[PATCH 1/7] vfs: replace invalidate_inodes() with evict_inodes()

[Dave Chinner <david@fromorbit.com>]

From: Dave Chinner <dchinner@redhat.com>

As of commit e127b9bccdb0 ("fs: simplify invalidate_inodes"),
invalidate_inodes() is functionally identical to evict_inodes().
Replace calls to invalidate_inodes() with a call to
evict_inodes() and kill the former.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
---
 fs/inode.c    | 40 ----------------------------------------
 fs/internal.h |  1 -
 fs/super.c    |  2 +-
 3 files changed, 1 insertion(+), 42 deletions(-)

diff --git a/fs/inode.c b/fs/inode.c
index 471ae4a31549..0a53d8c34203 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -827,46 +827,6 @@ void evict_inodes(struct super_block *sb)
 }
 EXPORT_SYMBOL_GPL(evict_inodes);
 
-/**
- * invalidate_inodes	- attempt to free all inodes on a superblock
- * @sb:		superblock to operate on
- *
- * Attempts to free all inodes (including dirty inodes) for a given superblock.
- */
-void invalidate_inodes(struct super_block *sb)
-{
-	struct inode *inode, *next;
-	LIST_HEAD(dispose);
-
-again:
-	spin_lock(&sb->s_inode_list_lock);
-	list_for_each_entry_safe(inode, next, &sb->s_inodes, i_sb_list) {
-		spin_lock(&inode->i_lock);
-		if (inode->i_state & (I_NEW | I_FREEING | I_WILL_FREE)) {
-			spin_unlock(&inode->i_lock);
-			continue;
-		}
-		if (atomic_read(&inode->i_count)) {
-			spin_unlock(&inode->i_lock);
-			continue;
-		}
-
-		inode->i_state |= I_FREEING;
-		inode_lru_list_del(inode);
-		spin_unlock(&inode->i_lock);
-		list_add(&inode->i_lru, &dispose);
-		if (need_resched()) {
-			spin_unlock(&sb->s_inode_list_lock);
-			cond_resched();
-			dispose_list(&dispose);
-			goto again;
-		}
-	}
-	spin_unlock(&sb->s_inode_list_lock);
-
-	dispose_list(&dispose);
-}
-
 /*
  * Isolate the inode from the LRU in preparation for freeing it.
  *
diff --git a/fs/internal.h b/fs/internal.h
index 8c1b7acbbe8f..37749b429e80 100644
--- a/fs/internal.h
+++ b/fs/internal.h
@@ -207,7 +207,6 @@ bool in_group_or_capable(struct mnt_idmap *idmap,
  * fs-writeback.c
  */
 extern long get_nr_dirty_inodes(void);
-void invalidate_inodes(struct super_block *sb);
 
 /*
  * dcache.c
diff --git a/fs/super.c b/fs/super.c
index 1db230432960..a16e6a6342e0 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -1417,7 +1417,7 @@ static void fs_bdev_mark_dead(struct block_device *bdev, bool surprise)
 	if (!surprise)
 		sync_filesystem(sb);
 	shrink_dcache_sb(sb);
-	invalidate_inodes(sb);
+	evict_inodes(sb);
 	if (sb->s_op->shutdown)
 		sb->s_op->shutdown(sb);
 
-- 
2.45.2