From: Jan Kara <jack@suse.cz>
Date: Sun, 24 Apr 2016 04:56:05 +0000 (-0400)
Subject: ext4: remove EXT4_STATE_ORDERED_MODE
X-Git-Tag: v4.7-rc1~38^2~40
X-Git-Url: http://git.samba.org/samba.git/?p=sfrench%2Fcifs-2.6.git;a=commitdiff_plain;h=3957ef53a5033bd519b19cf375061be1929bdb5f

ext4: remove EXT4_STATE_ORDERED_MODE

This flag is just duplicating what ext4_should_order_data() tells you
and is used in a single place. Furthermore it doesn't reflect changes to
inode data journalling flag so it may be possibly misleading. Just
remove it.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
---

diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 349afebe21ee..f75e9ebd4ca2 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -1549,7 +1549,6 @@ enum {
 	EXT4_STATE_DIOREAD_LOCK,	/* Disable support for dio read
 					   nolocking */
 	EXT4_STATE_MAY_INLINE_DATA,	/* may have in-inode data */
-	EXT4_STATE_ORDERED_MODE,	/* data=ordered mode */
 	EXT4_STATE_EXT_PRECACHED,	/* extents have been precached */
 };
 
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 250c2df04a92..8ba46ad06aed 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -3540,10 +3540,7 @@ void ext4_set_aops(struct inode *inode)
 {
 	switch (ext4_inode_journal_mode(inode)) {
 	case EXT4_INODE_ORDERED_DATA_MODE:
-		ext4_set_inode_state(inode, EXT4_STATE_ORDERED_MODE);
-		break;
 	case EXT4_INODE_WRITEBACK_DATA_MODE:
-		ext4_clear_inode_state(inode, EXT4_STATE_ORDERED_MODE);
 		break;
 	case EXT4_INODE_JOURNAL_DATA_MODE:
 		inode->i_mapping->a_ops = &ext4_journalled_aops;
@@ -3636,7 +3633,7 @@ static int __ext4_block_zero_page_range(handle_t *handle,
 	} else {
 		err = 0;
 		mark_buffer_dirty(bh);
-		if (ext4_test_inode_state(inode, EXT4_STATE_ORDERED_MODE))
+		if (ext4_should_order_data(inode))
 			err = ext4_jbd2_file_inode(handle, inode);
 	}