From 102a0743326a03cd1a1202ceda21e175b7d3575c Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:20:52 +0000
Subject: [PATCH] add new system file
---
kernel/block/blk-mq-sysfs.c | 11 +++++++++--
1 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/kernel/block/blk-mq-sysfs.c b/kernel/block/blk-mq-sysfs.c
index 7b52e76..f0bc339 100644
--- a/kernel/block/blk-mq-sysfs.c
+++ b/kernel/block/blk-mq-sysfs.c
@@ -242,7 +242,7 @@
{
struct request_queue *q = hctx->queue;
struct blk_mq_ctx *ctx;
- int i, ret;
+ int i, j, ret;
if (!hctx->nr_ctx)
return 0;
@@ -254,9 +254,16 @@
hctx_for_each_ctx(hctx, ctx, i) {
ret = kobject_add(&ctx->kobj, &hctx->kobj, "cpu%u", ctx->cpu);
if (ret)
- break;
+ goto out;
}
+ return 0;
+out:
+ hctx_for_each_ctx(hctx, ctx, j) {
+ if (j < i)
+ kobject_del(&ctx->kobj);
+ }
+ kobject_del(&hctx->kobj);
return ret;
}
--
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