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authorTejun Heo <tj@kernel.org>2012-04-01 12:30:01 -0700
committerTejun Heo <tj@kernel.org>2012-04-01 12:55:00 -0700
commit959d851caa48829eb85cb85aa949fd6b4c5d5bc6 (patch)
tree3ba9c94ec346275fb44c4f0d1cd2537cdff8d811 /arch/arm/include/asm/compiler.h
parenta5567932fc926739e29e98487128080f40c61710 (diff)
parent48ddbe194623ae089cc0576e60363f2d2e85662a (diff)
Merge branch 'for-3.5' of ../cgroup into block/for-3.5/core-merged
cgroup/for-3.5 contains the following changes which blk-cgroup needs to proceed with the on-going cleanup. * Dynamic addition and removal of cftypes to make config/stat file handling modular for policies. * cgroup removal update to not wait for css references to drain to fix blkcg removal hang caused by cfq caching cfqgs. Pull in cgroup/for-3.5 into block/for-3.5/core. This causes the following conflicts in block/blk-cgroup.c. * 761b3ef50e "cgroup: remove cgroup_subsys argument from callbacks" conflicts with blkiocg_pre_destroy() addition and blkiocg_attach() removal. Resolved by removing @subsys from all subsys methods. * 676f7c8f84 "cgroup: relocate cftype and cgroup_subsys definitions in controllers" conflicts with ->pre_destroy() and ->attach() updates and removal of modular config. Resolved by dropping forward declarations of the methods and applying updates to the relocated blkio_subsys. * 4baf6e3325 "cgroup: convert all non-memcg controllers to the new cftype interface" builds upon the previous item. Resolved by adding ->base_cftypes to the relocated blkio_subsys. Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'arch/arm/include/asm/compiler.h')
-rw-r--r--arch/arm/include/asm/compiler.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/arm/include/asm/compiler.h b/arch/arm/include/asm/compiler.h
new file mode 100644
index 00000000000..8155db2f7fa
--- /dev/null
+++ b/arch/arm/include/asm/compiler.h
@@ -0,0 +1,15 @@
+#ifndef __ASM_ARM_COMPILER_H
+#define __ASM_ARM_COMPILER_H
+
+/*
+ * This is used to ensure the compiler did actually allocate the register we
+ * asked it for some inline assembly sequences. Apparently we can't trust
+ * the compiler from one version to another so a bit of paranoia won't hurt.
+ * This string is meant to be concatenated with the inline asm string and
+ * will cause compilation to stop on mismatch.
+ * (for details, see gcc PR 15089)
+ */
+#define __asmeq(x, y) ".ifnc " x "," y " ; .err ; .endif\n\t"
+
+
+#endif /* __ASM_ARM_COMPILER_H */