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block: mq-deadline: Constify sysfs attributes

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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 <linux@weissschuh.net>
Link: https://lore.kernel.org/r/20250102-sysfs-const-attr-elevator-v1-2-9837d2058c60@weissschuh.net
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Thomas Weißschuh 2025-01-02 13:01:32 +01:00 • committed by Jens Axboe
parent 044792cda0
commit 8686e1deda
1 changed files with 1 additions and 1 deletions
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block/mq-deadline.c
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@ -834,7 +834,7 @@ STORE_INT(deadline_fifo_batch_store, &dd->fifo_batch, 0, INT_MAX);
#define DD_ATTR(name) \
__ATTR(name, 0644, deadline_##name##_show, deadline_##name##_store)
static struct elv_fs_entry deadline_attrs[] = {
static const struct elv_fs_entry deadline_attrs[] = {
DD_ATTR(read_expire),
DD_ATTR(write_expire),
DD_ATTR(writes_starved),