[PATCH v2 08/10] ocfs2: retire ocfs2_drop_inode() and I_WILL_FREE usage

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This postpones the writeout to ocfs2_evict_inode(), which I'm told is
fine (tm).

This is in preparation for I_WILL_FREE flag removal.

Reviewed-by: Jan Kara <jack@xxxxxxx>
Signed-off-by: Mateusz Guzik <mjguzik@xxxxxxxxx>
---
 fs/ocfs2/inode.c       | 23 ++---------------------
 fs/ocfs2/inode.h       |  1 -
 fs/ocfs2/ocfs2_trace.h |  2 --
 fs/ocfs2/super.c       |  2 +-
 4 files changed, 3 insertions(+), 25 deletions(-)

diff --git a/fs/ocfs2/inode.c b/fs/ocfs2/inode.c
index 02312d4fbd7b..671c2303019b 100644
--- a/fs/ocfs2/inode.c
+++ b/fs/ocfs2/inode.c
@@ -1287,6 +1287,8 @@ static void ocfs2_clear_inode(struct inode *inode)
 
 void ocfs2_evict_inode(struct inode *inode)
 {
+	write_inode_now(inode, 1);
+
 	if (!inode->i_nlink ||
 	    (OCFS2_I(inode)->ip_flags & OCFS2_INODE_MAYBE_ORPHANED)) {
 		ocfs2_delete_inode(inode);
@@ -1296,27 +1298,6 @@ void ocfs2_evict_inode(struct inode *inode)
 	ocfs2_clear_inode(inode);
 }
 
-/* Called under inode_lock, with no more references on the
- * struct inode, so it's safe here to check the flags field
- * and to manipulate i_nlink without any other locks. */
-int ocfs2_drop_inode(struct inode *inode)
-{
-	struct ocfs2_inode_info *oi = OCFS2_I(inode);
-
-	trace_ocfs2_drop_inode((unsigned long long)oi->ip_blkno,
-				inode->i_nlink, oi->ip_flags);
-
-	assert_spin_locked(&inode->i_lock);
-	inode_state_add(inode, I_WILL_FREE);
-	spin_unlock(&inode->i_lock);
-	write_inode_now(inode, 1);
-	spin_lock(&inode->i_lock);
-	WARN_ON(inode_state_read(inode) & I_NEW);
-	inode_state_del(inode, I_WILL_FREE);
-
-	return 1;
-}
-
 /*
  * This is called from our getattr.
  */
diff --git a/fs/ocfs2/inode.h b/fs/ocfs2/inode.h
index accf03d4765e..07bd838e7843 100644
--- a/fs/ocfs2/inode.h
+++ b/fs/ocfs2/inode.h
@@ -116,7 +116,6 @@ static inline struct ocfs2_caching_info *INODE_CACHE(struct inode *inode)
 }
 
 void ocfs2_evict_inode(struct inode *inode);
-int ocfs2_drop_inode(struct inode *inode);
 
 /* Flags for ocfs2_iget() */
 #define OCFS2_FI_FLAG_SYSFILE		0x1
diff --git a/fs/ocfs2/ocfs2_trace.h b/fs/ocfs2/ocfs2_trace.h
index 54ed1495de9a..4b32fb5658ad 100644
--- a/fs/ocfs2/ocfs2_trace.h
+++ b/fs/ocfs2/ocfs2_trace.h
@@ -1569,8 +1569,6 @@ DEFINE_OCFS2_ULL_ULL_UINT_EVENT(ocfs2_delete_inode);
 
 DEFINE_OCFS2_ULL_UINT_EVENT(ocfs2_clear_inode);
 
-DEFINE_OCFS2_ULL_UINT_UINT_EVENT(ocfs2_drop_inode);
-
 TRACE_EVENT(ocfs2_inode_revalidate,
 	TP_PROTO(void *inode, unsigned long long ino,
 		 unsigned int flags),
diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index 53daa4482406..e4b0d25f4869 100644
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -129,7 +129,7 @@ static const struct super_operations ocfs2_sops = {
 	.statfs		= ocfs2_statfs,
 	.alloc_inode	= ocfs2_alloc_inode,
 	.free_inode	= ocfs2_free_inode,
-	.drop_inode	= ocfs2_drop_inode,
+	.drop_inode	= generic_delete_inode,
 	.evict_inode	= ocfs2_evict_inode,
 	.sync_fs	= ocfs2_sync_fs,
 	.put_super	= ocfs2_put_super,
-- 
2.43.0





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