convert ext4 to ->evict_inode()

pretty much brute-force...

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

4 files changed, 16 insertions, 10 deletions

diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 19a4de57128a..6a0d52ca1434 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -1571,7 +1571,8 @@ extern int  ext4_write_inode(struct inode *, struct writeback_control *);
 extern int  ext4_setattr(struct dentry *, struct iattr *);
 extern int  ext4_getattr(struct vfsmount *mnt, struct dentry *dentry,
                                 struct kstat *stat);
-extern void ext4_delete_inode(struct inode *);
+extern void ext4_evict_inode(struct inode *);
+extern void ext4_clear_inode(struct inode *);
 extern int  ext4_sync_inode(handle_t *, struct inode *);
 extern void ext4_dirty_inode(struct inode *);
 extern int ext4_change_inode_journal_flag(struct inode *, int);
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index 25c4b3173fd9..07e791a856da 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -222,7 +222,7 @@ void ext4_free_inode(handle_t *handle, struct inode *inode)
         is_directory = S_ISDIR(inode->i_mode);
 
         /* Do this BEFORE marking the inode not in use or returning an error */
-        clear_inode(inode);
+        ext4_clear_inode(inode);
 
         es = EXT4_SB(sb)->s_es;
         if (ino < EXT4_FIRST_INO(sb) || ino > le32_to_cpu(es->s_inodes_count)) {
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 1fb390359bc5..c6d365f9c663 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -167,11 +167,16 @@ int ext4_truncate_restart_trans(handle_t *handle, struct inode *inode,
 /*
  * Called at the last iput() if i_nlink is zero.
  */
-void ext4_delete_inode(struct inode *inode)
+void ext4_evict_inode(struct inode *inode)
 {
         handle_t *handle;
         int err;
 
+        if (inode->i_nlink) {
+                truncate_inode_pages(&inode->i_data, 0);
+                goto no_delete;
+        }
+
         if (!is_bad_inode(inode))
                 dquot_initialize(inode);
 
@@ -245,13 +250,13 @@ void ext4_delete_inode(struct inode *inode)
          */
         if (ext4_mark_inode_dirty(handle, inode))
                 /* If that failed, just do the required in-core inode clear. */
-                clear_inode(inode);
+                ext4_clear_inode(inode);
         else
                 ext4_free_inode(handle, inode);
         ext4_journal_stop(handle);
         return;
 no_delete:
-        clear_inode(inode);     /* We must guarantee clearing of inode... */
+        ext4_clear_inode(inode);        /* We must guarantee clearing of inode... */
 }
 
 typedef struct {
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 4e8983a9811b..f627a6a4c317 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -813,8 +813,10 @@ static void destroy_inodecache(void)
         kmem_cache_destroy(ext4_inode_cachep);
 }
 
-static void ext4_clear_inode(struct inode *inode)
+void ext4_clear_inode(struct inode *inode)
 {
+        invalidate_inode_buffers(inode);
+        end_writeback(inode);
         dquot_drop(inode);
         ext4_discard_preallocations(inode);
         if (EXT4_JOURNAL(inode))
@@ -1100,14 +1102,13 @@ static const struct super_operations ext4_sops = {
         .destroy_inode  = ext4_destroy_inode,
         .write_inode    = ext4_write_inode,
         .dirty_inode    = ext4_dirty_inode,
-        .delete_inode   = ext4_delete_inode,
+        .evict_inode    = ext4_evict_inode,
         .put_super      = ext4_put_super,
         .sync_fs        = ext4_sync_fs,
         .freeze_fs      = ext4_freeze,
         .unfreeze_fs    = ext4_unfreeze,
         .statfs         = ext4_statfs,
         .remount_fs     = ext4_remount,
-        .clear_inode    = ext4_clear_inode,
         .show_options   = ext4_show_options,
 #ifdef CONFIG_QUOTA
         .quota_read     = ext4_quota_read,
@@ -1121,12 +1122,11 @@ static const struct super_operations ext4_nojournal_sops = {
         .destroy_inode  = ext4_destroy_inode,
         .write_inode    = ext4_write_inode,
         .dirty_inode    = ext4_dirty_inode,
-        .delete_inode   = ext4_delete_inode,
+        .evict_inode    = ext4_evict_inode,
         .write_super    = ext4_write_super,
         .put_super      = ext4_put_super,
         .statfs         = ext4_statfs,
         .remount_fs     = ext4_remount,
-        .clear_inode    = ext4_clear_inode,
         .show_options   = ext4_show_options,
 #ifdef CONFIG_QUOTA
         .quota_read     = ext4_quota_read,