102 lines
3.4 KiB
Diff
102 lines
3.4 KiB
Diff
From 98b417fc63467339b919ef6d322c1893d6d55f86 Mon Sep 17 00:00:00 2001
|
|
From: Lianbo Jiang <lijiang@redhat.com>
|
|
Date: Fri, 24 Dec 2021 18:56:35 +0800
|
|
Subject: [PATCH 02/12] Handle blk_mq_ctx member changes for kernels 5.16-rc1
|
|
and later
|
|
|
|
Kernel commit 9a14d6ce4135 ("block: remove debugfs blk_mq_ctx
|
|
dispatched/merged/completed attributes") removed the member
|
|
rq_dispatched and rq_completed from struct blk_mq_ctx. Without
|
|
the patch, "dev -d|-D" options will fail with the following error:
|
|
|
|
crash> dev -d
|
|
MAJOR GENDISK NAME REQUEST_QUEUE TOTAL ASYNC SYNC
|
|
|
|
dev: invalid structure member offset: blk_mq_ctx_rq_dispatched
|
|
FILE: dev.c LINE: 4229 FUNCTION: get_one_mctx_diskio()
|
|
|
|
Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
|
|
Signed-off-by: Kazuhito Hagio <k-hagio-ab@nec.com>
|
|
---
|
|
dev.c | 57 +++++++++++++++++++++++++++++++++++++++------------------
|
|
1 file changed, 39 insertions(+), 18 deletions(-)
|
|
|
|
diff --git a/dev.c b/dev.c
|
|
index effe789f38d8..a493e51ac95c 100644
|
|
--- a/dev.c
|
|
+++ b/dev.c
|
|
@@ -4246,6 +4246,10 @@ get_mq_diskio(unsigned long q, unsigned long *mq_count)
|
|
unsigned long mctx_addr;
|
|
struct diskio tmp;
|
|
|
|
+ if (INVALID_MEMBER(blk_mq_ctx_rq_dispatched) ||
|
|
+ INVALID_MEMBER(blk_mq_ctx_rq_completed))
|
|
+ return;
|
|
+
|
|
memset(&tmp, 0x00, sizeof(struct diskio));
|
|
|
|
readmem(q + OFFSET(request_queue_queue_ctx), KVADDR, &queue_ctx,
|
|
@@ -4475,24 +4479,41 @@ display_one_diskio(struct iter *i, unsigned long gendisk, ulong flags)
|
|
&& (io.read + io.write == 0))
|
|
return;
|
|
|
|
- fprintf(fp, "%s%s%s %s%s%s%s %s%5d%s%s%s%s%s",
|
|
- mkstring(buf0, 5, RJUST|INT_DEC, (char *)(unsigned long)major),
|
|
- space(MINSPACE),
|
|
- mkstring(buf1, VADDR_PRLEN, LJUST|LONG_HEX, (char *)gendisk),
|
|
- space(MINSPACE),
|
|
- mkstring(buf2, 10, LJUST, disk_name),
|
|
- space(MINSPACE),
|
|
- mkstring(buf3, VADDR_PRLEN <= 11 ? 11 : VADDR_PRLEN,
|
|
- LJUST|LONG_HEX, (char *)queue_addr),
|
|
- space(MINSPACE),
|
|
- io.read + io.write,
|
|
- space(MINSPACE),
|
|
- mkstring(buf4, 5, RJUST|INT_DEC,
|
|
- (char *)(unsigned long)io.read),
|
|
- space(MINSPACE),
|
|
- mkstring(buf5, 5, RJUST|INT_DEC,
|
|
- (char *)(unsigned long)io.write),
|
|
- space(MINSPACE));
|
|
+ if (use_mq_interface(queue_addr) &&
|
|
+ (INVALID_MEMBER(blk_mq_ctx_rq_dispatched) ||
|
|
+ INVALID_MEMBER(blk_mq_ctx_rq_completed)))
|
|
+ fprintf(fp, "%s%s%s %s%s%s%s %s%s%s",
|
|
+ mkstring(buf0, 5, RJUST|INT_DEC, (char *)(unsigned long)major),
|
|
+ space(MINSPACE),
|
|
+ mkstring(buf1, VADDR_PRLEN, LJUST|LONG_HEX, (char *)gendisk),
|
|
+ space(MINSPACE),
|
|
+ mkstring(buf2, 10, LJUST, disk_name),
|
|
+ space(MINSPACE),
|
|
+ mkstring(buf3, VADDR_PRLEN <= 11 ? 11 : VADDR_PRLEN,
|
|
+ LJUST|LONG_HEX, (char *)queue_addr),
|
|
+ space(MINSPACE),
|
|
+ mkstring(buf4, 17, RJUST, "(not supported)"),
|
|
+ space(MINSPACE));
|
|
+
|
|
+ else
|
|
+ fprintf(fp, "%s%s%s %s%s%s%s %s%5d%s%s%s%s%s",
|
|
+ mkstring(buf0, 5, RJUST|INT_DEC, (char *)(unsigned long)major),
|
|
+ space(MINSPACE),
|
|
+ mkstring(buf1, VADDR_PRLEN, LJUST|LONG_HEX, (char *)gendisk),
|
|
+ space(MINSPACE),
|
|
+ mkstring(buf2, 10, LJUST, disk_name),
|
|
+ space(MINSPACE),
|
|
+ mkstring(buf3, VADDR_PRLEN <= 11 ? 11 : VADDR_PRLEN,
|
|
+ LJUST|LONG_HEX, (char *)queue_addr),
|
|
+ space(MINSPACE),
|
|
+ io.read + io.write,
|
|
+ space(MINSPACE),
|
|
+ mkstring(buf4, 5, RJUST|INT_DEC,
|
|
+ (char *)(unsigned long)io.read),
|
|
+ space(MINSPACE),
|
|
+ mkstring(buf5, 5, RJUST|INT_DEC,
|
|
+ (char *)(unsigned long)io.write),
|
|
+ space(MINSPACE));
|
|
|
|
if (VALID_MEMBER(request_queue_in_flight)) {
|
|
if (!use_mq_interface(queue_addr)) {
|
|
--
|
|
2.20.1
|
|
|