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-rw-r--r--debian/patches-rt/0055-md-disable-bcache.patch41
1 files changed, 41 insertions, 0 deletions
diff --git a/debian/patches-rt/0055-md-disable-bcache.patch b/debian/patches-rt/0055-md-disable-bcache.patch
new file mode 100644
index 000000000..f2de464c8
--- /dev/null
+++ b/debian/patches-rt/0055-md-disable-bcache.patch
@@ -0,0 +1,41 @@
+From 660157bd8a977bb04e9ef58df7270b51f7e315e1 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 055/347] md: disable bcache
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.246-rt110.tar.xz
+
+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(+)
+
+diff --git a/drivers/md/bcache/Kconfig b/drivers/md/bcache/Kconfig
+index f6e0a8b3a61e..18c03d79a442 100644
+--- 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
+ select CRC64
+ help
+ Allows a block device to be used as cache for other devices; uses
+--
+2.36.1
+