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-rw-r--r--fs/fscache/cache.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/fs/fscache/cache.c b/fs/fscache/cache.c
index bbd102be91c4..25eac61f1c29 100644
--- a/fs/fscache/cache.c
+++ b/fs/fscache/cache.c
@@ -322,6 +322,26 @@ void fscache_end_cache_access(struct fscache_cache *cache, enum fscache_access_t
}
/**
+ * fscache_io_error - Note a cache I/O error
+ * @cache: The record describing the cache
+ *
+ * Note that an I/O error occurred in a cache and that it should no longer be
+ * used for anything. This also reports the error into the kernel log.
+ *
+ * See Documentation/filesystems/caching/backend-api.rst for a complete
+ * description.
+ */
+void fscache_io_error(struct fscache_cache *cache)
+{
+ if (fscache_set_cache_state_maybe(cache,
+ FSCACHE_CACHE_IS_ACTIVE,
+ FSCACHE_CACHE_GOT_IOERROR))
+ pr_err("Cache '%s' stopped due to I/O error\n",
+ cache->name);
+}
+EXPORT_SYMBOL(fscache_io_error);
+
+/**
* fscache_withdraw_cache - Withdraw a cache from the active service
* @cache: The cache cookie
*