[PATCH] include/jbd: add missing ifdef CONFIG_BLOCK

[Xiong Zhou]

From: Xiong Zhou <jencce.kernel@xxxxxxxxx>

In jbd{2}.h, BH_PrivateStart is used in the define of enum jbd_state_bits,
which is defined in buffer_head.h under ifdef CONFIG_BLOCK. In these
two headers, BUFFER_FNS and TAS_BUFFER_FNS and jbd_common.h refer to
enum jbd_state_bits, so they should under ifdef CONFIG_BLOCK.

Signed-off-by: Xiong Zhou <jencce.kernel@xxxxxxxxx>
---
 include/linux/jbd.h  |    2 ++
 include/linux/jbd2.h |    2 ++
 2 files changed, 4 insertions(+)

diff --git a/include/linux/jbd.h b/include/linux/jbd.h
index 8685d1b..e9dcf47 100644
--- a/include/linux/jbd.h
+++ b/include/linux/jbd.h
@@ -244,6 +244,7 @@ typedef struct journal_superblock_s
 #include <linux/fs.h>
 #include <linux/sched.h>
 
+#ifdef CONFIG_BLOCK
 enum jbd_state_bits {
 	BH_JBD			/* Has an attached ext3 journal_head */
 	  = BH_PrivateStart,
@@ -269,6 +270,7 @@ TAS_BUFFER_FNS(RevokeValid, revokevalid)
 BUFFER_FNS(Freed, freed)
 
 #include <linux/jbd_common.h>
+#endif
 
 #define J_ASSERT(assert)	BUG_ON(!(assert))
 
diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
index d5b50a1..6214b80 100644
--- a/include/linux/jbd2.h
+++ b/include/linux/jbd2.h
@@ -298,6 +298,7 @@ typedef struct journal_superblock_s
 #include <linux/fs.h>
 #include <linux/sched.h>
 
+#ifdef CONFIG_BLOCK
 enum jbd_state_bits {
 	BH_JBD			/* Has an attached ext3 journal_head */
 	  = BH_PrivateStart,
@@ -326,6 +327,7 @@ BUFFER_FNS(Shadow, shadow)
 BUFFER_FNS(Verified, verified)
 
 #include <linux/jbd_common.h>
+#endif
 
 #define J_ASSERT(assert)	BUG_ON(!(assert))
 
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