *e, #define BFQ_ATTR(name) \ __ATTR(name, 0644, bfq_##name##_show, bfq_##name##_store) -static struct elv_fs_entry bfq_attrs[] = { +static const struct elv_fs_entry bfq_attrs[] = { BFQ_ATTR(fifo_expire_sync), BFQ_ATTR(fifo_expire_async), BFQ_ATTR(back_seek_max), -- 2.50.1