add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/md/dm-exception-store.h
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@@ -11,6 +11,7 @@
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 #define _LINUX_DM_EXCEPTION_STORE
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 #include <linux/blkdev.h>
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+#include <linux/list_bl.h>
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 #include <linux/device-mapper.h>
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 /*
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@@ -27,7 +28,7 @@
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  * chunk within the device.
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  */
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 struct dm_exception {
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-	struct list_head hash_list;
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+	struct hlist_bl_node hash_list;
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 	chunk_t old_chunk;
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 	chunk_t new_chunk;
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@@ -135,9 +136,8 @@
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 /*
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  * Funtions to manipulate consecutive chunks
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  */
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-#  if defined(CONFIG_LBDAF) || (BITS_PER_LONG == 64)
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-#    define DM_CHUNK_CONSECUTIVE_BITS 8
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-#    define DM_CHUNK_NUMBER_BITS 56
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+#define DM_CHUNK_CONSECUTIVE_BITS 8
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+#define DM_CHUNK_NUMBER_BITS 56
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 static inline chunk_t dm_chunk_number(chunk_t chunk)
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 {
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@@ -162,29 +162,6 @@
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 	e->new_chunk -= (1ULL << DM_CHUNK_NUMBER_BITS);
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 }
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-
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-#  else
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-#    define DM_CHUNK_CONSECUTIVE_BITS 0
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-
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-static inline chunk_t dm_chunk_number(chunk_t chunk)
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-{
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-	return chunk;
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-}
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-
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-static inline unsigned dm_consecutive_chunk_count(struct dm_exception *e)
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-{
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-	return 0;
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-}
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-
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-static inline void dm_consecutive_chunk_count_inc(struct dm_exception *e)
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-{
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-}
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-
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-static inline void dm_consecutive_chunk_count_dec(struct dm_exception *e)
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-{
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-}
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-
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-#  endif
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 /*
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  * Return the number of sectors in the device.