From 26d3bdb57ec3fa56eaf8d2e74b5d488e55f43013 Mon Sep 17 00:00:00 2001 From: John Garry Date: Fri, 19 Jul 2024 11:29:08 +0000 Subject: block: Catch possible entries missing from alloc_policy_name[] Make BLK_TAG_ALLOC_x an enum and add a "max" entry. Add a BUILD_BUG_ON() call to ensure that we are not missing entries in hctx_flag_name[]. Reviewed-by: Bart Van Assche Signed-off-by: John Garry Link: https://lore.kernel.org/r/20240719112912.3830443-12-john.g.garry@oracle.com Signed-off-by: Jens Axboe --- include/linux/blk-mq.h | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h index 27241009c8f9..a64a50a0edf7 100644 --- a/include/linux/blk-mq.h +++ b/include/linux/blk-mq.h @@ -278,8 +278,12 @@ enum blk_eh_timer_return { BLK_EH_RESET_TIMER, }; -#define BLK_TAG_ALLOC_FIFO 0 /* allocate starting from 0 */ -#define BLK_TAG_ALLOC_RR 1 /* allocate starting from last allocated tag */ +/* Keep alloc_policy_name[] in sync with the definitions below */ +enum { + BLK_TAG_ALLOC_FIFO, /* allocate starting from 0 */ + BLK_TAG_ALLOC_RR, /* allocate starting from last allocated tag */ + BLK_TAG_ALLOC_MAX +}; /** * struct blk_mq_hw_ctx - State for a hardware queue facing the hardware -- cgit v1.2.3