merge ext2 delete_inode and clear_inode, switch to ->evict_inode()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

4 files changed, 36 insertions, 37 deletions

diff --git a/fs/ext2/ext2.h b/fs/ext2/ext2.h
index 8f53d11bf957..416daa62242c 100644
--- a/fs/ext2/ext2.h
+++ b/fs/ext2/ext2.h
@@ -119,7 +119,7 @@ extern unsigned long ext2_count_free (struct buffer_head *, unsigned);
 /* inode.c */
 extern struct inode *ext2_iget (struct super_block *, unsigned long);
 extern int ext2_write_inode (struct inode *, struct writeback_control *);
-extern void ext2_delete_inode (struct inode *);
+extern void ext2_evict_inode(struct inode *);
 extern int ext2_sync_inode (struct inode *);
 extern int ext2_get_block(struct inode *, sector_t, struct buffer_head *, int);
 extern int ext2_setattr (struct dentry *, struct iattr *);
diff --git a/fs/ext2/ialloc.c b/fs/ext2/ialloc.c
index 938dbc739d00..ad70479aabff 100644
--- a/fs/ext2/ialloc.c
+++ b/fs/ext2/ialloc.c
@@ -118,19 +118,14 @@ void ext2_free_inode (struct inode * inode)
          * Note: we must free any quota before locking the superblock,
          * as writing the quota to disk may need the lock as well.
          */
-        if (!is_bad_inode(inode)) {
-                /* Quota is already initialized in iput() */
-                ext2_xattr_delete_inode(inode);
-                dquot_free_inode(inode);
-                dquot_drop(inode);
-        }
+        /* Quota is already initialized in iput() */
+        ext2_xattr_delete_inode(inode);
+        dquot_free_inode(inode);
+        dquot_drop(inode);
 
         es = EXT2_SB(sb)->s_es;
         is_directory = S_ISDIR(inode->i_mode);
 
-        /* Do this BEFORE marking the inode not in use or returning an error */
-        clear_inode (inode);
-
         if (ino < EXT2_FIRST_INO(sb) ||
             ino > le32_to_cpu(es->s_inodes_count)) {
                 ext2_error (sb, "ext2_free_inode",
diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c
index e8af26dd6715..940c96168868 100644
--- a/fs/ext2/inode.c
+++ b/fs/ext2/inode.c
@@ -69,26 +69,42 @@ static void ext2_write_failed(struct address_space *mapping, loff_t to)
 /*
  * Called at the last iput() if i_nlink is zero.
  */
-void ext2_delete_inode (struct inode * inode)
+void ext2_evict_inode(struct inode * inode)
 {
-        if (!is_bad_inode(inode))
+        struct ext2_block_alloc_info *rsv;
+        int want_delete = 0;
+
+        if (!inode->i_nlink && !is_bad_inode(inode)) {
+                want_delete = 1;
                 dquot_initialize(inode);
+        } else {
+                dquot_drop(inode);
+        }
+
         truncate_inode_pages(&inode->i_data, 0);
 
-        if (is_bad_inode(inode))
-                goto no_delete;
-        EXT2_I(inode)->i_dtime  = get_seconds();
-        mark_inode_dirty(inode);
-        __ext2_write_inode(inode, inode_needs_sync(inode));
+        if (want_delete) {
+                /* set dtime */
+                EXT2_I(inode)->i_dtime  = get_seconds();
+                mark_inode_dirty(inode);
+                __ext2_write_inode(inode, inode_needs_sync(inode));
+                /* truncate to 0 */
+                inode->i_size = 0;
+                if (inode->i_blocks)
+                        ext2_truncate_blocks(inode, 0);
+        }
 
-        inode->i_size = 0;
-        if (inode->i_blocks)
-                ext2_truncate_blocks(inode, 0);
-        ext2_free_inode (inode);
+        invalidate_inode_buffers(inode);
+        end_writeback(inode);
+
+        ext2_discard_reservation(inode);
+        rsv = EXT2_I(inode)->i_block_alloc_info;
+        EXT2_I(inode)->i_block_alloc_info = NULL;
+        if (unlikely(rsv))
+                kfree(rsv);
 
-        return;
-no_delete:
-        clear_inode(inode);     /* We must guarantee clearing of inode... */
+        if (want_delete)
+                ext2_free_inode(inode);
 }
 
 typedef struct {
diff --git a/fs/ext2/super.c b/fs/ext2/super.c
index 7ff43f4a59cd..1ec602673ea8 100644
--- a/fs/ext2/super.c
+++ b/fs/ext2/super.c
@@ -195,17 +195,6 @@ static void destroy_inodecache(void)
         kmem_cache_destroy(ext2_inode_cachep);
 }
 
-static void ext2_clear_inode(struct inode *inode)
-{
-        struct ext2_block_alloc_info *rsv = EXT2_I(inode)->i_block_alloc_info;
-
-        dquot_drop(inode);
-        ext2_discard_reservation(inode);
-        EXT2_I(inode)->i_block_alloc_info = NULL;
-        if (unlikely(rsv))
-                kfree(rsv);
-}
-
 static int ext2_show_options(struct seq_file *seq, struct vfsmount *vfs)
 {
         struct super_block *sb = vfs->mnt_sb;
@@ -299,13 +288,12 @@ static const struct super_operations ext2_sops = {
         .alloc_inode    = ext2_alloc_inode,
         .destroy_inode  = ext2_destroy_inode,
         .write_inode    = ext2_write_inode,
-        .delete_inode   = ext2_delete_inode,
+        .evict_inode    = ext2_evict_inode,
         .put_super      = ext2_put_super,
         .write_super    = ext2_write_super,
         .sync_fs        = ext2_sync_fs,
         .statfs         = ext2_statfs,
         .remount_fs     = ext2_remount,
-        .clear_inode    = ext2_clear_inode,
         .show_options   = ext2_show_options,
 #ifdef CONFIG_QUOTA
         .quota_read     = ext2_quota_read,