[JFFS2] Add 'jeb' argument to jffs2_prealloc_raw_node_refs()

Preallocation of refs is shortly going to be a per-eraseblock thing,
rather than per-filesystem. Add the required argument to the function.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>

fs/jffs2/erase.c

@@ -383,7 +383,7 @@ static void jffs2_mark_erased_block(struct jffs2_sb_info *c, struct jffs2_eraseb
 			.totlen =	cpu_to_je32(c->cleanmarker_size)
 		};
 
-		jffs2_prealloc_raw_node_refs(c, 1);
+		jffs2_prealloc_raw_node_refs(c, jeb, 1);
 
 		marker.hdr_crc = cpu_to_je32(crc32(0, &marker, sizeof(struct jffs2_unknown_node)-4));
 

fs/jffs2/malloc.c

@@ -190,7 +190,8 @@ void jffs2_free_tmp_dnode_info(struct jffs2_tmp_dnode_info *x)
 	kmem_cache_free(tmp_dnode_info_slab, x);
 }
 
-int jffs2_prealloc_raw_node_refs(struct jffs2_sb_info *c, int nr)
+int jffs2_prealloc_raw_node_refs(struct jffs2_sb_info *c,
+				 struct jffs2_eraseblock *jeb, int nr)
 {
 	struct jffs2_raw_node_ref *p = c->refs;
 

fs/jffs2/nodelist.h

@@ -378,7 +378,8 @@ struct jffs2_raw_inode *jffs2_alloc_raw_inode(void);
 void jffs2_free_raw_inode(struct jffs2_raw_inode *);
 struct jffs2_tmp_dnode_info *jffs2_alloc_tmp_dnode_info(void);
 void jffs2_free_tmp_dnode_info(struct jffs2_tmp_dnode_info *);
-int jffs2_prealloc_raw_node_refs(struct jffs2_sb_info *c, int nr);
+int jffs2_prealloc_raw_node_refs(struct jffs2_sb_info *c, 
+				 struct jffs2_eraseblock *jeb, int nr);
 struct jffs2_raw_node_ref *__jffs2_alloc_raw_node_ref(void);
 void __jffs2_free_raw_node_ref(struct jffs2_raw_node_ref *);
 struct jffs2_node_frag *jffs2_alloc_node_frag(void);

fs/jffs2/nodemgmt.c

@@ -138,7 +138,7 @@ int jffs2_reserve_space(struct jffs2_sb_info *c, uint32_t minsize,
 	}
 	spin_unlock(&c->erase_completion_lock);
 	if (!ret)
-		ret = jffs2_prealloc_raw_node_refs(c, 1);
+		ret = jffs2_prealloc_raw_node_refs(c, c->nextblock, 1);
 	if (ret)
 		up(&c->alloc_sem);
 	return ret;
@@ -161,7 +161,7 @@ int jffs2_reserve_space_gc(struct jffs2_sb_info *c, uint32_t minsize,
 	}
 	spin_unlock(&c->erase_completion_lock);
 	if (!ret)
-		ret = jffs2_prealloc_raw_node_refs(c, 1);
+		ret = jffs2_prealloc_raw_node_refs(c, c->nextblock, 1);
 
 	return ret;
 }

fs/jffs2/scan.c

@@ -244,7 +244,7 @@ int jffs2_scan_medium(struct jffs2_sb_info *c)
 
 		D1(printk(KERN_DEBUG "jffs2_scan_medium(): Skipping %d bytes in nextblock to ensure page alignment\n",
 			  skip));
-		jffs2_prealloc_raw_node_refs(c, 1);
+		jffs2_prealloc_raw_node_refs(c, c->nextblock, 1);
 		jffs2_scan_dirty_space(c, c->nextblock, skip);
 	}
 #endif
@@ -576,7 +576,7 @@ scan_more:
 		jffs2_dbg_acct_paranoia_check_nolock(c, jeb);
 
 		/* Make sure there are node refs available for use */
-		err = jffs2_prealloc_raw_node_refs(c, 2);
+		err = jffs2_prealloc_raw_node_refs(c, jeb, 2);
 		if (err)
 			return err;
 

fs/jffs2/summary.c

@@ -400,7 +400,7 @@ static int jffs2_sum_process_sum_data(struct jffs2_sb_info *c, struct jffs2_eras
 		dbg_summary("processing summary index %d\n", i);
 
 		/* Make sure there's a spare ref for dirty space */
-		err = jffs2_prealloc_raw_node_refs(c, 2);
+		err = jffs2_prealloc_raw_node_refs(c, jeb, 2);
 		if (err)
 			return err;
 
@@ -630,7 +630,7 @@ int jffs2_sum_scan_sumnode(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb
 		return ret;		/* real error */
 
 	/* for PARANOIA_CHECK */
-	ret = jffs2_prealloc_raw_node_refs(c, 2);
+	ret = jffs2_prealloc_raw_node_refs(c, jeb, 2);
 	if (ret)
 		return ret;
 
@@ -815,9 +815,9 @@ int jffs2_sum_write_sumnode(struct jffs2_sb_info *c)
 	dbg_summary("called\n");
 
 	spin_unlock(&c->erase_completion_lock);
-	jffs2_prealloc_raw_node_refs(c, 1);
 
 	jeb = c->nextblock;
+	jffs2_prealloc_raw_node_refs(c, jeb, 1);
 
 	if (!c->summary->sum_num || !c->summary->sum_list_head) {
 		JFFS2_WARNING("Empty summary info!!!\n");

fs/jffs2/wbuf.c

@@ -179,13 +179,13 @@ static void jffs2_wbuf_recover(struct jffs2_sb_info *c)
 	unsigned char *buf;
 	uint32_t start, end, ofs, len;
 
-	if (jffs2_prealloc_raw_node_refs(c, c->reserved_refs + 1))
+	jeb = &c->blocks[c->wbuf_ofs / c->sector_size];
+
+	if (jffs2_prealloc_raw_node_refs(c, jeb, c->reserved_refs + 1))
 		return;
 
 	spin_lock(&c->erase_completion_lock);
 
-	jeb = &c->blocks[c->wbuf_ofs / c->sector_size];
-
 	jffs2_block_refile(c, jeb, REFILE_NOTEMPTY);
 
 	/* Find the first node to be recovered, by skipping over every
@@ -417,7 +417,7 @@ static int __jffs2_flush_wbuf(struct jffs2_sb_info *c, int pad)
 	if (!c->wbuf_len)	/* already checked c->wbuf above */
 		return 0;
 
-	if (jffs2_prealloc_raw_node_refs(c, c->reserved_refs + 1))
+	if (jffs2_prealloc_raw_node_refs(c, c->nextblock, c->reserved_refs + 1))
 		return -ENOMEM;
 
 	/* claim remaining space on the page