From: Dirk Henning Gerdes <mail@dirk-gerdes.de>
To: Tejun Heo <htejun@gmail.com>, Jens Axboe <axboe@suse.de>
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH linux-2.6-14-mm2] block: problem unloading I/O-Scheduler Module
Date: Thu, 17 Nov 2005 14:34:24 +0100 [thread overview]
Message-ID: <1132234464.4856.12.camel@localhost.localdomain> (raw)
In-Reply-To: <4357B10E.7010608@gmail.com>
If you have compiled an I/O-Scheduler as module you cannot unload it,
because of a memory-error.
Signed-off-by: Dirk Gerdes mail@dirk-gerdes.de
--- linux-2.6.14-mm2-pagecache/block/elevator.c 2005-11-17
12:37:10.000000000 +0100
+++ linux-2.6.14-mm2-pagecache_fix/block/elevator.c 2005-11-17
14:05:41.000000000 +0100
@@ -656,7 +656,7 @@
struct io_context *ioc = p->io_context;
struct cfq_io_context *cic;
- if (ioc->cic_root.rb_node != NULL) {
+ if (ioc != NULL && ioc->cic_root.rb_node != NULL) {
cic = rb_entry(rb_first(&ioc->cic_root), struct cfq_io_context,
rb_node);
cic->exit(ioc);
cic->dtor(ioc);
next prev parent reply other threads:[~2005-11-17 13:35 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-10-19 12:35 [PATCH linux-2.6-block:master 00/05] blk: generic dispatch queue Tejun Heo
2005-10-19 12:35 ` [PATCH linux-2.6-block:master 01/05] blk: implement " Tejun Heo
2005-10-20 10:00 ` Jens Axboe
2005-10-20 13:45 ` Tejun Heo
2005-10-20 14:04 ` Jens Axboe
2005-10-20 14:19 ` Tejun Heo
2005-10-19 12:35 ` [PATCH linux-2.6-block:master 02/05] blk: update ioscheds to use " Tejun Heo
2005-10-20 11:21 ` Jens Axboe
2005-10-20 13:51 ` Tejun Heo
2005-10-20 14:11 ` Jens Axboe
2005-10-20 14:35 ` Tejun Heo
2005-10-20 14:41 ` Jens Axboe
2005-10-20 15:00 ` Tejun Heo
2005-10-20 17:07 ` Jens Axboe
2005-10-20 17:31 ` Tejun Heo
2005-11-17 13:34 ` Dirk Henning Gerdes [this message]
2005-11-17 13:46 ` [PATCH linux-2.6-14-mm2] block: problem unloading I/O-Scheduler Module Jens Axboe
2005-10-19 12:35 ` [PATCH linux-2.6-block:master 03/05] blk: move last_merge handling into generic elevator code Tejun Heo
2005-10-20 11:26 ` Jens Axboe
2005-10-19 12:35 ` [PATCH linux-2.6-block:master 04/05] blk: remove last_merge handling from ioscheds Tejun Heo
2005-10-20 11:26 ` Jens Axboe
2005-10-19 12:35 ` [PATCH linux-2.6-block:master 05/05] blk: update biodoc Tejun Heo
2005-10-20 11:27 ` Jens Axboe
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