Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel…

…/git/ryusuke/nilfs2

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2:
  nilfs2: use mark_buffer_dirty to mark btnode or meta data dirty
  nilfs2: always set back pointer to host inode in mapping->host
  nilfs2: get rid of NILFS_I_NILFS
  nilfs2: use list_first_entry
  nilfs2: use empty_aops for gc-inodes
  nilfs2: implement resize ioctl
  nilfs2: add truncation routine of segment usage file
  nilfs2: add routine to move secondary super block
  nilfs2: add ioctl which limits range of segment to be allocated
  nilfs2: zero fill unused portion of super root block
  nilfs2: super root size should change depending on inode size
  nilfs2: get rid of private page allocator
  nilfs2: merge list_del()/list_add_tail() to list_move_tail()

fs/nilfs2/alloc.c

@@ -489,8 +489,8 @@ int nilfs_palloc_prepare_alloc_entry(struct inode *inode,
 void nilfs_palloc_commit_alloc_entry(struct inode *inode,
 				     struct nilfs_palloc_req *req)
 {
-	nilfs_mdt_mark_buffer_dirty(req->pr_bitmap_bh);
-	nilfs_mdt_mark_buffer_dirty(req->pr_desc_bh);
+	mark_buffer_dirty(req->pr_bitmap_bh);
+	mark_buffer_dirty(req->pr_desc_bh);
 	nilfs_mdt_mark_dirty(inode);
 
 	brelse(req->pr_bitmap_bh);
@@ -527,8 +527,8 @@ void nilfs_palloc_commit_free_entry(struct inode *inode,
 	kunmap(req->pr_bitmap_bh->b_page);
 	kunmap(req->pr_desc_bh->b_page);
 
-	nilfs_mdt_mark_buffer_dirty(req->pr_desc_bh);
-	nilfs_mdt_mark_buffer_dirty(req->pr_bitmap_bh);
+	mark_buffer_dirty(req->pr_desc_bh);
+	mark_buffer_dirty(req->pr_bitmap_bh);
 	nilfs_mdt_mark_dirty(inode);
 
 	brelse(req->pr_bitmap_bh);
@@ -683,8 +683,8 @@ int nilfs_palloc_freev(struct inode *inode, __u64 *entry_nrs, size_t nitems)
 		kunmap(bitmap_bh->b_page);
 		kunmap(desc_bh->b_page);
 
-		nilfs_mdt_mark_buffer_dirty(desc_bh);
-		nilfs_mdt_mark_buffer_dirty(bitmap_bh);
+		mark_buffer_dirty(desc_bh);
+		mark_buffer_dirty(bitmap_bh);
 		nilfs_mdt_mark_dirty(inode);
 
 		brelse(bitmap_bh);

fs/nilfs2/bmap.c

@@ -34,7 +34,9 @@
 
 struct inode *nilfs_bmap_get_dat(const struct nilfs_bmap *bmap)
 {
-	return NILFS_I_NILFS(bmap->b_inode)->ns_dat;
+	struct the_nilfs *nilfs = bmap->b_inode->i_sb->s_fs_info;
+
+	return nilfs->ns_dat;
 }
 
 static int nilfs_bmap_convert_error(struct nilfs_bmap *bmap,

fs/nilfs2/btnode.c

@@ -34,12 +34,6 @@
 #include "page.h"
 #include "btnode.h"
 
-void nilfs_btnode_cache_init(struct address_space *btnc,
-			     struct backing_dev_info *bdi)
-{
-	nilfs_mapping_init(btnc, bdi);
-}
-
 void nilfs_btnode_cache_clear(struct address_space *btnc)
 {
 	invalidate_mapping_pages(btnc, 0, -1);
@@ -62,7 +56,7 @@ nilfs_btnode_create_block(struct address_space *btnc, __u64 blocknr)
 		BUG();
 	}
 	memset(bh->b_data, 0, 1 << inode->i_blkbits);
-	bh->b_bdev = NILFS_I_NILFS(inode)->ns_bdev;
+	bh->b_bdev = inode->i_sb->s_bdev;
 	bh->b_blocknr = blocknr;
 	set_buffer_mapped(bh);
 	set_buffer_uptodate(bh);
@@ -94,10 +88,11 @@ int nilfs_btnode_submit_block(struct address_space *btnc, __u64 blocknr,
 	if (pblocknr == 0) {
 		pblocknr = blocknr;
 		if (inode->i_ino != NILFS_DAT_INO) {
-			struct inode *dat = NILFS_I_NILFS(inode)->ns_dat;
+			struct the_nilfs *nilfs = inode->i_sb->s_fs_info;
 
 			/* blocknr is a virtual block number */
-			err = nilfs_dat_translate(dat, blocknr, &pblocknr);
+			err = nilfs_dat_translate(nilfs->ns_dat, blocknr,
+						  &pblocknr);
 			if (unlikely(err)) {
 				brelse(bh);
 				goto out_locked;
@@ -120,7 +115,7 @@ int nilfs_btnode_submit_block(struct address_space *btnc, __u64 blocknr,
 		goto found;
 	}
 	set_buffer_mapped(bh);
-	bh->b_bdev = NILFS_I_NILFS(inode)->ns_bdev;
+	bh->b_bdev = inode->i_sb->s_bdev;
 	bh->b_blocknr = pblocknr; /* set block address for read */
 	bh->b_end_io = end_buffer_read_sync;
 	get_bh(bh);
@@ -259,7 +254,7 @@ void nilfs_btnode_commit_change_key(struct address_space *btnc,
 				       "invalid oldkey %lld (newkey=%lld)",
 				       (unsigned long long)oldkey,
 				       (unsigned long long)newkey);
-		nilfs_btnode_mark_dirty(obh);
+		mark_buffer_dirty(obh);
 
 		spin_lock_irq(&btnc->tree_lock);
 		radix_tree_delete(&btnc->page_tree, oldkey);
@@ -271,7 +266,7 @@ void nilfs_btnode_commit_change_key(struct address_space *btnc,
 		unlock_page(opage);
 	} else {
 		nilfs_copy_buffer(nbh, obh);
-		nilfs_btnode_mark_dirty(nbh);
+		mark_buffer_dirty(nbh);
 
 		nbh->b_blocknr = newkey;
 		ctxt->bh = nbh;

fs/nilfs2/btnode.h

@@ -37,7 +37,6 @@ struct nilfs_btnode_chkey_ctxt {
 	struct buffer_head *newbh;
 };
 
-void nilfs_btnode_cache_init(struct address_space *, struct backing_dev_info *);
 void nilfs_btnode_cache_clear(struct address_space *);
 struct buffer_head *nilfs_btnode_create_block(struct address_space *btnc,
 					      __u64 blocknr);
@@ -51,7 +50,4 @@ void nilfs_btnode_commit_change_key(struct address_space *,
 void nilfs_btnode_abort_change_key(struct address_space *,
 				   struct nilfs_btnode_chkey_ctxt *);
 
-#define nilfs_btnode_mark_dirty(bh)	nilfs_mark_buffer_dirty(bh)
-
-
 #endif	/* _NILFS_BTNODE_H */

fs/nilfs2/btree.c

@@ -714,7 +714,7 @@ static void nilfs_btree_promote_key(struct nilfs_bmap *btree,
 				nilfs_btree_get_nonroot_node(path, level),
 				path[level].bp_index, key);
 			if (!buffer_dirty(path[level].bp_bh))
-				nilfs_btnode_mark_dirty(path[level].bp_bh);
+				mark_buffer_dirty(path[level].bp_bh);
 		} while ((path[level].bp_index == 0) &&
 			 (++level < nilfs_btree_height(btree) - 1));
 	}
@@ -739,7 +739,7 @@ static void nilfs_btree_do_insert(struct nilfs_bmap *btree,
 		nilfs_btree_node_insert(node, path[level].bp_index,
 					*keyp, *ptrp, ncblk);
 		if (!buffer_dirty(path[level].bp_bh))
-			nilfs_btnode_mark_dirty(path[level].bp_bh);
+			mark_buffer_dirty(path[level].bp_bh);
 
 		if (path[level].bp_index == 0)
 			nilfs_btree_promote_key(btree, path, level + 1,
@@ -777,9 +777,9 @@ static void nilfs_btree_carry_left(struct nilfs_bmap *btree,
 	nilfs_btree_node_move_left(left, node, n, ncblk, ncblk);
 
 	if (!buffer_dirty(path[level].bp_bh))
-		nilfs_btnode_mark_dirty(path[level].bp_bh);
+		mark_buffer_dirty(path[level].bp_bh);
 	if (!buffer_dirty(path[level].bp_sib_bh))
-		nilfs_btnode_mark_dirty(path[level].bp_sib_bh);
+		mark_buffer_dirty(path[level].bp_sib_bh);
 
 	nilfs_btree_promote_key(btree, path, level + 1,
 				nilfs_btree_node_get_key(node, 0));
@@ -823,9 +823,9 @@ static void nilfs_btree_carry_right(struct nilfs_bmap *btree,
 	nilfs_btree_node_move_right(node, right, n, ncblk, ncblk);
 
 	if (!buffer_dirty(path[level].bp_bh))
-		nilfs_btnode_mark_dirty(path[level].bp_bh);
+		mark_buffer_dirty(path[level].bp_bh);
 	if (!buffer_dirty(path[level].bp_sib_bh))
-		nilfs_btnode_mark_dirty(path[level].bp_sib_bh);
+		mark_buffer_dirty(path[level].bp_sib_bh);
 
 	path[level + 1].bp_index++;
 	nilfs_btree_promote_key(btree, path, level + 1,
@@ -870,9 +870,9 @@ static void nilfs_btree_split(struct nilfs_bmap *btree,
 	nilfs_btree_node_move_right(node, right, n, ncblk, ncblk);
 
 	if (!buffer_dirty(path[level].bp_bh))
-		nilfs_btnode_mark_dirty(path[level].bp_bh);
+		mark_buffer_dirty(path[level].bp_bh);
 	if (!buffer_dirty(path[level].bp_sib_bh))
-		nilfs_btnode_mark_dirty(path[level].bp_sib_bh);
+		mark_buffer_dirty(path[level].bp_sib_bh);
 
 	newkey = nilfs_btree_node_get_key(right, 0);
 	newptr = path[level].bp_newreq.bpr_ptr;
@@ -919,7 +919,7 @@ static void nilfs_btree_grow(struct nilfs_bmap *btree,
 	nilfs_btree_node_set_level(root, level + 1);
 
 	if (!buffer_dirty(path[level].bp_sib_bh))
-		nilfs_btnode_mark_dirty(path[level].bp_sib_bh);
+		mark_buffer_dirty(path[level].bp_sib_bh);
 
 	path[level].bp_bh = path[level].bp_sib_bh;
 	path[level].bp_sib_bh = NULL;
@@ -1194,7 +1194,7 @@ static void nilfs_btree_do_delete(struct nilfs_bmap *btree,
 		nilfs_btree_node_delete(node, path[level].bp_index,
 					keyp, ptrp, ncblk);
 		if (!buffer_dirty(path[level].bp_bh))
-			nilfs_btnode_mark_dirty(path[level].bp_bh);
+			mark_buffer_dirty(path[level].bp_bh);
 		if (path[level].bp_index == 0)
 			nilfs_btree_promote_key(btree, path, level + 1,
 				nilfs_btree_node_get_key(node, 0));
@@ -1226,9 +1226,9 @@ static void nilfs_btree_borrow_left(struct nilfs_bmap *btree,
 	nilfs_btree_node_move_right(left, node, n, ncblk, ncblk);
 
 	if (!buffer_dirty(path[level].bp_bh))
-		nilfs_btnode_mark_dirty(path[level].bp_bh);
+		mark_buffer_dirty(path[level].bp_bh);
 	if (!buffer_dirty(path[level].bp_sib_bh))
-		nilfs_btnode_mark_dirty(path[level].bp_sib_bh);
+		mark_buffer_dirty(path[level].bp_sib_bh);
 
 	nilfs_btree_promote_key(btree, path, level + 1,
 				nilfs_btree_node_get_key(node, 0));
@@ -1258,9 +1258,9 @@ static void nilfs_btree_borrow_right(struct nilfs_bmap *btree,
 	nilfs_btree_node_move_left(node, right, n, ncblk, ncblk);
 
 	if (!buffer_dirty(path[level].bp_bh))
-		nilfs_btnode_mark_dirty(path[level].bp_bh);
+		mark_buffer_dirty(path[level].bp_bh);
 	if (!buffer_dirty(path[level].bp_sib_bh))
-		nilfs_btnode_mark_dirty(path[level].bp_sib_bh);
+		mark_buffer_dirty(path[level].bp_sib_bh);
 
 	path[level + 1].bp_index++;
 	nilfs_btree_promote_key(btree, path, level + 1,
@@ -1289,7 +1289,7 @@ static void nilfs_btree_concat_left(struct nilfs_bmap *btree,
 	nilfs_btree_node_move_left(left, node, n, ncblk, ncblk);
 
 	if (!buffer_dirty(path[level].bp_sib_bh))
-		nilfs_btnode_mark_dirty(path[level].bp_sib_bh);
+		mark_buffer_dirty(path[level].bp_sib_bh);
 
 	nilfs_btnode_delete(path[level].bp_bh);
 	path[level].bp_bh = path[level].bp_sib_bh;
@@ -1315,7 +1315,7 @@ static void nilfs_btree_concat_right(struct nilfs_bmap *btree,
 	nilfs_btree_node_move_left(node, right, n, ncblk, ncblk);
 
 	if (!buffer_dirty(path[level].bp_bh))
-		nilfs_btnode_mark_dirty(path[level].bp_bh);
+		mark_buffer_dirty(path[level].bp_bh);
 
 	nilfs_btnode_delete(path[level].bp_sib_bh);
 	path[level].bp_sib_bh = NULL;
@@ -1709,7 +1709,7 @@ nilfs_btree_commit_convert_and_insert(struct nilfs_bmap *btree,
 		nilfs_btree_node_init(node, 0, 1, n, ncblk, keys, ptrs);
 		nilfs_btree_node_insert(node, n, key, dreq->bpr_ptr, ncblk);
 		if (!buffer_dirty(bh))
-			nilfs_btnode_mark_dirty(bh);
+			mark_buffer_dirty(bh);
 		if (!nilfs_bmap_dirty(btree))
 			nilfs_bmap_set_dirty(btree);
 
@@ -1787,7 +1787,7 @@ static int nilfs_btree_propagate_p(struct nilfs_bmap *btree,
 {
 	while ((++level < nilfs_btree_height(btree) - 1) &&
 	       !buffer_dirty(path[level].bp_bh))
-		nilfs_btnode_mark_dirty(path[level].bp_bh);
+		mark_buffer_dirty(path[level].bp_bh);
 
 	return 0;
 }
@@ -2229,7 +2229,7 @@ static int nilfs_btree_mark(struct nilfs_bmap *btree, __u64 key, int level)
 	}
 
 	if (!buffer_dirty(bh))
-		nilfs_btnode_mark_dirty(bh);
+		mark_buffer_dirty(bh);
 	brelse(bh);
 	if (!nilfs_bmap_dirty(btree))
 		nilfs_bmap_set_dirty(btree);

fs/nilfs2/cpfile.c

@@ -216,14 +216,14 @@ int nilfs_cpfile_get_checkpoint(struct inode *cpfile,
 		if (!nilfs_cpfile_is_in_first(cpfile, cno))
 			nilfs_cpfile_block_add_valid_checkpoints(cpfile, cp_bh,
 								 kaddr, 1);
-		nilfs_mdt_mark_buffer_dirty(cp_bh);
+		mark_buffer_dirty(cp_bh);
 
 		kaddr = kmap_atomic(header_bh->b_page, KM_USER0);
 		header = nilfs_cpfile_block_get_header(cpfile, header_bh,
 						       kaddr);
 		le64_add_cpu(&header->ch_ncheckpoints, 1);
 		kunmap_atomic(kaddr, KM_USER0);
-		nilfs_mdt_mark_buffer_dirty(header_bh);
+		mark_buffer_dirty(header_bh);
 		nilfs_mdt_mark_dirty(cpfile);
 	}
 
@@ -326,7 +326,7 @@ int nilfs_cpfile_delete_checkpoints(struct inode *cpfile,
 		}
 		if (nicps > 0) {
 			tnicps += nicps;
-			nilfs_mdt_mark_buffer_dirty(cp_bh);
+			mark_buffer_dirty(cp_bh);
 			nilfs_mdt_mark_dirty(cpfile);
 			if (!nilfs_cpfile_is_in_first(cpfile, cno)) {
 				count =
@@ -358,7 +358,7 @@ int nilfs_cpfile_delete_checkpoints(struct inode *cpfile,
 		header = nilfs_cpfile_block_get_header(cpfile, header_bh,
 						       kaddr);
 		le64_add_cpu(&header->ch_ncheckpoints, -(u64)tnicps);
-		nilfs_mdt_mark_buffer_dirty(header_bh);
+		mark_buffer_dirty(header_bh);
 		nilfs_mdt_mark_dirty(cpfile);
 		kunmap_atomic(kaddr, KM_USER0);
 	}
@@ -671,10 +671,10 @@ static int nilfs_cpfile_set_snapshot(struct inode *cpfile, __u64 cno)
 	le64_add_cpu(&header->ch_nsnapshots, 1);
 	kunmap_atomic(kaddr, KM_USER0);
 
-	nilfs_mdt_mark_buffer_dirty(prev_bh);
-	nilfs_mdt_mark_buffer_dirty(curr_bh);
-	nilfs_mdt_mark_buffer_dirty(cp_bh);
-	nilfs_mdt_mark_buffer_dirty(header_bh);
+	mark_buffer_dirty(prev_bh);
+	mark_buffer_dirty(curr_bh);
+	mark_buffer_dirty(cp_bh);
+	mark_buffer_dirty(header_bh);
 	nilfs_mdt_mark_dirty(cpfile);
 
 	brelse(prev_bh);
@@ -774,10 +774,10 @@ static int nilfs_cpfile_clear_snapshot(struct inode *cpfile, __u64 cno)
 	le64_add_cpu(&header->ch_nsnapshots, -1);
 	kunmap_atomic(kaddr, KM_USER0);
 
-	nilfs_mdt_mark_buffer_dirty(next_bh);
-	nilfs_mdt_mark_buffer_dirty(prev_bh);
-	nilfs_mdt_mark_buffer_dirty(cp_bh);
-	nilfs_mdt_mark_buffer_dirty(header_bh);
+	mark_buffer_dirty(next_bh);
+	mark_buffer_dirty(prev_bh);
+	mark_buffer_dirty(cp_bh);
+	mark_buffer_dirty(header_bh);
 	nilfs_mdt_mark_dirty(cpfile);
 
 	brelse(prev_bh);

fs/nilfs2/dat.c

@@ -54,7 +54,7 @@ static int nilfs_dat_prepare_entry(struct inode *dat,
 static void nilfs_dat_commit_entry(struct inode *dat,
 				   struct nilfs_palloc_req *req)
 {
-	nilfs_mdt_mark_buffer_dirty(req->pr_entry_bh);
+	mark_buffer_dirty(req->pr_entry_bh);
 	nilfs_mdt_mark_dirty(dat);
 	brelse(req->pr_entry_bh);
 }
@@ -361,7 +361,7 @@ int nilfs_dat_move(struct inode *dat, __u64 vblocknr, sector_t blocknr)
 	entry->de_blocknr = cpu_to_le64(blocknr);
 	kunmap_atomic(kaddr, KM_USER0);
 
-	nilfs_mdt_mark_buffer_dirty(entry_bh);
+	mark_buffer_dirty(entry_bh);
 	nilfs_mdt_mark_dirty(dat);
 
 	brelse(entry_bh);

fs/nilfs2/file.c

@@ -111,7 +111,6 @@ static int nilfs_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
 	nilfs_transaction_commit(inode->i_sb);
 
  mapped:
-	SetPageChecked(page);
 	wait_on_page_writeback(page);
 	return VM_FAULT_LOCKED;
 }