[PATCH v4 08/12] ext4: use the new ->i_state accessors

[Mateusz Guzik <mjguzik@gmail.com>]

Change generated with coccinelle and fixed up by hand as appropriate.

Signed-off-by: Mateusz Guzik <mjguzik@gmail.com>
---

cheat sheet:
Suppose flags I_A and I_B are to be handled, then if ->i_lock is held:

state = inode->i_state          => state = inode_state_read(inode)
inode->i_state |= (I_A | I_B)   => inode_state_add(inode, I_A | I_B)
inode->i_state &= ~(I_A | I_B)  => inode_state_del(inode, I_A | I_B)
inode->i_state = I_A | I_B      => inode_state_set(inode, I_A | I_B)

If ->i_lock is not held or only held conditionally, add "_once"
suffix for the read routine or "_raw" for the rest:

state = inode->i_state          => state = inode_state_read_once(inode)
inode->i_state |= (I_A | I_B)   => inode_state_add_raw(inode, I_A | I_B)
inode->i_state &= ~(I_A | I_B)  => inode_state_del_raw(inode, I_A | I_B)
inode->i_state = I_A | I_B      => inode_state_set_raw(inode, I_A | I_B)

 fs/ext4/inode.c  | 10 +++++-----
 fs/ext4/orphan.c |  4 ++--
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index ed54c4d0f2f9..f5b652613f2e 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -425,7 +425,7 @@ void ext4_check_map_extents_env(struct inode *inode)
 	if (!S_ISREG(inode->i_mode) ||
 	    IS_NOQUOTA(inode) || IS_VERITY(inode) ||
 	    is_special_ino(inode->i_sb, inode->i_ino) ||
-	    (inode->i_state & (I_FREEING | I_WILL_FREE | I_NEW)) ||
+	    (inode_state_read_once(inode) & (I_FREEING | I_WILL_FREE | I_NEW)) ||
 	    ext4_test_inode_flag(inode, EXT4_INODE_EA_INODE) ||
 	    ext4_verity_in_progress(inode))
 		return;
@@ -3473,7 +3473,7 @@ static bool ext4_inode_datasync_dirty(struct inode *inode)
 	/* Any metadata buffers to write? */
 	if (!list_empty(&inode->i_mapping->i_private_list))
 		return true;
-	return inode->i_state & I_DIRTY_DATASYNC;
+	return inode_state_read_once(inode) & I_DIRTY_DATASYNC;
 }
 
 static void ext4_set_iomap(struct inode *inode, struct iomap *iomap,
@@ -4581,7 +4581,7 @@ int ext4_truncate(struct inode *inode)
 	 * or it's a completely new inode. In those cases we might not
 	 * have i_rwsem locked because it's not necessary.
 	 */
-	if (!(inode->i_state & (I_NEW|I_FREEING)))
+	if (!(inode_state_read_once(inode) & (I_NEW | I_FREEING)))
 		WARN_ON(!inode_is_locked(inode));
 	trace_ext4_truncate_enter(inode);
 
@@ -5239,7 +5239,7 @@ struct inode *__ext4_iget(struct super_block *sb, unsigned long ino,
 	inode = iget_locked(sb, ino);
 	if (!inode)
 		return ERR_PTR(-ENOMEM);
-	if (!(inode->i_state & I_NEW)) {
+	if (!(inode_state_read_once(inode) & I_NEW)) {
 		ret = check_igot_inode(inode, flags, function, line);
 		if (ret) {
 			iput(inode);
@@ -5570,7 +5570,7 @@ static void __ext4_update_other_inode_time(struct super_block *sb,
 	if (inode_is_dirtytime_only(inode)) {
 		struct ext4_inode_info	*ei = EXT4_I(inode);
 
-		inode->i_state &= ~I_DIRTY_TIME;
+		inode_state_del(inode, I_DIRTY_TIME);
 		spin_unlock(&inode->i_lock);
 
 		spin_lock(&ei->i_raw_lock);
diff --git a/fs/ext4/orphan.c b/fs/ext4/orphan.c
index 7c7f792ad6ab..10eeb025380f 100644
--- a/fs/ext4/orphan.c
+++ b/fs/ext4/orphan.c
@@ -107,7 +107,7 @@ int ext4_orphan_add(handle_t *handle, struct inode *inode)
 	if (!sbi->s_journal || is_bad_inode(inode))
 		return 0;
 
-	WARN_ON_ONCE(!(inode->i_state & (I_NEW | I_FREEING)) &&
+	WARN_ON_ONCE(!(inode_state_read_once(inode) & (I_NEW | I_FREEING)) &&
 		     !inode_is_locked(inode));
 	/*
 	 * Inode orphaned in orphan file or in orphan list?
@@ -236,7 +236,7 @@ int ext4_orphan_del(handle_t *handle, struct inode *inode)
 	if (!sbi->s_journal && !(sbi->s_mount_state & EXT4_ORPHAN_FS))
 		return 0;
 
-	WARN_ON_ONCE(!(inode->i_state & (I_NEW | I_FREEING)) &&
+	WARN_ON_ONCE(!(inode_state_read_once(inode) & (I_NEW | I_FREEING)) &&
 		     !inode_is_locked(inode));
 	if (ext4_test_inode_state(inode, EXT4_STATE_ORPHAN_FILE))
 		return ext4_orphan_file_del(handle, inode);
-- 
2.43.0