Commit c40f9f6a authored by Thomas Weißschuh's avatar Thomas Weißschuh Committed by Jens Axboe
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block, bfq: constify sysfs attributes 



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: default avatarThomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/r/20250102-sysfs-const-attr-elevator-v1-3-9837d2058c60@weissschuh.net


Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 8686e1de

block/bfq-iosched.c

+1 −1
Original line number Diff line number Diff line
@@ -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),