applied: https://github.com/crash-utility/crash/commit/4740b8891abf17ff2e957f85b8fa157b1fe0608f
On Tue, Dec 23, 2025 at 2:45 PM Lianbo Jiang <[email protected]> wrote: > > Hi, Tao > > Thank you for the update. For v2: Ack > > > Lianbo > > On 12/15/25 5:59 AM, [email protected] wrote: > > Date: Mon, 15 Dec 2025 10:49:30 +1300 > > From: Tao Liu<[email protected]> > > Subject: [Crash-utility] [PATCH v2] Resolve BLK_MQ_F_TAG_HCTX_SHARED > > at runtime > > To:[email protected] > > Cc: Tao Liu<[email protected]> > > Message-ID:<[email protected]> > > Content-Type: text/plain; charset="US-ASCII"; x-default=true > > > > Though upstream kernel have defined BLK_MQ_F_TAG_HCTX_SHARED > > as (1 << 3), the value might be set different, e.g. [1]. In > > this patch, we will use enumerator_value() to get its value > > at runtime, to make the code more adaptable. > > > > [1]:https://gitlab.com/redhat/centos-stream/src/kernel/centos-stream-8/-/blob/c8s/include/linux/blk-mq.h?ref_type=heads#L321 > > > > Signed-off-by: Tao Liu<[email protected]> > > --- > > dev.c | 5 +++-- > > 1 file changed, 3 insertions(+), 2 deletions(-) > > > > diff --git a/dev.c b/dev.c > > index 27318e8..1332b0e 100644 > > --- a/dev.c > > +++ b/dev.c > > @@ -4326,11 +4326,11 @@ struct bt_iter_data { > > #define MQ_RQ_IN_FLIGHT 1 > > #define REQ_OP_BITS 8 > > #define REQ_OP_MASK ((1 << REQ_OP_BITS) - 1) > > -#define BLK_MQ_F_TAG_HCTX_SHARED (1 << 3) > > +static long blk_hctx_shared = 0; > > > > static bool blk_mq_is_shared_tags(unsigned int flags) > > { > > - return flags & BLK_MQ_F_TAG_HCTX_SHARED; > > + return flags & blk_hctx_shared; > > } > > > > static uint op_is_write(uint op) > > @@ -4952,6 +4952,7 @@ void diskio_init(void) > > MEMBER_OFFSET_INIT(request_queue_tag_set, "request_queue", "tag_set"); > > MEMBER_OFFSET_INIT(blk_mq_tag_set_flags, "blk_mq_tag_set", "flags"); > > MEMBER_OFFSET_INIT(blk_mq_tag_set_shared_tags, "blk_mq_tag_set", > > "shared_tags"); > > + enumerator_value("BLK_MQ_F_TAG_HCTX_SHARED", &blk_hctx_shared); > > > > dt->flags |= DISKIO_INIT; > > } > > -- 2.47.0 > -- Crash-utility mailing list -- [email protected] To unsubscribe send an email to [email protected] https://${domain_name}/admin/lists/devel.lists.crash-utility.osci.io/ Contribution Guidelines: https://github.com/crash-utility/crash/wiki
