linux-kernel - [PATCH 1/2] Remove preempt_enable/disable calls around sched

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20100612023409.14850.76309.stgit@austin.mtv.corp.google.com>
Date:	Fri, 11 Jun 2010 19:34:52 -0700
From:	Divyesh Shah <dpshah@...gle.com>
To:	jaxboe@...ionio.com
Cc:	peterz@...radead.org, mingo@...e.hu, piotr@...owicz.com,
	linux-kernel@...r.kernel.org, vgoyal@...hat.com
Subject: [PATCH 1/2] Remove preempt_enable/disable calls around sched_clock()

calls in the block layer. This was a temporary fix added.

Signed-off-by: Divyesh Shah <dpshah@...gle.com>
---
 include/linux/blkdev.h |    4 ----
 1 files changed, 0 insertions(+), 4 deletions(-)

diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 09a8402..ebe788e 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1218,16 +1218,12 @@ int kblockd_schedule_work(struct request_queue *q, struct work_struct *work);
  */
 static inline void set_start_time_ns(struct request *req)
 {
-	preempt_disable();
 	req->start_time_ns = sched_clock();
-	preempt_enable();
 }
 
 static inline void set_io_start_time_ns(struct request *req)
 {
-	preempt_disable();
 	req->io_start_time_ns = sched_clock();
-	preempt_enable();
 }
 
 static inline uint64_t rq_start_time_ns(struct request *req)

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/