| From a94d9b765f54e3ab9d11156c7a899c71a9185f1c Mon Sep 17 00:00:00 2001 |
| From: Sebastian Andrzej Siewior <bigeasy@linutronix.de> |
| Date: Thu, 29 Aug 2013 11:48:57 +0200 |
| Subject: [PATCH] md: disable bcache |
| MIME-Version: 1.0 |
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| Content-Transfer-Encoding: 8bit |
| |
| It uses anon semaphores |
| |drivers/md/bcache/request.c: In function ‘cached_dev_write_complete’: |
| |drivers/md/bcache/request.c:1007:2: error: implicit declaration of function ‘up_read_non_owner’ [-Werror=implicit-function-declaration] |
| | up_read_non_owner(&dc->writeback_lock); |
| | ^ |
| |drivers/md/bcache/request.c: In function ‘request_write’: |
| |drivers/md/bcache/request.c:1033:2: error: implicit declaration of function ‘down_read_non_owner’ [-Werror=implicit-function-declaration] |
| | down_read_non_owner(&dc->writeback_lock); |
| | ^ |
| |
| either we get rid of those or we have to introduce them… |
| |
| Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> |
| --- |
| drivers/md/bcache/Kconfig | 1 + |
| 1 file changed, 1 insertion(+) |
| |
| --- a/drivers/md/bcache/Kconfig |
| +++ b/drivers/md/bcache/Kconfig |
| @@ -1,6 +1,7 @@ |
| |
| config BCACHE |
| tristate "Block device as cache" |
| + depends on !PREEMPT_RT_FULL |
| ---help--- |
| Allows a block device to be used as cache for other devices; uses |
| a btree for indexing and the layout is optimized for SSDs. |
