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authorMark Brown <broonie@kernel.org>2019-01-29 12:04:54 +0000
committerMark Brown <broonie@kernel.org>2019-01-29 12:04:54 +0000
commitd7c26e63cf78fef01d66ae848184c6ee5f4b8bbf (patch)
tree3765745a38a7ae1a4a3a056dfc6c736e4c99271d /include/linux/backing-dev-defs.h
parenta8233b6c1972e1959cf84a021aeb61ddcd23cc26 (diff)
parentf17b5f06cb92ef2250513a1e154c47b78df07d40 (diff)
Merge tag 'v5.0-rc4' into asoc-5.1
Linux 5.0-rc4
Diffstat (limited to 'include/linux/backing-dev-defs.h')
-rw-r--r--include/linux/backing-dev-defs.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/backing-dev-defs.h b/include/linux/backing-dev-defs.h
index c31157135598..07e02d6df5ad 100644
--- a/include/linux/backing-dev-defs.h
+++ b/include/linux/backing-dev-defs.h
@@ -190,6 +190,7 @@ struct backing_dev_info {
struct radix_tree_root cgwb_tree; /* radix tree of active cgroup wbs */
struct rb_root cgwb_congested_tree; /* their congested states */
struct mutex cgwb_release_mutex; /* protect shutdown of wb structs */
+ struct rw_semaphore wb_switch_rwsem; /* no cgwb switch while syncing */
#else
struct bdi_writeback_congested *wb_congested;
#endif