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Diffstat (limited to 'drivers/misc/cxl/cxl.h')
-rw-r--r--drivers/misc/cxl/cxl.h5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/misc/cxl/cxl.h b/drivers/misc/cxl/cxl.h
index 6c722d96b775..79e60ec70bd3 100644
--- a/drivers/misc/cxl/cxl.h
+++ b/drivers/misc/cxl/cxl.h
@@ -418,8 +418,9 @@ struct cxl_afu {
struct dentry *debugfs;
struct mutex contexts_lock;
spinlock_t afu_cntl_lock;
- /* Used to block access to AFU config space while deconfigured */
- struct rw_semaphore configured_rwsem;
+
+ /* -1: AFU deconfigured/locked, >= 0: number of readers */
+ atomic_t configured_state;
/* AFU error buffer fields and bin attribute for sysfs */
u64 eb_len, eb_offset;